feat: add safely wrapped scan-* workflows

.gitea/workflows/cd.yaml

@@ -10,15 +10,15 @@ jobs:
     name: Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
       - name: Increment tag
         id: tag
-        uses: https://gitea.t000-n.de/t.behrendt/conventional-semantic-git-tag-increment@e393dbb067c09fd43519392572ccf63b66cba92d # 0.1.39
+        uses: https://gitea.t000-n.de/t.behrendt/conventional-semantic-git-tag-increment@41b7e04221df8a033bec841d40a097b76e5f67ff # 0.1.29
         with:
           token: ${{ secrets.GITEA_TOKEN }}
       - name: Push tag
-        uses: https://gitea.t000-n.de/t.behrendt/actions/release-git-tag@0841ccc70fc2c1526123785f3b0a510a6ba4bdfc # 0.2.7
+        uses: https://gitea.t000-n.de/t.behrendt/actions/release-git-tag@3925c92fc33f3d2bc87d28d21ab691b7e6dd6cdf # 0.2.1
         with:
           tag: ${{ steps.tag.outputs.new-tag }}

.gitea/workflows/ci.yaml

@@ -4,57 +4,124 @@ on:
   pull_request:
 
 jobs:
-  test-setup-osv:
-    strategy:
-      matrix:
-        arch: [amd64, arm64]
-    name: Test Setup OSV Scanner ${{ matrix.arch }}
-    runs-on:
-      - ubuntu-latest
-      - linux_${{ matrix.arch }}
-    steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-      - name: Setup OSV Scanner
-        uses: ./setup-osv
-        with:
-          version: v2.4.0
-          amd64-digest: 15314940c10d26af9c6649f150b8a47c1262e8fc7e17b1d1029b0e479e8ed8a0
-          arm64-digest: 44e580752910f0ff36ec99aff59af20f65df1e859aa31e5605a8f0d055b496e9
-      - name: Run osv-scanner
-        run: osv-scanner --version
-
   test-setup-db:
     name: Test Setup DB
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-      - uses: ./setup-osv
-        with:
-          version: v2.4.0
-          amd64-digest: 15314940c10d26af9c6649f150b8a47c1262e8fc7e17b1d1029b0e479e8ed8a0
-          arm64-digest: 44e580752910f0ff36ec99aff59af20f65df1e859aa31e5605a8f0d055b496e9
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup DB
         id: setup-db
         uses: ./setup-db
-        with:
-          # Keep CI fast; full ecosystem download is covered by the action default.
-          ecosystems: Go,npm,PyPI
-      - name: Run osv-scanner offline
+      - name: Verify vulnerability DB in cache
         run: |
-          test -n "${OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY}"
-          test "${OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY}" = "${{ steps.setup-db.outputs.cache-dir }}"
-          test -f "${OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY}/osv-scanner/Go/all.zip"
-          test -f "${OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY}/osv-scanner/npm/all.zip"
-          test -f "${OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY}/osv-scanner/PyPI/all.zip"
-          osv-scanner scan source --offline-vulnerabilities --allow-no-lockfiles .
+          set -euo pipefail
+          cache="${{ steps.setup-db.outputs.cache-dir }}"
+          db="$cache/db/trivy.db"
+          meta="$cache/db/metadata.json"
+          test -f "$meta" || { echo "FAIL: $meta missing (DB not downloaded?)"; exit 1; }
+          test -f "$db" || { echo "FAIL: $db missing (DB not downloaded?)"; exit 1; }
+          size=$(stat -c%s "$db")
+          min=$((3 * 1024 * 1024))
+          if [ "$size" -lt "$min" ]; then
+            echo "FAIL: trivy.db too small ($size bytes; expected at least $min bytes, i.e. a few MiB)"
+            exit 1
+          fi
+          echo "OK: trivy.db is present ($size bytes) and metadata.json exists."
+
+  test-scan-config:
+    name: Test scan-config
+    runs-on:
+      - ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - name: Setup Trivy DB cache
+        id: db
+        uses: ./setup-db
+      - name: Create ephemeral config fixture
+        id: fixture
+        run: |
+          set -euo pipefail
+          scan="${{ runner.temp }}/trivy-ci-scan-config"
+          reports="${{ runner.temp }}/trivy-ci-reports-config"
+          mkdir -p "$scan" "$reports"
+          printf '%s\n' 'FROM alpine:3.20' > "$scan/Dockerfile"
+          echo "scan-path=$scan" >> "$GITHUB_OUTPUT"
+          echo "reports=$reports" >> "$GITHUB_OUTPUT"
+      - name: Run scan-config
+        id: scan
+        uses: ./scan-config
+        with:
+          scan-path: ${{ steps.fixture.outputs.scan-path }}
+          cache-dir: ${{ steps.db.outputs.cache-dir }}
+          output-dir: ${{ steps.fixture.outputs.reports }}
+          output-file: report.sarif
+      - name: Check output file exists
+        run: test -f "${{ steps.scan.outputs.output-path }}"
+
+  test-scan-fs:
+    name: Test scan-fs
+    runs-on:
+      - ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - name: Setup Trivy DB cache
+        id: db
+        uses: ./setup-db
+      - name: Create ephemeral filesystem fixture
+        id: fixture
+        run: |
+          set -euo pipefail
+          scan="${{ runner.temp }}/trivy-ci-scan-fs"
+          reports="${{ runner.temp }}/trivy-ci-reports-fs"
+          mkdir -p "$scan" "$reports"
+          printf '%s\n' '{"private":true,"name":"trivy-ci-fixture"}' > "$scan/package.json"
+          echo "scan-path=$scan" >> "$GITHUB_OUTPUT"
+          echo "reports=$reports" >> "$GITHUB_OUTPUT"
+      - name: Run scan-fs
+        id: scan
+        uses: ./scan-fs
+        with:
+          scan-path: ${{ steps.fixture.outputs.scan-path }}
+          cache-dir: ${{ steps.db.outputs.cache-dir }}
+          output-dir: ${{ steps.fixture.outputs.reports }}
+          output-file: report.sarif
+      - name: Check output file exists
+        run: test -f "${{ steps.scan.outputs.output-path }}"
+
+  test-scan-image:
+    name: Test scan-image
+    runs-on:
+      - ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - name: Setup Trivy DB cache
+        id: db
+        uses: ./setup-db
+      - name: Prepare report directory
+        id: fixture
+        run: |
+          set -euo pipefail
+          reports="${{ runner.temp }}/trivy-ci-reports-image"
+          mkdir -p "$reports"
+          echo "reports=$reports" >> "$GITHUB_OUTPUT"
+      - name: Run scan-image
+        id: scan
+        uses: ./scan-image
+        with:
+          image: ghcr.io/aquasecurity/trivy:0.69.3@sha256:bcc376de8d77cfe086a917230e818dc9f8528e3c852f7b1aff648949b6258d1c
+          cache-dir: ${{ steps.db.outputs.cache-dir }}
+          output-dir: ${{ steps.fixture.outputs.reports }}
+          output-file: report.sarif
+      - name: Check output file exists
+        run: test -f "${{ steps.scan.outputs.output-path }}"
 
