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Module: ecr-public

Terraform module to provision a Public AWS ECR Docker Container registry.

Usage​

The module creates one or more Elastic Container Registry (ECR) Public repositories. Please note that this module can only be provisioned in the US-EAST-1 region.

Write access to the repositories is granted to via the principals_full_access list, which is a list of strings that can designate any valid AWS Principal. This module only creates the Repository Policy allowing those Principals access. The Principals will still separately need IAM policies allowing them permission to execute ECR actions against the repository. For more details, see How Amazon Elastic Container Registry Works with IAM.

Include this repository as a module in your existing terraform code:

# IAM Role to be granted ECR permissions
data "aws_iam_role" "ecrpublic" {
  name = "ecr"
}

module "ecrpublic" {
  source = "cloudposse/ecr-public/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  namespace              = "eg"
  stage                  = "test"
  name                   = "ecr"
  principals_full_access = [data.aws_iam_role.ecr.arn]
  repository_configs     = [
    {
      name              = "foo"
      description       = "The repository for the foo image"
      about_text        = null
      usage_text        = null
      architectures     = ["AMD64"]
      operating_systems = ["Linux"]
    },
  ]
}

Variables​

Required Variables​

repository_configs required

name: List of Docker local image names, used as repository names for AWS ECR


description: A short description of the contents of the repository. This text appears in both the image details and
also when searching for repositories on the Amazon ECR Public Gallery.


about_text: A detailed description of the contents of the repository. It is publicly visible in the Amazon ECR Public
Gallery. The text must be in markdown format.


usage_text: Detailed information on how to use the contents of the repository. It is publicly visible in the Amazon
ECR Public Gallery. The usage text provides context, support information, and additional usage details for users of
the repository. The text must be in markdown format.


architectures: The system architecture that the images in the repository are compatible with. On the Amazon ECR
Public Gallery, the following supported architectures will appear as badges on the repository and are used as search
filters: ARM, ARM 64, x86, x86-64


operating_systems: The operating systems that the images in the repository are compatible with. On the Amazon ECR
Public Gallery, the following supported operating systems will appear as badges on the repository and are used as
search filters: Linux, Windows


logo_image_blob: The base64-encoded repository logo payload. (Only visible for verified accounts) Note that drift
detection is disabled for this attribute.



Type:

list(object({
name              = string
description       = string
about_text        = string
usage_text        = string
architectures     = list(string)
operating_systems = list(string)
logo_image_blob   = string
}))

Optional Variables​

principals_full_access (list(string)) optional

Principal ARNs to provide with full access to the ECR


Default value: [ ]

principals_readonly_access (list(string)) optional

Principal ARNs to provide with readonly access to the ECR


Default value: [ ]

use_fullname (bool) optional

Set 'true' to use namespace-stage-name for ecr repository name, else name


Default value: true

Context Variables​

The following variables are defined in the context.tf file of this module and part of the terraform-null-label pattern.

additional_tag_map (map(string)) optional

Additional key-value pairs to add to each map in tags_as_list_of_maps. Not added to tags or id.
This is for some rare cases where resources want additional configuration of tags
and therefore take a list of maps with tag key, value, and additional configuration.


Required: No

Default value: { }

attributes (list(string)) optional

ID element. Additional attributes (e.g. workers or cluster) to add to id,
in the order they appear in the list. New attributes are appended to the
end of the list. The elements of the list are joined by the delimiter
and treated as a single ID element.


Required: No

Default value: [ ]

context (any) optional

Single object for setting entire context at once.
See description of individual variables for details.
Leave string and numeric variables as null to use default value.
Individual variable settings (non-null) override settings in context object,
except for attributes, tags, and additional_tag_map, which are merged.


