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Terraform module to provision AWS Amplify apps, backend environments, branches, domain associations, and webhooks

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terraform-aws-amplify-app

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Terraform module to provision AWS Amplify apps, backend environments, branches, domain associations, and webhooks.

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Usage

For a complete example, see examples/complete.

For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.

data "aws_ssm_parameter" "github_pat" {
  name            = var.github_personal_access_token_secret_path
  with_decryption = true
}

module "amplify_app" {
  source  = "cloudposse/amplify-app/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version = "x.x.x"

  access_token = data.aws_ssm_parameter.github_pat.value

  description  = "Test Amplify App"
  repository   = "https://github.com/cloudposse/amplify-test2"
  platform     = "WEB"

  enable_auto_branch_creation = false
  enable_branch_auto_build    = true
  enable_branch_auto_deletion = true
  enable_basic_auth           = false

  iam_service_role_enabled    = true

  iam_service_role_actions = [
    "logs:CreateLogStream",
    "logs:CreateLogGroup",
    "logs:DescribeLogGroups",
    "logs:PutLogEvents"
  ]

  auto_branch_creation_patterns = [
    "*",
    "*/**"
  ]

  auto_branch_creation_config = {
    # Enable auto build for the created branches
    enable_auto_build = true
  }

  # The build spec for React
  build_spec = <<-EOT
    version: 0.1
    frontend:
      phases:
        preBuild:
          commands:
            - yarn install
        build:
          commands:
            - yarn run build
      artifacts:
        baseDirectory: build
        files:
          - '**/*'
      cache:
        paths:
          - node_modules/**/*
  EOT

  custom_rules = [
    {
      source = "/<*>"
      status = "404"
      target = "/index.html"
    }
  ]

  environment_variables = {
    ENV = "test"
  }

  environments = {
    main = {
      branch_name                 = "main"
      enable_auto_build           = true
      backend_enabled             = false
      enable_performance_mode     = true
      enable_pull_request_preview = false
      framework                   = "React"
      stage                       = "PRODUCTION"
    }
    dev = {
      branch_name                 = "dev"
      enable_auto_build           = true
      backend_enabled             = false
      enable_performance_mode     = false
      enable_pull_request_preview = true
      framework                   = "React"
      stage                       = "DEVELOPMENT"
    }
  }

  domains = {
    "test.net" = {
      enable_auto_sub_domain = true
      wait_for_verification  = false
      sub_domain = [
        {
          branch_name = "main"
          prefix      = ""
        },
        {
          branch_name = "dev"
          prefix      = "dev"
        }
      ]
    }
  }

  context = module.label.context
}

Important

In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic approach for updating versions to avoid unexpected changes.

Examples

Here is an example of using this module:

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Name Version
terraform >= 1.3.0
aws >= 4.0

Providers

Name Version
aws >= 4.0

Modules

Name Source Version
role cloudposse/iam-role/aws 0.18.0
this cloudposse/label/null 0.25.0

Resources

Name Type
aws_amplify_app.default resource
aws_amplify_backend_environment.default resource
aws_amplify_branch.default resource
aws_amplify_domain_association.default resource
aws_amplify_webhook.default resource
aws_iam_policy_document.default data source

