feat(hydra): add horizontal pod autoscaling

Reviewed-on: #7

components/hydra-cnpg-database/kustomization.yaml

@@ -29,7 +29,7 @@ vars:
   fieldref:
     fieldpath: metadata.name
 
-patchesJson6902:
+patches:
 - target:
     group: apps
     version: v1
@@ -42,3 +42,9 @@ patchesJson6902:
     kind: Job
     name: hydra-migrate
   path: patches/hydra-migrate-job.yaml
+- target:
+    group: batch
+    version: v1
+    kind: CronJob
+    name: hydra-janitor
+  path: patches/hydra-janitor-cronjob.yaml

components/hydra-cnpg-database/patches/hydra-janitor-cronjob.yaml

@@ -0,0 +1,21 @@
+- op: add
+  path: "/spec/jobTemplate/spec/template/spec/containers/0/env/-"
+  value:
+    name: HYDRA_DATABASE_USER
+    valueFrom:
+      secretKeyRef:
+        name: hydra-postgres-user
+        key: username
+- op: add
+  path: "/spec/jobTemplate/spec/template/spec/containers/0/env/-"
+  value:
+    name: HYDRA_DATABASE_PASSWORD
+    valueFrom:
+      secretKeyRef:
+        name: hydra-postgres-user
+        key: password
+- op: add
+  path: "/spec/jobTemplate/spec/template/spec/containers/0/env/-"
+  value:
+    name: DSN
+    value: "postgres://$(HYDRA_DATABASE_USER):$(HYDRA_DATABASE_PASSWORD)@$(HYDRA_DATABASE_SERVICE_NAME)-rw:5432/hydra?sslmode=disable"

components/oidc-test/kustomization.yaml

@@ -7,7 +7,7 @@ resources:
   - ./resources/oauth2-client.yaml
 
 configMapGenerator:
-  - name: oidc-test-env
+  - name: oidc-test
     literals:
       - LOG_LEVEL=0
       - HTTP_ADDRESS=0.0.0.0:8080

components/oidc-test/resources/deployment.yaml

@@ -24,7 +24,7 @@ spec:
           resources: {}
           envFrom:
           - configMapRef:
-              name: oidc-test-env
+              name: oidc-test
           env:
           - name: OIDC_CLIENT_ID
             valueFrom:

examples/authenticated-app/kustomization.yaml

@@ -2,19 +2,12 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 
 resources:
-  - ../../overlays/base
+  - ../../overlays/full
   - ./resources/ingress.yaml
   - ./resources/saml-idp.yaml
   - ./resources/self-signed-issuer.yaml
   - ./resources/port-forwarder.yaml
 
-components:
-  - ../../components/hydra-cnpg-database
-  - ../../components/oidc-test
-  #- ../../components/hydra-oidc
-  - ../../components/hydra-saml
-
-
 patchesJson6902:
   - target:
       version: v1
@@ -38,7 +31,7 @@ patchesJson6902:
     path: patches/hydra-secret.yaml
   - target:
       version: v1
-      kind: Secret
+      kind: ConfigMap
       name: oidc-test
     path: patches/oidc-test.yaml
   - target:

examples/authenticated-app/patches/oidc-test-oauth2-client.yaml

@@ -3,4 +3,4 @@
   value: https://ssokustom/oauth2/callback
 - op: replace
   path: "/spec/postLogoutRedirectUris/0"
-  value: https://ssokustom/oauth2/callback
+  value: https://ssokustom

examples/authenticated-app/patches/oidc-test.yaml

@@ -1,6 +1,3 @@
-- op: replace
-  path: "/data/LOG_LEVEL"
-  value: 0
 - op: replace
   path: "/data/OIDC_REDIRECT_URL"
   value: https://ssokustom/oauth2/callback

kustomization.yaml

@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+- ./overlays/base

overlays/full/kustomization.yaml

@@ -14,3 +14,4 @@ components:
 - ../../components/hydra-oidc
 - ../../components/hydra-saml
 - ../../components/hydra-sql
+- ../../components/oidc-test

resources/hydra/kustomization.yaml

@@ -9,6 +9,8 @@ resources:
   - ./resources/hydra-serviceaccount.yaml
   - ./resources/hydra-migrate-job.yaml
   - ./resources/hydra-maester
+  - ./resources/hydra-janitor-cronjob.yaml
+  - ./resources/hydra-hpa.yaml
 
 secretGenerator:
   - name: hydra-secret

resources/hydra/resources/hydra-deployment.yaml

@@ -55,6 +55,9 @@ spec:
               name: hydra-public
             - containerPort: 4445
               name: hydra-admin
-          resources: {}
+          resources:
+            requests:
+              cpu: 100m
+              memory: 128Mi
       restartPolicy: Always
   

resources/hydra/resources/hydra-hpa.yaml

@@ -0,0 +1,26 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: hydra
+  labels:
+    io.kompose.service: hydra
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: hydra
+  minReplicas: 1
+  maxReplicas: 3
+  metrics:
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 80
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 80

resources/hydra/resources/hydra-janitor-cronjob.yaml

@@ -0,0 +1,34 @@
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: hydra-janitor
+  labels:
+    app.kubernetes.io/name: hydra-janitor
+spec:
+  concurrencyPolicy: Forbid
+  schedule: "0 */1 * * *"
+  jobTemplate:
+    spec:
+      template:
+        metadata:
+          labels:
+            app.kubernetes.io/name: hydra-janitor
+        spec:
+          restartPolicy: OnFailure
+          serviceAccountName: hydra-sa
+          containers:
+            - name: janitor
+              image: reg.cadoles.com/proxy_cache/oryd/hydra:v2.0.3
+              envFrom:
+              - configMapRef:
+                  name: hydra-env
+              imagePullPolicy: IfNotPresent
+              command: ["hydra"]
+              env: []
+              args:
+                - janitor
+                - --read-from-env
+                - --grants
+                - --requests
+                - --tokens
+              resources: {}