   test-get-images-from-files:
     name: Test Get Images From Files
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - id: giff
         uses: ./get-images-from-files
         with:
@@ -105,7 +172,7 @@ jobs:
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Merge SARIF Files
         uses: ./merge-sarif-files
         with:

.gitea/workflows/prerelease.yaml

@@ -8,16 +8,16 @@ jobs:
     name: Prerelease
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
       - name: Increment tag
         id: tag
-        uses: https://gitea.t000-n.de/t.behrendt/conventional-semantic-git-tag-increment@e393dbb067c09fd43519392572ccf63b66cba92d # 0.1.39
+        uses: https://gitea.t000-n.de/t.behrendt/conventional-semantic-git-tag-increment@41b7e04221df8a033bec841d40a097b76e5f67ff # 0.1.29
         with:
           token: ${{ secrets.GITEA_TOKEN }}
           prerelease: true
       - name: Push tag
-        uses: https://gitea.t000-n.de/t.behrendt/actions/release-git-tag@0841ccc70fc2c1526123785f3b0a510a6ba4bdfc # 0.2.7
+        uses: https://gitea.t000-n.de/t.behrendt/actions/release-git-tag@3925c92fc33f3d2bc87d28d21ab691b7e6dd6cdf # 0.2.1
         with:
           tag: ${{ steps.tag.outputs.new-tag }}

README.md

@@ -1,3 +1,3 @@
-# OSV Scanner Actions
+# Trivy Actions
 
-Gitea compatible actions related to osv-scanner or the OSV ecosystem.
+Gitea compatible actions related to Trivy or the Trivy ecosystem.

renovate.json

@@ -1,5 +1,26 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": ["local>t.behrendt/renovate-configs:action"],
+  "extends": [
+    "local>t.behrendt/renovate-configs:common",
+    "local>t.behrendt/renovate-configs:action"
+  ],
+  "customManagers": [
+    {
+      "customType": "regex",
+      "description": "Update Trivy docker image",
+      "managerFilePatterns": [
+        "/(^|/)(setup-db|scan-config|scan-fs|scan-image)/action\\.ya?ml$/"
+      ],
+      "datasourceTemplate": "docker",
+      "matchStrings": [
+        "default:\\s*\"(?<depName>ghcr\\.io/aquasecurity/trivy):(?<currentValue>[\\d\\.]+)(?:@(?<currentDigest>sha256:[a-f0-9]+))?\""
+      ]
+    }
+  ],
+  "packageRules": [
+    {
+      "matchManagers": ["dockerfile", "kubernetes", "helmfile", "helm-values"],
       "ignorePaths": ["get-images-from-files/test*"]
+    }
+  ]
 }

scan-config/README.md

@@ -0,0 +1,57 @@
+# Trivy scan (misconfiguration)
+
+Composite action that runs **`trivy config`** inside **Docker** with the same hardening style as [setup-db](../setup-db): read-only root filesystem, dropped capabilities, `no-new-privileges`, AppArmor `docker-default`, a private `tmpfs` on `/tmp`, and resource limits.
+
+The directory you pass as **`scan-path`** is bind-mounted **read-only** at `/scan`. The vulnerability and policy cache from [setup-db](../setup-db) is mounted **read-only** at `/cache`. Your **`output-dir`** is mounted **read-write** at `/out`; the report is written as **`output-file`** inside that directory. The report format is always **SARIF** (`--format sarif`). Trivy is always run with **`--offline-scan`** (no API calls to resolve dependencies) and **`--exit-code 0`** (the step succeeds after writing the report even when findings are present).
+
+**Misconfiguration scans do not need outbound network.** This action sets **`--network none`** so the container cannot reach the network. Rego check bundles are not fetched online (`--skip-check-update`); use a Trivy image that already includes the checks you need, or rely on the embedded defaults.
+
+## Prerequisites
+
+- Docker on the runner.
+- A populated Trivy cache at **`cache-dir`** (typically from the [setup-db](../setup-db) action).
+
+## Usage
+
+```yaml
+- uses: actions/checkout@v4
+- name: Setup Trivy DB cache
+  id: db
+  uses: ./setup-db
+- name: Misconfiguration scan
+  id: scan
+  uses: ./scan-config
+  with:
+    scan-path: ${{ github.workspace }}
+    cache-dir: ${{ steps.db.outputs.cache-dir }}
+    output-dir: ${{ runner.temp }}/trivy-reports
+    output-file: misconfig.sarif
+- name: Upload report
+  uses: actions/upload-artifact@v4
+  with:
+    name: trivy-misconfig
+    path: ${{ steps.scan.outputs.output-path }}
+```
+
+## Inputs
+
+| Input           | Description                                                                 | Required | Default |
+| --------------- | --------------------------------------------------------------------------- | -------- | ------- |
+| `scan-path`     | Host directory to scan (mounted read-only at `/scan`)                       | Yes      | —       |
+| `cache-dir`     | Trivy cache directory (mounted read-only at `/cache`)                       | No       | `${{ runner.temp }}/trivy` |
+| `output-dir`    | Host directory for the report (mounted read-write at `/out`)                | Yes      | —       |
+| `output-file`   | SARIF file name only (no `/`); created under `output-dir`                   | Yes      | —       |
+| `trivy-version` | Trivy Docker image (digest pin recommended)                                 | No       | Same pin as `setup-db` / see `action.yaml` |
+
+**`trivy-version` is optional.** Omit it to use the default image from `action.yaml`.
+
+## Outputs
+
+| Output         | Description                          |
+| -------------- | ------------------------------------ |
+| `output-path`  | Absolute path to the SARIF report on the host |
+
+## Notes
+
+- Paths should exist or be creatable: **`output-dir`** is created with `mkdir -p` if missing; **`scan-path`** and **`cache-dir`** must already exist.
+- The step still fails if Docker or the container exits non-zero before Trivy completes (e.g. mount or runtime errors).

