From 065dcb1472e274d5e6e086e4a217274d5a95494f Mon Sep 17 00:00:00 2001
From: sbp-bvanb <126502840+sbp-bvanb@users.noreply.github.com>
Date: Thu, 26 Sep 2024 11:05:05 +0200
Subject: [PATCH] fix: [#73] Use cached Trivy DBs to prevent bump into pull
 rate limiting issues (#74)

---
 .gitignore |  1 +
 README.md  | 31 +++++++++++++++++++++----------
 action.yml | 24 +++++++++++++++++++++++-
 3 files changed, 45 insertions(+), 11 deletions(-)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..722d5e7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.vscode
diff --git a/README.md b/README.md
index 151c495..b15d906 100644
--- a/README.md
+++ b/README.md
@@ -21,14 +21,17 @@ In summary, using this action will ensure that Golang code meets certain
 standards before it will be deployed to production as the assembly line will
 fail if an issue arises.
 
-## usage
+## Usage
 
 Create a `.github/workflows/golang.yml` file with the following content:
 
-```bash
+```yaml
 ---
 name: Golang
-'on': push
+"on": push
+permissions:
+  contents: read
+  packages: read
 jobs:
   MCVS-golang-action:
     runs-on: ubuntu-20.04
@@ -38,18 +41,26 @@ jobs:
         with:
           golang-unit-tests-exclusions: |-
             \(cmd\/some-app\|internal\/app\/some-app\)
+          token: ${{ secrets.GITHUB_TOKEN }}
 ```
 
 and a [.golangci.yml](https://golangci-lint.run/usage/configuration/).
 
-| option                             | default |
-| ---------------------------------- | ------- |
-| code_coverage_expected             | 80      |
-| golang-unit-tests-exclusions       | ' '     |
-| golangci-lint-version              | v1.55.2 |
-| golang-number-of-tests-in-parallel | 4       |
+<!-- markdownlint-disable MD013 -->
+
+| Option                             | Default                              | Required | Description                                                                                                      |
+| :--------------------------------- | :----------------------------------- | -------- | :--------------------------------------------------------------------------------------------------------------- |
+| code_coverage_expected             | 80                                   |          |                                                                                                                  |
+| golang-unit-tests-exclusions       | ' '                                  |          |                                                                                                                  |
+| golangci-lint-version              | v1.55.2                              |          |                                                                                                                  |
+| golang-number-of-tests-in-parallel | 4                                    |          |                                                                                                                  |
+| token                              | ' '                                  | x        | GitHub token that is required to push an image to the registry of the project and to pull cached Trivy DB images |
+| trivy-action-db                    | ghcr.io/aquasecurity/trivy-db:2      |          | Replace this with a cached image to prevent bump into pull rate limiting issues                                  |
+| trivy-action-java-db               | ghcr.io/aquasecurity/trivy-java-db:1 |          | Replace this with a cached image to prevent bump into pull rate limiting issues                                  |
+
+<!-- markdownlint-enable MD013 -->
 
-## integration
+## Integration
 
 To execute integration tests, make sure that the code is located in a file with
 a `_integration_test.go` postfix, such as `some_integration_test.go`.
diff --git a/action.yml b/action.yml
index 24df7b8..8b555ca 100644
--- a/action.yml
+++ b/action.yml
@@ -15,11 +15,23 @@ inputs:
     description: |
       The Golangci-lint version that has to be installed and used.
     default: v1.55.2
-    required: true
   golang-number-of-tests-in-parallel:
     description: |
       Number of test in parallel.
     default: "4"
+  trivy-action-db:
+    default: "ghcr.io/aquasecurity/trivy-db:2"
+    description: |
+      OCI repository to retrieve trivy-db from.
+  trivy-action-java-db:
+    description: |
+      OCI repository to retrieve trivy-java-db from.
+    default: "ghcr.io/aquasecurity/trivy-java-db:1"
+  token:
+    description: |
+      A token is required to allow the mcvs-golang-action to pull the
+      cached trivy DBs to prevent bump into pull rate limits.
+    required: true
 runs:
   using: "composite"
   steps:
@@ -73,7 +85,17 @@ runs:
         path: "."
         severity-cutoff: high
     - uses: 030/trivyignore-validator-action@v0.1.2
+    - name: Log in to GitHub Packages Docker registry
+      shell: bash
+      run: |
+        echo "${{ inputs.token }}" |\
+          docker login ghcr.io -u ${{ github.actor }} --password-stdin
     - uses: aquasecurity/trivy-action@0.24.0
+      env:
+        TRIVY_DB_REPOSITORY: ${{ inputs.trivy-action-db }}
+        TRIVY_JAVA_DB_REPOSITORY: ${{ inputs.trivy-action-java-db }}
+        TRIVY_PASSWORD: ${{ inputs.token }}
+        TRIVY_USERNAME: ${{ github.actor }}
       with:
         scan-type: "fs"
         scan-ref: "."