acr-build/README.md

Build images with Azure Container Registry

This action can be used to build containers using an Azure Container Registry.

Action capabilities

Following the capabilities of this action:

• Custom Dockerfile path: It is possible to specify a path for the Dockerfile

• Build context: Allows to specify the build context for the image

• Default tag: The action will default to use the first 8 characters of the commit SHA if no tag is specified

• Private repositories:: It is possible to use private Github repositories by providing a github_token

Action inputs:

Action inputs	Description	Default
dockerfile	(Optional) Path to the Dockerfile relative to `folder`	./Dockerfile
folder	(Optional) Build context for Docker agent	./
branch	(Optional) Branch to root the context off of	master
repository	(Mandatory) The repository on the Azure Container Registry
image	(Mandatory) Docker image name
tag	(Optional) Docker image tag	GITHUB_SHA::8
git_access_token	(Optional) The Github access token for private repositories	GITHUB_SHA::8
registry	(Mandatory)The Azure Container Registry name
tenant	(Mandatory)The ACR tenant
service_principal	(Mandatory) The Service Principal credentials
service_principal_password	(Mandatory) The Service Principal credentials
build_args	(Optional) Build arguments

Example usage

Create an SP with Contributor access to the Azure Container Registry

az ad sp create-for-rbac -n "acrtask0" --skip-assignment
az role assignment create --assignee <spID> --scope <resourceID of the ACR> --role "Contributor"

In your repository, create the following secrets (or set them in clear in the workflow definition):

• service_principal
• service_principal_password
• tenant
• registry
• repository
• (optional, for accessing private repositories) git_access_token

In .github/workflows create a workflow file like the following:

name: build_image
on:
  push:
    paths:
      - "src/docker/**"
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: ACR build
        id: acr
        uses: azure/acr-build@v1
        with:
          service_principal: ${{ secrets.service_principal }}
          service_principal_password: ${{ secrets.service_principal_password }}
          tenant: ${{ secrets.tenant }}
          registry: ${{ secrets.registry }}
          repository: ${{ secrets.repository }}
          image: image
          git_access_token: ${{ secrets.git_access_token }}
          folder: src/docker
          dockerfile: ../../dockerfiles/Dockerfile
          branch: main
          build_args: '[{"arg_one":"value_one"}, {"arg_two":"value_two"}]'

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.