scan-config/action.yaml

@@ -0,0 +1,81 @@
+name: "Trivy scan (misconfiguration)"
+description: "Run trivy config in a locked-down Docker container (misconfiguration / IaC); report is always SARIF"
+author: "Timo Behrendt <t.behrendt@t00n.de>"
+branding:
+  icon: "shield"
+  color: "blue"
+
+inputs:
+  scan-path:
+    description: "Host path to the directory to scan (mounted read-only at /scan in the container)"
+    required: true
+  cache-dir:
+    description: "Host path to the Trivy cache directory (mounted read-only at /cache; use the same path as setup-db)"
+    required: false
+    default: "${{ runner.temp }}/trivy"
+  output-dir:
+    description: "Host directory where the report file is written (mounted read-write at /out)"
+    required: true
+  output-file:
+    description: "SARIF report file name only (no slashes); written under output-dir"
+    required: true
+  trivy-version:
+    description: "Trivy Docker image reference (digest pin recommended)"
+    required: false
+    default: "ghcr.io/aquasecurity/trivy:0.69.3@sha256:bcc376de8d77cfe086a917230e818dc9f8528e3c852f7b1aff648949b6258d1c"
+
+outputs:
+  output-path:
+    description: "Host path to the generated report file"
+    value: ${{ steps.scan.outputs.output-path }}
+
+runs:
+  using: "composite"
+  steps:
+    - id: scan
+      shell: bash
+      env:
+        SCAN_PATH_IN: ${{ inputs.scan-path }}
+        CACHE_DIR_IN: ${{ inputs.cache-dir }}
+        OUTPUT_DIR_IN: ${{ inputs.output-dir }}
+        OUTPUT_FILE: ${{ inputs.output-file }}
+        TRIVY_IMAGE: ${{ inputs.trivy-version }}
+      run: |
+        set -euo pipefail
+        case "$OUTPUT_FILE" in */*|".."*) echo "FAIL: output-file must be a single file name (no path separators)"; exit 1 ;; esac
+        scan_path=$(realpath "$SCAN_PATH_IN")
+        cache_dir=$(realpath "$CACHE_DIR_IN")
+        mkdir -p "$OUTPUT_DIR_IN"
+        output_dir=$(realpath "$OUTPUT_DIR_IN")
+        test -d "$scan_path" || { echo "FAIL: scan-path is not a directory: $scan_path"; exit 1; }
+        test -d "$cache_dir" || { echo "FAIL: cache-dir is not a directory: $cache_dir"; exit 1; }
+
+        docker run --rm \
+          --name trivy-scan-config \
+          --user "$(id -u):$(id -g)" \
+          --read-only \
+          --env-file /dev/null \
+          --cap-drop ALL \
+          --pids-limit 64 \
+          --memory=512m \
+          --memory-swap=512m \
+          --cpus=1 \
+          --ipc private \
+          --cgroupns private \
+          --security-opt no-new-privileges \
+          --security-opt apparmor=docker-default \
+          --tmpfs /tmp:rw,noexec,nosuid,nodev,size=1g \
+          --network none \
+          --mount type=bind,src="$scan_path",dst=/scan,ro \
+          --mount type=bind,src="$cache_dir",dst=/cache,ro \
+          --mount type=bind,src="$output_dir",dst=/out \
+          "$TRIVY_IMAGE" \
+          config /scan \
+          --cache-dir /cache \
+          --skip-check-update \
+          --offline-scan \
+          --format sarif \
+          --exit-code 0 \
+          -o "/out/$OUTPUT_FILE"
+
+        echo "output-path=$output_dir/$OUTPUT_FILE" >> "$GITHUB_OUTPUT"

