scaffold controller

config/certmanager/certificate.yaml

@@ -0,0 +1,24 @@
+# The following manifests contain a self-signed issuer CR and a certificate CR.
+# More document can be found at https://docs.cert-manager.io
+apiVersion: certmanager.k8s.io/v1alpha1
+kind: Issuer
+metadata:
+  name: selfsigned-issuer
+  namespace: system
+spec:
+  selfSigned: {}
+---
+apiVersion: certmanager.k8s.io/v1alpha1
+kind: Certificate
+metadata:
+  name: serving-cert  # this name should match the one appeared in kustomizeconfig.yaml
+  namespace: system
+spec:
+  # $(SERVICENAME) and $(NAMESPACE) will be substituted by kustomize
+  commonName: $(SERVICENAME).$(NAMESPACE).svc
+  dnsNames:
+  - $(SERVICENAME).$(NAMESPACE).svc.cluster.local
+  issuerRef:
+    kind: Issuer
+    name: selfsigned-issuer
+  secretName: webhook-server-cert # this secret will not be prefixed, since it's not managed by kustomize

config/certmanager/kustomization.yaml

@@ -0,0 +1,26 @@
+resources:
+- certificate.yaml
+
+# the following config is for teaching kustomize how to do var substitution
+vars:
+- name: NAMESPACE # namespace of the service and the certificate CR
+  objref:
+    kind: Service
+    version: v1
+    name: webhook-service
+  fieldref:
+    fieldpath: metadata.namespace
+- name: CERTIFICATENAME
+  objref:
+    kind: Certificate
+    group: certmanager.k8s.io
+    version: v1alpha1
+    name: serving-cert # this name should match the one in certificate.yaml
+- name: SERVICENAME
+  objref:
+    kind: Service
+    version: v1
+    name: webhook-service
+
+configurations:
+- kustomizeconfig.yaml

config/certmanager/kustomizeconfig.yaml

@@ -0,0 +1,16 @@
+# This configuration is for teaching kustomize how to update name ref and var substitution 
+nameReference:
+- kind: Issuer
+  group: certmanager.k8s.io
+  fieldSpecs:
+  - kind: Certificate
+    group: certmanager.k8s.io
+    path: spec/issuerRef/name
+
+varReference:
+- kind: Certificate
+  group: certmanager.k8s.io
+  path: spec/commonName
+- kind: Certificate
+  group: certmanager.k8s.io
+  path: spec/dnsNames

config/crd/kustomization.yaml

@@ -0,0 +1,19 @@
+# This kustomization.yaml is not intended to be run by itself,
+# since it depends on service name and namespace that are out of this kustomize package.
+# It should be run by config/default
+resources:
+- bases/hydra.ory.sh_oauth2clients.yaml
+# +kubebuilder:scaffold:crdkustomizeresource
+
+patches:
+# [WEBHOOK] patches here are for enabling the conversion webhook for each CRD
+#- patches/webhook_in_oauth2clients.yaml
+# +kubebuilder:scaffold:crdkustomizewebhookpatch
+
+# [CAINJECTION] patches here are for enabling the CA injection for each CRD
+#- patches/cainjection_in_oauth2clients.yaml
+# +kubebuilder:scaffold:crdkustomizecainjectionpatch
+
+# the following config is for teaching kustomize how to do kustomization for CRDs.
+configurations:
+- kustomizeconfig.yaml

config/crd/kustomizeconfig.yaml

@@ -0,0 +1,17 @@
+# This file is for teaching kustomize how to substitute name and namespace reference in CRD
+nameReference:
+- kind: Service
+  version: v1
+  fieldSpecs:
+  - kind: CustomResourceDefinition
+    group: apiextensions.k8s.io
+    path: spec/conversion/webhookClientConfig/service/name
+
+namespace:
+- kind: CustomResourceDefinition
+  group: apiextensions.k8s.io
+  path: spec/conversion/webhookClientConfig/service/namespace
+  create: false
+
+varReference:
+- path: metadata/annotations

config/crd/patches/cainjection_in_oauth2clients.yaml

@@ -0,0 +1,8 @@
+# The following patch adds a directive for certmanager to inject CA into the CRD
+# CRD conversion requires k8s 1.13 or later.
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    certmanager.k8s.io/inject-ca-from: $(NAMESPACE)/$(CERTIFICATENAME)
+  name: oauth2clients.hydra.ory.sh

