action.yml

name: "Skyhook Ensure ECR Repository"
description: "Ensures an Amazon ECR repository exists, creating it if necessary. Requires AWS credentials to be configured."
author: "Skyhook"

branding:
  icon: "package"
  color: "purple"

inputs:
  repository-name:
    description: "The name of the ECR repository to ensure exists"
    required: true
  aws-region:
    description: "The AWS region where the ECR repository should exist"
    required: true

outputs:
  repository-exists:
    description: "Whether the repository existed before this action ran"
    value: ${{ steps.ensure-repo.outputs.repository-exists }}
  repository-uri:
    description: "The URI of the ECR repository"
    value: ${{ steps.ensure-repo.outputs.repository-uri }}

runs:
  using: "composite"
  steps:
    - name: Ensure ECR Repository Exists
      id: ensure-repo
      env:
        AWS_REGION: ${{ inputs.aws-region }}
        AWS_DEFAULT_REGION: ${{ inputs.aws-region }}
        REPO_NAME: ${{ inputs.repository-name }}
      shell: bash
      run: |
        # Display configuration
        echo "Ensuring ECR repository exists:"
        echo "  AWS Region: $AWS_REGION"
        echo "  Repository Name: $REPO_NAME"

        # Validate inputs
        if [ -z "$AWS_REGION" ] || [ -z "$REPO_NAME" ]; then
          echo "❌ Missing required inputs. aws-region and repository-name are required."
          exit 1
        fi

        # Check if the repository already exists, capture both output and error
        repo_result=$(aws ecr describe-repositories --repository-names $REPO_NAME 2>&1 || true)

        if [[ $repo_result == *"RepositoryNotFoundException"* ]]; then
          # Repository does not exist, create it
          echo "ℹ️ Repository '$REPO_NAME' does not exist. Creating it now."
          if ! aws ecr create-repository --repository-name $REPO_NAME; then
            echo "❌ Error creating ECR repository."
            exit 1
          fi
          echo "✅ ECR repository created successfully."
          echo "repository-exists=false" >> $GITHUB_OUTPUT
        elif [[ $repo_result == *"AccessDeniedException"* ]]; then
          # Access denied
          echo "❌ Access denied to describe ECR repository. Check your AWS permissions."
          exit 1
        elif [[ $repo_result == *"repositories"* ]]; then
          # Success response contains "repositories" - repo exists
          echo "✅ Repository '$REPO_NAME' already exists. Skipping creation."
          echo "repository-exists=true" >> $GITHUB_OUTPUT
        else
          # Other errors
          echo "❌ Unexpected error checking repository: $repo_result"
          exit 1
        fi

        # Get repository URI for output
        repo_uri=$(aws ecr describe-repositories --repository-names $REPO_NAME --query 'repositories[0].repositoryUri' --output text)
        echo "repository-uri=$repo_uri" >> $GITHUB_OUTPUT
        echo "Repository URI: $repo_uri"