scan-fs/README.md

@@ -0,0 +1,58 @@
+# Trivy scan (filesystem)
+
+Composite action that runs **`trivy filesystem`** inside **Docker** with the same hardening style as [setup-db](../setup-db): read-only root filesystem, dropped capabilities, `no-new-privileges`, AppArmor `docker-default`, a private `tmpfs` on `/tmp`, and resource limits.
+
+The directory you pass as **`scan-path`** is bind-mounted **read-only** at `/scan`. The Trivy cache from [setup-db](../setup-db) is mounted **read-only** at `/cache`. Your **`output-dir`** is mounted **read-write** at `/out`; the report is written as **`output-file`** inside that directory. The report format is always **SARIF** (`--format sarif`). Trivy is always run with **`--offline-scan`** (no API calls to identify dependencies) and **`--exit-code 0`** (the step succeeds after writing the report even when findings are present).
+
+**Filesystem scans use `--network none`** so the scan container cannot reach the network. The vulnerability database must already be present under **`cache-dir`**; the action passes **`--skip-db-update`** and **`--skip-check-update`** so Trivy does not try to refresh data online.
+
+## Prerequisites
+
+- Docker on the runner.
+- A populated Trivy cache at **`cache-dir`** (typically from the [setup-db](../setup-db) action).
+
+## Usage
+
+```yaml
+- uses: actions/checkout@v4
+- name: Setup Trivy DB cache
+  id: db
+  uses: ./setup-db
+- name: Filesystem scan
+  id: scan
+  uses: ./scan-fs
+  with:
+    scan-path: ${{ github.workspace }}
+    cache-dir: ${{ steps.db.outputs.cache-dir }}
+    output-dir: ${{ runner.temp }}/trivy-reports
+    output-file: fs.sarif
+- name: Upload report
+  uses: actions/upload-artifact@v4
+  with:
+    name: trivy-fs
+    path: ${{ steps.scan.outputs.output-path }}
+```
+
+## Inputs
+
+| Input           | Description                                                                 | Required | Default |
+| --------------- | --------------------------------------------------------------------------- | -------- | ------- |
+| `scan-path`     | Host directory to scan (mounted read-only at `/scan`)                       | Yes      | —       |
+| `cache-dir`     | Trivy cache directory (mounted read-only at `/cache`)                       | No       | `${{ runner.temp }}/trivy` |
+| `output-dir`    | Host directory for the report (mounted read-write at `/out`)                | Yes      | —       |
+| `output-file`   | SARIF file name only (no `/`); created under `output-dir`                   | Yes      | —       |
+| `trivy-version` | Trivy Docker image (digest pin recommended)                                 | No       | Same pin as `setup-db` / see `action.yaml` |
+
+**`trivy-version` is optional.** Omit it to use the default image from `action.yaml`.
+
+## Outputs
+
+| Output         | Description                          |
+| -------------- | ------------------------------------ |
+| `output-path`  | Absolute path to the SARIF report on the host |
+
+## Notes
+
+- Paths should exist or be creatable: **`output-dir`** is created with `mkdir -p` if missing; **`scan-path`** and **`cache-dir`** must already exist.
+- Default Trivy filesystem scanners include **vuln** and **secret**; misconfig-related network fetches are avoided via **`--skip-check-update`**.
+- The step still fails if Docker or the container exits non-zero before Trivy completes (e.g. mount or runtime errors).

scan-fs/action.yaml

@@ -0,0 +1,82 @@
+name: "Trivy scan (filesystem)"
+description: "Run trivy filesystem in a locked-down Docker container; report is always SARIF"
+author: "Timo Behrendt <t.behrendt@t00n.de>"
+branding:
+  icon: "search"
+  color: "blue"
+
+inputs:
+  scan-path:
+    description: "Host path to the directory to scan (mounted read-only at /scan in the container)"
+    required: true
+  cache-dir:
+    description: "Host path to the Trivy cache directory (mounted read-only at /cache; use the same path as setup-db)"
+    required: false
+    default: "${{ runner.temp }}/trivy"
+  output-dir:
+    description: "Host directory where the report file is written (mounted read-write at /out)"
+    required: true
+  output-file:
+    description: "SARIF report file name only (no slashes); written under output-dir"
+    required: true
+  trivy-version:
+    description: "Trivy Docker image reference (digest pin recommended)"
+    required: false
+    default: "ghcr.io/aquasecurity/trivy:0.69.3@sha256:bcc376de8d77cfe086a917230e818dc9f8528e3c852f7b1aff648949b6258d1c"
+
+outputs:
+  output-path:
+    description: "Host path to the generated report file"
+    value: ${{ steps.scan.outputs.output-path }}
+
+runs:
+  using: "composite"
+  steps:
+    - id: scan
+      shell: bash
+      env:
+        SCAN_PATH_IN: ${{ inputs.scan-path }}
+        CACHE_DIR_IN: ${{ inputs.cache-dir }}
+        OUTPUT_DIR_IN: ${{ inputs.output-dir }}
+        OUTPUT_FILE: ${{ inputs.output-file }}
+        TRIVY_IMAGE: ${{ inputs.trivy-version }}
+      run: |
+        set -euo pipefail
+        case "$OUTPUT_FILE" in */*|".."*) echo "FAIL: output-file must be a single file name (no path separators)"; exit 1 ;; esac
+        scan_path=$(realpath "$SCAN_PATH_IN")
+        cache_dir=$(realpath "$CACHE_DIR_IN")
+        mkdir -p "$OUTPUT_DIR_IN"
+        output_dir=$(realpath "$OUTPUT_DIR_IN")
+        test -d "$scan_path" || { echo "FAIL: scan-path is not a directory: $scan_path"; exit 1; }
+        test -d "$cache_dir" || { echo "FAIL: cache-dir is not a directory: $cache_dir"; exit 1; }
+
+        docker run --rm \
+          --name trivy-scan-fs \
+          --user "$(id -u):$(id -g)" \
+          --read-only \
+          --env-file /dev/null \
+          --cap-drop ALL \
+          --pids-limit 64 \
+          --memory=512m \
+          --memory-swap=512m \
+          --cpus=1 \
+          --ipc private \
+          --cgroupns private \
+          --security-opt no-new-privileges \
+          --security-opt apparmor=docker-default \
+          --tmpfs /tmp:rw,noexec,nosuid,nodev,size=1g \
+          --network none \
+          --mount type=bind,src="$scan_path",dst=/scan,ro \
+          --mount type=bind,src="$cache_dir",dst=/cache,ro \
+          --mount type=bind,src="$output_dir",dst=/out \
+          "$TRIVY_IMAGE" \
+          filesystem /scan \
+          --cache-dir /cache \
+          --skip-db-update \
+          --skip-check-update \
+          --offline-scan \
+          --format sarif \
+          --exit-code 0 \
+          -o "/out/$OUTPUT_FILE"
+
+        echo "output-path=$output_dir/$OUTPUT_FILE" >> "$GITHUB_OUTPUT"