config/crd/patches/webhook_in_oauth2clients.yaml

@@ -0,0 +1,17 @@
+# The following patch enables conversion webhook for CRD
+# CRD conversion requires k8s 1.13 or later.
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: oauth2clients.hydra.ory.sh
+spec:
+  conversion:
+    strategy: Webhook
+    webhookClientConfig:
+      # this is "\n" used as a placeholder, otherwise it will be rejected by the apiserver for being blank,
+      # but we're going to set it later using the cert-manager (or potentially a patch if not using cert-manager)
+      caBundle: Cg==
+      service:
+        namespace: system
+        name: webhook-service
+        path: /convert

config/default/kustomization.yaml

@@ -0,0 +1,43 @@
+# Adds namespace to all resources.
+namespace: hydra-maester-system
+
+# Value of this field is prepended to the
+# names of all resources, e.g. a deployment named
+# "wordpress" becomes "alices-wordpress".
+# Note that it should also match with the prefix (text before '-') of the namespace
+# field above.
+namePrefix: hydra-maester-
+
+# Labels to add to all resources and selectors.
+#commonLabels:
+#  someName: someValue
+
+bases:
+- ../crd
+- ../rbac
+- ../manager
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in crd/kustomization.yaml
+#- ../webhook
+# [CERTMANAGER] To enable cert-manager, uncomment next line. 'WEBHOOK' components are required.
+#- ../certmanager
+
+patches:
+- manager_image_patch.yaml
+  # Protect the /metrics endpoint by putting it behind auth.
+  # Only one of manager_auth_proxy_patch.yaml and
+  # manager_prometheus_metrics_patch.yaml should be enabled.
+- manager_auth_proxy_patch.yaml
+  # If you want your controller-manager to expose the /metrics
+  # endpoint w/o any authn/z, uncomment the following line and
+  # comment manager_auth_proxy_patch.yaml.
+  # Only one of manager_auth_proxy_patch.yaml and
+  # manager_prometheus_metrics_patch.yaml should be enabled.
+#- manager_prometheus_metrics_patch.yaml
+
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in crd/kustomization.yaml
+#- manager_webhook_patch.yaml
+
+# [CAINJECTION] Uncomment next line to enable the CA injection in the admission webhooks.
+# Uncomment 'CAINJECTION' in crd/kustomization.yaml to enable the CA injection in the admission webhooks.
+# 'CERTMANAGER' needs to be enabled to use ca injection
+#- webhookcainjection_patch.yaml

config/default/manager_auth_proxy_patch.yaml

@@ -0,0 +1,24 @@
+# This patch inject a sidecar container which is a HTTP proxy for the controller manager,
+# it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: kube-rbac-proxy
+        image: gcr.io/kubebuilder/kube-rbac-proxy:v0.4.0
+        args:
+        - "--secure-listen-address=0.0.0.0:8443"
+        - "--upstream=http://127.0.0.1:8080/"
+        - "--logtostderr=true"
+        - "--v=10"
+        ports:
+        - containerPort: 8443
+          name: https
+      - name: manager
+        args:
+        - "--metrics-addr=127.0.0.1:8080"

config/default/manager_image_patch.yaml

@@ -0,0 +1,12 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      # Change the value of image field below to your controller image URL
+      - image: IMAGE_URL
+        name: manager

config/default/manager_prometheus_metrics_patch.yaml

@@ -0,0 +1,19 @@
+# This patch enables Prometheus scraping for the manager pod.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    metadata:
+      annotations:
+        prometheus.io/scrape: 'true'
+    spec:
+      containers:
+      # Expose the prometheus metrics on default port
+      - name: manager
+        ports:
+        - containerPort: 8080
+          name: metrics
+          protocol: TCP

config/default/manager_webhook_patch.yaml

@@ -0,0 +1,23 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: manager
+        ports:
+        - containerPort: 443
+          name: webhook-server
+          protocol: TCP
+        volumeMounts:
+        - mountPath: /tmp/k8s-webhook-server/serving-certs
+          name: cert
+          readOnly: true
+      volumes:
+      - name: cert
+        secret:
+          defaultMode: 420
+          secretName: webhook-server-cert

config/default/webhookcainjection_patch.yaml

@@ -0,0 +1,15 @@
+# This patch add annotation to admission webhook config and
+# the variables $(NAMESPACE) and $(CERTIFICATENAME) will be substituted by kustomize.  
+apiVersion: admissionregistration.k8s.io/v1beta1
+kind: MutatingWebhookConfiguration
+metadata:
+  name: mutating-webhook-configuration
+  annotations:
+    certmanager.k8s.io/inject-ca-from: $(NAMESPACE)/$(CERTIFICATENAME)
+---
+apiVersion: admissionregistration.k8s.io/v1beta1
+kind: ValidatingWebhookConfiguration
+metadata:
+  name: validating-webhook-configuration
+  annotations:
+    certmanager.k8s.io/inject-ca-from: $(NAMESPACE)/$(CERTIFICATENAME)

