feat: add multi-nodes docker-compose deployment example

fix: remove log message
feat: update packaged configuration
2023-07-01 11:38:16 -06:00 · 2023-07-01 11:33:59 -06:00 · 2023-06-30 17:51:01 -06:00 · 2023-07-01 01:32:10 +02:00 · 2023-06-30 10:26:52 -06:00 · 2023-06-30 10:26:27 -06:00
60 changed files with 1636 additions and 320 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -0,0 +1,9 @@
+/admin-key.json
+/config.yml
+/tools
+/out
+/dist
+/data
+/bin
+/.bouncer-token
+/.env
--- a/.gitignore
+++ b/.gitignore
@ -6,4 +6,5 @@
 /config.yml
 /admin-key.json
 /.bouncer-token
-/data
+/data
+/out
--- a/31
+++ b/31
@ -1,30 +1,49 @@
-FROM golang:1.19 AS BUILD
+FROM golang:1.20 AS BUILD

 RUN apt-get update \
    && apt-get install -y make

+ARG YQ_VERSION=4.34.1
+
+RUN mkdir -p /usr/local/bin \
+    && wget -O /usr/local/bin/yq https://github.com/mikefarah/yq/releases/download/v${YQ_VERSION}/yq_linux_amd64 \
+    && chmod +x /usr/local/bin/yq
+
 COPY . /src

 WORKDIR /src

 RUN make GORELEASER_ARGS='build --rm-dist --single-target --snapshot' goreleaser

-FROM busybox:latest AS RUNTIME
+# Patch config
+RUN /src/dist/bouncer_linux_amd64_v1/bouncer -c '' config dump > /src/dist/bouncer_linux_amd64_v1/config.yml \
+    && yq -i '.layers.queue.templateDir = "/usr/share/bouncer/layers/queue/templates"' /src/dist/bouncer_linux_amd64_v1/config.yml \
+    && yq -i '.admin.auth.privateKey = "/etc/bouncer/admin-key.json"' /src/dist/bouncer_linux_amd64_v1/config.yml \
+    && yq -i '.redis.adresses = ["redis:6379"]' /src/dist/bouncer_linux_amd64_v1/config.yml
+
+FROM alpine:3.18 AS RUNTIME

 ARG DUMB_INIT_VERSION=1.2.5

+RUN apk add --no-cache ca-certificates
+
 RUN mkdir -p /usr/local/bin \
    && wget -O /usr/local/bin/dumb-init https://github.com/Yelp/dumb-init/releases/download/v${DUMB_INIT_VERSION}/dumb-init_${DUMB_INIT_VERSION}_x86_64 \
    && chmod +x /usr/local/bin/dumb-init

 ENTRYPOINT ["/usr/local/bin/dumb-init", "--"]

-COPY --from=BUILD /src/dist/bouncer_linux_amd64_v1 /app
-COPY --from=BUILD /src/config.yml /etc/bouncer/config.yml
+RUN mkdir -p /usr/local/bin /usr/share/bouncer/bin /etc/bouncer
+
+COPY --from=BUILD /src/dist/bouncer_linux_amd64_v1/bouncer /usr/share/bouncer/bin/bouncer
+COPY --from=BUILD /src/layers /usr/share/bouncer/
+COPY --from=BUILD /src/dist/bouncer_linux_amd64_v1/config.yml /etc/bouncer/config.yml
+
+RUN ln -s /usr/share/bouncer/bin/bouncer /usr/local/bin/bouncer

 EXPOSE 8080
 EXPOSE 8081

-ENTRYPOINT ["/app/bouncer"]
+ENV BOUNCER_CONFIG=/etc/bouncer/config.yml

-CMD ["bouncer", "run", "-c", "/etc/bouncer/config.yml"]
+CMD ["bouncer"]
--- a/23
+++ b/23
@ -5,11 +5,11 @@ GITCHLOG_ARGS ?=
 SHELL := /bin/bash

 BOUNCER_VERSION ?= 
-GIT_VERSION := $(shell git describe --always)
+GIT_COMMIT := $(shell git rev-parse --short HEAD)
 DATE_VERSION := $(shell date +%Y.%-m.%-d)
-FULL_VERSION := v$(DATE_VERSION)-$(GIT_VERSION)$(if $(shell git diff --stat),-dirty,)
+FULL_VERSION := v$(DATE_VERSION)-$(GIT_COMMIT)$(if $(shell git diff --stat),-dirty,)

-DOCKER_IMAGE_NAME ?= cadoles/bouncer
+DOCKER_IMAGE_NAME ?= reg.cadoles.com/cadoles/bouncer
 DOCKER_IMAGE_TAG ?= $(FULL_VERSION)

 GOTEST_ARGS ?= -short
@ -25,16 +25,6 @@ test: test-go ## Executing tests
 test-go: deps
 	( set -o allexport && source .env && set +o allexport && go test -v -count=1 $(GOTEST_ARGS) ./... )

-test-install-script: tools/bin/bash_unit
-	tools/bin/bash_unit ./misc/script/test_install.sh
-
-tools/bin/bash_unit:
-	mkdir -p tools/bin
-	cd tools/bin && bash <(curl -s https://raw.githubusercontent.com/pgrange/bash_unit/master/install.sh)	
-
-lint: ## Lint sources code
-	golangci-lint run --enable-all $(LINT_ARGS)
-
 build: build-bouncer ## Build artefacts

 build-bouncer: deps ## Build executable
@ -83,14 +73,13 @@ finish-release:
 	git push --all
 	git push --tags

-install-git-hooks:
-	git config core.hooksPath .githooks
-
 docker-build:
 	docker build -t $(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG) .
+	docker tag $(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG) $(DOCKER_IMAGE_NAME):latest

 docker-release:
 	docker push $(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)
+	docker push $(DOCKER_IMAGE_NAME):latest

 gitea-release: tools/gitea-release/bin/gitea-release.sh goreleaser
 	mkdir -p .gitea-release
@ -106,7 +95,7 @@ gitea-release: tools/gitea-release/bin/gitea-release.sh goreleaser
 		GITEA_RELEASE_BASE_URL="https://forge.cadoles.com" \
 		GITEA_RELEASE_VERSION="$(FULL_VERSION)" \
 		GITEA_RELEASE_NAME="$(FULL_VERSION)" \
-		GITEA_RELEASE_COMMITISH_TARGET="$(GIT_VERSION)" \
+		GITEA_RELEASE_COMMITISH_TARGET="$(GIT_COMMIT)" \
 		GITEA_RELEASE_IS_DRAFT="false" \
 		GITEA_RELEASE_BODY="" \
 		GITEA_RELEASE_ATTACHMENTS="$$(find .gitea-release/* -type f)" \
--- a/doc/README.md
+++ b/doc/README.md
@ -3,10 +3,21 @@
 - [(FR) - Premiers pas](./fr/getting-started.md)
 - [(FR) - Architecture générale](./fr/general-architecture.md)

+## Exemples
+
+- [(FR) - Exemple de déploiement multi-noeuds](../misc/docker-compose/README.md)
 ## Référence

+- [(FR) - Layers](./fr/references/layers/README.md)
 - [Fichier de configuration](../misc/packaging/common/config.yml)

 ## Tutoriels

- [(FR) - Ajouter un calque de type "file d'attente"](./fr/tutorials/add-queue-layer.md)
+### Utilisation
+
+- [(FR) - Ajouter un calque de type "file d'attente"](./fr/tutorials/add-queue-layer.md)
+
+### Développement
+
+- [(FR) - Démarrer avec les sources](./fr/tutorials/getting-start-with-sources.md)
+- [(FR) - Créer son propre layer](./fr/tutorials/create-custom-layer.md)
--- a/doc/fr/general-architecture.md
+++ b/doc/fr/general-architecture.md
@ -1,3 +1,30 @@
-## Architecture générale
+# Architecture générale

-> TODO
+## Modèles de déploiement
+
+### Déploiement mono-noeud
+
+![](../resources/deployment_fr.png)
+## Terminologie
+
+Voici une liste des termes utilisés dans le lexique Bouncer.
+### Proxy
+
+Un "proxy" est une entité logique définissant le relation suivante:
+
+- Un ou plusieurs patrons de filtrage sous la forme `<host>:<port>`. Ceux ci identifient le ou les domaines associés à l'entité;
+- Une URL cible qui servira de base pour la réécriture des requêtes.
+
+Un "proxy" peut avoir zéro ou plusieurs "layers" associés.
+
+Un "proxy" peut être activé ou désactivé.
+
+Un "proxy" a un poids qui définit son niveau de priorité dans la pile de traitement (plus son poids est élevé plus il est prioritaire).
+
+### Layer
+
+Un "layer" (calque) est une entité logique définissant un traitement à appliquer aux requêtes et/ou aux réponses transitant par un proxy.
+
+Un "layer" peut être activé ou désactivé.
+
+Un "layer" a un poids qui définit son niveau de priorité dans la pile de traitement (plus son poids est élevé plus il est prioritaire).
--- a/doc/fr/getting-started.md
+++ b/doc/fr/getting-started.md
@ -59,7 +59,7 @@

    ```bash
    # Création du proxy nommé 'cadoles' vers https://www.cadoles.com
-    bouncer admin proxy create --to https://www.cadoles.com --proxy-name cadoles
+    bouncer admin proxy create --proxy-to https://www.cadoles.com --proxy-name cadoles
    ```

    Un message équivalent à celui ci devrait s'afficher:
@ -77,7 +77,7 @@

    ```bash
    # Activation du proxy
-    bouncer admin proxy update --proxy-name cadoles --enabled=true
+    bouncer admin proxy update --proxy-name cadoles --proxy-enabled=true
    ```

    Un message équivalent à celui ci devrait s'afficher:
--- a/doc/fr/references/layers/README.md
+++ b/doc/fr/references/layers/README.md
@ -0,0 +1,5 @@
+# Layers
+
+Vous trouverez ci-dessous la liste des entités "Layer" activables sur vos entité "Proxy":
+
+- [Queue](./queue.md) - File d'attente dynamique
--- a/doc/fr/references/layers/queue.md
+++ b/doc/fr/references/layers/queue.md
@ -0,0 +1,27 @@
+# Layer "Queue"
+
+## Description
+
+Ce layer permet d'ajouter un mécanisme de file d'attente dynamique au proxy associé.
+
+## Type
+
+`queue`
+
+## Options
+
+### `capacity`
+
+- **Type:** `number`
+- **Valeur par défaut:** `1000`
+- **Description:** Capacité maximum de la file d'attente.
+
+### `keepAlive`
+
+- **Type:** `string` (Voir [`time.ParseDuration()`](https://pkg.go.dev/time#ParseDuration) pour plus d'informations sur le format)
+- **Valeur par défaut:** `1m`
+- **Description:** Durée de vie d'une session dans la file d'attente sans activité avant expiration.
+
+### Schéma
+
+Voir le [schéma JSON](../../../../internal/proxy/director/layer/queue/schema/layer-options.json).
--- a/doc/fr/tutorials/add-queue-layer.md
+++ b/doc/fr/tutorials/add-queue-layer.md
@ -1,8 +1,8 @@
-# Ajouter un calque de type "file d'attente"
+# Ajouter un layer de type "file d'attente"

 ## Étapes

-1. Sur le serveur hébergeant les services Bouncer, utiliser le CLI pour créer un nouveau calque ("layer") pour votre proxy. Dans l'exemple, nous utiliserons le proxy `cadoles` créé dans le cadre du tutoriels ["Premiers pas"](../getting-started.md).
+1. Sur le serveur hébergeant les services Bouncer, utiliser le CLI pour créer un nouveau layer pour votre proxy. Dans l'exemple, nous utiliserons le proxy `cadoles` créé dans le cadre du tutoriels ["Premiers pas"](../getting-started.md).

    ```bash
    # Création d'un calque nommé 'my-queue' pour le proxy 'cadoles' de type 'queue'
@ -19,10 +19,10 @@
    +----------+-------+---------+--------+---------+-------------------------+-------------------------+
    ```

-2. À ce stade, le calque est encore inactif. Définir la capacité de la file d'attente à 1 et activer le calque en utilisant le CLI
+2. À ce stade, le layer est encore inactif. Définir la capacité de la file d'attente à 1 et activer le layer en utilisant le CLI:

    ```bash
-    bouncer admin layer update --proxy-name cadoles --layer-name my-queue --enabled=true --options '{"capacity": 1}'
+    bouncer admin layer update --proxy-name cadoles --layer-name my-queue --layer-enabled=true --layer-options '{"capacity": 1}'
    ```

    Un message équivalent à celui ci devrait s'afficher:
@ -43,6 +43,6 @@

 3. Le proxy `cadoles` a désormais une file d'attente avec une capacité d'un seul utilisateur. Vous pouvez effectuer le test en ouvrant votre navigateur sur l'adresse `http://<ip_serveur>:8080/` puis en ouvrant une fenêtre de navigation privée sur la même adresse:
    - La première fenêtre devrait afficher le site Cadoles;
-    - La seconde fenêtre devrait afficher le message suivant: `queued (rank: 2, status: 2/1)`.
+    - La seconde fenêtre devrait afficher une page indiquant qu'on est en file d'attente.

    Si vous laissez expirer la "session" de la première fenêtre (environ 1 minute par défaut) et que vous rafraîchissez la seconde, vous devriez avoir une inversion des états.
--- a/doc/fr/tutorials/create-custom-layer.md
+++ b/doc/fr/tutorials/create-custom-layer.md
@ -0,0 +1,446 @@
+# Créer son propre layer
+
+Dans ce tutoriel, nous verrons comment implémenter un layer personnalisé qui permettra d'ajouter une authentification de type [`Basic Auth](https://developer.mozilla.org/en-US/docs/Web/HTTP/Authentication) à un proxy.
+
+## Prérequis
+
+Avoir un environnement de développement local fonctionnel. Voir tutoriel ["Démarrer avec les sources"](./getting-started-with-sources.md).
+## Étapes
+### Préparer la structure de base du nouveau layer
+
+Une implémetation d'un layer se compose majoritairement de 3 éléments:
+
+- Une structure qui implémente une ou plusieurs interfaces (`director.MiddlewareLayer`, `director.RequestTransformerLayer` et/ou `director.ResponseTransformerLayer`);
+- Un schéma au format [JSON Schema](http://json-schema.org/) qui permettra de valider les "options" de notre layer;
+- Un fichier d'amorçage qui permettra à Bouncer de référencer notre nouveau layer.
+
+1. Créer le répertoire du `package` Go qui contiendra le code de votre layer. Celui ci s'appelera `basicauth`:
+
+    ```
+    mkdir -p internal/proxy/director/layer/basicauth
+    ```
+
+2. Créer la structure de base du layer:
+
+    ```go
+    // Fichier internal/proxy/director/layer/basicauth/basicauth.go
+
+    package basicauth
+
+    import (
+        proxy "forge.cadoles.com/Cadoles/go-proxy"
+        "forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
+        "forge.cadoles.com/cadoles/bouncer/internal/store"
+    )
+
+    // On définit le "type" (la chaîne de caractères) qui
+    // sera associé à notre layer
+    const LayerType store.LayerType = "basicauth"
+
+    // On déclare la structure qui
+    // servira de socle pour notre layer
+    type BasicAuth struct{}
+
+    // Les deux méthodes suivantes, attachées à 
+    // notre structure BasicAuth, permettent de remplir
+    // le contrat définit par l'interface 
+    // director.MiddlewareLayer
+
+    // LayerType implements director.MiddlewareLayer.
+    func (*BasicAuth) LayerType() store.LayerType {
+        return LayerType
+    }
+
+    // C'est dans la méthode "Middleware" qu'on pourra implémenter la
+    // logique appliquée par notre layer.
+    // En l'état actuel l'exécution de la méthode provoquera un panic().
+
+    // Middleware implements director.MiddlewareLayer.
+    func (*BasicAuth) Middleware(layer *store.Layer) proxy.Middleware {
+        panic("unimplemented")
+    }
+
+    func New() *BasicAuth {
+        return &BasicAuth{}
+    }
+
+    // Cette déclaration permet de profiter
+    // des capacités du compilateur pour s'assurer
+    // que la structure BasicAuth remplie toujours le
+    // contrat imposé par l'interface director.MiddlewareLayer
+    var _ director.MiddlewareLayer = &BasicAuth{}
+    ```
+
+3. Créer le schéma JSON qui sera associé aux options possibles pour notre layer:
+
+    ```json
+    // Fichier internal/proxy/director/layer/basicauth/layer-options.json
+
+    {
+        "$id": "https://forge.cadoles.com/cadoles/bouncer/schemas/basicauth-layer-options",
+        "title": "BasicAuth layer options",
+        "type": "object",
+        "properties": {},
+        "additionalProperties": false
+    }
+    ```
+
+4. Puis créer le fichier Go qui embarquera ces données dans notre binaire via le package [`embed`](https://pkg.go.dev/embed):
+
+    ```go
+    // Fichier internal/proxy/director/layer/basicauth/layer_options.go
+
+    package basicauth
+
+    import (
+        _ "embed"
+    )
+
+    //go:embed layer-options.json
+    var RawLayerOptionsSchema []byte
+    ```
+
+5. Enfin, créer le fichier d'amorçage pour référencer notre nouveau layer avec Bouncer:
+
+    ```go
+    // Fichier internal/setup/basicauth_layer.go
+
+    package setup
+
+    import (
+        "forge.cadoles.com/cadoles/bouncer/internal/config"
+        "forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
+        "forge.cadoles.com/cadoles/bouncer/internal/proxy/director/layer/basicauth"
+    )
+
+    // On créait une function d'initialisation qui enregistra les éléments suivants auprès de Bouncer:
+    // - Notre nouveau type de layer
+    // - Une fonction capable de créer une instance de notre layer
+    // - Le schéma associé aux options de notre layer
+    func init() {
+        RegisterLayer(basicauth.LayerType, setupBasicAuthLayer, basicauth.RawLayerOptionsSchema)
+    }
+
+    // La fonction de création de notre layer
+    // reçoit automatiquement la configuration actuelle de Bouncer.
+    
+    // Une layer plus avancé pourrait être configurable de cette manière
+    // en créant une nouvelle section de configuration dédiée.
+    func setupBasicAuthLayer(conf *config.Config) (director.Layer, error) {
+        return &basicauth.BasicAuth{}, nil
+    }
+    ```
+
+## Tester l'intégration de notre nouveau layer
+
+À ce stade, notre nouveau layer est normalement référencé et donc "utilisable" dans Bouncer (si on omet le fait qu'il déclenchera une `panic()`).
+
+1. Vérifier que notre layer est bien référencé en exécutant la commande:
+
+    ```
+    ./bin/bouncer admin layer create --help
+    ```
+
+    La sortie devrait ressembler à:
+
+    ```
+    NAME:
+    bouncer admin layer create - Create layer
+
+    USAGE:
+    bouncer admin layer create [command options] [arguments...]
+
+    OPTIONS:
+    --layer-type LAYER_TYPE        Set LAYER_TYPE as layer's type (available: [basicauth queue])
+    [...]
+    ```
+
+    Comme vous devriez le voir nous pouvons désormais créer des layers de type `basicauth`.
+
+2. Créer un proxy puis une instance de notre nouveau layer associée à celui ci:
+
+    ```bash
+    # Créer un proxy
+    ./bin/bouncer admin proxy create --proxy-name cadoles --proxy-to https://www.cadoles.com
+
+    # Activer celui-ci
+    ./bin/bouncer admin proxy update --proxy-name cadoles --proxy-enabled=true
+
+    # Ajouter un layer de notre nouveau type à notre proxy
+    ./bin/bouncer admin layer create --proxy-name cadoles --layer-name mybasicauth --layer-type basicauth
+
+    # Activer notre nouveau layer
+    ./bin/bouncer admin layer update --proxy-name cadoles --layer-name mybasicauth --layer-enabled=true
+    ```
+
+**Notre layer est actif** ! Cependant il est loin d'être fonctionnel. En effet, si vous faites un:
+
+```
+curl -v http://localhost:8080
+```
+
+Vous n'aurez guère en retour qu'un:
+
+```
+*   Trying 127.0.0.1:8080...
+* Connected to localhost (127.0.0.1) port 8080 (#0)
+> GET / HTTP/1.1
+> Host: localhost:8080
+> User-Agent: curl/8.1.2
+> Accept: */*
+> 
+* Empty reply from server
+* Closing connection 0
+curl: (52) Empty reply from server
+```
+
+Et également dans la console où s'exécute le service `bouncer-proxy`, vous aurez le message:
+
+```
+2023/06/23 18:39:59 http: panic serving 127.0.0.1:59868: unimplemented
+```
+
+**Il est temps d'implémenter réellement la logique associée à notre layer !**
+
+> **Note** Vous pouvez désactiver votre layer via le drapeau `--layer-enabled=false` et voir le site Cadoles s'afficher à nouveau !
+
+## Implémenter l'authentification sur notre nouveau layer
+
+Nous allons modifier la méthode `Middleware(layer *store.Layer) proxy.Middleware` attachée à notre structure `BasicAuth`.
+
+1. Modifier le fichier contenant la structure de notre layer de la manière suivante:
+
+    ```go
+    // Fichier internal/proxy/director/layer/basicauth/basicauth.go
+
+    // [...]
+
+    // Middleware implements director.MiddlewareLayer.
+    func (*BasicAuth) Middleware(layer *store.Layer) proxy.Middleware {
+        // La méthode doit retourner un "Middleware" qui est un alias
+        // pour les fonctions généralement utilisées
+        // dans les librairies http en Go pour créer
+        // une fonction d'interception/transformation de requête.
+        return func(next http.Handler) http.Handler {
+            fn := func(w http.ResponseWriter, r *http.Request) {
+                // On récupère les identifiants "basic auth" transmis (ou non)
+                // avec la requête
+                username, password, ok := r.BasicAuth()
+
+                // On créait une méthode locale pour gérer le cas d'une erreur d'authentification.
+                unauthorized := func() {
+                    // On ajoute cette entête HTTP à la réponse pour déclencher l'affichage
+                    // de la popup d'authentification dans le navigateur web de l'utilisateur.
+                    w.Header().Set("WWW-Authenticate", `Basic realm="restricted", charset="UTF-8"`)
+
+                    // On retoure un code d'erreur HTTP 401 (Unauthorized)
+                    http.Error(w, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
+                }
+
+                if !ok {
+                    // L'entête Authorization est absente ou ne correspondant
+                    // pas à du Basic Auth, on retourne une erreur HTTP 401 et
+                    // on interrompt le traitement de la requête ici
+                    unauthorized()
+
+                    return
+                }
+
+                // On vérifie les identifiants associés à la requête
+                isAuthenticated := authenticate(username, password)
+
+                // Si les identifiants sont non reconnus alors
+                // on interrompt le traitement de la requête
+                if !isAuthenticated {
+                    unauthorized()
+
+                    return
+                }
+
+                // L'authentification a réussie ! On passe la main au handler HTTP suivant
+                next.ServeHTTP(w, r)
+            }
+
+            return http.HandlerFunc(fn)
+        }
+    }
+
+    // La méthode authenticate() prend un couple d'identifiants
+    // est vérifie en temps constant si ceux ci correspondent à un couple
+    // d'identifiants attendus.
+    func authenticate(username, password string) bool {
+        // On génère une empreinte au format sha256 pour nos identifiants
+        usernameHash := sha256.Sum256([]byte(username))
+        passwordHash := sha256.Sum256([]byte(password))
+
+        // On effectue de même avec les identifiants attendus.
+        // Pour l'instant, on utilise un couple d'identifiants en "dur".
+        expectedUsernameHash := sha256.Sum256([]byte("foo"))
+        expectedPasswordHash := sha256.Sum256([]byte("baz"))
+
+        // On utilise la méthode subtle.ConstantTimeCompare()
+        // pour faire la comparaison des identifiants en temps constant
+        // et ainsi éviter les attaques par timing.
+        usernameMatch := (subtle.ConstantTimeCompare(usernameHash[:], expectedUsernameHash[:]) == 1)
+        passwordMatch := (subtle.ConstantTimeCompare(passwordHash[:], expectedPasswordHash[:]) == 1)
+
+        // L'utilisateur est authentifié si son nom et son mot de passe
+        // correspondent avec ceux attendus.
+        return usernameMatch && passwordMatch
+    }
+    ```
+
+2. Dans votre navigateur, essayez d'ouvrir l'URL http://127.0.0.1:8080. La popup d'authentification devrait s'afficher et vous devriez pouvoir utiliser les identifiants définis dans la fonction `authenticate()` pour vous authentifier et accéder au site de Cadoles !
+
+    > **Note** Essayez de désactiver le layer. L'authentification est automatiquement désactivée également !
+
+## Déclarer des options pour pouvoir utiliser des identifiants dynamiques
+
+En l'état actuel notre layer est fonctionnel. Cependant il souffre d'un problème notable: les identifiants attendus sont statiques et embarqués en dur dans le code. Nous allons utiliser le schéma associé à nos options, jusqu'alors vide, pour pouvoir créer une paire d'identifiants attendus dynamique.
+
+
+1. Modifier le schéma JSON des options de notre layer:
+
+    ```json
+    // Fichier internal/proxy/director/layer/basicauth/layer-options.json
+
+    {
+        "$id": "https://forge.cadoles.com/cadoles/bouncer/schemas/basicauth-layer-options",
+        "title": "BasicAuth layer options",
+        "type": "object",
+        "properties": {
+            "username": {
+                "type": "string"
+            },
+            "password": {
+                "type": "string"
+            }
+        },
+        "additionalProperties": false
+    }
+    ```
+
+2. On modifie notre méthode `Middleware()` et la fonction `authenticate()` pour utiliser ces nouvelles options:
+
+    ```go
+    package basicauth
+
+    import (
+        "crypto/sha256"
+        "crypto/subtle"
+        "net/http"
+
+        proxy "forge.cadoles.com/Cadoles/go-proxy"
+        "forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
+        "forge.cadoles.com/cadoles/bouncer/internal/store"
+        "gitlab.com/wpetit/goweb/logger"
+    )
+
+    const LayerType store.LayerType = "basicauth"
+
+    type BasicAuth struct{}
+
+    // LayerType implements director.MiddlewareLayer.
+    func (*BasicAuth) LayerType() store.LayerType {
+        return LayerType
+    }
+
+    // Middleware implements director.MiddlewareLayer.
+    func (*BasicAuth) Middleware(layer *store.Layer) proxy.Middleware {
+        // La méthode doit retourner un "Middleware" qui est un alias
+        // pour les fonctions généralement utilisées
+        // dans les librairies http en Go pour créer
+        // une fonction d'interception/transformation de requête.
+        return func(next http.Handler) http.Handler {
+            fn := func(w http.ResponseWriter, r *http.Request) {
+                // On récupère les identifiants "basic auth" transmis (ou non)
+                // avec la requête
+                username, password, ok := r.BasicAuth()
+
+                // On créait une méthode locale pour gérer le cas d'une erreur d'authentification.
+                unauthorized := func() {
+                    // On ajoute cette entête HTTP à la réponse pour déclencher l'affichage
+                    // de la popup d'authentification dans le navigateur web de l'utilisateur.
+                    w.Header().Set("WWW-Authenticate", `Basic realm="restricted", charset="UTF-8"`)
+
+                    // On retoure un code d'erreur HTTP 401 (Unauthorized)
+                    http.Error(w, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
+                }
+
+                if !ok {
+                    // L'entête Authorization est absente ou ne correspondant
+                    // pas à du Basic Auth, on retourne une erreur HTTP 401 et
+                    // on interrompt le traitement de la requête ici
