ci: add zizmor linter to better scrutinize github actions

.github/actions/container-size-diff/action.yml

@@ -18,14 +18,10 @@ outputs:
 runs:
   using: "composite"
   steps:
-    - run: echo "$GITHUB_ACTION_PATH" >> "$GITHUB_PATH"
-      shell: bash
-      env:
-        GITHUB_ACTION_PATH: ${{ github.action_path }}
     - run: |
         EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
         echo "markdown<<${EOF}" >> "${GITHUB_OUTPUT}"
-        echo "$(container-size-diff.sh ${INPUT_FROM_CONTAINER} ${INPUT_TO_CONTAINER})" >> "${GITHUB_OUTPUT}"
+        echo "$(${GITHUB_ACTION_PATH}/container-size-diff.sh ${INPUT_FROM_CONTAINER} ${INPUT_TO_CONTAINER})" >> "${GITHUB_OUTPUT}"
         echo "${EOF}" >> "${GITHUB_OUTPUT}"
       id: size-diff
       shell: bash

.github/actions/container-size-diff/container-size-diff.sh

@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+set -Eeuo pipefail
+
 FROM_CONTAINER=${1:?}
 TO_CONTAINER=${2:?}
 

.github/actions/update-apt-packages/action.yml

@@ -15,16 +15,12 @@ outputs:
 runs:
   using: "composite"
   steps:
-    - run: echo "$GITHUB_ACTION_PATH" >> "$GITHUB_PATH"
-      shell: bash
-      env:
-        GITHUB_ACTION_PATH: ${{ github.action_path }}
     - run: |
         apt-get update
         apt-get install --no-install-recommends -y jq
       shell: bash
     - run: |
-        update-apt-packages.sh ${INPUT_FILE}
+        ${GITHUB_ACTION_PATH}/update-apt-packages.sh ${INPUT_FILE}
         echo "updated-dependencies=$(cat updated-packages.json)" >> "${GITHUB_OUTPUT}"
         rm updated-packages.json
       id: update-extensions

.github/actions/update-vscode-extensions/action.yml

@@ -18,10 +18,6 @@ outputs:
 runs:
   using: "composite"
   steps:
-    - run: echo "$GITHUB_ACTION_PATH" >> "$GITHUB_PATH"
-      shell: bash
-      env:
-        GITHUB_ACTION_PATH: ${{ github.action_path }}
     - run: |
         sudo apt-get update
         sudo apt-get install --no-install-recommends -y jq
@@ -30,7 +26,7 @@ runs:
     - run: |
         EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
         echo "markdown-summary<<${EOF}" >> "${GITHUB_OUTPUT}"
-        echo "$(update-vscode-extensions.sh ${INPUT_FILE})" >> "${GITHUB_OUTPUT}"
+        echo "$(${GITHUB_ACTION_PATH}/update-vscode-extensions.sh ${INPUT_FILE})" >> "${GITHUB_OUTPUT}"
         echo "${EOF}" >> "${GITHUB_OUTPUT}"
 
         echo "updated-dependencies=$(cat updated-extensions.json)" >> "${GITHUB_OUTPUT}"

.github/linters/.trivyignore.yml

@@ -0,0 +1,15 @@
+---
+misconfigurations:
+  - id: AVD-DS-0002
+    statement: We allow root access in our container that we use for development purposes (https://avd.aquasec.com/misconfig/dockerfile/general/avd-ds-0002/)
+vulnerabilities:
+  - id: CVE-2025-50181
+    paths:
+      - ".devcontainer/cpp/requirements.txt"
+    expired_at: 2025-10-01
+    statement: This vulnerable dependency comes in via the Conan package, work is in-progress on supporting a non-vulnerable version (https://github.com/conan-io/conan/issues/13948)
+  - id: CVE-2025-50182
+    paths:
+      - ".devcontainer/cpp/requirements.txt"
+    expired_at: 2025-10-01
+    statement: This vulnerable dependency comes in via the Conan package, work is in-progress on supporting a non-vulnerable version (https://github.com/conan-io/conan/issues/13948)

