GitHub Actions#

GitHub Actions is a continuous integration and continuous delivery (CI/CD) platform that allows you to automate your build, test, and deployment pipeline. You can create various workflows to accelerate and simplify the BentoML workflow by automating important operations, such as building and deploying Bentos.

Set up BentoML#

You can create a GitHub Action to bootstrap BentoML and any necessary supporting tools to run BentoML in a CI process.

To use it, define a workflow file as below:

name: ci
on:
  push:
    branches:
      - 'main'
jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - uses: bentoml/setup-bentoml-action@v1
        with:
          python-version: '3.10'
          bentoml-version: 'main'

Once triggered, this workflow sets up BentoML in an Ubuntu environment, ensuring that it’s using Python 3.10 and the main branch version of BentoML. For more information, see the setup-bentoml-action repository.

Deploy Bentos to the cloud#

You can create a GitHub Actions workflow to automate the process of building Bentos and deploying them to the cloud.

To use it, define a workflow file as below:

name: Deploy Bento
on:
  push:
    tags:
      - v*

jobs:
  build_and_deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - uses: actions/setup-python@v4
        with:
          python-version: '3.10'
          cache: 'pip'

      - name: Build and Deploy
        uses: bentoml/deploy-bento-action@main
        with:
          deployment_name: test-iris
          cloud_api_token: ${{ secrets.CLOUD_API_TOKEN }}
          cloud_endpoint: ${{ secrets.CLOUD_ENDPOINT }}

The workflow bentoml/deploy-bento-action requires cloud_api_token and cloud_endpoint. You can set the repository secrets to make sure the job has correct privilege.

Build Bentos from a GitHub repository#

You can create a GitHub Action workflow to automate the process of building Bentos either from a GitHub repository or from a specified context path.

To use it, define a workflow file as below:

name: ci
on:
  push:
    branches:
      - 'main'
jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - uses: bentoml/setup-bentoml-action@v1
        with:
          python-version: '3.10'
          bentoml-version: 'main'
      - uses: bentoml/build-bento-action@v1
        id: bento
      - run: |
        echo "Bento tag: ${{ steps.bento.outputs.bento-tag }}"
        echo "Bento name: ${{ steps.bento.outputs.bento-name }}"
        echo "Bento version: ${{ steps.bento.outputs.bento-version }}"
        echo "Bento metadata: ${{ steps.bento.outputs.bento-metadata }}"

This workflow first uses the BentoML setup workflow to prepare the necessary environment and then builds the Bento using the default GitHub context. To specify a different context, set the context path:

- uses: bentoml/build-bento-action@v1
  with:
    context: 'path/to/context'

To specify a version, use the version field:

- uses: bentoml/build-bento-action@v1
  with:
    version: '1.0.0'

To specify a different bentofile.yaml file, use the bentofile field:

- uses: bentoml/build-bento-action@v1
  with:
    bentofile: 'path/to/bentofile'

Note

bentofile must be a path relative to the context directory.

For more information, see the build-bento-action repository.

Create and push Bento images to a container registry#

You can create a GitHub Actions workflow to create and push Bento images to any container registry (Docker Hub, GHCR, ECR, GCR, etc.). This workflow uses Docker Buildx, which offers extended capabilities for building containers and is enhanced by the Moby BuildKit builder toolkit.

To use it, define a workflow file as below:

name: ci
on:
  push:
    branches:
      - 'main'
jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - uses: bentoml/setup-bentoml-action@v1
        with:
          python-version: '3.10'
          bentoml-version: 'main'
          cache: 'pip'
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      - name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - uses: bentoml/build-bento-action@v1
        id: bento
      - name: Build and push BentoContainer
        uses: bentoml/containerize-push-action@v1
        with:
          bento-tag: ${{ steps.bento.outputs.bento-tag }}
          push: true
          tags: user/app:latest

In this example, the workflow first uses the BentoML setup workflow to prepare the necessary environment. It then sets up Docker QEMU and Docker Buildx, and configures Docker Hub authentication. Lastly, it builds a Bento, creates a Docker image, and pushes it to Docker Hub.

Note

The workflow is essentially an adaptation of Docker’s build-push-action, specifically tailored for implementing Bento containerization. You can also use docker/login-action@v2 to log in to other container registries supported by that action. Refer to the login action for more information.