Prueba sencilla de microk8s con una imagen de Spark

README.md

Instrucciones

1  mkdir project
2  cd project
3  nano app.yaml
4  nano store-ssl-cert.sh
5  nano create-secret.sh
6  nano server.key
7  nano server.crt
8  chmod 700 *.sh
9  echo "-------------------------"
10  sudo apt update
11  sudo snap install microk8s --classic
12  sudo usermod -a -G microk8s ubuntu
13  exit
14  microk8s enable dns ingress registry storage
15  echo "-------------------------"
16  ./create-secret.sh 
17  ./store-ssl-cert.sh 
18  microk8s kubectl apply -f app.yaml
19  microk8s kubectl get pods -A

Files store-ssl-cert.sh AND create-secret.sh resp:

microk8s kubectl create secret tls hello-app-tls \
    --namespace default \
    --key server.key \
    --cert server.crt
    
microk8s kubectl create secret docker-registry goose-github \
    --docker-server=ghcr.io \
    --docker-username=miguel-hidalgo \
    --docker-password=ghp_xxxxxxxxxxxxxxxxxxxxxxxxxxx \
    --docker-email=mike@gmail.com

Nota para usuarios de LetsEncrypt:

• usar en vez de server.key el archivo private.key de letsEncrypt
• y usar en vez de server.crt el archivo cert.pem de LetsEncrypt

gistfile1.txt

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: demo-microk8s-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  tls:
  - hosts:
    - access.pbits.mx
    secretName: hello-app-tls
  rules:
  - host: access.qbits.mx
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: demo-microk8s
            port:
              number: 9999
  ingressClassName: nginx
---
kind: Service
apiVersion: v1
metadata:
  name: demo-microk8s
  labels:
    app: demo-microk8s
spec:
  type: ClusterIP
  selector:
    app: demo-microk8s
  ports:
    - port: 9999
      targetPort: 9999
      name: http
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo-microk8s
  labels:
    app: demo-microk8s
spec:
  selector:
    matchLabels:
      octopusexport: OctopusExport
  replicas: 5
  strategy:
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: demo-microk8s
        octopusexport: OctopusExport
    spec:
      imagePullSecrets:
      - name: goose-github
      containers:
        - name: demo-microk8s
          image: ghcr.io/qbits-mx/dockerized-access:latest
          env:
            - name: SPC
              value: https://config.qbits.mx
          imagePullPolicy: Always
          ports:
            - name: http
              containerPort: 9999
              protocol: TCP