Sign and verify container images

.github/workflows/ci.yaml

@@ -11,10 +11,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v5
         with:
           go-version: 1.20.4
 

.github/workflows/runner.yaml

@@ -11,7 +11,7 @@ jobs:
       issues: write
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Generate latest release information
       run: |

.github/workflows/scorecard.yml

@@ -0,0 +1,73 @@
+# This workflow uses actions that are not certified by GitHub. They are provided
+# by a third-party and are governed by separate terms of service, privacy
+# policy, and support documentation.
+
+name: Scorecard supply-chain security
+on:
+  # For Branch-Protection check. Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '19 7 * * 1'
+  push:
+    branches: [ "main" ]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+      # Uncomment the permissions below if installing in a private repository.
+      # contents: read
+      # actions: read
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736 # v2.3.1
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # (Optional) "write" PAT token. Uncomment the `repo_token` line below if:
+          # - you want to enable the Branch-Protection check on a *public* repository, or
+          # - you are installing Scorecard on a *private* repository
+          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action?tab=readme-ov-file#authentication-with-fine-grained-pat-optional.
+          # repo_token: ${{ secrets.SCORECARD_TOKEN }}
+
+          # Public repositories:
+          #   - Publish results to OpenSSF REST API for easy access by consumers
+          #   - Allows the repository to include the Scorecard badge.
+          #   - See https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories:
+          #   - `publish_results` will always be set to `false`, regardless
+          #     of the value entered here.
+          publish_results: true
+
+      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
+      # format to the repository Actions tab.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@97a0fba1372883ab732affbe8f94b823f91727db # v3.pre.node20
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard (optional).
+      # Commenting out will disable upload of results to your repo's Code Scanning dashboard
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif

.github/workflows/sign-release.yaml

@@ -0,0 +1,54 @@
+name: Sign and release the container image
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+
+    permissions:
+      id-token: write
+      contents: read
+      packages: write
+
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checkout code
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      # Set up Docker Buildx
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      # Step 3: Log in to GitHub Container Registry
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Step 4: Build and push Docker image
+      - name: Read version from file
+        id: get_version
+        run: echo "version=$(cat VERSION)" >> $GITHUB_ENV
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ghcr.io/${{ github.repository }}:${{ env.version }}
+
+      # Step 5: Get the latest release of cosign github action
+      - uses: sigstore/cosign-installer@v3.7.0
+
+      # Step 6: Use GitHub's OIDC token
+      - name: Keyless sign the Docker image
+        run: |
+          version=${{ env.version }}
+          cosign sign --yes ghcr.io/${{ github.repository }}:${{ env.version }} \
+            --oidc-issuer https://token.actions.githubusercontent.com

.github/workflows/verify-release.yaml

@@ -0,0 +1,31 @@
+name: Verify signed container image
+
+on:
+  workflow_dispatch:
+    inputs:
+      releaseVersion:
+        description: 'Release Version'
+        required: true
+        default: "1.0"
+        type: string
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checkout code
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      # Step 2: Get the latest release of cosign github action
+      - uses: sigstore/cosign-installer@v3.7.0
+
+      # Step 3: Verify the container image
+      - name: Verifying the signed image
+        env:
+          version: "${{ github.event.inputs.releaseVersion }}"
+        run: |
+          cosign verify ghcr.io/${{ github.repository }}:${version} \
+            --certificate-oidc-issuer https://token.actions.githubusercontent.com \
+            --certificate-identity "https://github.com/${{ github.repository }}/.github/workflows/sign-release.yaml@refs/heads/main"

.gitignore

@@ -1,2 +1,3 @@
 .idea
+.DS_Store
 github-issue-schedule

README.md

@@ -1,5 +1,7 @@
 # GitHub Issue Schedule
 
+![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/arsulegai/github-issue-schedule/badge)
+
 Create issues to project repositories as per the scheduled
 configuration.