cloud/gke/opsfile.yml

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version: '3'

vars:

env:
  KUBECONFIG:
    sh: |-
      if test -e $OPS_TMP/kubeconfig
      then echo $OPS_TMP/kubeconfig
      else echo ~/.kube/config
      fi

tasks:
  prereq:
    silent: true
    cmds:
    - test -n "$GKE_NAME" || die 'Please, configure GKE with "ops config gke"'
    - "gcloud --version || die 'You need to install and configure the gcloud tool before running this command.'"
    - |
      if ! gke-gcloud-auth-plugin 2>/dev/null >/dev/null
      then die "Please Install gke-gcloud-auth-plugin with 'gcloud components install gke-gcloud-auth-plugin'"
      fi
    - config GKE_PREREQ_OK="true"
    status:
    - config GKE_PREREQ_OK

  update-yaml:
    cmds:
    - curl -L https://github.com/cert-manager/cert-manager/releases/download/v1.11.0/cert-manager.yaml >cert-manager.yaml
    - curl -L "https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/cloud/deploy.yaml" >ingress-deploy.yaml

  kubeconfig:
    desc: extract kubeconfig to access
    silent: true
    cmds:
    - task: prereq
    - >
      gcloud container clusters 
      get-credentials $GKE_NAME --zone=$GKE_REGION
    - cp "$OPS_TMP/kubeconfig" "$OPS_TMP/gke-$GKE_NAME.kubeconfig"
  
    env:
      KUBECONFIG: 
        sh: echo $OPS_TMP/kubeconfig

  config:
    desc: configure a Google Kubernetes Engine cluster
    silent: true
    cmds:
    - $OPS config gke


  create:
    silent: true
    desc: create a Google Kubernetes Engine cluster
    env:
      KUBECONFIG: 
        sh: echo $OPS_TMP/kubeconfig
    cmds:
    - task: prereq
    - "gcloud auth login"
    - "gcloud config set project $GKE_PROJECT"
    - > 
      gcloud container clusters 
      describe "$GKE_NAME" --zone="$GKE_REGION" 2>/dev/null >/dev/null
      || gcloud container clusters 
      create "$GKE_NAME" --zone="$GKE_REGION"
      --machine-type="$GKE_VM"
      --disk-size="${GKE_DISK}GB"
      --num-nodes="$GKE_COUNT"
    - task: kubeconfig
    - task: ingress
    - task: certman

  delete:
    silent: true
    desc: delete aks cluster
    cmds:
    - echo "*** Deleting the $GKE_NAME cluster"
    - "gcloud auth login"
    - >
      gcloud container clusters 
      delete "$GKE_NAME" --zone="$GKE_REGION"

  certman: 
    cmds:
      - |
        if test -z "{{.DEL}}"
        then retry -t 1000 -m 1800 kubectl  --kubeconfig "$OPS_TMP/kubeconfig"  apply -f cert-manager.yaml
        else kubectl apply -f cert-manager.yaml
        fi

  ingress:
    cmds:
      - |
        if test -z "{{.DEL}}"
        then retry -t 1000 -m 1800 kubectl --kubeconfig "$OPS_TMP/kubeconfig" apply -f ingress-deploy.yaml
        else kubectl delete -f ingress-deploy.yaml
        fi

  lb:
    silent: true
    desc: show the load balancer
    cmds:
      - > 
        kubectl -n ingress-nginx get svc/ingress-nginx-controller  
        -o jsonpath='{.status.loadBalancer.ingress[0].ip}' 2>/dev/null
        || die "load balancer not found"
      - echo ""