Component: mwaa

This component provisions Amazon managed workflows for Apache Airflow.

The s3 bucket dag_bucket stores DAGs to be executed by MWAA.

Access Modes

Public

Allows the Airflow UI to be access over the public internet to users granted access by an IAM policy.

Private

Limits access to users within the VPC to users granted access by an IAM policy.

• MWAA creates a VPC interface endpoint for the Airflow webserver and an interface endpoint for the pgsql metadatabase.
  • the endpoints are created in the AZs mapped to your private subnets
• MWAA binds an IP address from your private subnet to the interface endpoint

Managing access to VPC endpoings on MWAA

MWAA creates a VPC endpoint in each of the private subnets.

Usage

Stack Level: Regional

Here's an example snippet for how to use this component.

components:
  terraform:
    mwaa:
      vars:
        enabled: true
        name: app
        dag_processing_logs_enabled: true
        dag_processing_logs_level: INFO
        environment_class: mw1.small
        airflow_version: 2.0.2

Requirements

Name	Version
terraform	>= 1.0.0
aws	>= 4.0

Providers

Name	Version
aws	>= 4.0

Modules

Name	Source	Version
iam_policy	cloudposse/iam-policy/aws	0.4.0
iam_roles	../account-map/modules/iam-roles	n/a
mwaa_environment	cloudposse/mwaa/aws	0.4.8
this	cloudposse/label/null	0.25.0
vpc	cloudposse/stack-config/yaml//modules/remote-state	1.5.0
vpc_ingress	cloudposse/stack-config/yaml//modules/remote-state	1.5.0

Resources

Name	Type
aws_iam_policy.mwaa_web_server_access	resource
aws_iam_role_policy_attachment.mwaa_web_server_access	resource
aws_iam_role_policy_attachment.secrets_manager_read_write	resource

Inputs

Name	Description	Type	Default	Required
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	map(string)	{}	no
airflow_version	Airflow version of the MWAA environment, will be set by default to the latest version that MWAA supports.	string	""	no
allow_ingress_from_vpc_stages	List of stages to pull VPC ingress cidr and add to security group	list(string)	[ "auto", "corp" ]	no
allowed_cidr_blocks	List of CIDR blocks to be allowed to connect to the MWAA cluster	list(string)	[]	no
allowed_security_groups	A list of IDs of Security Groups to allow access to the security group created by this module.	list(string)	[]	no
allowed_web_access_role_arns	List of role ARNs to allow airflow web access	list(string)	[]	no
allowed_web_access_role_names	List of role names to allow airflow web 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
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	Path to dags in s3	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
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
source_bucket_arn	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
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
webserver_access_mode	Specifies whether the webserver is accessible over the internet, PUBLIC_ONLY or PRIVATE_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	ARN of 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 MWAA Environment
s3_bucket_arn	ID of S3 bucket.
security_group_id	ID of the MWAA Security Group(s)
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

References

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