+                    unauthorized()
+
+                    return
+                }
+
+                // On extrait les identifiants des options associées à notre layer
+                expectedUsername, usernameExists := layer.Options["username"].(string)
+                expectedPassword, passwordExists := layer.Options["password"].(string)
+
+                // Si le nom d'utilisateur ou le mot de passe attendu n'existe pas
+                // alors on retourne une erreur HTTP 500 à l'utilisateur.
+                if !usernameExists || !passwordExists {
+                    logger.Error(r.Context(), "basicauth layer missing password or username option")
+                    http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+
+                    return
+                }
+
+                // On vérifie les identifiants associés à la requête
+                isAuthenticated := authenticate(username, password, expectedUsername, expectedPassword)
+
+                // Si les identifiants sont non reconnus alors
+                // on interrompt le traitement de la requête
+                if !isAuthenticated {
+                    unauthorized()
+
+                    return
+                }
+
+                // L'authentification a réussie ! On passe la main au handler HTTP suivant
+                next.ServeHTTP(w, r)
+            }
+
+            return http.HandlerFunc(fn)
+        }
+    }
+
+    func authenticate(username, password string, expectedUsername, expectedPassword string) bool {
+        // On génère une empreinte au format sha256 pour nos identifiants
+        usernameHash := sha256.Sum256([]byte(username))
+        passwordHash := sha256.Sum256([]byte(password))
+
+        // On effectue de même avec les identifiants attendus.
+        expectedUsernameHash := sha256.Sum256([]byte(expectedUsername))
+        expectedPasswordHash := sha256.Sum256([]byte(expectedPassword))
+
+        // On utilise la méthode subtle.ConstantTimeCompare()
+        // pour faire la comparaison des identifiants en temps constant
+        // et ainsi éviter les attaques par timing.
+        usernameMatch := (subtle.ConstantTimeCompare(usernameHash[:], expectedUsernameHash[:]) == 1)
+        passwordMatch := (subtle.ConstantTimeCompare(passwordHash[:], expectedPasswordHash[:]) == 1)
+
+        // L'utilisateur est authentifié si son nom et son mot de passe
+        // correspondent avec ceux attendus.
+        return usernameMatch && passwordMatch
+    }
+
+    func New() *BasicAuth {
+        return &BasicAuth{}
+    }
+
+    var _ director.MiddlewareLayer = &BasicAuth{}
+    ```
+
+3. Modifiez votre layer via la commande d'administration pour déclarer une paire d'identifiants:
+
+    ```bash
+    ./bin/bouncer admin layer update --proxy-name cadoles --layer-name mybasicauth --layer-options='{"username":"jdoe","password":"notsosecret"}'
+    ```
+
+4. Essayer d'accéder à l'adresse http://127.0.0.1:8080 avec votre navigateur. La popup d'authentification devrait s'afficher et vous devriez pouvoir vous authentifier avec le nouveau couple d'identifiants définis dans les options de votre layer !
+
+> **Note** Vous pouvez modifier les identifiants plusieurs fois via la commande et vérifier que la fenêtre s'affiche toujours à nouveau, demandant les nouveaux identifiants.
--- a/doc/fr/tutorials/getting-started-with-sources.md
+++ b/doc/fr/tutorials/getting-started-with-sources.md
@ -0,0 +1,125 @@
+# Démarrer avec les sources
+
+Dans ce tutoriel, nous verrons comment lancer un environnement de développement en local sur notre machine afin de travailler sur les sources de Bouncer.
+
+## Prérequis
+
+Les éléments suivants doivent être installés sur votre machine:
+
+- [Golang > 1.20](https://go.dev/)
+- [Docker](https://www.docker.com/)
+- [Git](https://git-scm.com/)
+- [GNU Make](https://www.gnu.org/software/make/)
+
+Les ports suivants doivent être disponibles sur votre machine:
+
+- `8080`
+- `8081`
+
+## Étapes
+
+1. Cloner le dépôt des sources du projet Bouncer
+
+    ```
+    git clone https://forge.cadoles.com/Cadoles/bouncer
+    ```
+
+2. Se positionner dans le répertoire du projet
+
+    ```
+    cd bouncer
+    ```
+
+3. Lancer le projet en mode "développement"
+
+    ```
+    make watch
+    ```
+
+Si toutes les dépendances sont correctement installées et configurées sur votre machine, la console devrait afficher une série de messages pour ensuite s'arrêter sur quelque chose ressemblant à:
+
+```
+14:47:06: daemon: make run BOUNCER_CMD="--config config.yml server admin run"
+2023-06-23 20:47:06.095 [INFO]	<./internal/command/server/admin/run.go:42>	RunCommand.func1	listening	{"url": "http://127.0.0.1:8081"}
+2023-06-23 20:47:06.095 [INFO]	<./internal/admin/server.go:126>	(*Server).run	http server listening
+14:47:06: daemon: make run-redis
+bouncer-redis
+docker run --rm -t \
+	--name bouncer-redis \
+	-v /home/wpetit/workspace/bouncer/data/redis:/data \
+	-p 6379:6379 \
+	redis:alpine3.17 \
+	redis-server --save 60 1 --loglevel warning
+1:C 23 Jun 2023 20:47:06.754 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
+1:C 23 Jun 2023 20:47:06.754 # Redis version=7.0.11, bits=64, commit=00000000, modified=0, pid=1, just started
+1:C 23 Jun 2023 20:47:06.754 # Configuration loaded
+1:M 23 Jun 2023 20:47:06.759 # Warning: Could not create server TCP listening socket ::*:6379: unable to bind socket, errno: 97
+1:M 23 Jun 2023 20:47:06.760 # Server initialized
+1:M 23 Jun 2023 20:47:06.760 # WARNING Memory overcommit must be enabled! Without it, a background save or replication may fail under low memory condition. Being disabled, it can can also cause failures without low memory condition, see https://github.com/jemalloc/jemalloc/issues/1328. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect
+```
+
+À ce stade, le serveur `bouncer-admin` écoute sur http://127.0.0.1:8081 et le serveur `bouncer-proxy` sur http://127.0.0.1:8080.
+
+> **Note**
+> 
+> L'outil [`modd`](https://github.com/cortesi/modd) est utilisé pour surveiller les modifications sur les sources et relancer automatiquement la compilation et les services en cas de changement.
+
+## Commandes `make` utiles
+
+### `make watch`
+
+Surveiller les sources, compiler celles ci en cas de modifications et lancer les services `bouncer-proxy` et `bouncer-admin`.
+
+#### `make test`
+
+Exécuter les tests unitaires/d'intégration du projet.
+
+#### `make build`
+
+Compiler une version de développement du binaire `bouncer`.
+
+#### `make docker-build`
+
+Construire une image Docker pour Bouncer.
+
+Vous pouvez ensuite lancer l'image localement avec la commande:
+
+```
+docker run \
+    -it --rm \
+    reg.cadoles.com/cadoles/bouncer:<tag> \
+    -p 8080:8080 \
+    bouncer server proxy run
+```
+
+## Arborescence du projet
+
+```bash
+.
+├── bin             # Répertoire de destination des binaires Go de développement
+├── cmd             # Package principal (main) du binaire Bouncer
+├── data            # Répertoire des données de développement (Redis)
+├── dist            # Répertoire de destination des archives/paquets pour la publication
+├── doc             # Répertoire de documentation du projet
+├── internal        # Source Go du projet
+│   ├── admin
+│   ├── auth
+│   ├── chi
+│   ├── client
+│   ├── command
+│   ├── config
+│   ├── format
+│   ├── imports
+│   ├── jwk
+│   ├── proxy
+│   ├── schema
+│   ├── setup
+│   └── store
+├── layers          # Fichiers annexes liés aux layers (templates HTML)
+│   └── queue
+├── misc            # Fichiers annexes
+│   ├── jenkins     # Fichiers liés au pipeline d'intégration continue Jenkins
+│   ├── logo        # Logo du projet
+│   └── packaging   # Fichiers liés à l'empaquetage des binaires
+└── tools           # Outils utilisés en développement
+```
--- a/doc/resources/deployment_fr.plantuml
+++ b/doc/resources/deployment_fr.plantuml
@ -0,0 +1,37 @@
+@startuml
+skinparam linetype ortho
+skinparam ranksep 150
+skinparam nodesep 50
+top to bottom direction
+
+frame "Exemple de déploiement mono-noeud" as ExampleSimpleNode {
+    
+    actor "Navigateur Web" as WebNavigator
+    
+    node "Serveur Bouncer" as BouncerServer {
+        actor "CLI d'administration" as AdminCLI
+
+        database "Redis" as RedisDatabase
+
+        component "bouncer-proxy" as  BouncerProxyService
+        component "bouncer-admin" as BouncerAdminService
+        
+        folder "/etc/bouncer" as BouncerConfigFolder      
+    }
+
+    node "Serveur distant" as RemoteServer {
+        component "Site Web" as RemoteWebsite
+    }
+
+    WebNavigator --down0)- BouncerProxyService: "TCP/80 (HTTP)"
+    AdminCLI -0)- BouncerAdminService: "TCP/8081 (HTTP)"
+
+    BouncerProxyService -down0)-- RemoteWebsite: "TCP/80 (HTTP)\nTCP/443 (HTTPS)"
+
+    BouncerAdminService .down.> RedisDatabase: reads/writes
+    BouncerProxyService .down.> RedisDatabase: reads
+
+    BouncerAdminService ..> BouncerConfigFolder: uses
+    BouncerProxyService ..> BouncerConfigFolder: uses
+
+@enduml
--- a/doc/resources/deployment_fr.png
+++ b/doc/resources/deployment_fr.png
--- a/go.mod
+++ b/go.mod
@ -21,6 +21,7 @@ require (
 	github.com/Masterminds/semver/v3 v3.2.0 // indirect
 	github.com/Microsoft/go-winio v0.6.0 // indirect
 	github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.1.3 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/containerd/continuity v0.3.0 // indirect
@ -30,18 +31,24 @@ require (
 	github.com/docker/go-connections v0.4.0 // indirect
 	github.com/docker/go-units v0.4.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
 	github.com/huandu/xstrings v1.3.3 // indirect
 	github.com/imdario/mergo v0.3.12 // indirect
-	github.com/kr/pretty v0.3.0 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
 	github.com/mattn/go-runewidth v0.0.13 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/copystructure v1.0.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.0 // indirect
 	github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/opencontainers/runc v1.1.5 // indirect
+	github.com/prometheus/client_golang v1.16.0 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.42.0 // indirect
+	github.com/prometheus/procfs v0.10.1 // indirect
 	github.com/qri-io/jsonpointer v0.1.1 // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/rogpeppe/go-internal v1.10.0 // indirect
@ -52,6 +59,7 @@ require (
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
 	github.com/xeipuuv/gojsonschema v1.2.0 // indirect
 	google.golang.org/genproto v0.0.0-20220314164441-57ef72a4c106 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
@ -88,7 +96,7 @@ require (
 	go.opencensus.io v0.24.0 // indirect
 	golang.org/x/crypto v0.8.0 // indirect
 	golang.org/x/mod v0.9.0 // indirect
-	golang.org/x/sys v0.7.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
 	golang.org/x/term v0.7.0 // indirect
 	golang.org/x/tools v0.7.0 // indirect
 	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
--- a/go.sum
+++ b/go.sum
@ -80,6 +80,8 @@ github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae/go.mod h1:+inYUS
 github.com/alecthomas/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8/go.mod h1:MRgZdU3vrFd05IQ89AxUZ0aYdF39BYoNFa324SodPCA=
 github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bsm/ginkgo/v2 v2.7.0 h1:ItPMPH90RbmZJt5GtkcNvIRuGEdwlBItdNVoyzaNQao=
 github.com/bsm/gomega v1.26.0 h1:LhQm+AFcgV2M0WyKroMASzAzCAJVpAxQXv4SaI9a69Y=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
@ -230,6 +232,8 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
 github.com/golang/protobuf v1.5.1/go.mod h1:DopwsBzvsk0Fs44TXzsVbJyPhcCPeIwnvohx4u74HPM=
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
@ -309,6 +313,7 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
 github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@ -347,6 +352,8 @@ github.com/mattn/go-isatty v0.0.18 h1:DOKFKCQ7FNG2L1rbrmstDN4QVRdS89Nkh85u68Uwp9
 github.com/mattn/go-isatty v0.0.18/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
 github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/matttproud/golang_protobuf_extensions v1.0.4 h1:mmDVorXM7PCGKw94cs5zkfA9PSy5pEvNWRP0ET0TIVo=
+github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
 github.com/mitchellh/copystructure v1.0.0 h1:Laisrj+bAB6b/yJwB5Bt3ITZhGJdqmxquMKeZ+mmkFQ=
 github.com/mitchellh/copystructure v1.0.0/go.mod h1:SNtv71yrdKgLRyLFxmLdkAbkKEFWgYaq1OVrnRcwhnw=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
@ -379,6 +386,7 @@ github.com/opencontainers/selinux v1.10.0/go.mod h1:2i0OySw99QjzBBQByd1Gr9gSjvuh
 github.com/ory/dockertest/v3 v3.10.0 h1:4K3z2VMe8Woe++invjaTB7VRyQXQy5UY+loujO4aNE4=
 github.com/ory/dockertest/v3 v3.10.0/go.mod h1:nr57ZbRWMqfsdGdFNLHz5jjNdDb7VVFnzAeW1n5N1Lg=
 github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c/go.mod h1:X07ZCGwUbLaax7L0S3Tw4hpejzu63ZrrQiUe6W0hcy0=
+github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
@ -386,7 +394,15 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/profile v1.6.0/go.mod h1:qBsxPvzyUincmltOk6iyRVxHYg4adc0OFOv72ZdLa18=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/prometheus/client_golang v1.16.0 h1:yk/hx9hDbrGHovbci4BY+pRMfSuuat626eFsHb7tmT8=
+github.com/prometheus/client_golang v1.16.0/go.mod h1:Zsulrv/L9oM40tJ7T815tM89lFEugiJ9HzIqaAx4LKc=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/prometheus/client_model v0.3.0 h1:UBgGFHqYdG/TPFD1B1ogZywDqEkwp3fBMvqdiQ7Xew4=
+github.com/prometheus/client_model v0.3.0/go.mod h1:LDGWKZIo7rky3hgvBe+caln+Dr3dPggB5dvjtD7w9+w=
+github.com/prometheus/common v0.42.0 h1:EKsfXEYo4JpWMHH5cg+KOUWeuJSov1Id8zGR8eeI1YM=
+github.com/prometheus/common v0.42.0/go.mod h1:xBwqVerjNdUDjgODMpudtOMwlOwf2SaTr1yjz4b7Zbc=
+github.com/prometheus/procfs v0.10.1 h1:kYK1Va/YMlutzCGazswoHKo//tZVlFpKYh+PymziUAg=
+github.com/prometheus/procfs v0.10.1/go.mod h1:nwNm2aOCAYw8uTR/9bWRREkZFxAUcWzPHWJq+XBB/FM=
 github.com/qri-io/jsonpointer v0.1.1 h1:prVZBZLL6TW5vsSB9fFHFAMBLI4b0ri5vribQlTJiBA=
 github.com/qri-io/jsonpointer v0.1.1/go.mod h1:DnJPaYgiKu56EuDp8TU5wFLdZIcAnb/uH9v37ZaMV64=
 github.com/qri-io/jsonschema v0.2.1 h1:NNFoKms+kut6ABPf6xiKNM5214jzxAhDBrPHCJ97Wg0=
@ -398,6 +414,7 @@ github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJ
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
 github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
@ -665,6 +682,8 @@ golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
 golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
@ -891,6 +910,8 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
+google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
--- a/internal/admin/layer_route.go
+++ b/internal/admin/layer_route.go
@ -5,6 +5,7 @@ import (
 	"sort"

 	"forge.cadoles.com/cadoles/bouncer/internal/schema"
+	"forge.cadoles.com/cadoles/bouncer/internal/setup"
 	"forge.cadoles.com/cadoles/bouncer/internal/store"
 	"github.com/go-chi/chi/v5"
 	"github.com/pkg/errors"
@ -155,13 +156,22 @@ func (s *Server) createLayer(w http.ResponseWriter, r *http.Request) {

 	layerName, err := store.ValidateName(createLayerReq.Name)
 	if err != nil {
-		logger.Error(r.Context(), "could not parse 'name' parameter", logger.E(errors.WithStack(err)))
-		api.ErrorResponse(w, http.StatusBadRequest, api.ErrCodeMalformedRequest, nil)
+		logger.Error(r.Context(), "invalid 'name' parameter", logger.E(errors.WithStack(err)))
+		api.ErrorResponse(w, http.StatusBadRequest, api.ErrCodeInvalidRequest, nil)

 		return
 	}

-	layer, err := s.layerRepository.CreateLayer(ctx, proxyName, store.LayerName(layerName), store.LayerType(createLayerReq.Type), createLayerReq.Options)
+	layerType := store.LayerType(createLayerReq.Type)
+
+	if !setup.LayerTypeExists(layerType) {
+		logger.Error(r.Context(), "unknown layer type", logger.E(errors.WithStack(err)), logger.F("layerType", layerType))
+		api.ErrorResponse(w, http.StatusBadRequest, api.ErrCodeInvalidRequest, nil)
+
+		return
+	}
+
+	layer, err := s.layerRepository.CreateLayer(ctx, proxyName, store.LayerName(layerName), layerType, createLayerReq.Options)
 	if err != nil {
 		if errors.Is(err, store.ErrAlreadyExist) {
 			api.ErrorResponse(w, http.StatusConflict, ErrCodeAlreadyExist, nil)
@ -235,7 +245,19 @@ func (s *Server) updateLayer(w http.ResponseWriter, r *http.Request) {
 	}

 	if updateLayerReq.Options != nil {
-		if err := schema.ValidateLayerOptions(ctx, layer.Type, updateLayerReq.Options); err != nil {
+		layerOptionsSchema, err := setup.GetLayerOptionsSchema(layer.Type)
+		if err != nil {
+			logger.Error(r.Context(), "could not retrieve layer options schema", logger.E(errors.WithStack(err)))
+			api.ErrorResponse(w, http.StatusInternalServerError, api.ErrCodeUnknownError, nil)
+
+			return
+		}
+
+		rawOptions := func(opts *store.LayerOptions) map[string]any {
+			return *opts
+		}(updateLayerReq.Options)
+
+		if err := schema.Validate(ctx, layerOptionsSchema, rawOptions); err != nil {
 			logger.Error(r.Context(), "could not validate layer options", logger.E(errors.WithStack(err)))

 			var invalidDataErr *schema.InvalidDataError
--- a/internal/admin/server.go
+++ b/internal/admin/server.go
@ -16,6 +16,7 @@ import (
 	"github.com/go-chi/chi/v5/middleware"
 	"github.com/go-chi/cors"
 	"github.com/pkg/errors"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"gitlab.com/wpetit/goweb/logger"
 )

@ -101,6 +102,25 @@ func (s *Server) run(parentCtx context.Context, addrs chan net.Addr, errs chan e

 	router.Use(corsMiddleware.Handler)

+	if s.serverConfig.Metrics.Enabled {
+		metrics := s.serverConfig.Metrics
+
+		logger.Info(ctx, "enabling metrics", logger.F("endpoint", metrics.Endpoint))
+
+		router.Group(func(r chi.Router) {
+			if metrics.BasicAuth != nil {
+				logger.Info(ctx, "enabling authentication on metrics endpoint")
+
+				r.Use(middleware.BasicAuth(
+					"metrics",
+					metrics.BasicAuth.CredentialsMap(),
+				))
+			}
+
+			r.Handle(string(metrics.Endpoint), promhttp.Handler())
+		})
+	}
+
 	router.Route("/api/v1", func(r chi.Router) {
 		r.Group(func(r chi.Router) {
 			r.Use(auth.Middleware(
--- a/internal/command/admin/layer/flag/flag.go
+++ b/internal/command/admin/layer/flag/flag.go
@ -2,27 +2,22 @@ package flag

 import (
 	"encoding/json"
+	"fmt"

 	proxyFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/proxy/flag"
+	"forge.cadoles.com/cadoles/bouncer/internal/setup"
 	"forge.cadoles.com/cadoles/bouncer/internal/store"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli/v2"
 )

 const (
-	FlagLayerName    = "layer-name"
-	FlagLayerType    = "layer-type"
-	FlagLayerOptions = "layer-options"
+	FlagKeyLayerType = "layer-type"
 )

 func WithLayerFlags(flags ...cli.Flag) []cli.Flag {
 	baseFlags := proxyFlag.WithProxyFlags(
-		&cli.StringFlag{
-			Name:     FlagLayerName,
-			Usage:    "use `LAYER_NAME` as targeted layer",
-			Value:    "",
-			Required: true,
-		},
+		LayerName(),
 	)

 	flags = append(flags, baseFlags...)
@ -32,22 +27,63 @@ func WithLayerFlags(flags ...cli.Flag) []cli.Flag {

 func WithLayerCreateFlags(flags ...cli.Flag) []cli.Flag {
 	return WithLayerFlags(
-		&cli.StringFlag{
-			Name:     FlagLayerType,
-			Usage:    "Set `LAYER_TYPE` as layer's type",
-			Value:    "",
-			Required: true,
-		},
-		&cli.StringFlag{
-			Name:  FlagLayerOptions,
-			Usage: "Set `LAYER_OPTIONS` as layer's options",
-			Value: "{}",
-		},
+		LayerType(),
+		LayerOptions(),
 	)
 }

+const KeyLayerName = "layer-name"
+
+func LayerName() cli.Flag {
+	return &cli.StringFlag{
+		Name:     KeyLayerName,
+		Usage:    "use `LAYER_NAME` as targeted layer",
+		Value:    "",
+		Required: true,
+	}
+}
+
+const KeyLayerType = "layer-type"
+
+func LayerType() cli.Flag {
+	return &cli.StringFlag{
+		Name:     KeyLayerType,
+		Usage:    fmt.Sprintf("Set `LAYER_TYPE` as layer's type (available: %v)", setup.GetLayerTypes()),
+		Value:    "",
+		Required: true,
+	}
+}
+
+const KeyLayerOptions = "layer-options"
+
+func LayerOptions() cli.Flag {
+	return &cli.StringFlag{
+		Name:  KeyLayerOptions,
+		Usage: "Set `LAYER_OPTIONS` as layer's options",
+		Value: "{}",
+	}
+}
+
+const KeyLayerWeight = "layer-weight"
+
+func LayerWeight() cli.Flag {
+	return &cli.IntFlag{
+		Name:  KeyLayerWeight,
+		Usage: "Set `LAYER_WEIGHT` as layer's weight",
+	}
+}
+
+const KeyLayerEnabled = "layer-enabled"
+
+func LayerEnabled() cli.Flag {
+	return &cli.BoolFlag{
+		Name:  KeyLayerEnabled,
+		Usage: "Enable or disable layer",
+	}
+}
+
 func AssertLayerName(ctx *cli.Context) (store.LayerName, error) {
-	rawLayerName := ctx.String(FlagLayerName)
+	rawLayerName := ctx.String(KeyLayerName)

 	name, err := store.ValidateName(rawLayerName)
 	if err != nil {
@ -58,13 +94,18 @@ func AssertLayerName(ctx *cli.Context) (store.LayerName, error) {
 }

 func AssertLayerType(ctx *cli.Context) (store.LayerType, error) {
-	rawLayerType := ctx.String(FlagLayerType)
+	rawLayerType := ctx.String(FlagKeyLayerType)

-	return store.LayerType(rawLayerType), nil
+	layerType := store.LayerType(rawLayerType)
+	if !setup.LayerTypeExists(layerType) {
+		return "", errors.Errorf("unknown layer type '%s'", layerType)
+	}
+
+	return layerType, nil
 }

 func AssertLayerOptions(ctx *cli.Context) (store.LayerOptions, error) {
-	rawLayerOptions := ctx.String(FlagLayerOptions)
+	rawLayerOptions := ctx.String(KeyLayerOptions)

 	layerOptions := store.LayerOptions{}

--- a/internal/command/admin/layer/update.go
+++ b/internal/command/admin/layer/update.go
@ -7,6 +7,7 @@ import (
 	"forge.cadoles.com/cadoles/bouncer/internal/client"
 	"forge.cadoles.com/cadoles/bouncer/internal/command/admin/apierr"
 	clientFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/flag"
+	"forge.cadoles.com/cadoles/bouncer/internal/command/admin/layer/flag"
 	layerFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/layer/flag"
 	proxyFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/proxy/flag"
 	"forge.cadoles.com/cadoles/bouncer/internal/format"
@ -20,18 +21,9 @@ func UpdateCommand() *cli.Command {
 		Name:  "update",
 		Usage: "Update layer",
 		Flags: layerFlag.WithLayerFlags(
-			&cli.BoolFlag{
-				Name:  "enabled",
-				Usage: "Enable or disable proxy",
-			},
-			&cli.IntFlag{
-				Name:  "weight",
-				Usage: "Set `WEIGHT` as proxy's weight",
-			},
-			&cli.StringFlag{
-				Name:  "options",
-				Usage: "Set `OPTIONS` as proxy's options",
-			},
+			flag.LayerEnabled(),
+			flag.LayerWeight(),
+			flag.LayerOptions(),
 		),
 		Action: func(ctx *cli.Context) error {
 			baseFlags := clientFlag.GetBaseFlags(ctx)
@ -53,22 +45,22 @@ func UpdateCommand() *cli.Command {

 			opts := &client.UpdateLayerOptions{}

-			if ctx.IsSet("options") {
+			if ctx.IsSet(flag.KeyLayerOptions) {
 				var options store.LayerOptions
-				if err := json.Unmarshal([]byte(ctx.String("options")), &options); err != nil {
-					return errors.Wrap(err, "could not parse options")
+				if err := json.Unmarshal([]byte(ctx.String(flag.KeyLayerOptions)), &options); err != nil {
+					return errors.Wrap(err, "could not parse layer's options")
 				}

 				opts.Options = &options
 			}

-			if ctx.IsSet("weight") {
-				weight := ctx.Int("weight")
+			if ctx.IsSet(flag.KeyLayerWeight) {
+				weight := ctx.Int(flag.KeyLayerWeight)
 				opts.Weight = &weight
 			}

