3.task_build_push_image.yaml

---
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: task-build-push
  namespace: tekton-pipelines
  description: Build and Push Image
spec:
  params:
  - name: pathToDockerFile
    description: The path to the dockerfile to build
    default: /workspace/workspace/Dockerfile
  - name: pathToContext
    description: The build context used by Kaniko (https://github.com/GoogleContainerTools/kaniko#kaniko-build-contexts)
    default: /workspace/workspace
  - name: imageTag
    description: Tag to apply to the built image (if not defined in pipelinerun)
    default: latest
  resources:
    inputs:
    - name: workspace
      type: git
    outputs:
    - name: builtImage
      type: image
  steps:
  - name: echo-vars # An example to debug parameters and variables
    image: alpine:3.11.5
    script: |
      #!/usr/bin/env sh
      echo Pipeline Variables -- '$(params.pathToDockerFile) $(params.pathToContext) $(resources.outputs.builtImage.url):$(params.imageTag)'
      echo Repository Contents
      ls -l $(params.pathToContext)
  - name: build-and-push
    image: gcr.io/kaniko-project/executor:v0.19.0
    env:
    - name: "DOCKER_CONFIG"
      value: "/tekton/home/.docker/"
    command:
    - /kaniko/executor
    args:
    - --dockerfile=$(params.pathToDockerFile)
    - --context=$(params.pathToContext)
    - --destination=$(resources.outputs.builtImage.url):$(params.imageTag)