.github/workflows/linting-formatting.yml

@@ -28,6 +28,7 @@ jobs:
         with:
           fetch-depth: 0
           persist-credentials: false
+      - uses: zizmorcore/zizmor-action@f52a838cfabf134edcbaa7c8b3677dde20045018 # v0.1.1
       # flavors/dotnet is the smallest flavor of MegaLinter that contains the linters
       # we are interested in.
       - uses: oxsecurity/megalinter/flavors/dotnet@e08c2b05e3dbc40af4c23f41172ef1e068a7d651 # v8.8.0

.github/workflows/release-build.yml

@@ -26,52 +26,67 @@ jobs:
       id-token: write
       packages: write
       pull-requests: write
+    with:
+      # Disable the cache for release builds
+      enable-cache: false
   apply-release-notes-template:
     runs-on: ubuntu-latest
     steps:
       - uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
         with:
           egress-policy: audit
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
       - name: Amend release description
-        env:
-          GITHUB_TOKEN: ${{ github.token }}
         run: |
-          CURRENT_NOTES=$(gh release view ${{ github.ref_name }} --json body -q '.body')
+          set -Eeuo pipefail
+          CURRENT_NOTES=$(gh release view "${REF_NAME}" --json body -q '.body')
           HEADER=$(echo "$CURRENT_NOTES" | awk '/^## / {print; exit}')
           TEMPLATE=$(cat "$GITHUB_WORKSPACE/.github/RELEASE_TEMPLATE.md")
           BODY=$(echo "$CURRENT_NOTES" | sed "0,/^## /d")
-          gh release edit ${{ github.ref_name }} --notes "${HEADER}${TEMPLATE}${BODY}"
+          gh release edit "${REF_NAME}" --notes "${HEADER}${TEMPLATE}${BODY}"
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+          REF_NAME: ${{ github.ref_name }}
   update-release-notes:
     strategy:
       matrix:
         flavor: [cpp, rust]
     runs-on: ubuntu-latest
-    needs: build-push-test
+    needs: [build-push-test, apply-release-notes-template]
     env:
+      CONTAINER_FLAVOR: ${{ matrix.flavor }}
+      REF_NAME: ${{ github.ref_name }}
       REGISTRY: ghcr.io
     steps:
-      - uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+      - uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
         with:
           egress-policy: audit
       - name: Inspect manifest and extract digest
         id: inspect-manifest
         run: |
           set -Eeuo pipefail
-          output=$(docker buildx imagetools inspect ${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}:${{ github.ref_name }} --format '{{json .}}')
+          output=$(docker buildx imagetools inspect "${REGISTRY}/${{ github.repository }}-${CONTAINER_FLAVOR}:${REF_NAME}" --format '{{json .}}')
           echo "digest=$(echo "$output" | jq -r '.manifest.digest // .manifests[0].digest')" >> "$GITHUB_OUTPUT"
       - name: Upload provenance to release
+        run: |
+          set -Eeuo pipefail
+          FORMATTED_DIGEST=${DIGEST//:/_}
+          gh attestation verify --repo ${{ github.repository }} "oci://${REGISTRY}/${{ github.repository }}-${CONTAINER_FLAVOR}@${DIGEST}" --format json --jq '.[] | .attestation.bundle.dsseEnvelope | select(.payloadType == "application/vnd.in-toto+json").payload' | base64 -d | jq . > "${REPOSITORY_OWNER}-${REPOSITORY_NAME}-${CONTAINER_FLAVOR}_${FORMATTED_DIGEST}.intoto.jsonl"
+          gh release upload "${REF_NAME}" ./*.intoto.jsonl
         env:
+          DIGEST: ${{ steps.inspect-manifest.outputs.digest }}
           GH_TOKEN: ${{ github.token }}
-        run: |
-          RAW_SHA=${{ steps.inspect-manifest.outputs.digest }}
-          FORMATTED_SHA=${RAW_SHA//:/_}
-          gh attestation verify --repo ${{ github.repository }} oci://${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}@${{ steps.inspect-manifest.outputs.digest }} --format json --jq '.[] | .attestation.bundle.dsseEnvelope | select(.payloadType == "application/vnd.in-toto+json").payload' | base64 -d | jq . > "${{ github.repository_owner }}-${{ github.event.repository.name }}-${{ matrix.flavor }}_${FORMATTED_SHA}.intoto.jsonl"
-          gh release upload ${{ github.ref_name }} ./*.intoto.jsonl
+          REPOSITORY_OWNER: ${{ github.repository_owner }}
+          REPOSITORY_NAME: ${{ github.event.repository.name }}
       - name: Update package details in release
+        run: |
+          set -Eeuo pipefail
+          UPDATED_NOTES=$(gh release view "${REF_NAME}" --json body -q '.body')
+          UPDATED_NOTES=${UPDATED_NOTES//"{{ amp-devcontainer-${CONTAINER_FLAVOR}-version }}"/"${REF_NAME}"}
+          UPDATED_NOTES=${UPDATED_NOTES//"{{ amp-devcontainer-${CONTAINER_FLAVOR}-sha }}"/"${DIGEST}"}
+          gh release edit "${REF_NAME}" --notes "${UPDATED_NOTES}"
         env:
+          DIGEST: ${{ steps.inspect-manifest.outputs.digest }}
           GH_TOKEN: ${{ github.token }}
-        run: |
-          UPDATED_NOTES=$(gh release view ${{ github.ref_name }} --json body -q '.body')
-          UPDATED_NOTES=${UPDATED_NOTES//'{{ amp-devcontainer-${{ matrix.flavor }}-version }}'/'${{ github.ref_name }}'}
-          UPDATED_NOTES=${UPDATED_NOTES//'{{ amp-devcontainer-${{ matrix.flavor }}-sha }}'/'${{ steps.inspect-manifest.outputs.digest }}'}
-          gh release edit ${{ github.ref_name }} --notes "${UPDATED_NOTES}"

