deployment.yml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: inovex-webhook
  namespace: default
  labels:
    app: inovex-webhook
spec:
  replicas: 1
  selector:
    matchLabels:
      app: inovex-webhook
  template:
    metadata:
      labels:
        app: inovex-webhook
    spec:
      containers:
        - name: inovex-webhook
          image: webhooktest:0.1.0
          imagePullPolicy: IfNotPresent
          volumeMounts:
            - name: webhook-certs
              mountPath: /etc/certs
          resources:
            limits:
              memory: "128Mi"
              cpu: "100m"
          securityContext:
            readOnlyRootFilesystem: true
          ports:
            - containerPort: 8443
      volumes:
        - name: webhook-certs
          secret:
            secretName: inovex-webhook-certs
---
apiVersion: v1
kind: Service
metadata:
  name: inovex-webhook
  namespace: default
  labels:
    app: inovex-webhook
spec:
  selector:
    app: inovex-webhook
  ports:
  - name: webhook
    port: 8443
    targetPort: 8443

---
apiVersion: admissionregistration.k8s.io/v1
kind: MutatingWebhookConfiguration
metadata:
  name: inovex-webhook-mutate
webhooks:
  - name: webhook-mutate.inovex.io
    clientConfig:
      service:
        name: inovex-webhook
        namespace: default
        path: "/mutate"
        port: 8443
      caBundle: "$CA_BUNDLE"
    rules:
      - operations: ["CREATE","UPDATE"]
        apiGroups: ["apps"]
        apiVersions: ["v1"]
        resources: ["deployments"]
        scope: "*"
    failurePolicy: Fail
    admissionReviewVersions: ["v1"]
    sideEffects: None
    timeoutSeconds: 10
---
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingWebhookConfiguration
metadata:
  name: inovex-webhook-validate
webhooks:
  - name: webhook-validate.inovex.io
    clientConfig:
      service:
        name: inovex-webhook
        namespace: default
        path: "/validate"
        port: 8443
      caBundle: "$CA_BUNDLE"
    rules:
      - operations: ["CREATE","UPDATE"]
        apiGroups: ["apps"]
        apiVersions: ["v1"]
        resources: ["deployments"]
        scope: "*"
    failurePolicy: Fail
    admissionReviewVersions: ["v1"]
    sideEffects: None
    timeoutSeconds: 10