♻️ Add automated test pipeline and changes to the readme

.github/workflows/test-check-version-pinning.yml

@@ -0,0 +1,35 @@
+name: Test Check Version Pinning
+
+on:
+  push:
+    paths:
+      - "check-version-pinning/**"
+  pull_request:
+    paths:
+      - "check-version-pinning/**"
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          fetch-depth: 0 # Ensures complete history for relevant analysis
+
+      - name: Set up Python
+        uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
+        with:
+          python-version: "3.11"
+          cache: "pip"
+
+      - name: Install dependencies
+        run: |
+          cd check-version-pinning
+          pip install -r requirements.txt
+
+      - name: Run Tests
+        run: |
+          cd check-version-pinning
+          python -m unittest discover -s . -p 'test_*.py'

README.md

@@ -1,6 +1,6 @@
 # Github Actions
 
-[![repo standards badge](https://img.shields.io/endpoint?labelColor=231f20&color=005ea5&style=for-the-badge&label=MoJ%20Compliant&url=https%3A%2F%2Foperations-engineering-reports.cloud-platform.service.justice.gov.uk%2Fapi%2Fv1%2Fcompliant_public_repositories%2Fendpoint%2Fgithub-actions&logo=data:image/png;base64,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)](https://operations-engineering-reports.cloud-platform.service.justice.gov.uk/public-github-repositories.html#github-actions)
+[![repo standards badge](https://img.shields.io/endpoint?labelColor=231f20&color=005ea5&style=for-the-badge&label=MoJ%20Compliant&url=https%3A%2F%2Foperations-engineering-reports.cloud-platform.service.justice.gov.uk%2Fapi%2Fv1%2Fcompliant_public_repositories%2Fendpoint%2Fgithub-actions&logo=data:image/png;base64,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)](https://operations-engineering-reports-prod.cloud-platform.service.justice.gov.uk/public-report/github-actions)
 
 A collection of GitHub Actions.
 
@@ -13,6 +13,7 @@ A collection of GitHub Actions.
 | [terraform-static-analysis](terraform-static-analysis)           | Runs TFSec, Checkov and TFlint against Terraform                 |
 | [setup-container-structure-test](setup-container-structure-test) | Installs Google's Container Structure Test                       |
 | [slack-github-secret-scanning-integration](slack-github-secret-scanning-integration) | A Github Action to get alerts from github secret scanning and send them to Slack                       |
+| [check-version-pinning](check-version-pinning) | Scans your workflow files to ensure all GitHub Actions are securely pinned to a SHA hash, rather than a version tag (`@v`).                       |
 
 <!-- markdownlint-enable MD013 -->
 

check-version-pinning/README.md

@@ -1,32 +1,87 @@
 # Check Version Pinning GitHub Action
 
-This Action scans your workflow files for untrusted GitHub Actions that are pinned to a version (`@v`) rather than a SHA hash.
+This GitHub Action scans your workflow files to ensure all GitHub Actions are securely pinned to a SHA hash, rather than a version tag (`@v`). Using SHA pinning aligns with best practices to protect against unintended changes in third-party actions.
+
+## Purpose
+
+According to GitHub's security guidance, third-party actions should be pinned to a commit hash rather than a version tag for enhanced security. For instance, prefer this format:
+```yaml
+uses: oxsecurity/megalinter/flavors/python@32c1b3827a334c80026c654f31ee1b4801ad8798
+```
+over:
+```yaml
+uses: oxsecurity/megalinter/flavors/python@v1
+```
+
+This Action inspects workflows to detect and report any actions that are not SHA-pinned, helping to secure your CI/CD pipeline.
+
+## Features
+
+- Simple SHA Check: This Action scans workflows based on the string after the @ symbol to verify SHA pinning.
+
+- Targeted Organisations: No organisations are treated as implicitly trusted, ensuring that all third-party actions must be SHA-pinned without exceptions.
+
+- Customisable Scanning Modes: Run a full scan of your repository or focus on changes within a pull request.
+
 
 ## Inputs
 
-### `workflow_directory`
-The directory to scan for workflow files. Default is `.github/workflows`.
+`workflow_directory`
+
+Specifies the directory to scan for workflow files. Defaults to .github/workflows if not set.
+
+`scan_mode`
+
+Defines the scope of the scan:
 
-### `scan_mode`
-The type of scan you wish to undertake:
-- full = the whole repository.
-- pr_changes = only changes in a pr.
+- full: Scans all workflows in the specified directory.
+- pr_changes: Scans only changes within a pull request (PR).
 
 ## Outputs
 
-### `found_unpinned_actions`
-A boolean indicating if any unpinned actions were found.
+Provides a list of any unpinned actions detected in the repository.
 
-## Example usage
+## Example Usage
+
+Here's a typical workflow setup that uses this Action to enforce SHA pinning on actions:
 ```yaml
+name: 🧪 Check Version Pinning
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
 jobs:
   check-version-pinning:
     runs-on: ubuntu-latest
+
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          fetch-depth: 0  # Disable shallow clones for a more comprehensive scan
+
       - name: Check for unpinned Actions
-        uses: ministryofjustice/check-version-pinning-action@6b42224f41ee5dfe5395e27c8b2746f1f9955030 # v1.0.0
+        uses: ministryofjustice/github-actions/check-version-pinning@ccf9e3a4a828df1ec741f6c8e6ed9d0acaef3490 # v18.5.0
         with:
-          workflow_directory: ".github/workflows"
-          scan_mode: "pr_changes"  # Use "full" for a full repo scan
+          workflow_directory: ".github/workflows" # Or wherever your workflows are stored
+          scan_mode: "full"  # or "pr_changes" for PR-specific scans
 ```
+
+## Why This Action?
+
+We initially considered using actionlint but found it too restrictive for our use case. This Action is lightweight and focuses solely on verifying SHA pinning for third-party actions, making it simpler and more tailored to specific security needs.
+
+## Notes
+
+This Action will:
+
+- Flag any action with a version tag (e.g., @v1) rather than a SHA.
+
+- Not detect cases where third-party actions do not use semantic versioning or the v prefix in version tags.
+
+- Require all actions to be SHA-pinned, without any implicit trust for specific organisations like ministryofjustice or actions.
+
+By adding this Action to your workflows, you can ensure a more secure CI/CD setup that prevents accidental usage of unpinned or untrusted actions.