scan-image/README.md

@@ -0,0 +1,57 @@
+# Trivy scan (image)
+
+Composite action that runs **`trivy image`** inside **Docker** with the same hardening style as [setup-db](../setup-db): read-only root filesystem, dropped capabilities, `no-new-privileges`, AppArmor `docker-default`, a private `tmpfs` on `/tmp`, and resource limits.
+
+You pass a pullable **`image`** reference (e.g. `alpine:3.20` or a digest). Trivy pulls and scans it inside the container. The Trivy cache from [setup-db](../setup-db) is mounted **read-only** at `/cache` (**`--skip-db-update`** avoids re-downloading the DB). Your **`output-dir`** is mounted **read-write** at `/out`; the report is written as **`output-file`** inside that directory. The report format is always **SARIF** (`--format sarif`). Trivy is always run with **`--offline-scan`** (no API calls to identify dependencies) and **`--exit-code 0`** (the step succeeds after writing the report even when findings are present). Image layers are still pulled over the network when needed.
+
+**Image scans need network access** to pull the image (and possibly layers). This action does **not** set `--network none` (unlike [scan-config](../scan-config) and [scan-fs](../scan-fs)).
+
+## Prerequisites
+
+- Docker on the runner.
+- A populated Trivy cache at **`cache-dir`** (typically from the [setup-db](../setup-db) action).
+
+## Usage
+
+```yaml
+- name: Setup Trivy DB cache
+  id: db
+  uses: ./setup-db
+- name: Image scan
+  id: scan
+  uses: ./scan-image
+  with:
+    image: alpine:3.20
+    cache-dir: ${{ steps.db.outputs.cache-dir }}
+    output-dir: ${{ runner.temp }}/trivy-reports
+    output-file: image.sarif
+- name: Upload report
+  uses: actions/upload-artifact@v4
+  with:
+    name: trivy-image
+    path: ${{ steps.scan.outputs.output-path }}
+```
+
+## Inputs
+
+| Input           | Description                                                                 | Required | Default |
+| --------------- | --------------------------------------------------------------------------- | -------- | ------- |
+| `image`         | Image reference to scan (pulled inside the container)                       | Yes      | —       |
+| `cache-dir`     | Trivy cache directory (mounted read-only at `/cache`)                       | No       | `${{ runner.temp }}/trivy` |
+| `output-dir`    | Host directory for the report (mounted read-write at `/out`)                | Yes      | —       |
+| `output-file`   | SARIF file name only (no `/`); created under `output-dir`                   | Yes      | —       |
+| `trivy-version` | Trivy Docker image (digest pin recommended)                                 | No       | Same pin as `setup-db` / see `action.yaml` |
+
+**`trivy-version` is optional.** Omit it to use the default image from `action.yaml`.
+
+## Outputs
+
+| Output         | Description                          |
+| -------------- | ------------------------------------ |
+| `output-path`  | Absolute path to the SARIF report on the host |
+
+## Notes
+
+- **`output-dir`** is created with `mkdir -p` if missing; **`cache-dir`** must already exist.
+- Local-only images (e.g. built on the host) are not supported unless they are available to the **inner** Docker pull (this action does not mount `docker.sock`).
+- The step still fails if Docker or the container exits non-zero before Trivy completes (e.g. mount or runtime errors).

scan-image/action.yaml

@@ -0,0 +1,77 @@
+name: "Trivy scan (image)"
+description: "Run trivy image in a locked-down Docker container; report is always SARIF"
+author: "Timo Behrendt <t.behrendt@t00n.de>"
+branding:
+  icon: "package"
+  color: "blue"
+
+inputs:
+  image:
+    description: "Container image reference to scan (pulled by Trivy inside the container; requires network)"
+    required: true
+  cache-dir:
+    description: "Host path to the Trivy cache directory (mounted read-only at /cache; use the same path as setup-db)"
+    required: false
+    default: "${{ runner.temp }}/trivy"
+  output-dir:
+    description: "Host directory where the report file is written (mounted read-write at /out)"
+    required: true
+  output-file:
+    description: "SARIF report file name only (no slashes); written under output-dir"
+    required: true
+  trivy-version:
+    description: "Trivy Docker image reference (digest pin recommended)"
+    required: false
+    default: "ghcr.io/aquasecurity/trivy:0.69.3@sha256:bcc376de8d77cfe086a917230e818dc9f8528e3c852f7b1aff648949b6258d1c"
+
+outputs:
+  output-path:
+    description: "Host path to the generated report file"
+    value: ${{ steps.scan.outputs.output-path }}
+
+runs:
+  using: "composite"
+  steps:
+    - id: scan
+      shell: bash
+      env:
+        IMAGE_REF: ${{ inputs.image }}
+        CACHE_DIR_IN: ${{ inputs.cache-dir }}
+        OUTPUT_DIR_IN: ${{ inputs.output-dir }}
+        OUTPUT_FILE: ${{ inputs.output-file }}
+        TRIVY_IMAGE: ${{ inputs.trivy-version }}
+      run: |
+        set -euo pipefail
+        case "$OUTPUT_FILE" in */*|".."*) echo "FAIL: output-file must be a single file name (no path separators)"; exit 1 ;; esac
+        cache_dir=$(realpath "$CACHE_DIR_IN")
+        mkdir -p "$OUTPUT_DIR_IN"
+        output_dir=$(realpath "$OUTPUT_DIR_IN")
+        test -d "$cache_dir" || { echo "FAIL: cache-dir is not a directory: $cache_dir"; exit 1; }
+
+        docker run --rm \
+          --name trivy-scan-image \
+          --user "$(id -u):$(id -g)" \
+          --read-only \
+          --env-file /dev/null \
+          --cap-drop ALL \
+          --pids-limit 64 \
+          --memory=512m \
+          --memory-swap=512m \
+          --cpus=1 \
+          --ipc private \
+          --cgroupns private \
+          --security-opt no-new-privileges \
+          --security-opt apparmor=docker-default \
+          --tmpfs /tmp:rw,noexec,nosuid,nodev,size=1g \
+          --mount type=bind,src="$cache_dir",dst=/cache,ro \
+          --mount type=bind,src="$output_dir",dst=/out \
+          "$TRIVY_IMAGE" \
+          image "$IMAGE_REF" \
+          --cache-dir /cache \
+          --skip-db-update \
+          --offline-scan \
+          --format sarif \
+          --exit-code 0 \
+          -o "/out/$OUTPUT_FILE"
+
+        echo "output-path=$output_dir/$OUTPUT_FILE" >> "$GITHUB_OUTPUT"

