apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: kustomize-set-image
spec:
  params:
  - name: imageDigest
    type: string
  - name: gitCurrentTag
    type: string
  - name: gitBranch
    type: string
  - name: imageName
    type: string
  - name: testManifestsDir
    type: string
  - name: prodManifestsDir
    type: string
  workspaces:
  - name: src
    mountPath: /src
  steps:
  - name: kustomize
    image: k8s.gcr.io/kustomize/kustomize
    workingDir: /src
    env:
    - name: HOME
      value: /home/tekton
    - name: GIT_CURRENT_TAG
      value: "$(params.gitCurrentTag)"
    - name: GIT_BRANCH
      value: "$(params.gitBranch)"
    - name: IMAGE_NAME
      value: "$(params.imageName)"
    - name: IMAGE_DIGEST
      value: "$(params.imageDigest)"
    - name: TEST_MANIFESTS_DIR
      value: "$(params.testManifestsDir)"
    - name: PROD_MANIFESTS_DIR
      value: "$(params.prodManifestsDir)"
    volumeMounts:
    - name: home
      mountPath: /home/tekton
    script: |
      #!/bin/sh
      set -euo pipefail
      echo "========================================================="
      echo " kustomize edit set image $IMAGE_NAME"
      echo "========================================================="
      echo
      if [ -n "$TEST_MANIFESTS_DIR" ]; then
        echo "Setting image tag to digest $IMAGE_DIGEST for environment test..."
        cd "$TEST_MANIFESTS_DIR"
        kustomize edit set image "$IMAGE_NAME@$IMAGE_DIGEST"
        cd -
        echo
      fi
      if [[ -n "$PROD_MANIFESTS_DIR" && -n "$GIT_CURRENT_TAG" ]]; then
        echo "Setting image tag to digest $IMAGE_DIGEST for environment prod..."
        cd "$PROD_MANIFESTS_DIR"
        kustomize edit set image "$IMAGE_NAME@$IMAGE_DIGEST"
        cd -
        echo
      fi
      echo
      exit 0
  - name: git-push
    image: docker.io/alpine/git
    workingDir: /src
    env:
    - name: HOME
      value: /home/tekton
    - name: GIT_CURRENT_TAG
      value: "$(params.gitCurrentTag)"
    - name: GIT_BRANCH
      value: "$(params.gitBranch)"
    - name: IMAGE_NAME
      value: "$(params.imageName)"
    - name: IMAGE_DIGEST
      value: "$(params.imageDigest)"
    - name: TEST_MANIFESTS_DIR
      value: "$(params.testManifestsDir)"
    - name: PROD_MANIFESTS_DIR
      value: "$(params.prodManifestsDir)"
    volumeMounts:
    - name: home
      mountPath: /home/tekton
    script: |
      #!/bin/sh
      set -euo pipefail
      git config --global user.email "nicolas.masse@itix.fr"
      git config --global user.name "GitOps Tekton Bot"
      echo "========================================================="
      echo " git add, commit & push"
      echo "========================================================="
      echo
      if [ -n "$TEST_MANIFESTS_DIR" ]; then
        git add "$TEST_MANIFESTS_DIR"
        git commit -m "deploy image $IMAGE_NAME@$IMAGE_DIGEST in test"
      fi
      if [[ -n "$PROD_MANIFESTS_DIR" && -n "$GIT_CURRENT_TAG" ]]; then
        git add "$PROD_MANIFESTS_DIR"
        git commit -m "deploy image $IMAGE_NAME@$IMAGE_DIGEST in prod"
      fi
      git push origin "HEAD:$GIT_BRANCH"
      exit 0
  volumes:
  - name: home
    emptyDir: {}