.github/workflows/wc-acceptance-test.yml

@@ -39,8 +39,9 @@ jobs:
             gh secret set -a codespaces IMAGE_VERSION --body "edge"
           fi
 
-          echo CODESPACE_NAME="$(gh codespace create -R "${{ github.repository }}" -b "$HEAD_REF" -m basicLinux32gb --devcontainer-path ".devcontainer/${{ inputs.flavor }}-test/devcontainer.json" --idle-timeout 10m --retention-period 1h)" >> "$GITHUB_ENV"
+          echo CODESPACE_NAME="$(gh codespace create -R "${{ github.repository }}" -b "$HEAD_REF" -m basicLinux32gb --devcontainer-path ".devcontainer/${CONTAINER_FLAVOR}-test/devcontainer.json" --idle-timeout 10m --retention-period 1h)" >> "$GITHUB_ENV"
         env:
+          CONTAINER_FLAVOR: ${{ inputs.flavor }}
           GH_TOKEN: ${{ secrets.TEST_GITHUB_TOKEN }}
           HEAD_REF: ${{ github.head_ref }}
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
@@ -56,7 +57,7 @@ jobs:
           SECONDS_ELAPSED=0
 
           while true; do
-            STATE=$(gh codespace list --json name,state --jq ".[] | select(.name == \"$CODESPACE_NAME\") | .state")
+            STATE=$(gh codespace list --json name,state --jq ".[] | select(.name == \"${CODESPACE_NAME}\") | .state")
             echo "Current state: $STATE"
             if [ "$STATE" == "Available" ]; then
               echo "Codespace is active!"
@@ -71,8 +72,9 @@ jobs:
           done
         env:
           GH_TOKEN: ${{ secrets.TEST_GITHUB_TOKEN }}
-      - run: cd test/${{ inputs.flavor }}/features && npm test
+      - run: cd "test/${CONTAINER_FLAVOR}/features" && npm test
         env:
+          CONTAINER_FLAVOR: ${{ inputs.flavor }}
           GITHUB_USER: ${{ secrets.TEST_GITHUB_USER }}
           GITHUB_PASSWORD: ${{ secrets.TEST_GITHUB_PASSWORD }}
           GITHUB_TOTP_SECRET: ${{ secrets.TEST_GITHUB_TOTP_SECRET }}
@@ -85,7 +87,7 @@ jobs:
           retention-days: 10
       - run: |
           set -Eeuo pipefail
-          gh codespace delete --force --codespace "$CODESPACE_NAME"
+          gh codespace delete --force --codespace "${CODESPACE_NAME}"
           gh secret set -a codespaces IMAGE_VERSION --body "latest"
         if: always()
         env:

