action.yml

name: Login Amazon ECR and Setup ECR Private Repository
description: Logs into Amazon ECR and create a repository if it doesn't exist.
branding:
  icon: cloud
  color: orange

inputs:
  RepositoryName:
    description: The name to use for the private repository.
    required: true
  ImageTagMutability:
    description: The tag mutability setting for the repository. This input is always applied.
    required: false
  AwsRegion:
    description: AWS Region, e.g. us-east-2
    required: false
  RegistryId:
    description: Repository's Registry ID (AWS Account ID)
    required: false

runs:
  using: composite

  steps:
    - shell: bash
      run: aws sts get-caller-identity >/dev/null

    - shell: bash
      id: aws
      run: |
        if [ -z "${{ inputs.AwsRegion }}" ]; then
          REGION=$AWS_REGION
        else
          REGION=${{ inputs.AwsRegion }}
        fi
        echo "region=$REGION" >> "$GITHUB_OUTPUT"

        if [ -z "${{ inputs.RegistryId }}" ]; then
          REGISTRY_ID=$(aws sts get-caller-identity --query Account --output text)
        else
          REGISTRY_ID=${{ inputs.RegistryId }}
        fi
        echo "registry_id=$REGISTRY_ID" >> "$GITHUB_OUTPUT"

    - shell: bash
      id: repository
      run: |
        if aws ecr describe-repositories --repository-name ${{ inputs.RepositoryName }} --region ${{ steps.aws.outputs.region }} --registry-id ${{ steps.aws.outputs.registry_id }} >/dev/null 2>&1; then
          exit 0
        fi

        aws ecr create-repository --repository-name ${{ inputs.RepositoryName }} --region ${{ steps.aws.outputs.region }} --registry-id ${{ steps.aws.outputs.registry_id }} >/dev/null

    - shell: bash
      run: |
        TagMutability="${{ inputs.ImageTagMutability }}"
        if [[ -z "$TagMutability" ]]; then
          exit 0
        fi

        if [[ "$TagMutability" != "MUTABLE" && "$TagMutability" != "IMMUTABLE" ]]; then
          echo "::error title=Invalid Input::ImageTagMutability Input must be either MUTABLE or IMMUTABLE."
          exit 1
        fi

        CURRENT_SETTING=$(aws ecr describe-repositories --repository-names ${{ inputs.RepositoryName }} --region ${{ steps.aws.outputs.region }} --registry-id ${{ steps.aws.outputs.registry_id }} --query 'repositories[0].imageTagMutability' --output text)

        if [ "$CURRENT_SETTING" == "$TagMutability" ]; then
          exit 0
        fi

        aws ecr put-image-tag-mutability --repository-name ${{ inputs.RepositoryName }} --image-tag-mutability $TagMutability --region ${{ steps.aws.outputs.region }} --registry-id ${{ steps.aws.outputs.registry_id }} >/dev/null