setup-db/README.md

@@ -1,8 +1,10 @@
 # Setup DB Action
 
-A reusable Gitea Action that sets up the osv-scanner offline vulnerability database, restoring from cache if available.
+A reusable Gitea Action that sets up the Trivy vulnerability database, restoring from cache if available.
 
-**Note:** This action only sets up the database. osv-scanner itself must be installed separately (e.g., using the `setup-osv` action). Subsequent steps receive `OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY` via the environment.
+The action runs Trivy inside **Docker** with a restricted container configuration so the Trivy runtime is isolated from the host while the database is downloaded into your cache directory.
+
+**Note:** This action only prepares the vulnerability database. If you run Trivy on the runner host for scans (for example `trivy fs .`), install Trivy separately (e.g. with a `setup-trivy` action or your own step).
 
 ## Usage
 
@@ -10,7 +12,7 @@ A reusable Gitea Action that sets up the osv-scanner offline vulnerability datab
 
 ```yaml
 - name: Setup DB
-  uses: https://gitea.t000-n.de/t.behrendt/osv-scanner-actions/setup-db@0.0.1
+  uses: https://gitea.t000-n.de/t.behrendt/trivy-actions/setup-db@0.0.1
 ```
 
 ### Complete Example
@@ -26,28 +28,19 @@ jobs:
       - linux_amd64
     steps:
       - uses: actions/checkout@v4
-      - name: Setup OSV Scanner
-        uses: https://gitea.t000-n.de/t.behrendt/osv-scanner-actions/setup-osv@0.0.1
-        with:
-          version: "v2.4.0"
-          amd64-digest: "15314940c10d26af9c6649f150b8a47c1262e8fc7e17b1d1029b0e479e8ed8a0"
-          arm64-digest: "44e580752910f0ff36ec99aff59af20f65df1e859aa31e5605a8f0d055b496e9"
+      - name: Setup Trivy
+        uses: https://gitea.t000-n.de/t.behrendt/trivy-actions/setup-trivy@0.0.1
       - name: Setup DB
-        id: setup-db
-        uses: https://gitea.t000-n.de/t.behrendt/osv-scanner-actions/setup-db@0.0.1
+        uses: https://gitea.t000-n.de/t.behrendt/trivy-actions/setup-db@0.0.1
       - name: Scan for vulnerabilities
-        run: osv-scanner scan source --offline-vulnerabilities -r .
+        run: trivy fs .
 ```
 
 ## Inputs
 
 | Input            | Description                                                                 | Required | Default |
-| ------------- | --------------------------------------------------------------------------- | -------- | -------------------------------- |
-| `cache-dir`   | Path used as `OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY`                         | No       | `${{ runner.temp }}/osv-scanner` |
-| `ecosystems`  | Comma-separated OSV ecosystems to download; empty downloads all ecosystems  | No       | _(all)_                          |
+| ---------------- | --------------------------------------------------------------------------- | -------- | ------- |
+| `cache-dir`      | Path to the Trivy cache directory                                           | No       | `${{ runner.temp }}/trivy` |
+| `trivy-version`  | Docker image reference for Trivy (digest pin recommended)                   | No       | Pinned `ghcr.io/aquasecurity/trivy` image in `action.yaml` |
 
-## Outputs
-
-| Output      | Description                                      |
-| ----------- | ------------------------------------------------ |
-| `cache-dir` | Path to the osv-scanner local DB cache directory |
+**`trivy-version` is optional.** If you omit it, the action uses the default image (version and digest) from `action.yaml`. Set it only when you need a different Trivy image or your own digest pin.

setup-db/action.yaml

@@ -1,23 +1,23 @@
-name: "Setup OSV Scanner DB"
-description: "Setup the osv-scanner offline vulnerability database, restoring from cache if available"
-author: "Timo Behrendt <t.behrendt@t00n.de>"
+name: "Setup Trivy DB"
+description: "Setup the trivy database, restoring from cache if available"
+author: "Timo Behrendt <t.behrendt@t00n.de"
 branding:
   icon: "database"
   color: "blue"
 
 inputs:
   cache-dir:
-    description: "Path used as OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY (default: ${{runner.temp}}/osv-scanner)"
+    description: "Path to the Trivy cache directory (default: ${{runner.temp}}/trivy)"
     required: false
-    default: "${{ runner.temp }}/osv-scanner"
-  ecosystems:
-    description: "Comma-separated list of OSV ecosystems to download. Empty downloads all ecosystems."
+    default: "${{ runner.temp }}/trivy"
+  trivy-version:
+    description: "Trivy docker image version to use (full image reference including digest is recommended)"
     required: false
-    default: ""
