### Install and Run Pre-commit Hooks

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/AGENTS.md

Installs the pre-commit framework locally and then runs all configured hooks, including terraform_fmt, terraform_docs, and tflint. Ensures code is formatted and linted before committing.

```bash
pre-commit install && pre-commit run -a
```

--------------------------------

### Initialize TFLint

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/AGENTS.md

Initializes the TFLint static analysis tool based on the configuration defined in the .tflint.hcl file. This step is necessary before running TFLint checks.

```bash
tflint --init
```

--------------------------------

### Explore Additional Atmos Test Options

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/README.md

View available options and commands for running Terraform tests with Atmos. Use this to understand advanced configurations and parameters.

```bash
atmos test --help
```

--------------------------------

### Generate Simple README.md with Atmos

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/AGENTS.md

Regenerates a simplified README.md file specifically for the src/ directory using README.yaml and Terraform source. This is useful for component-level documentation.

```bash
atmos docs generate readme-simple
```

--------------------------------

### Generate README.md with Atmos

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/AGENTS.md

Regenerates the main README.md file from README.yaml and Terraform source files. Ensure README.yaml is updated when inputs or outputs change.

```bash
atmos docs generate readme
```

--------------------------------

### Run Terratest Suite with Atmos

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/AGENTS.md

Executes the Terratest suite located in the test/ directory. This command creates and destroys real AWS resources, so ensure AWS credentials are configured. Tests may incur costs.

```bash
atmos test run
```

--------------------------------

### Format Terraform Code Recursively

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/AGENTS.md

Applies Terraform formatting rules recursively to all .tf files within the current directory and its subdirectories. This ensures consistent code style.

```bash
terraform fmt -recursive
```

--------------------------------

### Configure ECR Component

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/src/README.md

Use this configuration to define ECR repositories, lifecycle policies, and image tag mutability settings. Specify images to be created and configure account role mappings for read/write and read-only access.

```yaml
components:
  terraform:
    ecr:
      vars:
        ecr_user_enabled: false
        enable_lifecycle_policy: true
        max_image_count: 500
        scan_images_on_push: true
        protected_tags:
          - prod
        # Tag mutability supports: MUTABLE, IMMUTABLE, IMMUTABLE_WITH_EXCLUSION, MUTABLE_WITH_EXCLUSION
        image_tag_mutability: IMMUTABLE_WITH_EXCLUSION
        # When using *_WITH_EXCLUSION, specify exclusions to allow certain tags to be mutable
        image_tag_mutability_exclusion_filter:
          - filter: "latest"
            filter_type: "WILDCARD"
          - filter: "dev-"
            filter_type: "WILDCARD"

        images:
          - infrastructure
          - microservice-a
          - microservice-b
          - microservice-c
        read_write_account_role_map:
          identity:
            - admin
            - cicd
          automation:
            - admin
        read_only_account_role_map:
          corp: ["*"]
          dev: ["*"]
          prod: ["*"]
          stage: ["*"]
```

--------------------------------

### Clean Up Terraform Test Artifacts with Atmos

Source: https://github.com/cloudposse-terraform-components/aws-ecr/blob/main/README.md

Remove temporary files and artifacts generated during Terraform test runs. This command helps maintain a clean testing environment.

```bash
atmos test clean
```

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