cloudbuild.yaml

steps:
## Set build tag and write to file _TAG
- name: 'ubuntu'
  args: ['bash', '-c', 'date -u +%Y%m%dT%H%M_$SHORT_SHA > _TAG']
        
##gradle build
- name: gcr.io/cloud-builders/gradle
  args: ['bootJar']
  
##docker build
- name: gcr.io/cloud-builders/docker
  entrypoint: sh
  args: ['-c', 'docker build -t asia.gcr.io/note-project-243400/note-server:$(cat _TAG) .']

##docker push
- name: gcr.io/cloud-builders/docker
  entrypoint: sh
  args: ['-c', 'docker push asia.gcr.io/note-project-243400/note-server:$(cat _TAG)']
  
##kubctl deploy
- name: gcr.io/cloud-builders/kubectl
  entrypoint: bash
  args: 
  - '-c'
  - |
    gcloud container clusters get-credentials note-project-cluster --project="note-project-243400" --zone="asia-northeast2-c"
    kubectl set image deployment/note-server-node-deploy note-server=asia.gcr.io/note-project-243400/note-server:$(cat _TAG)
  env:
  - 'CLOUDSDK_COMPUTE_ZONE=asia-northeast2-c'
  - 'CLOUDSDK_CONTAINER_CLUSTER=note-project-cluster'