+    default: "ghcr.io/aquasecurity/trivy:0.69.3@sha256:bcc376de8d77cfe086a917230e818dc9f8528e3c852f7b1aff648949b6258d1c"
 
 outputs:
   cache-dir:
-    description: "Path to the osv-scanner local DB cache directory"
+    description: "Path to the Trivy cache directory"
     value: ${{ inputs.cache-dir }}
 
 runs:
@@ -28,67 +28,29 @@ runs:
       run: |
         echo "current-date=$(date +%Y-%m-%d)" >> $GITHUB_OUTPUT
     - id: restore-db
-      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
       with:
         path: ${{ inputs.cache-dir }}
-        key: osv-scanner-db-${{ steps.current-date.outputs.current-date }}
+        key: trivy-db-${{ steps.current-date.outputs.current-date }}
         restore-keys: |
-          osv-scanner-db-${{ steps.current-date.outputs.current-date }}
-    - name: Download offline databases
-      if: steps.restore-db.outputs.cache-hit != 'true'
+          trivy-db-${{ steps.current-date.outputs.current-date }}
+    - if: steps.restore-db.outputs.cache-hit != 'true'
       shell: bash
       run: |
-        set -euo pipefail
-
-        CACHE_DIR="${{ inputs.cache-dir }}"
-        DB_DIR="${CACHE_DIR}/osv-scanner"
-        mkdir -p "${DB_DIR}"
-
-        ECOSYSTEMS_INPUT="${{ inputs.ecosystems }}"
-        if [ -n "${ECOSYSTEMS_INPUT}" ]; then
-          # shellcheck disable=SC2001
-          ECOSYSTEMS=$(echo "${ECOSYSTEMS_INPUT}" | tr ',' '\n' | sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | grep -v '^$' || true)
-        else
-          ECOSYSTEMS=$(curl -fsSL https://osv-vulnerabilities.storage.googleapis.com/ecosystems.txt | grep -v '^$' | grep -v '^\[EMPTY\]$' || true)
-        fi
-
-        if [ -z "${ECOSYSTEMS}" ]; then
-          echo "No ecosystems to download" >&2
-          exit 1
-        fi
-
-        download_one() {
-          local ecosystem="$1"
-          local encoded
-          encoded=$(printf '%s' "${ecosystem}" | jq -sRr @uri)
-          local dest="${DB_DIR}/${ecosystem}"
-          mkdir -p "${dest}"
-          echo "Downloading ${ecosystem}..."
-          curl -fsSL "https://osv-vulnerabilities.storage.googleapis.com/${encoded}/all.zip" -o "${dest}/all.zip"
-        }
-
-        max_jobs=8
-        pids=()
-        while IFS= read -r ecosystem; do
-          [ -z "${ecosystem}" ] && continue
-          while [ "$(jobs -rp | wc -l)" -ge "${max_jobs}" ]; do
-            sleep 0.2
-          done
-          download_one "${ecosystem}" &
-          pids+=("$!")
-        done <<< "${ECOSYSTEMS}"
-
-        fail=0
-        for pid in "${pids[@]}"; do
-          wait "${pid}" || fail=1
-        done
-        if [ "${fail}" -ne 0 ]; then
-          echo "One or more ecosystem database downloads failed" >&2
-          exit 1
-        fi
-
-        echo "Downloaded $(find "${DB_DIR}" -name all.zip | wc -l) ecosystem database(s) to ${DB_DIR}"
-    - name: Export DB cache directory
-      shell: bash
-      run: |
-        echo "OSV_SCANNER_LOCAL_DB_CACHE_DIRECTORY=${{ inputs.cache-dir }}" >> "$GITHUB_ENV"
+        docker run --rm \
+          --name trivy-db-download \
+          --user "$(id -u):$(id -g)" \
+          --read-only \
+          --env-file /dev/null \
+          --cap-drop ALL \
+          --pids-limit 64 \
+          --memory=512m \
+          --memory-swap=512m \
+          --cpus=1 \
+          --ipc private \
+          --cgroupns private \
+          --security-opt no-new-privileges \
+          --security-opt apparmor=docker-default \
+          --tmpfs /tmp:rw,noexec,nosuid,nodev,size=1g \
+          --mount type=bind,src=${{ inputs.cache-dir }},dst=/cache \
+          ${{ inputs.trivy-version }} fs --download-db-only --cache-dir /cache

setup-osv/README.md

@@ -1,51 +0,0 @@
-# Setup OSV Scanner Action
-
-A reusable Gitea Action that downloads and sets up the osv-scanner binary for vulnerability scanning.
-
-The downloaded binary is verified against a pinned SHA-256 digest for the runner architecture.
-
-## Usage
-
-### Basic Usage
-
-```yaml
-- name: Setup OSV Scanner
-  uses: your-username/osv-scanner-actions@main/setup-osv
-  with:
-    version: "v2.4.0"
-    amd64-digest: "15314940c10d26af9c6649f150b8a47c1262e8fc7e17b1d1029b0e479e8ed8a0"
-    arm64-digest: "44e580752910f0ff36ec99aff59af20f65df1e859aa31e5605a8f0d055b496e9"
-```
-
-Digests are published in each release's `osv-scanner_SHA256SUMS` file (e.g. for `osv-scanner_linux_amd64` / `osv-scanner_linux_arm64`). You may pass either bare hex or `sha256:<hex>`.
-
-### Complete Example
-
-```yaml
-name: Security Scan
-on: [push, pull_request]
-
-jobs:
-  security:
-    runs-on:
-      - ubuntu-latest
-      - linux_amd64
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup OSV Scanner
-        uses: your-username/osv-scanner-actions@main/setup-osv
-        with:
-          version: "v2.4.0"
-          amd64-digest: "15314940c10d26af9c6649f150b8a47c1262e8fc7e17b1d1029b0e479e8ed8a0"
-          arm64-digest: "44e580752910f0ff36ec99aff59af20f65df1e859aa31e5605a8f0d055b496e9"
-      - name: Scan for vulnerabilities
-        run: osv-scanner scan source -r .
-```
-
-## Inputs
-
-| Input          | Description                                                          | Required | Default |
-| -------------- | -------------------------------------------------------------------- | -------- | ------- |
-| `version`      | Explicit osv-scanner release tag (e.g. `v2.4.0`). `latest` is rejected | Yes      | —       |
-| `amd64-digest` | SHA-256 of `osv-scanner_linux_amd64` (hex or `sha256:<hex>`)         | Yes      | —       |
-| `arm64-digest` | SHA-256 of `osv-scanner_linux_arm64` (hex or `sha256:<hex>`)         | Yes      | —       |

setup-osv/action.yaml

@@ -1,104 +0,0 @@
-name: "Setup OSV Scanner"
-description: "Download and setup osv-scanner binary for vulnerability scanning"
-author: "Gitea Actions"
-branding:
-  icon: "shield"
-  color: "blue"
-
-inputs:
-  version:
-    description: "osv-scanner version to download (e.g., v2.4.0). Must be an explicit release tag; 'latest' is not allowed."
-    required: true
-  amd64-digest:
-    description: "SHA-256 digest of the linux amd64 binary (hex or sha256:<hex>)"
-    required: true
-  arm64-digest:
-    description: "SHA-256 digest of the linux arm64 binary (hex or sha256:<hex>)"
-    required: true
-
-runs:
-  using: "composite"
-  steps:
-    - name: Resolve architecture and digest
-      shell: bash
-      id: arch
-      run: |
-        set -euo pipefail
-
-        VERSION="${{ inputs.version }}"
-        if [ -z "${VERSION}" ] || [ "${VERSION}" = "latest" ]; then
-          echo "version must be an explicit release tag (e.g. v2.4.0); 'latest' is not allowed" >&2
-          exit 1
-        fi
-
-        case "$(uname -m)" in
-          x86_64)
-            ARCH="amd64"
-            DIGEST="${{ inputs.amd64-digest }}"
-            ;;
-          aarch64)
-            ARCH="arm64"
-            DIGEST="${{ inputs.arm64-digest }}"
-            ;;
-          *)
-            echo "Unsupported architecture: $(uname -m)" >&2
-            exit 1
-            ;;
-        esac
-
-        if [ -z "${DIGEST}" ]; then
-          echo "Missing digest for architecture ${ARCH}" >&2
-          exit 1
-        fi
-
-        # Normalize sha256:<hex> / SHA256:<hex> to bare hex
-        DIGEST="${DIGEST#sha256:}"
-        DIGEST="${DIGEST#SHA256:}"
-
-        if ! [[ "${DIGEST}" =~ ^[a-fA-F0-9]{64}$ ]]; then
-          echo "Invalid ${ARCH} digest (expected 64-char hex or sha256:<hex>): ${DIGEST}" >&2
-          exit 1
-        fi
-
-        echo "ARCH=${ARCH}" >> "$GITHUB_OUTPUT"
-        echo "DIGEST=${DIGEST}" >> "$GITHUB_OUTPUT"
-        echo "VERSION=${VERSION}" >> "$GITHUB_OUTPUT"
-    - name: Cache osv-scanner binary
-      id: cache-osv
-      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
-      with:
-        path: /usr/local/bin/osv-scanner
-        key: osv-scanner-${{ steps.arch.outputs.version }}-${{ steps.arch.outputs.arch }}-${{ steps.arch.outputs.digest }}
-        restore-keys: |
-          osv-scanner-${{ steps.arch.outputs.version }}-${{ steps.arch.outputs.arch }}-${{ steps.arch.outputs.digest }}
-    - name: Download and install osv-scanner
-      if: steps.cache-osv.outputs.cache-hit != 'true'
-      shell: bash
-      run: |
-        set -euo pipefail
-
-        VERSION="${{ steps.arch.outputs.version }}"
-        ARCH="${{ steps.arch.outputs.arch }}"
-        EXPECTED_DIGEST="${{ steps.arch.outputs.digest }}"
-        DEST="/usr/local/bin/osv-scanner"
-
-        mkdir -p /usr/local/bin
-
-        curl -fsSL "https://github.com/google/osv-scanner/releases/download/${VERSION}/osv-scanner_linux_${ARCH}" -o "${DEST}"
-
-        ACTUAL_DIGEST=$(sha256sum "${DEST}" | awk '{print $1}')
-        if [ "${ACTUAL_DIGEST}" != "${EXPECTED_DIGEST}" ]; then
-          echo "Digest mismatch for osv-scanner ${VERSION} (linux_${ARCH})" >&2
-          echo "  expected: ${EXPECTED_DIGEST}" >&2
-          echo "  actual:   ${ACTUAL_DIGEST}" >&2
-          rm -f "${DEST}"
-          exit 1
-        fi
-
-        chmod +x "${DEST}"
-        echo "Verified osv-scanner ${VERSION} (linux_${ARCH}) digest ${ACTUAL_DIGEST}"
-
-    - name: Add osv-scanner to PATH
-      shell: bash
-      run: |
-        echo "/usr/local/bin" >> "$GITHUB_PATH"