[Nana Janashia] Logging in Kubernetes with EFK Stack : Запускаем image на kubernetes: Запускаем image на kubernetes


Делаю:
2024.04.14


Создаем NameSpace для приложений

$ kubectl create namespace apps


Create docker-registry secret for dockerHub


$ export DOCKER_REGISTRY_SERVER=docker.io
$ export DOCKER_USERNAME=<YOUR_DOCKERHUB_LOGIN>
$ export DOCKER_PASSWORD=<YOUR_DOCKERHUB_PASSWORD>

$ kubectl create secret docker-registry myregistrysecret -n apps \
    --docker-server=${DOCKER_REGISTRY_SERVER} \
    --docker-username=${DOCKER_USERNAME} \
    --docker-password=${DOCKER_PASSWORD}



$ kubectl get secret -n apps
NAME               TYPE                             DATA   AGE
myregistrysecret   kubernetes.io/dockerconfigjson   1      8s


Deploy


node-app


$ envsubst << 'EOF' | cat | kubectl create -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: node-app
  namespace: apps
  labels:
    app: node-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: node-app
  template:
    metadata:
      labels:
        app: node-app
    spec:
      containers:
        - name: node-app
          image: ${DOCKER_USERNAME}/node-1.0
          imagePullPolicy: Always
          ports:
            - containerPort: 3000
EOF


java-app


$ envsubst << 'EOF' | cat | kubectl create -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: java-app
  namespace: apps
  labels:
    app: java-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: java-app
  template:
    metadata:
      labels:
        app: java-app
    spec:
      containers:
        - name: java-app
          image: ${DOCKER_USERNAME}/java-1.0
          imagePullPolicy: Always
          ports:
            - containerPort: 8080
      imagePullSecrets:
        - name: myregistrysecret
EOF



$ kubectl get pods -n apps
NAME                        READY   STATUS    RESTARTS   AGE
java-app-c9458c656-j79jp   1/1     Running   0          25s
node-app-859cc5fcb-gl45n   1/1     Running   0          6m6s