Required: No

Default value:

{
  "additional_tag_map": {},
  "attributes": [],
  "delimiter": null,
  "descriptor_formats": {},
  "enabled": true,
  "environment": null,
  "id_length_limit": null,
  "label_key_case": null,
  "label_order": [],
  "label_value_case": null,
  "labels_as_tags": [
    "unset"
  ],
  "name": null,
  "namespace": null,
  "regex_replace_chars": null,
  "stage": null,
  "tags": {},
  "tenant": null
}
delimiter (string) optional

Delimiter to be used between ID elements.
Defaults to - (hyphen). Set to "" to use no delimiter at all.


Required: No

Default value: null

descriptor_formats (any) optional

Describe additional descriptors to be output in the descriptors output map.
Map of maps. Keys are names of descriptors. Values are maps of the form
\{<br/> format = string<br/> labels = list(string)<br/> \}
(Type is any so the map values can later be enhanced to provide additional options.)
format is a Terraform format string to be passed to the format() function.
labels is a list of labels, in order, to pass to format() function.
Label values will be normalized before being passed to format() so they will be
identical to how they appear in id.
Default is {} (descriptors output will be empty).


Required: No

Default value: { }

enabled (bool) optional

Set to false to prevent the module from creating any resources
Required: No

Default value: null

environment (string) optional

ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'
Required: No

Default value: null

id_length_limit (number) optional

Limit id to this many characters (minimum 6).
Set to 0 for unlimited length.
Set to null for keep the existing setting, which defaults to 0.
Does not affect id_full.


Required: No

Default value: null

label_key_case (string) optional

Controls the letter case of the tags keys (label names) for tags generated by this module.
Does not affect keys of tags passed in via the tags input.
Possible values: lower, title, upper.
Default value: title.


Required: No

Default value: null

label_order (list(string)) optional

The order in which the labels (ID elements) appear in the id.
Defaults to ["namespace", "environment", "stage", "name", "attributes"].
You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.


Required: No

Default value: null

label_value_case (string) optional

Controls the letter case of ID elements (labels) as included in id,
set as tag values, and output by this module individually.
Does not affect values of tags passed in via the tags input.
Possible values: lower, title, upper and none (no transformation).
Set this to title and set delimiter to "" to yield Pascal Case IDs.
Default value: lower.


Required: No

Default value: null

labels_as_tags (set(string)) optional

Set of labels (ID elements) to include as tags in the tags output.
Default is to include all labels.
Tags with empty values will not be included in the tags output.
Set to [] to suppress all generated tags.
Notes:
The value of the name tag, if included, will be the id, not the name.
Unlike other null-label inputs, the initial setting of labels_as_tags cannot be
changed in later chained modules. Attempts to change it will be silently ignored.


Required: No

Default value:

[
  "default"
]
name (string) optional

ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.
This is the only ID element not also included as a tag.
The "name" tag is set to the full id string. There is no tag with the value of the name input.


Required: No

Default value: null

namespace (string) optional

ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique
Required: No

Default value: null

regex_replace_chars (string) optional

Terraform regular expression (regex) string.
Characters matching the regex will be removed from the ID elements.
If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits.


Required: No

Default value: null

stage (string) optional

ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'
Required: No

Default value: null

tags (map(string)) optional

Additional tags (e.g. {'BusinessUnit': 'XYZ'}).
Neither the tag keys nor the tag values will be modified by this module.


Required: No

Default value: { }

tenant (string) optional

ID element (Rarely used, not included by default). A customer identifier, indicating who this instance of a resource is for
Required: No

Default value: null

Outputs​

registry_id

Registry ID

repository_arn

ARN of first repository created

repository_arn_map

Map of repository names to repository ARNs

repository_name

Name of first repository created

repository_url

URL of first repository created

repository_url_map

Map of repository names to repository URLs

Dependencies​

Requirements​

  • terraform, version: >= 0.13.0
  • aws, version: >= 3.1

Providers​

  • aws, version: >= 3.1

Modules​

NameVersionSourceDescription
this0.25.0cloudposse/label/nulln/a

Resources​

The following resources are used by this module:

Data Sources​

The following data sources are used by this module: