GitHub Actions Security Analysis workflow (encode/starlette)

The GitHub Actions Security Analysis workflow from encode/starlette, explained and optimized by Latchkey.

CI health: C - fair

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Source: encode/starlette.github/workflows/zizmor.ymlLicense BSD-3-ClauseView source

What it does

This is the GitHub Actions Security Analysis workflow from the encode/starlette repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: GitHub Actions Security Analysis

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["**"]

permissions: {}

jobs:
  zizmor:
    runs-on: ubuntu-latest

    permissions:
      security-events: write # Required for upload-sarif (used by zizmor-action) to upload SARIF files.

    steps:
      - name: Checkout repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          persist-credentials: false

      - name: Run zizmor 🌈
        uses: zizmorcore/zizmor-action@192e21d79ab29983730a13d1382995c2307fbcaa # v0.5.7

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: GitHub Actions Security Analysis
 
on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["**"]
 
permissions: {}
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  zizmor:
    timeout-minutes: 30
    runs-on: latchkey-small
 
    permissions:
      security-events: write # Required for upload-sarif (used by zizmor-action) to upload SARIF files.
 
    steps:
      - name: Checkout repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          persist-credentials: false
 
      - name: Run zizmor 🌈
        uses: zizmorcore/zizmor-action@192e21d79ab29983730a13d1382995c2307fbcaa # v0.5.7

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Add a job timeout so a hung step cannot burn hours of runner time.

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout