terraform-static-analysis.yml

name: Terraform Static Code Analysis

on:
  schedule:
    # * is a special character in YAML so you have to quote this string
    - cron:  '0 7 * * 1-5'
  workflow_dispatch:
  pull_request:
    branches:
      - main

permissions:
  contents: read

jobs:
  terraform-static-analysis:
    permissions:
      pull-requests: write
    name: Terraform Static Analysis
    runs-on: ubuntu-latest
    if: github.event_name != 'workflow_dispatch' && github.event_name != 'schedule'
    steps:
    - name: Checkout
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        fetch-depth: 0
    - name: Run Analysis
      uses: ministryofjustice/github-actions/terraform-static-analysis@8e3363c6e31a9f491705ef23d12ab167f1395e15 # v15.3.0
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        scan_type: changed
        trivy_severity: HIGH,CRITICAL
        trivy_ignore: ./.trivyignore.yaml
        checkov_exclude: CKV_GIT_1,CKV_AWS_126,CKV2_AWS_38,CKV2_AWS_39
        tflint_exclude: terraform_unused_declarations
        tflint_call_module_type: none
        tfsec_trivy: trivy

  terraform-static-analysis-full-scan:
    permissions:
      contents: read
      actions: read
      security-events: write
      pull-requests: write
    name: Terraform Static Analysis - scan all directories
    runs-on: ubuntu-latest
    if: github.event_name == 'workflow_dispatch'
    steps:
    - name: Checkout
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        fetch-depth: 0
    - name: Run Analysis
      uses: ministryofjustice/github-actions/terraform-static-analysis@258a945e4e1625849506c505d7c4236e6a4ad415 # v15.3.0
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        scan_type: full
        tfsec_trivy: trivy
        trivy_format: sarif
        trivy_severity: HIGH,CRITICAL
        trivy_ignore: ./.trivyignore.yaml
        tfsec_exclude: aws-ssm-secret-use-customer-key,github-repositories-private,aws-vpc-no-excessive-port-access,github-repositories-require-signed-commits
        checkov_exclude: CKV_GIT_1,CKV_AWS_126,CKV2_AWS_38,CKV2_AWS_39
        tflint_exclude: terraform_unused_declarations
        tflint_call_module_type: none

    - name: Upload Trivy scan results to GitHub Security tab
      if: success() || failure()
      uses: github/codeql-action/upload-sarif@cdcdbb579706841c47f7063dda365e292e5cad7a # v2.13.4
      with:
        sarif_file: 'trivy-results.sarif'

  terraform-static-analysis-scheduled-scan:
    name: Terraform Static Analysis - scheduled scan of all directories
    runs-on: ubuntu-latest
    if: github.event_name == 'schedule'
    steps:
    - name: Checkout
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        fetch-depth: 0
    - name: Run Analysis
      uses: ministryofjustice/github-actions/terraform-static-analysis@7f9f83f521bd1aa8dc22f1bc07e9bc1b7676f455 # v15.2.0
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        scan_type: full
        tfsec_trivy: trivy
        trivy_severity: HIGH,CRITICAL
        trivy_ignore: ./.trivyignore.yaml
        tfsec_exclude: aws-ssm-secret-use-customer-key,github-repositories-private,aws-vpc-no-excessive-port-access,github-repositories-require-signed-commits
        checkov_exclude: CKV_GIT_1,CKV_AWS_126,CKV2_AWS_38,CKV2_AWS_39
        tflint_exclude: terraform_unused_declarations
        tflint_call_module_type: none
    - name: Slack failure notification
      uses: slackapi/slack-github-action@6c661ce58804a1a20f6dc5fbee7f0381b469e001 # v1.25.0
      with:
        payload: |
          {"blocks":[{"type": "section","text": {"type": "mrkdwn","text": ":no_entry: Failed GitHub Action:"}},{"type": "section","fields":[{"type": "mrkdwn","text": "*Workflow:*\n<${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|${{ github.workflow }}>"},{"type": "mrkdwn","text": "*Job:*\n${{ github.job }}"},{"type": "mrkdwn","text": "*Repo:*\n${{ github.repository }}"}]}]}
      env:
        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
        SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
      if: ${{ failure() }}