Awesome

This component is responsible for provisioning repositories, lifecycle rules, and permissions for streamlined ECR usage. This utilizes the roles-to-principals submodule to assign accounts to various roles. It is also compatible with the GitHub Actions IAM Role mixin.

[!WARNING]

Older versions of our reference architecture have aneks-iam component that needs to be updated to provide sufficient IAM roles to allow pods to pull from ECR repos

Usage

Stack Level: Regional

Here's an example snippet for how to use this component. This component is normally only applied once as the resources it creates are globally accessible, but you may want to create ECRs in multiple regions for redundancy. This is typically provisioned via the stack for the "artifact" account (typically auto, artifact, or corp) in the primary region.

components:
  terraform:
    ecr:
      vars:
        ecr_user_enabled: false
        enable_lifecycle_policy: true
        max_image_count: 500
        scan_images_on_push: true
        protected_tags:
          - prod
        image_tag_mutability: MUTABLE

        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: ["*"]

Requirements

Name	Version
<a name="requirement_terraform"></a> terraform	>= 1.0.0
<a name="requirement_aws"></a> aws	>= 4.9.0

Providers

Name	Version
<a name="provider_aws"></a> aws	>= 4.9.0

Modules

Name	Source	Version
<a name="module_ecr"></a> ecr	cloudposse/ecr/aws	0.36.0
<a name="module_full_access"></a> full_access	../account-map/modules/roles-to-principals	n/a
<a name="module_iam_roles"></a> iam_roles	../account-map/modules/iam-roles	n/a
<a name="module_readonly_access"></a> readonly_access	../account-map/modules/roles-to-principals	n/a
<a name="module_this"></a> this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_iam_policy.ecr_user	resource
aws_iam_user.ecr	resource
aws_iam_user_policy_attachment.ecr_user	resource
aws_iam_policy_document.ecr_user	data source

