Beispiele: Kubernetes-Einstieg für Docker-Kenner

2-first-deployment.yml

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-first-nginx-deployment
  labels:
    app: my-nginx
spec:
  replicas: 3
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 50%
      maxSurge: 1
  selector:
    matchLabels:
      app: my-nginx
  template:
    metadata:
      labels:
        app: my-nginx
    spec:
      containers:
        - name: nginx
          image: nginx:alpine
          ports:
            - containerPort: 80
          readinessProbe:
            httpGet:
              path: /index.html
              port: 80
            failureThreshold: 1
            periodSeconds: 10
---
apiVersion: v1
kind: Service
metadata:
  name: my-service
  namespace: default
spec:
  type: NodePort
  selector:
    app: my-nginx
  ports:
    - protocol: TCP
      nodePort: 30000
      port: 80
      targetPort: 80

config

# Beispiel ohne Zugangsdaten
apiVersion: v1
kind: Config
preferences: {}
clusters:
- cluster:
    certificate-authority-data: LS0tLS1C...
    server: https://1.2.3.4:6443
  name: cttest
- cluster:
    certificate-authority-data: LS0tLS1CRU...
    server: https://kubernetes.docker.internal:6443
  name: docker-desktop
contexts:
- context:
    cluster: cttest
    user: cttest
  name: cttest
- context:
    cluster: docker-desktop
    user: docker-desktop
  name: docker-desktop
users:
- name: cttest
  user:
    client-certificate-data: LS0tLS1...
    client-key-data: LS0tLS1C...
- name: docker-desktop
  user:
    client-certificate-data: LS0tLS...
    client-key-data: LS0tL...

first-pod.yml

---
apiVersion: v1
kind: Pod
metadata:
  name: my-first-nginx
  labels:
    app: my-nginx
spec:
  containers:
    - name: nginx
      image: nginx:alpine
      ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: my-service
  namespace: default
spec:
  type: NodePort
  selector:
    app: my-nginx
  ports:
    - protocol: TCP
      nodePort: 30000
      port: 80
      targetPort: 80