Build and Push Docker Images workflow (huggingface/OpenEnv)
The Build and Push Docker Images workflow from huggingface/OpenEnv, explained and optimized by Latchkey.
C
CI health: C - fair
Point runs-on at Latchkey and get run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the Build and Push Docker Images workflow from the huggingface/OpenEnv 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: Build and Push Docker Images
on:
push:
branches:
- main
paths:
- 'envs/**/Dockerfile'
- 'envs/**/*.py'
- '.github/workflows/docker-build.yml'
workflow_dispatch: # Allow manual trigger
env:
REGISTRY: ghcr.io
IMAGE_PREFIX: ${{ github.repository_owner }}/openenv
jobs:
# Job 1: Build base image first
build-base:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
steps:
- name: Checkout code
uses: actions/checkout@v7
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v4
- name: Log in to GHCR
uses: docker/login-action@v4
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Extract metadata for base image
id: meta
uses: docker/metadata-action@v6
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-base
tags: |
type=raw,value=latest,enable={{is_default_branch}}
type=sha
- name: Build and push base image
uses: docker/build-push-action@v7
with:
context: .
file: src/openenv/core/containers/images/Dockerfile
push: true
platforms: linux/amd64,linux/arm64
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
cache-from: type=gha,scope=base
cache-to: type=gha,mode=max,scope=base
# Job 2: Build environment images (depends on base)
build-envs:
runs-on: ubuntu-latest
needs: build-base # Wait for base image to be built
permissions:
contents: read
packages: write
strategy:
fail-fast: false
matrix:
image:
- name: echo-env
dockerfile: envs/echo_env/server/Dockerfile
context: envs/echo_env
- name: chat-env
dockerfile: envs/chat_env/server/Dockerfile
context: envs/chat_env
- name: coding-env
dockerfile: envs/coding_env/server/Dockerfile
- name: sumo-rl-env
dockerfile: envs/sumo_rl_env/server/Dockerfile
context: envs/sumo_rl_env
- name: atari-env
dockerfile: envs/atari_env/server/Dockerfile
context: envs/atari_env
- name: git-env
dockerfile: envs/git_env/server/Dockerfile
context: envs/git_env
- name: connect4_env
dockerfile: envs/connect4_env/server/Dockerfile
context: envs/connect4_env
- name: chess-env
dockerfile: envs/chess_env/server/Dockerfile
context: envs/chess_env
- name: tbench2-env
dockerfile: envs/tbench2_env/server/Dockerfile
context: envs/tbench2_env
- name: textarena-env
dockerfile: envs/textarena_env/server/Dockerfile
context: envs/textarena_env
- name: browsergym-env
dockerfile: envs/browsergym_env/server/Dockerfile
context: envs/browsergym_env
- name: snake-env
dockerfile: envs/snake_env/server/Dockerfile
context: envs/snake_env
- name: unity-env
dockerfile: envs/unity_env/server/Dockerfile
context: envs/unity_env
- name: opencode-env
dockerfile: envs/opencode_env/server/Dockerfile
context: envs/opencode_env
- name: openapp-env
dockerfile: envs/openapp_env/server/Dockerfile
context: envs/openapp_env
- name: maze-env
dockerfile: envs/maze_env/server/Dockerfile
context: envs/maze_env
- name: openspiel-env
dockerfile: envs/openspiel_env/server/Dockerfile
context: envs/openspiel_env
steps:
- name: Checkout code
uses: actions/checkout@v7
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v4
- name: Log in to GHCR
uses: docker/login-action@v4
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Extract metadata
id: meta
uses: docker/metadata-action@v6
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-${{ matrix.image.name }}
tags: |
type=raw,value=latest,enable={{is_default_branch}}
type=sha
- name: Build and push environment image
uses: docker/build-push-action@v7
with:
context: ${{ matrix.image.context || '.' }}
file: ${{ matrix.image.dockerfile }}
push: true
platforms: linux/amd64,linux/arm64
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
cache-from: type=gha,scope=${{ matrix.image.name }}
cache-to: type=gha,mode=max,scope=${{ matrix.image.name }}
build-args: |
BASE_IMAGE=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-base:latest
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: Build and Push Docker Images on: push: branches: - main paths: - 'envs/**/Dockerfile' - 'envs/**/*.py' - '.github/workflows/docker-build.yml' workflow_dispatch: # Allow manual trigger env: REGISTRY: ghcr.io IMAGE_PREFIX: ${{ github.repository_owner }}/openenv concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: # Job 1: Build base image first build-base: timeout-minutes: 30 runs-on: latchkey-small permissions: contents: read packages: write steps: - name: Checkout code uses: actions/checkout@v7 - name: Set up Docker Buildx uses: docker/setup-buildx-action@v4 - name: Log in to GHCR uses: docker/login-action@v4 with: registry: ${{ env.REGISTRY }} username: ${{ github.actor }} password: ${{ secrets.GITHUB_TOKEN }} - name: Extract metadata for base image id: meta uses: docker/metadata-action@v6 with: images: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-base tags: | type=raw,value=latest,enable={{is_default_branch}} type=sha - name: Build and push base image uses: docker/build-push-action@v7 with: context: . file: src/openenv/core/containers/images/Dockerfile push: true platforms: linux/amd64,linux/arm64 tags: ${{ steps.meta.outputs.tags }} labels: ${{ steps.meta.outputs.labels }} cache-from: type=gha,scope=base cache-to: type=gha,mode=max,scope=base # Job 2: Build environment images (depends on base) build-envs: timeout-minutes: 30 runs-on: latchkey-small needs: build-base # Wait for base image to be built permissions: contents: read packages: write strategy: fail-fast: false matrix: image: - name: echo-env dockerfile: envs/echo_env/server/Dockerfile context: envs/echo_env - name: chat-env dockerfile: envs/chat_env/server/Dockerfile context: envs/chat_env - name: coding-env dockerfile: envs/coding_env/server/Dockerfile - name: sumo-rl-env dockerfile: envs/sumo_rl_env/server/Dockerfile context: envs/sumo_rl_env - name: atari-env dockerfile: envs/atari_env/server/Dockerfile context: envs/atari_env - name: git-env dockerfile: envs/git_env/server/Dockerfile context: envs/git_env - name: connect4_env dockerfile: envs/connect4_env/server/Dockerfile context: envs/connect4_env - name: chess-env dockerfile: envs/chess_env/server/Dockerfile context: envs/chess_env - name: tbench2-env dockerfile: envs/tbench2_env/server/Dockerfile context: envs/tbench2_env - name: textarena-env dockerfile: envs/textarena_env/server/Dockerfile context: envs/textarena_env - name: browsergym-env dockerfile: envs/browsergym_env/server/Dockerfile context: envs/browsergym_env - name: snake-env dockerfile: envs/snake_env/server/Dockerfile context: envs/snake_env - name: unity-env dockerfile: envs/unity_env/server/Dockerfile context: envs/unity_env - name: opencode-env dockerfile: envs/opencode_env/server/Dockerfile context: envs/opencode_env - name: openapp-env dockerfile: envs/openapp_env/server/Dockerfile context: envs/openapp_env - name: maze-env dockerfile: envs/maze_env/server/Dockerfile context: envs/maze_env - name: openspiel-env dockerfile: envs/openspiel_env/server/Dockerfile context: envs/openspiel_env steps: - name: Checkout code uses: actions/checkout@v7 - name: Set up Docker Buildx uses: docker/setup-buildx-action@v4 - name: Log in to GHCR uses: docker/login-action@v4 with: registry: ${{ env.REGISTRY }} username: ${{ github.actor }} password: ${{ secrets.GITHUB_TOKEN }} - name: Extract metadata id: meta uses: docker/metadata-action@v6 with: images: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-${{ matrix.image.name }} tags: | type=raw,value=latest,enable={{is_default_branch}} type=sha - name: Build and push environment image uses: docker/build-push-action@v7 with: context: ${{ matrix.image.context || '.' }} file: ${{ matrix.image.dockerfile }} push: true platforms: linux/amd64,linux/arm64 tags: ${{ steps.meta.outputs.tags }} labels: ${{ steps.meta.outputs.labels }} cache-from: type=gha,scope=${{ matrix.image.name }} cache-to: type=gha,mode=max,scope=${{ matrix.image.name }} build-args: | BASE_IMAGE=${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-base:latest
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 useslatchkey-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.
4 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.
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:
- Container pulls and builds
This workflow runs 2 jobs (18 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.