cloudposse / terraform-aws-mwaa

Terraform module to provision Amazon Managed Workflows for Apache Airflow (MWAA)

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Cloud Posse

Terraform module to provision Amazon Managed Workflows for Apache Airflow


This project is part of our comprehensive "SweetOps" approach towards DevOps.

Terraform Open Source Modules

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Security & Compliance

Security scanning is graciously provided by Bridgecrew. Bridgecrew is the leading fully hosted, cloud-native solution providing continuous Terraform security and compliance.

Benchmark Description
Infrastructure Security Infrastructure Security Compliance
CIS KUBERNETES Center for Internet Security, KUBERNETES Compliance
CIS AWS Center for Internet Security, AWS Compliance
CIS AZURE Center for Internet Security, AZURE Compliance
PCI-DSS Payment Card Industry Data Security Standards Compliance
NIST-800-53 National Institute of Standards and Technology Compliance
ISO27001 Information Security Management System, ISO/IEC 27001 Compliance
SOC2 Service Organization Control 2 Compliance
CIS GCP Center for Internet Security, GCP Compliance
HIPAA Health Insurance Portability and Accountability Compliance

Usage

IMPORTANT: We do not pin modules to versions in our examples because of the difficulty of keeping the versions in the documentation in sync with the latest released versions. We highly recommend that in your code you pin the version to the exact version you are using so that your infrastructure remains stable, and update versions in a systematic way so that they do not catch you by surprise.

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.

module "mwaa" {
  source = "cloudposse/mwaa/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version = "x.x.x"
  vpc_id                      = var.vpc_id
  subnet_ids                  = var.subnet_ids
  airflow_version             = "2.0.2"
  dag_s3_path                 = "dags"
  environment_class           = "mw1.small"
  min_workers                 = 1
  max_workers                 = 10
  webserver_access_mode       = "PRIVATE_ONLY"
  dag_processing_logs_enabled = true
  dag_processing_logs_level   = "INFO"
  name                        = "app"
  stage                       = "test"
  namespace                   = "eg"
  enabled                     = true
}

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 >= 1.0
aws >= 4.2.0

Providers

Name Version
aws >= 4.2.0

Modules

Name Source Version
iam_label cloudposse/label/null 0.25.0
mwaa_iam_role cloudposse/iam-role/aws 0.16.2
mwaa_s3_bucket cloudposse/s3-bucket/aws 4.0.0
mwaa_security_group cloudposse/security-group/aws 1.0.1
s3_label cloudposse/label/null 0.25.0
sg_label cloudposse/label/null 0.25.0
this cloudposse/label/null 0.25.0

Resources

Name Type
aws_mwaa_environment.default resource
aws_caller_identity.current data source
aws_iam_policy_document.this data source
aws_partition.current data source

