#Source Code Repository Verification

apiVersion: tekton.dev/v1
kind: Pipeline
metadata:
  name: chains-demo-3
spec:
  params:
    - default: |-
        echo "Simulate cloning the code and write the repository URL and commit message into the results."

        # This commit sha must be a valid commit sha [0-9a-f]{40}.
        cat << 'EOF' > $(results.array-result.path)
        [
          "https://github.com/tektoncd/pipeline",
          "cccccaaaa0000000000000000000000000000000"
        ]
        EOF

        echo -e "\nResults:"
        echo "-------------------"
        cat $(results.array-result.path)
        echo "-------------------"
        echo -e "\nClone successfully!"
      description: A script to simulate cloning the code and write the repository URL and commit message into the results.
      name: generate-git-clone-results
      type: string
    - default: |-
        echo "Generate a Dockerfile for building an image."

        cat << 'EOF' > Dockerfile
        FROM ubuntu:latest
        ENV TIME=1
        EOF

        echo -e "\nDockerfile contents:"
        echo "-------------------"
        cat Dockerfile
        echo "-------------------"
        echo -e "\nDockerfile generated successfully!"
      description: A script to generate a Dockerfile for building an image.
      name: generate-dockerfile
      type: string
    - default: <registry>/test/chains/demo-3:latest
      description: The target image address built
      name: image
      type: string
  results:
    - description: first image artifact output
      name: first_image_ARTIFACT_OUTPUTS
      type: object
      value:
        digest: $(tasks.build-image.results.IMAGE_DIGEST)
        uri: $(tasks.build-image.results.IMAGE_URL)
    - description: first repo artifact input
      name: source_repo_ARTIFACT_INPUTS
      type: object
      value:
        digest: sha1:$(tasks.git-clone.results.array-result[1])
        uri: $(tasks.git-clone.results.array-result[0])
  tasks:
    - name: git-clone
      params:
        - name: script
          value: $(params.generate-git-clone-results)
      taskRef:
        params:
          - name: kind
            value: task
          - name: catalog
            value: catalog
          - name: name
            value: run-script
          - name: version
            value: "0.1"
        resolver: hub
      timeout: 30m0s
      workspaces:
        - name: source
          workspace: source
    - name: generate-dockerfile
      params:
        - name: script
          value: $(params.generate-dockerfile)
      runAfter:
        - git-clone
      taskRef:
        params:
          - name: kind
            value: task
          - name: catalog
            value: catalog
          - name: name
            value: run-script
          - name: version
            value: "0.1"
        resolver: hub
      timeout: 30m0s
      workspaces:
        - name: source
          workspace: source
    - name: build-image
      params:
        - name: IMAGES
          value:
            - $(params.image)
        - name: TLS_VERIFY
          value: "false"
      runAfter:
        - generate-dockerfile
      taskRef:
        params:
          - name: kind
            value: task
          - name: catalog
            value: catalog
          - name: name
            value: buildah
          - name: version
            value: "0.9"
        resolver: hub
      timeout: 30m0s
      workspaces:
        - name: source
          workspace: source
        - name: dockerconfig
          workspace: dockerconfig
  workspaces:
    - name: source
      description: The workspace for source code.
    - name: dockerconfig
      description: The workspace for Docker configuration.

apiVersion: tekton.dev/v1
kind: PipelineRun
metadata:
  generateName: chains-demo-3-
spec:
  pipelineRef:
    name: chains-demo-3
  taskRunTemplate:
    serviceAccountName: <default>
  workspaces:
    - name: dockerconfig
      secret:
        secretName: <registry-credentials>
    - name: source
      volumeClaimTemplate:
        spec:
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 1Gi
          storageClassName: <nfs>

apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: verify-code-repository-material
spec:
  webhookConfiguration:
    failurePolicy: Fail
    timeoutSeconds: 30
  background: false
  rules:
    - name: check-image
      match:
        any:
          - resources:
              kinds:
                - Pod
              namespaces:
                - policy
      verifyImages:
        - imageReferences:
            - "*"
            # - "<registry>/test/*"
          skipImageReferences:
            - "ghcr.io/trusted/*"
          failureAction: Enforce
          verifyDigest: false
          required: false
          useCache: false
          imageRegistryCredentials:
            allowInsecureRegistry: true
            secrets:
              # The credential needs to exist in the namespace where kyverno is deployed
              - registry-credentials

          attestations:
            - type: https://slsa.dev/provenance/v0.2
              attestors:
                - entries:
                    - keys:
                        publicKeys: |- # <- The public key of the signer
                          -----BEGIN PUBLIC KEY-----
                          MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEFZNGfYwn7+b4uSdEYLKjxWi3xtP3
                          UkR8hQvGrG25r0Ikoq0hI3/tr0m7ecvfM75TKh5jGAlLKSZUJpmCGaTToQ==
                          -----END PUBLIC KEY-----

                        ctlog:
                          ignoreSCT: true

                        rekor:
                          ignoreTlog: true
              conditions:
                - all:
                    - key: "{{ buildType }}"
                      operator: Equals
                      value: "tekton.dev/v1beta1/PipelineRun"
                      message: "The buildType must be equal to tekton.dev/v1beta1/PipelineRun, not {{ buildType }}"

                    - key: "{{ materials[?starts_with(uri, 'https://github.com/tektoncd/')] | length(@) }}"
                      operator: GreaterThan
                      value: 0
                      message: "The materials must have at least one entry starts with https://github.com/tektoncd/, {{ materials }}"

conditions:
  - all:
      - key: "{{ buildType }}"
        operator: Equals
        value: "tekton.dev/v1beta1/PipelineRun"
        message: "The buildType must be equal to tekton.dev/v1beta1/PipelineRun, not {{ buildType }}"

      - key: "{{ materials[?starts_with(uri, 'https://gitlab.com/')] | length(@) }}"
        operator: GreaterThan
        value: 0
        message: "The materials must have at least one entry starts with https://gitlab.com/, {{ materials }}"