Inputs

Name	Description	Type	Default	Required
<a name="input_additional_tag_map"></a> additional_tag_map	Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.<br/>This is for some rare cases where resources want additional configuration of tags<br/>and therefore take a list of maps with tag key, value, and additional configuration.	`map(string)`	`{}`	no
<a name="input_attributes"></a> attributes	ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br/>in the order they appear in the list. New attributes are appended to the<br/>end of the list. The elements of the list are joined by the `delimiter`<br/>and treated as a single ID element.	`list(string)`	`[]`	no
<a name="input_context"></a> context	Single object for setting entire context at once.<br/>See description of individual variables for details.<br/>Leave string and numeric variables as `null` to use default value.<br/>Individual variable settings (non-null) override settings in context object,<br/>except for attributes, tags, and additional_tag_map, which are merged.	`any`	<pre>{<br/> "additional_tag_map": {},<br/> "attributes": [],<br/> "delimiter": null,<br/> "descriptor_formats": {},<br/> "enabled": true,<br/> "environment": null,<br/> "id_length_limit": null,<br/> "label_key_case": null,<br/> "label_order": [],<br/> "label_value_case": null,<br/> "labels_as_tags": [<br/> "unset"<br/> ],<br/> "name": null,<br/> "namespace": null,<br/> "regex_replace_chars": null,<br/> "stage": null,<br/> "tags": {},<br/> "tenant": null<br/>}</pre>	no
<a name="input_delimiter"></a> delimiter	Delimiter to be used between ID elements.<br/>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all.	`string`	`null`	no
<a name="input_descriptor_formats"></a> descriptor_formats	Describe additional descriptors to be output in the `descriptors` output map.<br/>Map of maps. Keys are names of descriptors. Values are maps of the form<br/>`{<br/> format = string<br/> labels = list(string)<br/>}`<br/>(Type is `any` so the map values can later be enhanced to provide additional options.)<br/>`format` is a Terraform format string to be passed to the `format()` function.<br/>`labels` is a list of labels, in order, to pass to `format()` function.<br/>Label values will be normalized before being passed to `format()` so they will be<br/>identical to how they appear in `id`.<br/>Default is `{}` (`descriptors` output will be empty).	`any`	`{}`	no
<a name="input_ecr_user_enabled"></a> ecr_user_enabled	Enable/disable the provisioning of the ECR user (for CI/CD systems that don't support assuming IAM roles to access ECR, e.g. Codefresh)	`bool`	`false`	no
<a name="input_enable_lifecycle_policy"></a> enable_lifecycle_policy	Enable/disable image lifecycle policy	`bool`	n/a	yes
<a name="input_enabled"></a> enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
<a name="input_environment"></a> environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	`string`	`null`	no
<a name="input_id_length_limit"></a> id_length_limit	Limit `id` to this many characters (minimum 6).<br/>Set to `0` for unlimited length.<br/>Set to `null` for keep the existing setting, which defaults to `0`.<br/>Does not affect `id_full`.	`number`	`null`	no
<a name="input_image_tag_mutability"></a> image_tag_mutability	The tag mutability setting for the repository. Must be one of: `MUTABLE` or `IMMUTABLE`	`string`	`"MUTABLE"`	no
<a name="input_images"></a> images	List of image names (ECR repo names) to create repos for	`list(string)`	n/a	yes
<a name="input_label_key_case"></a> label_key_case	Controls the letter case of the `tags` keys (label names) for tags generated by this module.<br/>Does not affect keys of tags passed in via the `tags` input.<br/>Possible values: `lower`, `title`, `upper`.<br/>Default value: `title`.	`string`	`null`	no
<a name="input_label_order"></a> label_order	The order in which the labels (ID elements) appear in the `id`.<br/>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br/>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	`list(string)`	`null`	no
<a name="input_label_value_case"></a> label_value_case	Controls the letter case of ID elements (labels) as included in `id`,<br/>set as tag values, and output by this module individually.<br/>Does not affect values of tags passed in via the `tags` input.<br/>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br/>Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.<br/>Default value: `lower`.	`string`	`null`	no
<a name="input_labels_as_tags"></a> labels_as_tags	Set of labels (ID elements) to include as tags in the `tags` output.<br/>Default is to include all labels.<br/>Tags with empty values will not be included in the `tags` output.<br/>Set to `[]` to suppress all generated tags.<br/>Notes:<br/> The value of the `name` tag, if included, will be the `id`, not the `name`.<br/> Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be<br/> changed in later chained modules. Attempts to change it will be silently ignored.	`set(string)`	<pre>[<br/> "default"<br/>]</pre>	no
<a name="input_max_image_count"></a> max_image_count	Max number of images to store. Old ones will be deleted to make room for new ones.	`number`	n/a	yes
<a name="input_name"></a> name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br/>This is the only ID element not also included as a `tag`.<br/>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input.	`string`	`null`	no
<a name="input_namespace"></a> namespace	ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique	`string`	`null`	no
<a name="input_principals_lambda"></a> principals_lambda	Principal account IDs of Lambdas allowed to consume ECR	`list(string)`	`[]`	no
<a name="input_protected_tags"></a> protected_tags	Tags to refrain from deleting	`list(string)`	`[]`	no
<a name="input_read_only_account_role_map"></a> read_only_account_role_map	Map of `account:[role, role...]` for read-only access. Use `*` for role to grant access to entire account	`map(list(string))`	`{}`	no
<a name="input_read_write_account_role_map"></a> read_write_account_role_map	Map of `account:[role, role...]` for write access. Use `*` for role to grant access to entire account	`map(list(string))`	n/a	yes
<a name="input_regex_replace_chars"></a> regex_replace_chars	Terraform regular expression (regex) string.<br/>Characters matching the regex will be removed from the ID elements.<br/>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.	`string`	`null`	no
<a name="input_region"></a> region	AWS Region	`string`	n/a	yes
<a name="input_scan_images_on_push"></a> scan_images_on_push	Indicates whether images are scanned after being pushed to the repository	`bool`	`false`	no
<a name="input_stage"></a> stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
<a name="input_tags"></a> tags	Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br/>Neither the tag keys nor the tag values will be modified by this module.	`map(string)`	`{}`	no
<a name="input_tenant"></a> tenant	ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for	`string`	`null`	no

Outputs

Name	Description
<a name="output_ecr_repo_arn_map"></a> ecr_repo_arn_map	Map of image names to ARNs
<a name="output_ecr_repo_url_map"></a> ecr_repo_url_map	Map of image names to URLs
<a name="output_ecr_user_arn"></a> ecr_user_arn	ECR user ARN
<a name="output_ecr_user_name"></a> ecr_user_name	ECR user name
<a name="output_ecr_user_unique_id"></a> ecr_user_unique_id	ECR user unique ID assigned by AWS
<a name="output_repository_host"></a> repository_host	ECR repository name

References

cloudposse/terraform-aws-components - Cloud Posse's upstream component

[!TIP]

👽 Use Atmos with Terraform

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<details> <summary>Watch demo of using Atmos with Terraform</summary> <img src="https://github.com/cloudposse/atmos/blob/main/docs/demo.gif?raw=true"/> Example of running <a href="https://atmos.tools"><code>atmos</code></a> to manage infrastructure from our <a href="https://atmos.tools/quick-start/">Quick Start</a> tutorial. </detalis>

Related Projects

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Cloud Posse Terraform Modules - Our collection of reusable Terraform modules used by our reference architectures.
Atmos - Atmos is like docker-compose but for your infrastructure

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