Inputs

Name Description Type Default Required
additional_security_group_rules A list of Security Group rule objects to add to the created security group, in addition to the ones
this module normally creates. (To suppress the module's rules, set create_security_group to false
and supply your own security group(s) via associated_security_group_ids.)
The keys and values of the objects are fully compatible with the aws_security_group_rule resource, except
for security_group_id which will be ignored, and the optional "key" which, if provided, must be unique and known at "plan" time.
For more info see https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/security_group_rule
and https://github.com/cloudposse/terraform-aws-security-group.
list(any) [] 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
airflow_configuration_options The Airflow override options any null no
airflow_version Airflow version of the MWAA environment, will be set by default to the latest version that MWAA supports. string "" no
allow_all_egress If true, the created security group will allow egress on all ports and protocols to all IP addresses.
If this is false and no egress rules are otherwise specified, then no egress will be allowed.
bool true no
allowed_cidr_blocks A list of IPv4 CIDRs to allow access to the security group created by this module.
The length of this list must be known at "plan" time.
list(string) [] no
allowed_security_group_ids A list of IDs of Security Groups to allow access to the security group created by this module.
The length of this list must be known at "plan" time.
list(string) [] no
associated_security_group_ids A list of IDs of Security Groups to associate the created resource with, in addition to the created security group.
These security groups will not be modified and, if create_security_group is false, must have rules providing the desired access.
list(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
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
create_iam_role Enabling or disabling the creatation of a default IAM Role for AWS MWAA bool true no
create_s3_bucket Enabling or disabling the creatation of an S3 bucket for AWS MWAA bool true no
create_security_group Set true to create and configure a new security group. If false, associated_security_group_ids must be provided. bool true no
dag_processing_logs_enabled Enabling or disabling the collection of logs for processing DAGs bool false no
dag_processing_logs_level DAG processing logging level. Valid values: CRITICAL, ERROR, WARNING, INFO, DEBUG string "INFO" no
dag_s3_path The relative path to the DAG folder on your Amazon S3 storage bucket. string "dags" no
delimiter Delimiter to be used between ID elements.
Defaults to - (hyphen). Set to "" to use no delimiter at all.
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
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_class Environment class for the cluster. Possible options are mw1.small, mw1.medium, mw1.large. string "mw1.small" no
execution_role_arn If create_iam_role is false then set this to the target MWAA execution role string "" 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
kms_key The Amazon Resource Name (ARN) of your KMS key that you want to use for encryption. Will be set to the ARN of the managed KMS key aws/airflow by default. string 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
max_workers The maximum number of workers that can be automatically scaled up. Value need to be between 1 and 25. number 10 no
min_workers The minimum number of workers that you want to run in your environment. number 1 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
plugins_s3_object_version The plugins.zip file version you want to use. string null no
plugins_s3_path The relative path to the plugins.zip file on your Amazon S3 storage bucket. For example, plugins.zip. If a relative path is provided in the request, then plugins_s3_object_version is required string null 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
region AWS region string n/a yes
requirements_s3_object_version The requirements.txt file version you string null no
requirements_s3_path The relative path to the requirements.txt file on your Amazon S3 storage bucket. For example, requirements.txt. If a relative path is provided in the request, then requirements_s3_object_version is required string null no
scheduler_logs_enabled Enabling or disabling the collection of logs for the schedulers bool false no
scheduler_logs_level Schedulers logging level. Valid values: CRITICAL, ERROR, WARNING, INFO, DEBUG string "INFO" no
security_group_create_before_destroy Set true to enable Terraform create_before_destroy behavior on the created security group.
We only recommend setting this false if you are upgrading this module and need to keep
the existing security group from being replaced.
Note that changing this value will always cause the security group to be replaced.
bool true no
security_group_create_timeout How long to wait for the security group to be created. string "10m" no
security_group_delete_timeout How long to retry on DependencyViolation errors during security group deletion from
lingering ENIs left by certain AWS services such as Elastic Load Balancing.
string "15m" no
security_group_description Security Group for AWS MWAA string "Managed by Terraform" no
security_group_name The name to assign to the created security group. Must be unique within the VPC.
If not provided, will be derived from the null-label.context passed in.
If create_before_destroy is true, will be used as a name prefix.
list(string) [] no
source_bucket_arn If create_s3_bucket is false then set this to the Amazon Resource Name (ARN) of your Amazon S3 storage bucket. string null no
stage ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' string null no
startup_script_s3_object_version The version of the startup shell script you want to use. You must specify the version ID that Amazon S3 assigns to the file every time you update the script. string null no
startup_script_s3_path The relative path to the script hosted in your bucket. The script runs as your environment starts before starting the Apache Airflow process. string null no
subnet_ids The private subnet IDs in which the environment should be created. MWAA requires two subnets list(string) n/a yes
tags Additional tags (e.g. {'BusinessUnit': 'XYZ'}).
Neither the tag keys nor the tag values will be modified by this module.
map(string) {} no
task_logs_enabled Enabling or disabling the collection of logs for DAG tasks bool false no
task_logs_level DAG tasks logging level. Valid values: CRITICAL, ERROR, WARNING, INFO, DEBUG string "INFO" 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
vpc_id The ID of the VPC where the Security Group will be created. string n/a yes
webserver_access_mode Specifies whether the webserver should be accessible over the internet or via your specified VPC. Possible options: PRIVATE_ONLY (default) and PUBLIC_ONLY. string "PRIVATE_ONLY" no
webserver_logs_enabled Enabling or disabling the collection of logs for the webservers bool false no
webserver_logs_level Webserver logging level. Valid values: CRITICAL, ERROR, WARNING, INFO, DEBUG string "INFO" no
weekly_maintenance_window_start Specifies the start date for the weekly maintenance window. string null no
worker_logs_enabled Enabling or disabling the collection of logs for the workers bool false no
worker_logs_level Workers logging level. Valid values: CRITICAL, ERROR, WARNING, INFO, DEBUG string "INFO" no

Outputs

Name Description
arn The ARN of the Amazon MWAA Environment
created_at The Created At date of the Amazon MWAA Environment
execution_role_arn IAM Role ARN for Amazon MWAA Execution Role
logging_configuration The Logging Configuration of the Amazon MWAA Environment
s3_bucket_arn ARN of the S3 bucket
security_group_arn The ARN of the created security group
security_group_id The ID of the created security group
security_group_name The name of the created security group
service_role_arn The Service Role ARN of the Amazon MWAA Environment
status The status of the Amazon MWAA Environment
tags_all A map of tags assigned to the resource, including those inherited from the provider for the Amazon MWAA Environment
webserver_url The webserver URL of the Amazon MWAA Environment

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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.

  • Terraform Standard Module Structure - HashiCorp's standard module structure is a file and directory layout we recommend for reusable modules distributed in separate repositories.
  • Terraform Module Requirements - HashiCorp's guidance on all the requirements for publishing a module. Meeting the requirements for publishing a module is extremely easy.
  • Terraform random_integer Resource - The resource random_integer generates random values from a given range, described by the min and max attributes of a given resource.
  • Terraform Version Pinning - The required_version setting can be used to constrain which versions of the Terraform CLI can be used with your configuration

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Copyrights

Copyright © 2022-2023 Cloud Posse, LLC

License

License

See LICENSE for full details.

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

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About

Terraform module to provision Amazon Managed Workflows for Apache Airflow (MWAA)

https://cloudposse.com/accelerate

License:Apache License 2.0


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