Check Dockerfile Sanity workflow (harbor-framework/terminal-bench)

The Check Dockerfile Sanity workflow from harbor-framework/terminal-bench, explained and optimized by Latchkey.

What it does

This is the Check Dockerfile Sanity workflow from the harbor-framework/terminal-bench repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

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

The workflow

name: Check Dockerfile Sanity

on:
  pull_request:
    paths:
      - "tasks/**/Dockerfile"
      - "adapters/**/Dockerfile"
  push:
    branches:
      - main
  workflow_dispatch: # Allow manual triggering

jobs:
  check-dockerfile-sanity:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Check Dockerfile sanity (pinned dependencies)
        run: |
          echo "Running Dockerfile sanity check..."
          echo "This check ensures that apt install commands don't pin dependency versions"
          echo "Pinned versions can cause issues when packages are removed or updated"
          echo ""

          # Always check all Dockerfiles for this sanity check
          # This is a quick check that should run on all files
          ALL_DOCKERFILES=$(find tasks adapters -name "Dockerfile" -type f 2>/dev/null || true)

          if [ -z "$ALL_DOCKERFILES" ]; then
            echo "No Dockerfiles found in tasks or adapters directories"
            exit 0
          fi

          echo "Found $(echo "$ALL_DOCKERFILES" | wc -l) Dockerfiles to check"
          echo ""

          ./scripts_bash/check-dockerfile-sanity.sh $ALL_DOCKERFILES

The same workflow, on Latchkey

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

name: Check Dockerfile Sanity
 
on:
  pull_request:
    paths:
      - "tasks/**/Dockerfile"
      - "adapters/**/Dockerfile"
  push:
    branches:
      - main
  workflow_dispatch: # Allow manual triggering
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  check-dockerfile-sanity:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
 
      - name: Check Dockerfile sanity (pinned dependencies)
        run: |
          echo "Running Dockerfile sanity check..."
          echo "This check ensures that apt install commands don't pin dependency versions"
          echo "Pinned versions can cause issues when packages are removed or updated"
          echo ""
 
          # Always check all Dockerfiles for this sanity check
          # This is a quick check that should run on all files
          ALL_DOCKERFILES=$(find tasks adapters -name "Dockerfile" -type f 2>/dev/null || true)
 
          if [ -z "$ALL_DOCKERFILES" ]; then
            echo "No Dockerfiles found in tasks or adapters directories"
            exit 0
          fi
 
          echo "Found $(echo "$ALL_DOCKERFILES" | wc -l) Dockerfiles to check"
          echo ""
 
          ./scripts_bash/check-dockerfile-sanity.sh $ALL_DOCKERFILES
 

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.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

• Dependency installs

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