apiVersion: tekton.dev/v1
kind: Task
metadata:
  name: docker-registry
spec:
  params:
    - name: subdirectory
      type: string
      description: Subdirectory within the repo where the source code is located
      default: ""

    - name: imageName
      description: Base image name with registry (e.g. registry.unbox-x.net/unbox-x-aisi-cron-app)
      type: string

    - name: tag
      description: Version tag to apply to the image (e.g. v0.2.0)
      type: string

    - name: dockerfile
      description: Path to Dockerfile
      type: string
      default: ./Dockerfile

    - name: context
      description: Build context path (relative to subdirectory)
      type: string
      default: .

  workspaces:
    - name: source
      description: Source code workspace

    - name: docker-auth
      description: Docker registry credentials (username + password)

  results:
    - name: imageUrl
      description: Final pushed image URL with tag (e.g. registry/app:v0.2.0)

  steps:
    - name: build-and-push
      image: alpine:3.21.3
      workingDir: /workspace/source
      env:
        - name: DOCKER_CONFIG
          value: /tekton/home/.docker
      script: |
        #!/bin/sh
        set -e

        echo "📦 Installing curl and tar..."
        apk add --no-cache curl tar

        if [ -n "$(params.subdirectory)" ]; then
          cd "$(params.subdirectory)"
        fi

        IMAGE="$(params.imageName):$(params.tag)"
        echo "📦 Using image: $IMAGE"
        echo -n "$IMAGE" > /tekton/results/imageUrl

        USERNAME=$(cat /workspace/docker-auth/username)
        PASSWORD=$(cat /workspace/docker-auth/password)
        REGISTRY=$(echo "$IMAGE" | cut -d/ -f1)

        echo "🔐 Writing Docker config for $REGISTRY..."
        mkdir -p "$DOCKER_CONFIG"
        cat > "$DOCKER_CONFIG/config.json" <<EOF
        {
          "auths": {
            "$REGISTRY": {
              "auth": "$(echo -n "$USERNAME:$PASSWORD" | base64)"
            }
          }
        }
        EOF

        echo "📥 Downloading Kaniko executor..."
        curl -sSL -o /kaniko.tar.gz https://github.com/GoogleContainerTools/kaniko/releases/download/v1.23.2/executor-linux-amd64.tar.gz
        mkdir -p /kaniko && tar -xzf /kaniko.tar.gz -C /kaniko
        chmod +x /kaniko/executor

        echo "🚀 Building and pushing image..."
        /kaniko/executor \
          --dockerfile="$(params.dockerfile)" \
          --context="$(params.context)" \
          --destination="$IMAGE" \
          --skip-tls-verify \
          --reproducible \
          --verbosity=info