deploy.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: version-checker
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: version-checker
  namespace: version-checker
---
apiVersion: v1
kind: Service
metadata:
  name: version-checker
  namespace: version-checker
  labels:
    app: version-checker
spec:
  selector:
    app: version-checker
  ports:
    - protocol: TCP
      name: web
      port: 8080
      targetPort: 8080
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: version-checker
  name: version-checker
  namespace: version-checker
spec:
  replicas: 1
  selector:
    matchLabels:
      app: version-checker
  template:
    metadata:
      labels:
        app: version-checker
      annotations:
        prometheus.io/path: /metrics
        prometheus.io/port: "8080"
        prometheus.io/scrape: "true"
        enable.version-checker.io/version-checker: "true"
    spec:
      serviceAccountName: version-checker
      containers:
      - image: quay.io/jetstack/version-checker:v0.8.0
        imagePullPolicy: Always
        ports:
        - containerPort: 8080
        name: version-checker
        command: ["version-checker"]
        livenessProbe:
          httpGet:
            path: /readyz
            port: 8080
          initialDelaySeconds: 3
          periodSeconds: 3
        readinessProbe:
          httpGet:
            path: /readyz
            port: 8080
          initialDelaySeconds: 3
          periodSeconds: 3
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: version-checker
rules:
- apiGroups: [""]
  resources: ["pods"]
  verbs: ["get", "watch", "list"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: version-checker
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: version-checker
subjects:
- kind: ServiceAccount
  name: version-checker
  namespace: version-checker