This component is responsible for provisioning Aurora MySQL resources: additional databases, users, permissions, grants, etc.

NOTE: Creating additional users (including read-only users) and databases requires Spacelift, since that action to be done via the mysql provider, and by default only the automation account is whitelisted by the Aurora cluster.

Usage

Stack Level: Regional

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

stacks/catalog/aurora-mysql/resources/defaults.yaml file (base component for Aurora MySQL Resources with default settings):

components:
  terraform:
    aurora-mysql-resources/defaults:
      metadata:
        type: abstract
      vars:
        enabled: true

Example (not actual):

stacks/uw2-dev.yaml file (override the default settings for the cluster resources in the dev account, create an additional database and user):

import:
  - catalog/aurora-mysql/resources/defaults

components:
  terraform:
    aurora-mysql-resources/dev:
      metadata:
        component: aurora-mysql-resources
        inherits:
          - aurora-mysql-resources/defaults
      vars:
        aurora_mysql_component_name: aurora-mysql/dev
        additional_users:
          example:
            db_user: example
            db_password: ""
            grants:
              - grant: ["ALL"]
                db: example
                object_type: database
                schema: null

Requirements

Name	Version
terraform	>= 1.0.0
aws	>= 4.0
mysql	>= 3.0.22

Providers

Name	Version
aws	>= 4.0
mysql	>= 3.0.22

Modules

Name	Source	Version
additional_grants	./modules/mysql-user	n/a
additional_users	./modules/mysql-user	n/a
aurora_mysql	cloudposse/stack-config/yaml//modules/remote-state	1.5.0
iam_roles	../account-map/modules/iam-roles	n/a
this	cloudposse/label/null	0.25.0

Resources

Name	Type
mysql_database.additional	resource
aws_ssm_parameter.admin_password	data source
aws_ssm_parameter.password	data source

Inputs

Name	Description	Type	Default	Required
additional_databases	Additional databases to be created with the cluster	set(string)	[]	no
additional_grants	Create additional database user with specified grants. If var.ssm_password_source is set, passwords will be retrieved from SSM parameter store, otherwise, passwords will be generated and stored in SSM parameter store under the service's key.	map(list(object({ grant : list(string) db : string })))	{}	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
additional_users	Create additional database user for a service, specifying username, grants, and optional password. If no password is specified, one will be generated. Username and password will be stored in SSM parameter store under the service's key.	map(object({ db_user : string db_password : string grants : list(object({ grant : list(string) db : 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
aurora_mysql_component_name	Aurora MySQL component name to read the remote state from	string	"aurora-mysql"	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
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
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
mysql_admin_password	MySQL password for the admin user. If not provided, the password will be pulled from SSM	string	""	no
mysql_cluster_enabled	Set to false to prevent the module from creating any resources	string	true	no
mysql_db_name	Database name (default is not to create a database	string	""	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
read_passwords_from_ssm	When true, fetch user passwords from SSM	bool	true	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
ssm_password_source	If var.read_passwords_from_ssm is true, DB user passwords will be retrieved from SSM using var.ssm_password_source and the database username. If this value is not set, a default path will be created using the SSM path prefix and ID of the associated Aurora Cluster.	string	""	no
ssm_path_prefix	SSM path prefix	string	"rds"	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
additional_grants	Additional DB users created
additional_users	Additional DB users created

References

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

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