dotfiles/infrastructure/base/wavy/webhook.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: wavy
  labels:
    app.kubernetes.io/name: wavy
---
apiVersion: admissionregistration.k8s.io/v1
kind: MutatingWebhookConfiguration
metadata:
  name: wavy.squat.ai
webhooks:
- name: wavy.squat.ai
  namespaceSelector:
    matchExpressions:
      - key: app.kubernetes.io/name
        operator: NotIn
        values: [wavy]
  rules:
  - apiGroups:   [""]
    apiVersions: [v1]
    operations:  [CREATE]
    resources:   [pods]
    scope:       Namespaced
  - apiGroups:   [apps]
    apiVersions: [v1]
    operations:  [CREATE, UPDATE]
    resources:   [daemonsets, deployments, replicasets, statefulsets]
    scope:       Namespaced
  - apiGroups:   [batch]
    apiVersions: [v1]
    operations:  [CREATE, UPDATE]
    resources:   [cronjobs, jobs]
    scope:       Namespaced
  clientConfig:
    service:
      namespace: wavy
      name: wavy-webhook
      path: /mutate
  admissionReviewVersions: [v1]
  sideEffects: None
  timeoutSeconds: 5
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wavy-webhook
  namespace: wavy
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: wavy
      app.kubernetes.io/component: webhook-server
  template:
    metadata:
      labels:
        app.kubernetes.io/name: wavy
        app.kubernetes.io/component: webhook-server
    spec:
      securityContext:
        runAsNonRoot: true
        runAsUser: 1000
      containers:
      - name: webhook
        image: ghcr.io/wavyland/wavy
        imagePullPolicy: IfNotPresent
        args:
        - webhook
        - --certificate=/run/secrets/tls/tls.crt
        - --key=/run/secrets/tls/tls.key
        - --listen-metrics=:9090
        - --listen=:8443
        ports:
        - containerPort: 8443
          name: webhook
        - containerPort: 9090
          name: metrics
        volumeMounts:
        - name: tls
          mountPath: /run/secrets/tls
          readOnly: true
      volumes:
      - name: tls
        secret:
          secretName: wavy-webhook-tls
---
apiVersion: v1
kind: Service
metadata:
  name: wavy-webhook
  namespace: wavy
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
spec:
  selector:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
  ports:
    - port: 443
      targetPort: webhook
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: wavy-webhook
  namespace: wavy
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: wavy-webhook
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
rules:
- apiGroups:
  - admissionregistration.k8s.io
  resources:
  - mutatingwebhookconfigurations
  resourceNames:
  - wavy.squat.ai
  verbs:
  - get
  - update
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: wavy-webhook
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: wavy-webhook
subjects:
  - kind: ServiceAccount
    namespace: wavy
    name: wavy-webhook
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: wavy-webhook
  namespace: wavy
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
rules:
- apiGroups:
  - ""
  resources:
  - secrets
  verbs:
  - get
  - create
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: wavy-webhook
  namespace: wavy
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: webhook-server
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: wavy-webhook
subjects:
  - kind: ServiceAccount
    namespace: wavy
    name: wavy-webhook
---
apiVersion: batch/v1
kind: Job
metadata:
  name: cert-gen
  namespace: wavy
  labels:
    app.kubernetes.io/name: wavy
    app.kubernetes.io/component: certificate-generator
spec:
  template:
    spec:
      serviceAccountName: wavy-webhook
      initContainers:
      - name: create
        image: k8s.gcr.io/ingress-nginx/kube-webhook-certgen:v1.0
        args:
        - create
        - --namespace=wavy
        - --secret-name=wavy-webhook-tls
        - --host=wavy-webhook,wavy-webhook.wavy.svc
        - --key-name=tls.key
        - --cert-name=tls.crt
      containers:
      - name: patch
        image: k8s.gcr.io/ingress-nginx/kube-webhook-certgen:v1.0
        args:
        - patch
        - --webhook-name=wavy.squat.ai
        - --secret-name=wavy-webhook-tls
        - --namespace=wavy
        - --patch-validating=false
      restartPolicy: OnFailure
  backoffLimit: 4