Publish workflow (MTSWebServices/Ambrosia)

The Publish workflow from MTSWebServices/Ambrosia, explained and optimized by Latchkey.

What it does

This is the Publish workflow from the MTSWebServices/Ambrosia 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: Publish

on:
  release:
    types:
      - created

jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"

      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Install poetry
        run: pip install poetry>=1.5.0

      - name: Install Dependencies
        run: poetry install --without dev

      - name: Build
        run: poetry build

      - name: Publish
        run: poetry publish -u __token__ -p ${{ secrets.PYPI_TOKEN_V2 }}

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

name: Publish
 
on:
  release:
    types:
      - created
 
jobs:
  publish:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"
 
      - uses: actions/checkout@v4
 
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          cache: 'pip'
          python-version: "3.11"
 
      - name: Install poetry
        run: pip install poetry>=1.5.0
 
      - name: Install Dependencies
        run: poetry install --without dev
 
      - name: Build
        run: poetry build
 
      - name: Publish
        run: poetry publish -u __token__ -p ${{ secrets.PYPI_TOKEN_V2 }}
 

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.
• Cache dependency installs on the setup step so they are served from cache.
• 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