config/manager/kustomization.yaml

@@ -0,0 +1,2 @@
+resources:
+- manager.yaml

config/manager/manager.yaml

@@ -0,0 +1,39 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  labels:
+    control-plane: controller-manager
+  name: system
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+  labels:
+    control-plane: controller-manager
+spec:
+  selector:
+    matchLabels:
+      control-plane: controller-manager
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        control-plane: controller-manager
+    spec:
+      containers:
+      - command:
+        - /manager
+        args:
+        - --enable-leader-election
+        image: controller:latest
+        name: manager
+        resources:
+          limits:
+            cpu: 100m
+            memory: 30Mi
+          requests:
+            cpu: 100m
+            memory: 20Mi
+      terminationGracePeriodSeconds: 10

config/rbac/auth_proxy_role.yaml

@@ -0,0 +1,13 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: proxy-role
+rules:
+- apiGroups: ["authentication.k8s.io"]
+  resources:
+  - tokenreviews
+  verbs: ["create"]
+- apiGroups: ["authorization.k8s.io"]
+  resources:
+  - subjectaccessreviews
+  verbs: ["create"]

config/rbac/auth_proxy_role_binding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: proxy-rolebinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: proxy-role
+subjects:
+- kind: ServiceAccount
+  name: default
+  namespace: system

config/rbac/auth_proxy_service.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  annotations:
+    prometheus.io/port: "8443"
+    prometheus.io/scheme: https
+    prometheus.io/scrape: "true"
+  labels:
+    control-plane: controller-manager
+  name: controller-manager-metrics-service
+  namespace: system
+spec:
+  ports:
+  - name: https
+    port: 8443
+    targetPort: https
+  selector:
+    control-plane: controller-manager

config/rbac/kustomization.yaml

@@ -0,0 +1,11 @@
+resources:
+- role.yaml
+- role_binding.yaml
+- leader_election_role.yaml
+- leader_election_role_binding.yaml
+# Comment the following 3 lines if you want to disable
+# the auth proxy (https://github.com/brancz/kube-rbac-proxy)
+# which protects your /metrics endpoint.
+- auth_proxy_service.yaml
+- auth_proxy_role.yaml
+- auth_proxy_role_binding.yaml

config/rbac/leader_election_role.yaml

@@ -0,0 +1,26 @@
+# permissions to do leader election.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: leader-election-role
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - configmaps
+  verbs:
+  - get
+  - list
+  - watch
+  - create
+  - update
+  - patch
+  - delete
+- apiGroups:
+  - ""
+  resources:
+  - configmaps/status
+  verbs:
+  - get
+  - update
+  - patch

config/rbac/leader_election_role_binding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: leader-election-rolebinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: leader-election-role
+subjects:
+- kind: ServiceAccount
+  name: default
+  namespace: system

config/rbac/role_binding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: manager-rolebinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: manager-role
+subjects:
+- kind: ServiceAccount
+  name: default
+  namespace: system

config/samples/hydra_v1alpha1_oauth2client.yaml

@@ -0,0 +1,7 @@
+apiVersion: hydra.ory.sh/v1alpha1
+kind: OAuth2Client
+metadata:
+  name: oauth2client-sample
+spec:
+  # Add fields here
+  foo: bar

config/webhook/kustomization.yaml

@@ -0,0 +1,6 @@
+resources:
+- manifests.yaml
+- service.yaml
+
+configurations:
+- kustomizeconfig.yaml

config/webhook/kustomizeconfig.yaml

@@ -0,0 +1,25 @@
+# the following config is for teaching kustomize where to look at when substituting vars.
+# It requires kustomize v2.1.0 or newer to work properly.
+nameReference:
+- kind: Service
+  version: v1
+  fieldSpecs:
+  - kind: MutatingWebhookConfiguration
+    group: admissionregistration.k8s.io
+    path: webhooks/clientConfig/service/name
+  - kind: ValidatingWebhookConfiguration
+    group: admissionregistration.k8s.io
+    path: webhooks/clientConfig/service/name
+
+namespace:
+- kind: MutatingWebhookConfiguration
+  group: admissionregistration.k8s.io
+  path: webhooks/clientConfig/service/namespace
+  create: true
+- kind: ValidatingWebhookConfiguration
+  group: admissionregistration.k8s.io
+  path: webhooks/clientConfig/service/namespace
+  create: true
+
+varReference:
+- path: metadata/annotations

config/webhook/service.yaml

@@ -0,0 +1,12 @@
+
+apiVersion: v1
+kind: Service
+metadata:
+  name: webhook-service
+  namespace: system
+spec:
+  ports:
+    - port: 443
+      targetPort: 443
+  selector:
+    control-plane: controller-manager