README.md

ecr-public-action

ecr-public-action is a Github Action that allows you to docker build, tag and publish to Amazon ECR Public in the Github Action workflow.

with inputs

name	description	default	required
tags	image tags	N/A	yes
dockerfile	the dockerfile	Dockerfile	no
context	the context for docker build	.	no
create_repo	create the public ecr repository if not exist	null	no

Sample

- name: Build and Push to ECR public
  id: build-and-push
  uses: pahud/ecr-public-action@8cd826db40befb59b0cd0b60b22a7ba72d06a7f7
  with:
    tags: |
      public.ecr.aws/d7p2r8s3/${{ steps.repoName.outputs.reponame }}:latest
      public.ecr.aws/d7p2r8s3/${{ steps.repoName.outputs.reponame }}:${{ steps.sha.outputs.sha7 }}

Full Sample

name: ECR
on:
  push:
    branches:
      - main
  schedule:
    - cron: 37 * * * *
  workflow_dispatch: {}

jobs:
  ecr_public:
    runs-on: ubuntu-latest
    name: ECR public action
    steps:
      - name: Get repo name
        id: repoName
        run: echo "::set-output name=reponame::$(echo ${{github.repository}} | cut -d '/' -f 2)"
      - name: Get short SHA
        id: sha
        run: echo "::set-output name=sha7::$(echo ${GITHUB_SHA} | cut -c1-7)"
      - name: Checkout
        uses: actions/checkout@v2
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: us-east-1
      - name: Build and Push to ECR public
        id: build-and-push
        uses: pahud/ecr-public-action@8cd826db40befb59b0cd0b60b22a7ba72d06a7f7
        with:
          dockerfile: .devcontainer/Dockerfile
          context: .devcontainer
          create_repo: ecr_repo_name
          tags: |
            public.ecr.aws/d7p2r8s3/${{ steps.repoName.outputs.reponame }}:latest
            public.ecr.aws/d7p2r8s3/${{ steps.repoName.outputs.reponame }}:${{ steps.sha.outputs.sha7 }}

IAM User and Policies

Create an AWS IAM User with AmazonElasticContainerRegistryPublicPowerUser managed policy only and configure its AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY in the github secrets for this repository.

To manage single repository only

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "ManageRepositoryContents",
            "Effect": "Allow",
            "Action": [
                "ecr-public:DescribeImageTags",
                "ecr-public:DescribeImages",
                "ecr-public:InitiateLayerUpload",
                "ecr-public:DescribeRepositories",
                "ecr-public:UploadLayerPart",
                "ecr-public:PutImage",
                "ecr-public:CompleteLayerUpload",
                "ecr-public:GetRepositoryPolicy",
                "ecr-public:BatchCheckLayerAvailability"
                "ecr-public:CreateRepository"
            ],
            "Resource": "arn:aws:ecr-public::123456789012:repository/my-repo"
        },
        {
            "Sid": "GetAuthorizationToken",
            "Effect": "Allow",
            "Action": [
                "ecr-public:GetAuthorizationToken",
                "sts:GetServiceBearerToken"
            ],
            "Resource": "*"
        }
    ]
}

See Amazon ECR Public managed IAM policies and Amazon ECR identity-based policy examples for more details.