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GitHub actions checker

About The Project

A Github Action to ensure all your organization's repositories are using approved Actions and their reference to keep your codebase safe.

Github actions format

Each usage of github actions consists of an owner, a repository and a reference.

Bad practice

- uses: cirrus-actions/rebase@1.5

Good practice

- uses: cirrus-actions/rebase@c473b716e3fcde0c6bf67416e2c2882830ad40f6  # 1.5

Why

Git tags can be updated to point at a different SHA1 (and becoming malicious which can imply leaks/steals), whereas SHA1 is immutable.

Safe github actions

Github actions (and their references) must be one of:

  • ALLOWED_ACTIONS.yaml file
  • starts with following patterns (actions|lumapps)/.* (no need to use SHA1 in this case)

Installation

To configure the action simply add the following lines to your .github/workflows/github-actions-validator.yml workflow file:

name: "CI: github-actions-validator"

on:
  pull_request:


jobs:
  github-actions-validator:
    name: Github-actions-validator
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - uses: lumapps/github-actions-validator@vX