.github/workflows/wc-build-push-test.yml

@@ -3,6 +3,11 @@ name: Build, Push & Test
 
 on:
   workflow_call:
+    inputs:
+      enable-cache:
+        required: false
+        type: boolean
+        default: true
 
 permissions:
   contents: read
@@ -13,7 +18,6 @@ jobs:
       matrix:
         flavor: [cpp, rust]
     uses: ./.github/workflows/wc-build-push.yml
-    secrets: inherit
     permissions:
       actions: read
       attestations: write
@@ -23,6 +27,7 @@ jobs:
       pull-requests: write
     with:
       flavor: ${{ matrix.flavor }}
+      enable-cache: ${{ inputs.enable-cache }}
 
   dependency-review:
     runs-on: ubuntu-latest

.github/workflows/wc-build-push.yml

@@ -7,11 +7,16 @@ on:
       flavor:
         required: true
         type: string
+      enable-cache:
+        required: false
+        type: boolean
+        default: true
 
 permissions:
   contents: read
 
 env:
+  CONTAINER_FLAVOR: ${{ inputs.flavor }}
   REGISTRY: ghcr.io
 
 jobs:
@@ -43,7 +48,7 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ github.repository }}-${{ inputs.flavor }}
       # Generate image LABEL for devcontainer.metadata
       # the sed expression is a workaround for quotes being eaten in arrays (e.g. ["x", "y", "z"] -> ["x",y,"z"])
-      - run: echo "metadata=$(jq -cj '[.]' .devcontainer/${{ inputs.flavor }}/devcontainer-metadata-vscode.json | sed 's/,"/, "/g')" >> "$GITHUB_OUTPUT"
+      - run: echo "metadata=$(jq -cj '[.]' ".devcontainer/${CONTAINER_FLAVOR}/devcontainer-metadata-vscode.json" | sed 's/,"/, "/g')" >> "$GITHUB_OUTPUT"
         id: devcontainer-metadata
       - run: echo "git-commit-epoch=$(git log -1 --pretty=%ct)" >> "$GITHUB_OUTPUT"
         id: devcontainer-epoch
@@ -63,13 +68,15 @@ jobs:
           annotations: ${{ steps.metadata.outputs.annotations }}
           sbom: true
           outputs: type=image,push-by-digest=true,name-canonical=true
-          cache-to: type=gha,mode=max,scope=${{ github.repository }}-${{ inputs.flavor }}-${{ matrix.runner }}
-          cache-from: type=gha,scope=${{ github.repository }}-${{ inputs.flavor }}-${{ matrix.runner }}
+          cache-to: ${{ inputs.enable-cache && format('type=gha,mode=max,scope={0}-{1}-{2}', github.repository, inputs.flavor, matrix.runner) || '' }}
+          cache-from: ${{ inputs.enable-cache && format('type=gha,scope={0}-{1}-{2}', github.repository, inputs.flavor, matrix.runner) || '' }}
       - name: Export digest
         run: |
+          set -Eeuo pipefail
           mkdir -p ${{ runner.temp }}/digests
-          digest="${{ steps.build-and-push.outputs.digest }}"
-          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+          touch "${{ runner.temp }}/digests/${DIGEST#sha256:}"
+        env:
+          DIGEST: ${{ steps.build-and-push.outputs.digest }}
       - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: digests-${{ inputs.flavor }}-${{ steps.devcontainer-arch.outputs.arch }}
@@ -123,15 +130,13 @@ jobs:
             type=semver,pattern={{major}}.{{minor}}
             type=semver,pattern={{major}}
       - name: Create manifest list and push
-        working-directory: ${{ runner.temp }}/digests
-        shell: python
         run: |
           import os
           import json
           import subprocess
 
-          CONTAINER = '${{ env.REGISTRY }}/${{ github.repository }}-${{ inputs.flavor }}'
-          METADATA = json.loads('${{ steps.metadata.outputs.json }}')
+          CONTAINER = f"{os.getenv('REGISTRY')}/${{ github.repository }}-{os.getenv('CONTAINER_FLAVOR')}"
+          METADATA = json.loads(os.getenv('METADATA_JSON'))
 
           digests = [f for f in os.listdir('.') if f.startswith('sha256:') or len(f) == 64]
 