Inputs

Name Description Type Default Required
access_token The personal access token for a third-party source control system for the Amplify app.
The personal access token is used to create a webhook and a read-only deploy key. The token is not stored.
Make sure that the account where the token is created has access to the repository.
string null no
additional_tag_map 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.
map(string) {} no
attributes 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.
list(string) [] no
auto_branch_creation_config The automated branch creation configuration for the Amplify app
object({
basic_auth_credentials = optional(string)
build_spec = optional(string)
enable_auto_build = optional(bool)
enable_basic_auth = optional(bool)
enable_performance_mode = optional(bool)
enable_pull_request_preview = optional(bool)
environment_variables = optional(map(string))
framework = optional(string)
pull_request_environment_name = optional(string)
stage = optional(string)
})
null no
auto_branch_creation_patterns The automated branch creation glob patterns for the Amplify app list(string) [] no
basic_auth_credentials The credentials for basic authorization for the Amplify app string null no
build_spec The build specification (build spec) for the Amplify app.
If not provided then it will use the amplify.yml at the root of your project / branch.
string null no
context 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.
any
{
"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
}
no
custom_rules The custom rules to apply to the Amplify App
list(object({
condition = optional(string)
source = string
status = optional(string)
target = string
}))
[] no
delimiter Delimiter to be used between ID elements.
Defaults to - (hyphen). Set to "" to use no delimiter at all.
string null no
description The description for the Amplify app string null no
descriptor_formats 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).
any {} no
domain_config DEPRECATED: Use the domains variable instead.
Amplify custom domain configuration.
object({
domain_name = string
enable_auto_sub_domain = optional(bool, false)
wait_for_verification = optional(bool, false)
sub_domain = list(object({
branch_name = string
prefix = string
}))
})
null no
domains Amplify custom domain configurations
map(object({
enable_auto_sub_domain = optional(bool, false)
wait_for_verification = optional(bool, false)
sub_domain = list(object({
branch_name = string
prefix = string
}))
}))
{} no
enable_auto_branch_creation Enables automated branch creation for the Amplify app bool false no
enable_basic_auth Enables basic authorization for the Amplify app.
This will apply to all branches that are part of this app.
bool false no
enable_branch_auto_build Enables auto-building of branches for the Amplify App bool true no
enable_branch_auto_deletion Automatically disconnects a branch in the Amplify Console when you delete a branch from your Git repository bool false no
enabled Set to false to prevent the module from creating any resources bool null no
environment ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' string null no
environment_variables The environment variables for the Amplify app map(string) {} no
environments The configuration of the environments for the Amplify App
map(object({
branch_name = optional(string)
backend_enabled = optional(bool, false)
environment_name = optional(string)
deployment_artifacts = optional(string)
stack_name = optional(string)
display_name = optional(string)
description = optional(string)
enable_auto_build = optional(bool)
enable_basic_auth = optional(bool)
enable_notification = optional(bool)
enable_performance_mode = optional(bool)
enable_pull_request_preview = optional(bool)
environment_variables = optional(map(string))
framework = optional(string)
pull_request_environment_name = optional(string)
stage = optional(string)
ttl = optional(number)
webhook_enabled = optional(bool, false)
}))
{} no
iam_service_role_actions List of IAM policy actions for the AWS Identity and Access Management (IAM) service role for the Amplify app.
If not provided, the default set of actions will be used for the role if the variable iam_service_role_enabled is set to true.
list(string) [] no
iam_service_role_arn The AWS Identity and Access Management (IAM) service role for the Amplify app.
If not provided, a new role will be created if the variable iam_service_role_enabled is set to true.
list(string) [] no
iam_service_role_enabled Flag to create the IAM service role for the Amplify app bool false no
id_length_limit 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.
number null no
label_key_case 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.
string null no
label_order 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.
list(string) null no
label_value_case 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.
string null no
labels_as_tags 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.
set(string)
[
"default"
]
no
name 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.
string null no
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
oauth_token The OAuth token for a third-party source control system for the Amplify app.
The OAuth token is used to create a webhook and a read-only deploy key.
The OAuth token is not stored.
string null no
platform The platform or framework for the Amplify app string "WEB" no
regex_replace_chars 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.
string null no
repository The repository for the Amplify app string null no
stage ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' string null no
tags Additional tags (e.g. {'BusinessUnit': 'XYZ'}).
Neither the tag keys nor the tag values will be modified by this module.
map(string) {} no
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
arn Amplify App ARN
backend_environments Created backend environments
branch_names The names of the created Amplify branches
default_domain Amplify App domain (non-custom)
domain_associations Created domain associations
id Amplify App Id
name Amplify App name
webhooks Created webhooks

Related Projects

Check out these related projects.

  • terraform-null-label - Terraform module designed to generate consistent names and tags for resources. Use terraform-null-label to implement a strict naming convention.

References

For additional context, refer to some of these links.

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This project is under active development, and we encourage contributions from our community.

Many thanks to our outstanding contributors:

For πŸ› bug reports & feature requests, please use the issue tracker.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

  1. Review our Code of Conduct and Contributor Guidelines.
  2. Fork the repo on GitHub
  3. Clone the project to your own machine
  4. Commit changes to your own branch
  5. Push your work back up to your fork
  6. Submit a Pull Request so that we can review your changes

NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

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License

License

Preamble to the Apache License, Version 2.0

Complete license is available in the LICENSE file.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

Trademarks

All other trademarks referenced herein are the property of their respective owners.

Copyrights

Copyright Β© 2023-2024 Cloud Posse, LLC

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