-			if ctx.IsSet("enabled") {
-				enabled := ctx.Bool("enabled")
+			if ctx.IsSet(flag.KeyLayerEnabled) {
+				enabled := ctx.Bool(flag.KeyLayerEnabled)
 				opts.Enabled = &enabled
 			}

--- a/internal/command/admin/proxy/create.go
+++ b/internal/command/admin/proxy/create.go
@ -7,6 +7,7 @@ import (
 	"forge.cadoles.com/cadoles/bouncer/internal/client"
 	"forge.cadoles.com/cadoles/bouncer/internal/command/admin/apierr"
 	clientFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/flag"
+	"forge.cadoles.com/cadoles/bouncer/internal/command/admin/proxy/flag"
 	proxyFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/proxy/flag"
 	"forge.cadoles.com/cadoles/bouncer/internal/format"
 	"github.com/pkg/errors"
@ -18,17 +19,8 @@ func CreateCommand() *cli.Command {
 		Name:  "create",
 		Usage: "Create proxy",
 		Flags: proxyFlag.WithProxyFlags(
-			&cli.StringFlag{
-				Name:     "to",
-				Usage:    "Set `TO` as proxy's destination url",
-				Value:    "",
-				Required: true,
-			},
-			&cli.StringSliceFlag{
-				Name:  "from",
-				Usage: "Set `FROM` as proxy's patterns to match incoming requests",
-				Value: cli.NewStringSlice("*"),
-			},
+			flag.ProxyTo(true),
+			flag.ProxyFrom(),
 		),
 		Action: func(ctx *cli.Context) error {
 			baseFlags := clientFlag.GetBaseFlags(ctx)
@ -43,12 +35,12 @@ func CreateCommand() *cli.Command {
 				return errors.Wrap(err, "'to' parameter should be a valid url")
 			}

-			to, err := url.Parse(ctx.String("to"))
+			to, err := url.Parse(ctx.String(flag.KeyProxyTo))
 			if err != nil {
 				return errors.Wrap(err, "'to' parameter should be a valid url")
 			}

-			from := ctx.StringSlice("from")
+			from := ctx.StringSlice(flag.KeyProxyFrom)

 			client := client.New(baseFlags.ServerURL, client.WithToken(token))

--- a/internal/command/admin/proxy/flag/flag.go
+++ b/internal/command/admin/proxy/flag/flag.go
@ -7,16 +7,9 @@ import (
 	"github.com/urfave/cli/v2"
 )

-const FlagProxyName = "proxy-name"
-
 func WithProxyFlags(flags ...cli.Flag) []cli.Flag {
 	baseFlags := clientFlag.ComposeFlags(
-		&cli.StringFlag{
-			Name:     FlagProxyName,
-			Usage:    "use `PROXY_NAME` as targeted proxy",
-			Value:    "",
-			Required: true,
-		},
+		ProxyName(),
 	)

 	flags = append(flags, baseFlags...)
@ -24,8 +17,58 @@ func WithProxyFlags(flags ...cli.Flag) []cli.Flag {
 	return flags
 }

+const KeyProxyName = "proxy-name"
+
+func ProxyName() cli.Flag {
+	return &cli.StringFlag{
+		Name:     KeyProxyName,
+		Usage:    "use `PROXY_NAME` as targeted proxy",
+		Value:    "",
+		Required: true,
+	}
+}
+
+const KeyProxyTo = "proxy-to"
+
+func ProxyTo(required bool) cli.Flag {
+	return &cli.StringFlag{
+		Name:     KeyProxyTo,
+		Usage:    "Set `PROXY_TO` as proxy's destination url",
+		Value:    "",
+		Required: required,
+	}
+}
+
+const KeyProxyFrom = "proxy-from"
+
+func ProxyFrom() cli.Flag {
+	return &cli.StringSliceFlag{
+		Name:  KeyProxyFrom,
+		Usage: "Set `PROXY_FROM` as proxy's patterns to match incoming requests",
+		Value: cli.NewStringSlice("*"),
+	}
+}
+
+const KeyProxyWeight = "proxy-weight"
+
+func ProxyWeight() cli.Flag {
+	return &cli.IntFlag{
+		Name:  KeyProxyWeight,
+		Usage: "Set `PROXY_WEIGHT` as proxy's weight",
+	}
+}
+
+const KeyProxyEnabled = "proxy-enabled"
+
+func ProxyEnabled() cli.Flag {
+	return &cli.BoolFlag{
+		Name:  KeyProxyEnabled,
+		Usage: "Enable or disable proxy",
+	}
+}
+
 func AssertProxyName(ctx *cli.Context) (store.ProxyName, error) {
-	rawProxyName := ctx.String(FlagProxyName)
+	rawProxyName := ctx.String(KeyProxyName)

 	name, err := store.ValidateName(rawProxyName)
 	if err != nil {
--- a/internal/command/admin/proxy/update.go
+++ b/internal/command/admin/proxy/update.go
@ -7,6 +7,7 @@ import (
 	"forge.cadoles.com/cadoles/bouncer/internal/client"
 	"forge.cadoles.com/cadoles/bouncer/internal/command/admin/apierr"
 	clientFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/flag"
+	"forge.cadoles.com/cadoles/bouncer/internal/command/admin/proxy/flag"
 	proxyFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/proxy/flag"
 	"forge.cadoles.com/cadoles/bouncer/internal/format"
 	"github.com/pkg/errors"
@ -18,22 +19,10 @@ func UpdateCommand() *cli.Command {
 		Name:  "update",
 		Usage: "Update proxy",
 		Flags: proxyFlag.WithProxyFlags(
-			&cli.StringFlag{
-				Name:  "to",
-				Usage: "Set `TO` as proxy's destination url",
-			},
-			&cli.StringSliceFlag{
-				Name:  "from",
-				Usage: "Set `FROM` as proxy's patterns to match incoming requests",
-			},
-			&cli.BoolFlag{
-				Name:  "enabled",
-				Usage: "Enable or disable proxy",
-			},
-			&cli.IntFlag{
-				Name:  "weight",
-				Usage: "Set `WEIGHT` as proxy's weight",
-			},
+			flag.ProxyTo(false),
+			flag.ProxyFrom(),
+			flag.ProxyEnabled(),
+			flag.ProxyWeight(),
 		),
 		Action: func(ctx *cli.Context) error {
 			baseFlags := clientFlag.GetBaseFlags(ctx)
@ -50,27 +39,29 @@ func UpdateCommand() *cli.Command {

 			opts := &client.UpdateProxyOptions{}

-			if ctx.IsSet("to") {
-				to := ctx.String("to")
+			if ctx.IsSet(flag.KeyProxyTo) {
+				to := ctx.String(flag.KeyProxyTo)
 				if _, err := url.Parse(to); err != nil {
-					return errors.Wrap(err, "'to' parameter should be a valid url")
+					return errors.Wrapf(err, "'%s' parameter should be a valid url", flag.KeyProxyTo)
 				}

 				opts.To = &to
 			}

-			from := ctx.StringSlice("from")
-			if from != nil {
-				opts.From = from
+			if ctx.IsSet(flag.KeyProxyFrom) {
+				from := ctx.StringSlice(flag.KeyProxyFrom)
+				if from != nil {
+					opts.From = from
+				}
 			}

-			if ctx.IsSet("weight") {
-				weight := ctx.Int("weight")
+			if ctx.IsSet(flag.KeyProxyWeight) {
+				weight := ctx.Int(flag.KeyProxyWeight)
 				opts.Weight = &weight
 			}

-			if ctx.IsSet("enabled") {
-				enabled := ctx.Bool("enabled")
+			if ctx.IsSet(flag.KeyProxyEnabled) {
+				enabled := ctx.Bool(flag.KeyProxyEnabled)
 				opts.Enabled = &enabled
 			}

--- a/internal/command/config/dump.go
+++ b/internal/command/config/dump.go
@ -18,6 +18,8 @@ func Dump() *cli.Command {
 		Usage: "Dump the current configuration",
 		Flags: flags,
 		Action: func(ctx *cli.Context) error {
+			logger.SetLevel(logger.LevelError)
+
 			conf, err := common.LoadConfig(ctx)
 			if err != nil {
 				return errors.Wrap(err, "Could not load configuration")
--- a/internal/command/main.go
+++ b/internal/command/main.go
@ -50,9 +50,10 @@ func Main(buildDate, projectVersion, gitRef, defaultConfigPath string, commands
 		},
 		Flags: []cli.Flag{
 			&cli.StringFlag{
-				Name:  "workdir",
-				Value: "",
-				Usage: "The working directory",
+				Name:    "workdir",
+				Value:   "",
+				EnvVars: []string{"BOUNCER_WORKDIR"},
+				Usage:   "The working directory",
 			},
 			&cli.StringFlag{
 				Name:   "projectVersion",
--- a/internal/command/server/proxy/run.go
+++ b/internal/command/server/proxy/run.go
@ -1,16 +1,11 @@
 package proxy

 import (
-	"context"
 	"fmt"
 	"strings"
-	"time"

 	"forge.cadoles.com/cadoles/bouncer/internal/command/common"
-	"forge.cadoles.com/cadoles/bouncer/internal/config"
 	"forge.cadoles.com/cadoles/bouncer/internal/proxy"
-	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
-	"forge.cadoles.com/cadoles/bouncer/internal/queue"
 	"forge.cadoles.com/cadoles/bouncer/internal/setup"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli/v2"
@ -33,7 +28,7 @@ func RunCommand() *cli.Command {
 			logger.SetFormat(logger.Format(conf.Logger.Format))
 			logger.SetLevel(logger.Level(conf.Logger.Level))

-			layers, err := initDirectorLayers(ctx.Context, conf)
+			layers, err := setup.GetLayers(ctx.Context, conf)
 			if err != nil {
 				return errors.Wrap(err, "could not initialize director layers")
 			}
@ -64,36 +59,3 @@ func RunCommand() *cli.Command {
 		},
 	}
 }
-
-func initDirectorLayers(ctx context.Context, conf *config.Config) ([]director.Layer, error) {
-	layers := make([]director.Layer, 0)
-
-	queue, err := initQueueLayer(ctx, conf)
-	if err != nil {
-		return nil, errors.Wrap(err, "could not initialize queue layer")
-	}
-
-	layers = append(layers, queue)
-
-	return layers, nil
-}
-
-func initQueueLayer(ctx context.Context, conf *config.Config) (*queue.Queue, error) {
-	adapter, err := setup.NewQueueAdapter(ctx, conf.Redis)
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-
-	options := []queue.OptionFunc{
-		queue.WithTemplateDir(string(conf.Layers.Queue.TemplateDir)),
-	}
-
-	if conf.Layers.Queue.DefaultKeepAlive != nil {
-		options = append(options, queue.WithDefaultKeepAlive(time.Duration(*conf.Layers.Queue.DefaultKeepAlive)))
-	}
-
-	return queue.New(
-		adapter,
-		options...,
-	), nil
-}
--- a/internal/config/admin_server.go
+++ b/internal/config/admin_server.go
@ -1,16 +1,18 @@
 package config

 type AdminServerConfig struct {
-	HTTP HTTPConfig `yaml:"http"`
-	CORS CORSConfig `yaml:"cors"`
-	Auth AuthConfig `yaml:"auth"`
+	HTTP    HTTPConfig    `yaml:"http"`
+	CORS    CORSConfig    `yaml:"cors"`
+	Auth    AuthConfig    `yaml:"auth"`
+	Metrics MetricsConfig `yaml:"metrics"`
 }

 func NewDefaultAdminServerConfig() AdminServerConfig {
 	return AdminServerConfig{
-		HTTP: NewHTTPConfig("127.0.0.1", 8081),
-		CORS: NewDefaultCORSConfig(),
-		Auth: NewDefaultAuthConfig(),
+		HTTP:    NewHTTPConfig("127.0.0.1", 8081),
+		CORS:    NewDefaultCORSConfig(),
+		Auth:    NewDefaultAuthConfig(),
+		Metrics: NewDefaultMetricsConfig(),
 	}
 }

--- a/internal/config/logger.go
+++ b/internal/config/logger.go
@ -9,7 +9,7 @@ type LoggerConfig struct {

 func NewDefaultLoggerConfig() LoggerConfig {
 	return LoggerConfig{
-		Level:  InterpolatedInt(logger.LevelInfo),
+		Level:  InterpolatedInt(logger.LevelError),
 		Format: InterpolatedString(logger.FormatHuman),
 	}
 }
--- a/internal/config/metrics.go
+++ b/internal/config/metrics.go
@ -0,0 +1,35 @@
+package config
+
+import "fmt"
+
+type MetricsConfig struct {
+	Enabled   InterpolatedBool   `yaml:"enabled"`
+	Endpoint  InterpolatedString `yaml:"endpoint"`
+	BasicAuth *BasicAuthConfig   `yaml:"basicAuth"`
+}
+
+type BasicAuthConfig struct {
+	Credentials *InterpolatedMap `yaml:"credentials"`
+}
+
+func (c *BasicAuthConfig) CredentialsMap() map[string]string {
+	if c.Credentials == nil {
+		return map[string]string{}
+	}
+
+	credentials := make(map[string]string, len(*c.Credentials))
+
+	for k, v := range *c.Credentials {
+		credentials[k] = fmt.Sprintf("%v", v)
+	}
+
+	return credentials
+}
+
+func NewDefaultMetricsConfig() MetricsConfig {
+	return MetricsConfig{
+		Enabled:   true,
+		Endpoint:  "/.bouncer/metrics",
+		BasicAuth: nil,
+	}
+}
--- a/internal/config/proxy_server.go
+++ b/internal/config/proxy_server.go
@ -1,11 +1,13 @@
 package config

 type ProxyServerConfig struct {
-	HTTP HTTPConfig `yaml:"http"`
+	HTTP    HTTPConfig    `yaml:"http"`
+	Metrics MetricsConfig `yaml:"metrics"`
 }

 func NewDefaultProxyServerConfig() ProxyServerConfig {
 	return ProxyServerConfig{
-		HTTP: NewHTTPConfig("0.0.0.0", 8080),
+		HTTP:    NewHTTPConfig("0.0.0.0", 8080),
+		Metrics: NewDefaultMetricsConfig(),
 	}
 }
--- a/internal/proxy/director/director.go
+++ b/internal/proxy/director/director.go
@ -10,6 +10,7 @@ import (
 	"forge.cadoles.com/Cadoles/go-proxy/wildcard"
 	"forge.cadoles.com/cadoles/bouncer/internal/store"
 	"github.com/pkg/errors"
+	"github.com/prometheus/client_golang/prometheus"
 	"gitlab.com/wpetit/goweb/logger"
 )

@ -59,6 +60,8 @@ MAIN:
 		logger.F("remoteAddr", r.RemoteAddr),
 	)

+	metricProxyRequestsTotal.With(prometheus.Labels{metricLabelProxy: string(match.Name)}).Add(1)
+
 	ctx = withProxy(ctx, match)

 	layers, err := d.getLayers(ctx, match.Name)
--- a/internal/proxy/director/layer/queue/adapter.go
+++ b/internal/proxy/director/layer/queue/adapter.go
--- a/internal/proxy/director/layer/queue/debouncer.go
+++ b/internal/proxy/director/layer/queue/debouncer.go
@ -0,0 +1,73 @@
+package queue
+
+import (
+	"sync"
+	"time"
+
+	"github.com/pkg/errors"
+)
+
+type DebouncerMap struct {
+	debouncers sync.Map
+}
+
+func NewDebouncerMap() *DebouncerMap {
+	return &DebouncerMap{
+		debouncers: sync.Map{},
+	}
+}
+
+func (m *DebouncerMap) Do(key string, after time.Duration, fn func()) {
+	newDebouncer := NewDebouncer(after)
+	rawDebouncer, loaded := m.debouncers.LoadOrStore(key, newDebouncer)
+
+	debouncer, ok := rawDebouncer.(*Debouncer)
+	if !ok {
+		panic(errors.Errorf("unexpected debouncer value, expected '%T', got '%T'", newDebouncer, rawDebouncer))
+	}
+
+	if loaded {
+		debouncer.Update(after)
+	}
+
+	debouncer.Do(fn)
+}
+
+func NewDebouncer(after time.Duration) *Debouncer {
+	return &Debouncer{after: after}
+}
+
+type Debouncer struct {
+	mu    sync.Mutex
+	after time.Duration
+	timer *time.Timer
+	fn    func()
+}
+
+func (d *Debouncer) Do(fn func()) {
+	d.mu.Lock()
+	defer d.mu.Unlock()
+
+	if d.timer != nil {
+		d.timer.Stop()
+	}
+
+	d.fn = fn
+	d.timer = time.AfterFunc(d.after, d.fn)
+}
+
+func (d *Debouncer) Update(after time.Duration) {
+	d.mu.Lock()
+	defer d.mu.Unlock()
+
+	if after == d.after {
+		return
+	}
+
+	if d.timer != nil {
+		d.timer.Stop()
+	}
+
+	d.after = after
+	d.timer = time.AfterFunc(d.after, d.fn)
+}
--- a/internal/proxy/director/layer/queue/layer_options.go
+++ b/internal/proxy/director/layer/queue/layer_options.go
--- a/internal/proxy/director/layer/queue/metrics.go
+++ b/internal/proxy/director/layer/queue/metrics.go
@ -0,0 +1,31 @@
+package queue
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+const (
+	metricNamespace  = "bouncer_layer_queue"
+	metricLabelProxy = "proxy"
+	metricLabelLayer = "layer"
+)
+
+var (
+	metricQueueSessions = promauto.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Name:      "sessions",
+			Help:      "Bouncer's queue layer current sessions",
+			Namespace: metricNamespace,
+		},
+		[]string{metricLabelProxy, metricLabelLayer},
+	)
+	metricQueueCapacity = promauto.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Name:      "capacity",
+			Help:      "Bouncer's queue layer capacity",
+			Namespace: metricNamespace,
+		},
+		[]string{metricLabelProxy, metricLabelLayer},
+	)
+)
--- a/internal/proxy/director/layer/queue/options.go
+++ b/internal/proxy/director/layer/queue/options.go
--- a/internal/proxy/director/layer/queue/queue.go
+++ b/internal/proxy/director/layer/queue/queue.go
@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"html/template"
+	"math/rand"
 	"net/http"
 	"path/filepath"
 	"sync"
@ -16,6 +17,7 @@ import (
 	"github.com/Masterminds/sprig/v3"
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
+	"github.com/prometheus/client_golang/prometheus"
 	"gitlab.com/wpetit/goweb/logger"
 )

@ -30,7 +32,9 @@ type Queue struct {
 	loadOnce    sync.Once
 	tmpl        *template.Template

-	refreshJobRunning uint32
+	refreshJobRunning       uint32
+	updateMetricsJobRunning uint32
+	postKeepAliveDebouncer  *DebouncerMap
 }

 // LayerType implements director.MiddlewareLayer
@ -52,6 +56,8 @@ func (q *Queue) Middleware(layer *store.Layer) proxy.Middleware {
 				return
 			}

+			defer q.updateMetrics(ctx, layer.Proxy, layer.Name, options)
+
 			cookieName := q.getCookieName(layer.Name)

 			cookie, err := r.Cookie(cookieName)
@ -72,8 +78,6 @@ func (q *Queue) Middleware(layer *store.Layer) proxy.Middleware {
 			sessionID := cookie.Value
 			queueName := string(layer.Name)

-			q.refreshQueue(queueName, options.KeepAlive)
-
 			rank, err := q.adapter.Touch(ctx, queueName, sessionID)
 			if err != nil {
 				logger.Error(ctx, "could not retrieve session rank", logger.E(errors.WithStack(err)))
@ -102,6 +106,30 @@ func (q *Queue) Middleware(layer *store.Layer) proxy.Middleware {
 	}
 }

+func (q *Queue) updateSessionsMetric(ctx context.Context, proxyName store.ProxyName, layerName store.LayerName) {
+	if !atomic.CompareAndSwapUint32(&q.updateMetricsJobRunning, 0, 1) {
+		return
+	}
+
+	defer atomic.StoreUint32(&q.updateMetricsJobRunning, 0)
+
+	queueName := string(layerName)
+
+	status, err := q.adapter.Status(ctx, queueName)
+	if err != nil {
+		logger.Error(ctx, "could not retrieve queue status", logger.E(errors.WithStack(err)))
+
+		return
+	}
+
+	metricQueueSessions.With(
+		prometheus.Labels{
+			metricLabelLayer: string(layerName),
+			metricLabelProxy: string(proxyName),
+		},
+	).Set(float64(status.Sessions))
+}
+
 func (q *Queue) renderQueuePage(w http.ResponseWriter, r *http.Request, queueName string, options *LayerOptions, rank int64) {
 	ctx := r.Context()

@ -135,20 +163,22 @@ func (q *Queue) renderQueuePage(w http.ResponseWriter, r *http.Request, queueNam
 		return
 	}

+	refreshRate := time.Duration(int64(options.KeepAlive.Seconds()/2)) * time.Second
+
 	templateData := struct {
 		QueueName       string
 		LayerOptions    *LayerOptions
 		Rank            int64
 		CurrentSessions int64
 		MaxSessions     int64
-		RefreshRate     int64
+		RefreshRate     time.Duration
 	}{
 		QueueName:       queueName,
 		LayerOptions:    options,
 		Rank:            rank + 1,
 		CurrentSessions: status.Sessions,
 		MaxSessions:     options.Capacity,
-		RefreshRate:     5,
+		RefreshRate:     refreshRate,
 	}

 	w.WriteHeader(http.StatusServiceUnavailable)
@ -161,24 +191,55 @@ func (q *Queue) renderQueuePage(w http.ResponseWriter, r *http.Request, queueNam
 	}
 }

-func (q *Queue) refreshQueue(queueName string, keepAlive time.Duration) {
+func (q *Queue) refreshQueue(ctx context.Context, layerName store.LayerName, keepAlive time.Duration) {
 	if !atomic.CompareAndSwapUint32(&q.refreshJobRunning, 0, 1) {
 		return
 	}

-	go func() {
-		defer atomic.StoreUint32(&q.refreshJobRunning, 0)
+	defer atomic.StoreUint32(&q.refreshJobRunning, 0)

-		ctx, cancel := context.WithTimeout(context.Background(), keepAlive*2)
-		defer cancel()
+	if err := q.adapter.Refresh(ctx, string(layerName), keepAlive); err != nil {
+		logger.Error(ctx, "could not refresh queue",
+			logger.E(errors.WithStack(err)),
+			logger.F("queue", layerName),
+		)
+	}
+}

-		if err := q.adapter.Refresh(ctx, queueName, keepAlive); err != nil {
-			logger.Error(ctx, "could not refresh queue",
-				logger.E(errors.WithStack(err)),
-				logger.F("queue", queueName),
-			)
-		}
-	}()
+func (q *Queue) updateMetrics(ctx context.Context, proxyName store.ProxyName, layerName store.LayerName, options *LayerOptions) {
+	// Update queue capacity metric
+	metricQueueCapacity.With(
+		prometheus.Labels{
+			metricLabelLayer: string(layerName),
+			metricLabelProxy: string(proxyName),
+		},
+	).Set(float64(options.Capacity))
+
+	// Refresh queue data and metrics
+	q.refreshQueue(ctx, layerName, options.KeepAlive)
+	q.updateSessionsMetric(ctx, proxyName, layerName)
+
+	// (Re)schedule an update job after session ttl + semi-random time padding
+	// to update metrics after last session expiration
+	randDuration := rand.Int63n(int64(options.KeepAlive))
+	timePadding := options.KeepAlive/2 + time.Duration(randDuration)
+	after := options.KeepAlive + timePadding
+
+	debouncingKey := fmt.Sprintf("%s/%s", proxyName, layerName)
+
+	q.postKeepAliveDebouncer.Do(debouncingKey, after, func() {
+		ctx := logger.With(
+			context.Background(),
+			logger.F("proxy", proxyName),
+			logger.F("layer", layerName),
+			logger.F("after", after),
+		)
+
+		logger.Info(ctx, "running post keep alive refresh job")
+
+		q.refreshQueue(ctx, layerName, options.KeepAlive)
+		q.updateSessionsMetric(ctx, proxyName, layerName)
+	})
 }

 func (q *Queue) getCookieName(layerName store.LayerName) string {
@ -192,9 +253,10 @@ func New(adapter Adapter, funcs ...OptionFunc) *Queue {
 	}

 	return &Queue{
-		adapter:          adapter,
-		templateDir:      opts.TemplateDir,
-		defaultKeepAlive: opts.DefaultKeepAlive,
+		adapter:                adapter,
+		templateDir:            opts.TemplateDir,
+		defaultKeepAlive:       opts.DefaultKeepAlive,
+		postKeepAliveDebouncer: NewDebouncerMap(),
 	}
 }

--- a/internal/proxy/director/layer/queue/redis/adapter.go
+++ b/internal/proxy/director/layer/queue/redis/adapter.go
@ -6,7 +6,7 @@ import (
 	"strings"
 	"time"

-	"forge.cadoles.com/cadoles/bouncer/internal/queue"
+	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director/layer/queue"
 	"github.com/pkg/errors"
 	"github.com/redis/go-redis/v9"
 )
--- a/internal/proxy/director/layer/queue/schema.go
+++ b/internal/proxy/director/layer/queue/schema.go
@ -0,0 +1,8 @@
+package queue
+
+import (
+	_ "embed"
+)
+
+//go:embed schema/layer-options.json
+var RawLayerOptionsSchema []byte
--- a/internal/proxy/director/layer/queue/schema/layer-options.json
+++ b/internal/proxy/director/layer/queue/schema/layer-options.json
@ -7,12 +7,6 @@
            "type": "number",
            "minimum": 0
        },
-        "matchers": {
-            "type": "array",
-            "items": {
-                "type": "string"
-            }
-        },
        "keepAlive": {
            "type": "string"
        }
--- a/internal/proxy/director/metrics.go
+++ b/internal/proxy/director/metrics.go
@ -0,0 +1,20 @@
+package director
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+)
+
+const (
+	metricNamespace  = "bouncer_proxy_director"
+	metricLabelProxy = "proxy"
+)
+
+var metricProxyRequestsTotal = promauto.NewCounterVec(
+	prometheus.CounterOpts{
+		Name:      "proxy_requests_total",
+		Help:      "Bouncer proxy total requests",
+		Namespace: metricNamespace,
+	},
+	[]string{metricLabelProxy},
+)
--- a/internal/proxy/server.go
+++ b/internal/proxy/server.go
@ -15,6 +15,7 @@ import (
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 	"github.com/pkg/errors"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"gitlab.com/wpetit/goweb/logger"
 )

@ -84,18 +85,40 @@ func (s *Server) run(parentCtx context.Context, addrs chan net.Addr, errs chan e
 	)

 	router.Use(middleware.RequestLogger(bouncerChi.NewLogFormatter()))
-	router.Use(director.Middleware())

-	handler := proxy.New(
-		proxy.WithRequestTransformers(
-			director.RequestTransformer(),
-		),
-		proxy.WithResponseTransformers(
-			director.ResponseTransformer(),
-		),
-	)
+	if s.serverConfig.Metrics.Enabled {
+		metrics := s.serverConfig.Metrics

-	router.Handle("/*", handler)
+		logger.Info(ctx, "enabling metrics", logger.F("endpoint", metrics.Endpoint))
+
+		router.Group(func(r chi.Router) {
+			if metrics.BasicAuth != nil {
+				logger.Info(ctx, "enabling authentication on metrics endpoint")
+
+				r.Use(middleware.BasicAuth(
+					"metrics",
+					metrics.BasicAuth.CredentialsMap(),
+				))
+			}
+
+			r.Handle(string(metrics.Endpoint), promhttp.Handler())
+		})
+	}
+
+	router.Group(func(r chi.Router) {
+		r.Use(director.Middleware())
+
+		handler := proxy.New(
+			proxy.WithRequestTransformers(
+				director.RequestTransformer(),
+			),
+			proxy.WithResponseTransformers(
+				director.ResponseTransformer(),
+			),
+		)
+
+		r.Handle("/*", handler)
+	})

 	if err := http.Serve(listener, router); err != nil && !errors.Is(err, net.ErrClosed) {
 		errs <- errors.WithStack(err)
--- a/internal/queue/schema.go
+++ b/internal/queue/schema.go
@ -1,20 +0,0 @@
-package queue
-
-import (
-	_ "embed"
-
-	"forge.cadoles.com/cadoles/bouncer/internal/schema"
-	"github.com/pkg/errors"
-)
-
-//go:embed schema/layer-options.json
-var rawLayerOptionsSchema []byte
-
-func init() {
-	layerOptionsSchema, err := schema.Parse(rawLayerOptionsSchema)
-	if err != nil {
-		panic(errors.Wrap(err, "could not parse queue layer options schema"))
-	}
-
-	schema.RegisterLayerOptionsSchema(LayerType, layerOptionsSchema)
-}
--- a/internal/schema/load.go
+++ b/internal/schema/load.go
@ -7,8 +7,10 @@ import (
 	"github.com/qri-io/jsonschema"
 )

-func Parse(data []byte) (*jsonschema.Schema, error) {
-	var schema jsonschema.Schema
+type Schema = jsonschema.Schema
+
+func Parse(data []byte) (*Schema, error) {
+	var schema Schema
 	if err := json.Unmarshal(data, &schema); err != nil {
 		return nil, errors.WithStack(err)
 	}
--- a/internal/schema/registry.go
+++ b/internal/schema/registry.go
@ -1,56 +0,0 @@
-package schema
-
-import (
-	"context"
-
-	"forge.cadoles.com/cadoles/bouncer/internal/store"
-	"github.com/pkg/errors"
-	"github.com/qri-io/jsonschema"
-)
-
-var defaultRegistry = NewRegistry()
-
-func RegisterLayerOptionsSchema(layerType store.LayerType, schema *jsonschema.Schema) {
-	defaultRegistry.RegisterLayerOptionsSchema(layerType, schema)
-}
-
-func ValidateLayerOptions(ctx context.Context, layerType store.LayerType, options *store.LayerOptions) error {
-	if err := defaultRegistry.ValidateLayerOptions(ctx, layerType, options); err != nil {
-		return errors.WithStack(err)
-	}
-
-	return nil
-}
-
-type Registry struct {
-	layerOptionSchemas map[store.LayerType]*jsonschema.Schema
-}
-
-func (r *Registry) RegisterLayerOptionsSchema(layerType store.LayerType, schema *jsonschema.Schema) {
-	r.layerOptionSchemas[layerType] = schema
-}
-
-func (r *Registry) ValidateLayerOptions(ctx context.Context, layerType store.LayerType, options *store.LayerOptions) error {
-	schema, exists := r.layerOptionSchemas[layerType]
-	if !exists {
-		return errors.WithStack(ErrSchemaNotFound)
-	}
-
-	rawOptions := func(opts *store.LayerOptions) map[string]any {
-		return *opts
-	}(options)
-
-	state := schema.Validate(ctx, rawOptions)
-
-	if len(*state.Errs) > 0 {
-		return errors.WithStack(NewInvalidDataError(*state.Errs...))
-	}
-
-	return nil
-}
-
-func NewRegistry() *Registry {
-	return &Registry{
-		layerOptionSchemas: make(map[store.LayerType]*jsonschema.Schema),
-	}
-}
--- a/internal/schema/validate.go
+++ b/internal/schema/validate.go
@ -0,0 +1,17 @@
+package schema
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+)
+
+func Validate(ctx context.Context, schema *Schema, data map[string]any) error {
+	state := schema.Validate(ctx, data)
+
+	if len(*state.Errs) > 0 {
+		return errors.WithStack(NewInvalidDataError(*state.Errs...))
+	}
+
+	return nil
+}
--- a/internal/setup/default_registry.go
+++ b/internal/setup/default_registry.go
@ -0,0 +1,43 @@
+package setup
+
+import (
+	"context"
+
+	"forge.cadoles.com/cadoles/bouncer/internal/config"
+	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
+	"forge.cadoles.com/cadoles/bouncer/internal/store"
+	"github.com/pkg/errors"
+	"github.com/qri-io/jsonschema"
+)
+
+var defaultRegistry = NewRegistry()
+
+func RegisterLayer(layerType store.LayerType, setupFunc LayerSetupFunc, rawOptionsSchema []byte) {
+	defaultRegistry.RegisterLayer(layerType, setupFunc, rawOptionsSchema)
+}
+
+func GetLayerOptionsSchema(layerType store.LayerType) (*jsonschema.Schema, error) {
+	schema, err := defaultRegistry.GetLayerOptionsSchema(layerType)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return schema, nil
+}
+
+func GetLayers(ctx context.Context, conf *config.Config) ([]director.Layer, error) {
+	layers, err := defaultRegistry.GetLayers(ctx, conf)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return layers, nil
+}
+
+func GetLayerTypes() []store.LayerType {
+	return defaultRegistry.GetLayerTypes()
+}
+
+func LayerTypeExists(layerType store.LayerType) bool {
+	return defaultRegistry.LayerTypeExists(layerType)
+}
--- a/internal/setup/error.go
+++ b/internal/setup/error.go
@ -0,0 +1,5 @@
+package setup
+
+import "errors"
+
+var ErrNotFound = errors.New("not found")
--- a/internal/setup/queue_layer.go
+++ b/internal/setup/queue_layer.go
@ -0,0 +1,45 @@
+package setup
+
+import (
+	"time"
+
+	"forge.cadoles.com/cadoles/bouncer/internal/config"
+	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
+	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director/layer/queue"
+	queueRedis "forge.cadoles.com/cadoles/bouncer/internal/proxy/director/layer/queue/redis"
+	"github.com/pkg/errors"
+	"github.com/redis/go-redis/v9"
+)
+
+func init() {
+	RegisterLayer(queue.LayerType, setupQueueLayer, queue.RawLayerOptionsSchema)
+}
+
+func setupQueueLayer(conf *config.Config) (director.Layer, error) {
+	adapter, err := newQueueAdapter(conf.Redis)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	options := []queue.OptionFunc{
+		queue.WithTemplateDir(string(conf.Layers.Queue.TemplateDir)),
+	}
+
+	if conf.Layers.Queue.DefaultKeepAlive != nil {
+		options = append(options, queue.WithDefaultKeepAlive(time.Duration(*conf.Layers.Queue.DefaultKeepAlive)))
+	}
+
+	return queue.New(
+		adapter,
+		options...,
+	), nil
+}
+
+func newQueueAdapter(redisConf config.RedisConfig) (queue.Adapter, error) {
+	rdb := redis.NewUniversalClient(&redis.UniversalOptions{
+		Addrs:      redisConf.Adresses,
+		MasterName: string(redisConf.Master),
+	})
+
+	return queueRedis.NewAdapter(rdb, 2), nil
+}
--- a/internal/setup/queue_repository.go
+++ b/internal/setup/queue_repository.go
@ -1,20 +0,0 @@
-package setup
-
-import (
-	"context"
-
-	"forge.cadoles.com/cadoles/bouncer/internal/config"
-	"forge.cadoles.com/cadoles/bouncer/internal/queue"
-	"github.com/redis/go-redis/v9"
-
-	queueRedis "forge.cadoles.com/cadoles/bouncer/internal/queue/redis"
-)
-
-func NewQueueAdapter(ctx context.Context, redisConf config.RedisConfig) (queue.Adapter, error) {
-	rdb := redis.NewUniversalClient(&redis.UniversalOptions{
-		Addrs:      redisConf.Adresses,
-		MasterName: string(redisConf.Master),
-	})
-
-	return queueRedis.NewAdapter(rdb, 2), nil
-}
--- a/internal/setup/registry.go
+++ b/internal/setup/registry.go
@ -0,0 +1,80 @@
+package setup
+
+import (
+	"context"
+
+	"forge.cadoles.com/cadoles/bouncer/internal/config"
+	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
+	"forge.cadoles.com/cadoles/bouncer/internal/schema"
+	"forge.cadoles.com/cadoles/bouncer/internal/store"
+	"github.com/pkg/errors"
+)
+
+type layerEntry struct {
+	setup            LayerSetupFunc
+	rawOptionsSchema []byte
+}
+
+type Registry struct {
+	layers map[store.LayerType]layerEntry
+}
+
+type LayerSetupFunc func(*config.Config) (director.Layer, error)
+
+func (r *Registry) RegisterLayer(layerType store.LayerType, layerSetup LayerSetupFunc, rawOptionsSchema []byte) {
+	r.layers[layerType] = layerEntry{
+		setup:            layerSetup,
+		rawOptionsSchema: rawOptionsSchema,
+	}
+}
+
+func (r *Registry) GetLayerOptionsSchema(layerType store.LayerType) (*schema.Schema, error) {
+	layerEntry, exists := r.layers[layerType]
+	if !exists {
+		return nil, errors.WithStack(ErrNotFound)
+	}
+
+	schema, err := schema.Parse(layerEntry.rawOptionsSchema)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	return schema, nil
+}
+
+func (r *Registry) GetLayers(ctx context.Context, conf *config.Config) ([]director.Layer, error) {
+	layers := make([]director.Layer, 0, len(r.layers))
+
+	for layerType, layerEntry := range r.layers {
+		layer, err := layerEntry.setup(conf)
+		if err != nil {
+			return nil, errors.Wrapf(err, "could not create layer '%s'", layerType)
+		}
+
+		layers = append(layers, layer)
+	}
+
+	return layers, nil
+}
+
+func (r *Registry) LayerTypeExists(layerType store.LayerType) bool {
+	_, exists := r.layers[layerType]
+
+	return exists
+}
+
+func (r *Registry) GetLayerTypes() []store.LayerType {
+	layerTypes := make([]store.LayerType, 0, len(r.layers))
+
+	for layerType := range r.layers {
+		layerTypes = append(layerTypes, layerType)
+	}
+
+	return layerTypes
+}
+
+func NewRegistry() *Registry {
+	return &Registry{
+		layers: make(map[store.LayerType]layerEntry),
+	}
+}
--- a/layers/queue/templates/queue.gohtml
+++ b/layers/queue/templates/queue.gohtml
@ -5,7 +5,7 @@
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width,initial-scale=1">
        <title>Veuillez patienter - {{ .QueueName }}</title>
-        <meta http-equiv="refresh" content="{{ .RefreshRate }}">
+        <meta http-equiv="refresh" content="{{ .RefreshRate.Seconds }}">
        <style>
            html {
              box-sizing: border-box;
--- a/misc/docker-compose/README.md
+++ b/misc/docker-compose/README.md
@ -0,0 +1,37 @@
+# Exemple de déploiement multi-noeuds avec Docker-Compose
+
+Le répertoire `misc/docker-compose` contient un exemple de déploiement de Bouncer multi-noeuds avec:
+
+- 3 instances du service `bouncer-proxy`;
+- 1 instance du service `haproxy` en frontal en charge du load-balancing;
+- 1 instance du service `bouncer-admin`;
+- 1 serveur Redis.
+
+## Prérequis
+
+- [Docker Compose](https://docs.docker.com/compose/)
+
+## Étapes
+
+1. Se positionner dans le répertoire puis lancer l'environnement avec la commande `docker-compose`:
+
+    ```bash
+    cd misc/docker-compose
+    docker-compose up
+    ```
+
+2. Entrer dans le conteneur `bouncer-admin` puis créer un jeton d'accès:
+
+    ```bash
+    docker-compose exec bouncer-admin /bin/sh
+    bouncer auth create-token --role writer > .bouncer-token
+    ```
+
+3. Créer un proxy via le CLI:
+
+    ```bash
+    bouncer admin proxy create --proxy-name myproxy --proxy-to "https://www.cadoles.com/"
+    bouncer admin proxy update --proxy-name myproxy --proxy-enabled=true
+    ```
+
+4. Via votre navigateur, accéder à l'URL http://127.0.0.1:8080. La page du site Cadoles devrait s'afficher. Dans le log de la commande `docker-compose up` vous devriez voir que les requêtes sont routées à tour de rôle sur les 3 instances de Bouncer en exécution.
--- a/misc/docker-compose/bouncer/admin-key.json
+++ b/misc/docker-compose/bouncer/admin-key.json
@ -0,0 +1 @@
+{"d":"JuBw5OsGv3rPgVczxUgtJ6iUQ41LQu4Xpu-t8IKI_z8r-BZBlbndxidPmRlGZASLGL3rhY4qw6_ScFxakrMpCreO1RMU0kqtz--N48BXFnW5tEgr1voyyKP__bPssQNn6PgkoyAd11es7MEKlBff_DtGrcSkVRgU0zDZB-vIU0aNEIZPNw0icbYqc1u_QQNPpBU9cw6P33WHhzvfCVAkZKRszwznhiPM08n1vjpiA7e1kQ8a6OC4IFZBvohkmpmyOq1g1OLRABQ83YPCjGjCAejO-jEWkbLksp6rAl_YYpCvfBAjFV76JuZq4eh5IU82LsSfi3PGYBkhxWuLY779XQ","dp":"gljHOQowGK7fVn2DJizWtgRIDJuKpKnoX2PWNJUbm2WZwcEPZalAkxn7Y-w_reLVJZuRpfKEUMS-Tn3-CwI1ZjCHPqMPTXcoG0Pe2E-Z88jOs9lW4XSOASiiM980VIvkV1xCxDJkN3NsDFQ9j9kRGnKuMnsucCW3AKaU917hXNU","dq":"mqY19JcEBDnzS70_XkAsOKqPzemOScax66b-4N6zrsgeLVlRjHffY9uCAgBWzlxOidRdQN8q23ZJB4fqsKB2w00Iw7Jxx94IoAKGjKDT5iB48Y_kdKLAwSHRTXsqA9GG3po_H_JpP_EqX4TDBYtqQZuBD_tACP9HbLYMi_V2YU8","e":"AQAB","kty":"RSA","n":"sam0X0BGcuFwX8z3Wde8cv2o_zl6A9ghpkT0tCjw8qH3GNWrbAqzncSWdHBzoChBgAbuTOVs-ixYC0KeUhwFdc8Ul-jmKJWFaS8kIr3y4EH62-vLgMuIKfaxbsyUG6KMkJfnftge1jPO4ccddNej9msxcqTxu37dcgstutwtd6QkS9p5RrNbDBc8-Z7SQ4TuxJfP8msXRnCPJ-I44yszGdQF1Np2DXakJHVn8PBrDh3iSFwORw8jxNS4oS0OlBl5aSc0t5XkkaNcSU2a50SKts290w54fl6MPJ1sLnnznLy4uu37-nrfEUvqRLDZL9B1F82RM1dtLIIiN4gnSrMlpQ","p":"wOmFPhAT_wXWzMuwtEdYIer3-CiOWxFKpFL09eEJkJ29MIUchEaoiJaUAghqPxM48llfOVaUaLbFVxmo5U3fyjNMaP-nHMUBwojutykMK-gC2R3J4bQgFWfKbGSL7M7UsextAvpq9iiOuR0LNE-xTfCgPIxHVdPZskO3yx0DkjM","q":"68OGRb0tLRjb_PpkGctcSjEz_vvcyjzxGL-fn4_h4GCw98Xrj6Y4rZ4lfWWRSeDohSvdd-ICSlxvxkQOIOcA0H7jyJcBC0KDs4hX5BRGJNDri3QX0ry4_F1ptAdbfiFgQGqCfMRCr7L60Tfd_6tLczvny7eEBKQNGdj6dLfhgMc","qi":"DFwixyxUDf0REPLLa8hOKieRL95_AH9rbYWzStBOdSjKWra5l0reD6a4bbvAYvl0e8qCcRI6S8Nzpz0BYm4sJL7poVOnjxqvBY3Q9Ppf4Mq8lW39pOCJcqOHIvvYHsMjTC5uwp7Yg2p0GvxuUibbyNL1PXf6WZ_szVP_oSMrCXA"}
--- a/misc/docker-compose/bouncer/config.yml
+++ b/misc/docker-compose/bouncer/config.yml
@ -0,0 +1,47 @@
+admin:
+    http:
+        host: 127.0.0.1
+        port: 8081
+    cors:
+        allowedOrigins:
+            - http://localhost:3001
+        allowCredentials: true
+        allowMethods:
+            - POST
+            - GET
+            - PUT
+            - DELETE
+        allowedHeaders:
+            - Origin
+            - Accept
+            - Content-Type
+            - Authorization
+            - Sentry-Trace
+        debug: false
+    auth:
+        issuer: http://127.0.0.1:8081
+        privateKey: /etc/bouncer/admin-key.json
+    metrics:
+        enabled: true
+        endpoint: /.bouncer/metrics
+        basicAuth: null
+proxy:
+    http:
+        host: 0.0.0.0
+        port: 8080
+    metrics:
+        enabled: true
+        endpoint: /.bouncer/metrics
+        basicAuth: null
+        
+redis:
+    addresses:
+        - redis:6379
+    master: ""
+logger:
+    level: 1
+    format: human
+layers:
+    queue:
+        templateDir: /usr/share/bouncer/layers/queue/templates
+        defaultKeepAlive: 1m0s
--- a/misc/docker-compose/docker-compose.yml
+++ b/misc/docker-compose/docker-compose.yml
@ -0,0 +1,42 @@
+version: "2"
+services:
+  haproxy:
+    image: reg.cadoles.com/proxy_cache/library/haproxy:2.7-alpine
+    ports:
+      - 8080:8080
+    links:
+      - bouncer-proxy-1
+      - bouncer-proxy-2
+      - bouncer-proxy-3
+    volumes:
+      - ./haproxy/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg
+
+  bouncer-admin:
+    image: reg.cadoles.com/cadoles/bouncer:latest
+    command: bouncer -c /etc/bouncer/config.yml server admin run
+    links:
+      - redis
+    volumes:
+      - ./bouncer/config.yml:/etc/bouncer/config.yml
+      - ./bouncer/admin-key.json:/etc/bouncer/admin-key.json
+
+  bouncer-proxy-1: &bouncer-proxy
+    image: reg.cadoles.com/cadoles/bouncer:latest
+    command: bouncer -c /etc/bouncer/config.yml server proxy run
+    links:
+      - redis
+    volumes:
+      - ./bouncer/config.yml:/etc/bouncer/config.yml
+      - ./bouncer/admin-key.json:/etc/bouncer/admin-key.json
+
+  bouncer-proxy-2: *bouncer-proxy
+  bouncer-proxy-3: *bouncer-proxy
+      
+  redis:
+    image: reg.cadoles.com/proxy_cache/library/redis:7-alpine
+    command: redis-server --save 60 1 --loglevel verbose
+    volumes:
+      - redis-data:/data
+
+volumes:
+  redis-data:
--- a/misc/docker-compose/haproxy/haproxy.cfg
+++ b/misc/docker-compose/haproxy/haproxy.cfg
@ -0,0 +1,21 @@
+global
+    maxconn 100
+    log stdout format raw local0 info
+
+defaults
+    mode    http
+    timeout client  30s
+    timeout server  30s
+    timeout connect 30s
+    log global
+    option httplog
+
+frontend proxy
+    bind    *:8080
+    default_backend bouncer-proxy
+
+backend bouncer-proxy
+    mode    http
+    server  bouncer-proxy-1 bouncer-proxy-1:8080 check
+    server  bouncer-proxy-2 bouncer-proxy-2:8080 check
+    server  bouncer-proxy-3 bouncer-proxy-3:8080 check
--- a/misc/logo/bouncer.png
+++ b/misc/logo/bouncer.png
--- a/misc/packaging/common/config.yml
+++ b/misc/packaging/common/config.yml
@ -26,10 +26,26 @@ admin:
            - Authorization
            - Sentry-Trace
        debug: false
+    
+    # Authentification JWT
    auth:
+        # Origine du jeton JWT
        issuer: http://127.0.0.1:8081
+        # Clé privée permettant de signer les jetons
+        # JWT générés pour l'usage de l'API d'administration.
        privateKey: /etc/bouncer/admin-key.json

+    # Métriques Prometheus
+    metrics:
+        # Activer ou désactiver la publication des métriques
+        enabled: true
+        # Route de publication des métriques
+        endpoint: /.bouncer/metrics
+        # Authentification "basic auth" sur la page
+        # de publication
+        # Mettre à null pour désactiver l'authentification
+        basicAuth: null
+
 # Configuration du service "proxy"
 proxy:
    http:
@ -38,6 +54,18 @@ proxy:
        host: 0.0.0.0
        # Port d'écoute du service
        port: 8080
+    
+    # Métriques Prometheus
+    metrics:
+        # Activer ou désactiver la publication des métriques
+        enabled: true
+        # Route de publication des métriques
+        endpoint: /.bouncer/metrics
+        # Authentification "basic auth" sur la page
+        # de publication
+        # Mettre à null pour désactiver l'authentification
+        basicAuth:
+            prom: etheus

 # Configuration du client Redis
 #
--- a/modd.conf
+++ b/modd.conf
@ -8,8 +8,8 @@ layers/**
    prep: make build-bouncer
    prep: make config.yml
    prep: make .bouncer-token
-    daemon: make run BOUNCER_CMD="--config config.yml server admin run"
-    daemon: make run BOUNCER_CMD="--config config.yml server proxy run"
+    daemon: make run BOUNCER_CMD="--debug --config config.yml server admin run"
+    daemon: make run BOUNCER_CMD="--debug --config config.yml server proxy run"
 }

 {
Author	SHA1	Message	Date
William Petit	15daddbe13	feat: add multi-nodes docker-compose deployment example All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-07-01 11:38:16 -06:00
William Petit	5a7062d53e	fix: remove log message All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-07-01 11:33:59 -06:00
William Petit	74409f18e8	feat: update packaged configuration All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-30 17:51:01 -06:00
wpetit	ab7f64a684	Merge pull request 'Métriques de base Prometheus' (#4 ) from metrics into develop All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details Reviewed-on: #4	2023-07-01 01:32:10 +02:00
William Petit	d5cc15de3b	chore: run service in debug mode by default All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details Cadoles/bouncer/pipeline/pr-develop This commit looks good Details	2023-06-30 10:26:52 -06:00
William Petit	56609ec316	feat: add basic prometheus metrics integration Some checks reported errors Cadoles/bouncer/pipeline/head Something is wrong with the build of this commit Details	2023-06-30 10:26:27 -06:00
William Petit	5bf391b6bf	fix(docker): add layers templates in image All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-29 20:36:11 -06:00
William Petit	74928fe413	chore: add log message for workdir and configuration loading All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-29 20:16:25 -06:00
William Petit	ff1d01828d	fix: docker image build All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-29 20:14:20 -06:00
William Petit	851f5d64cc	doc: add getting started with sources tutorial	2023-06-29 20:13:21 -06:00
William Petit	e0d81c061b	chore: add png logo All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-29 14:45:47 -06:00
wpetit	440d467938	fix(doc): bad link All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-26 16:37:55 +02:00
wpetit	f8d33299b9	fix(doc): typo All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-26 14:25:42 +02:00
wpetit	6fed6358b2	fix(doc): typo Some checks reported errors Cadoles/bouncer/pipeline/head Something is wrong with the build of this commit Details	2023-06-26 14:24:34 +02:00
William Petit	ef869a02ea	doc: add 'how to create a custom layer' tutorial All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-24 12:28:16 -06:00
William Petit	6559d1f594	fix(command,proxy): allow from flag to be optional Some checks reported errors Cadoles/bouncer/pipeline/head Something is wrong with the build of this commit Details	2023-06-24 12:27:29 -06:00
William Petit	8d91f646c2	feat: refactor layers registration All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-23 17:54:34 -06:00
William Petit	e32c72e030	feat: command flags cleanup All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-23 11:08:35 -06:00
William Petit	8d21e9083c	doc: add general architecture base document + layers base reference All checks were successful Cadoles/bouncer/pipeline/head This commit looks good Details	2023-06-22 20:53:58 -06:00
				`@ -0,0 +1 @@`
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