@@ -143,12 +148,18 @@ jobs:
 
           print(' '.join(command))
           subprocess.run(command, check=True)
+        env:
+          METADATA_JSON: ${{ steps.metadata.outputs.json }}
+        shell: python
+        working-directory: ${{ runner.temp }}/digests
       - name: Inspect manifest and extract digest
         id: inspect-manifest
         run: |
           set -Eeuo pipefail
-          output=$(docker buildx imagetools inspect ${{ env.REGISTRY }}/${{ github.repository }}-${{ inputs.flavor }}:${{ steps.metadata.outputs.version }} --format '{{json .}}')
+          output=$(docker buildx imagetools inspect "${REGISTRY}/${{ github.repository }}-${CONTAINER_FLAVOR}:${CONTAINER_VERSION}" --format '{{json .}}')
           echo "digest=$(echo "$output" | jq -r '.manifest.digest // .manifests[0].digest')" >> "$GITHUB_OUTPUT"
+        env:
+          CONTAINER_VERSION: ${{ steps.metadata.outputs.version }}
       - uses: ./.github/actions/container-size-diff
         id: container-size-diff
         with:
@@ -170,7 +181,7 @@ jobs:
           show-summary: false
           push-to-registry: true
       - name: Verify attestation
+        run: gh attestation verify --repo ${{ github.repository }} "oci://${REGISTRY}/${{ github.repository }}-${CONTAINER_FLAVOR}@${DIGEST}"
         env:
+          DIGEST: ${{ steps.inspect-manifest.outputs.digest }}
           GH_TOKEN: ${{ github.token }}
-        run: |
-          gh attestation verify --repo ${{ github.repository }} oci://${{ env.REGISTRY }}/${{ github.repository }}-${{ inputs.flavor }}@${{ steps.inspect-manifest.outputs.digest }}

.github/workflows/wc-integration-test.yml

@@ -14,6 +14,10 @@ on:
 permissions:
   contents: read
 
+env:
+  CONTAINER_FLAVOR: ${{ inputs.flavor }}
+  RUNNER: ${{ inputs.runner }}
+
 jobs:
   determine-container:
     runs-on: ${{ inputs.runner }}
@@ -29,7 +33,7 @@ jobs:
         with:
           path: ${{ runner.temp }}
           pattern: digests-${{ inputs.flavor }}-${{ steps.runner-arch.outputs.arch }}
-      - run: echo "container=$(printf 'ghcr.io/${{ github.repository }}-${{ inputs.flavor }}@sha256:%s ' *)" >> "$GITHUB_OUTPUT"
+      - run: echo "container=$(printf "ghcr.io/${{ github.repository }}-${CONTAINER_FLAVOR}@sha256:%s " *)" >> "$GITHUB_OUTPUT"
         working-directory: ${{ runner.temp }}/digests-${{ inputs.flavor }}-${{ steps.runner-arch.outputs.arch }}
         id: set-container
   run-test:
@@ -50,7 +54,7 @@ jobs:
           key: xwin-cache-${{ inputs.runner }}
           restore-keys: |
             xwin-cache
-      - run: bats --formatter junit test/${{ inputs.flavor }}/integration-tests.bats | tee test-report-${{ inputs.flavor }}-${{ inputs.runner }}.xml
+      - run: bats --formatter junit "test/${CONTAINER_FLAVOR}/integration-tests.bats" | tee "test-report-${CONTAINER_FLAVOR}-${RUNNER}.xml"
       - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         if: always()
         with:

.mega-linter.yml

@@ -24,3 +24,4 @@ FILTER_REGEX_EXCLUDE: (CHANGELOG.md|package-lock.json)
 # dynamically based upon context (e.g. installed extensions)
 # hence the exclusion
 JSON_V8R_FILTER_REGEX_EXCLUDE: (\.vscode)
+REPOSITORY_TRIVY_ARGUMENTS: --ignorefile .github/linters/.trivyignore.yml