Module: backup

Terraform module to provision AWS Backup, a fully managed backup service that makes it easy to centralize and automate the back up of data across AWS services such as Amazon EBS volumes, Amazon EC2 instances, Amazon RDS databases, Amazon DynamoDB tables, Amazon EFS file systems, and AWS Storage Gateway volumes.

[!NOTE]
The syntax of declaring a backup schedule has changed as of release 0.14.0, follow the instructions in the 0.13.x to 0.14.x+ migration guide.

[!WARNING] The deprecated variables have been fully deprecated as of 1.x.x. Please use the new variables as described in the 0.13.x to 0.14.x+ migration guide.

Usage

For a complete example on how to backup an Elastic File System (EFS), see examples/complete.

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

provider "aws" {
  region = var.region
}

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

  namespace  = var.namespace
  stage      = var.stage
  name       = var.name
  attributes = var.attributes
  tags       = var.tags
  delimiter  = var.delimiter

  ipv4_primary_cidr_block = "172.16.0.0/16"
}

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

  namespace  = var.namespace
  stage      = var.stage
  name       = var.name
  attributes = var.attributes
  tags       = var.tags
  delimiter  = var.delimiter

  availability_zones   = var.availability_zones
  vpc_id               = module.vpc.vpc_id
  igw_id               = [module.vpc.igw_id]
  ipv4_cidr_block      = module.vpc.vpc_cidr_block
  nat_gateway_enabled  = false
  nat_instance_enabled = false
}

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

  namespace  = var.namespace
  stage      = var.stage
  name       = var.name
  attributes = var.attributes
  tags       = var.tags
  delimiter  = var.delimiter

  region             = var.region
  availability_zones = var.availability_zones
  vpc_id             = module.vpc.vpc_id
  subnets            = module.subnets.private_subnet_ids

  allowed_security_group_ids = [module.vpc.vpc_default_security_group_id]
}

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

  namespace  = var.namespace
  stage      = var.stage
  name       = var.name
  attributes = var.attributes
  tags       = var.tags
  delimiter  = var.delimiter

  plan_name_suffix = var.plan_name_suffix
  vault_enabled    = var.vault_enabled
  iam_role_enabled = var.iam_role_enabled
  plan_enabled     = var.plan_enabled

  selection_tags   = var.selection_tags
  backup_resources = [module.efs.arn]
  not_resources    = var.not_resources

  rules = var.rules

  kms_key_arn = var.kms_key_arn

  advanced_backup_setting         = var.advanced_backup_setting
  backup_vault_lock_configuration = var.backup_vault_lock_configuration

}

In the above example var.rules could be defined as follows:

rules = [
  {
    name              = "${module.this.name}-daily"
    schedule          = var.schedule
    start_window      = var.start_window
    completion_window = var.completion_window
    lifecycle         = {
      cold_storage_after = var.cold_storage_after
      delete_after       = var.delete_after
    }
  }
]

or as yaml

rules:
  - name: terraform-aws-backup
    schedule: "cron(0 5 ? * * *)"
    start_window: 320 # 60 * 8             # minutes
    completion_window: 10080 # 60 * 24 * 7 # minutes
    delete_after: 35 # 7 * 5     

Requirements

Name	Version
terraform	>= 1.3.0
aws	>= 3.0

Providers

Name	Version
aws	>= 3.0

Modules

Name	Source	Version
label_backup_role	cloudposse/label/null	0.25.0
this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_backup_plan.default	resource
aws_backup_selection.default	resource
aws_backup_vault.default	resource
aws_backup_vault_lock_configuration.default	resource
aws_iam_role.default	resource
aws_iam_role_policy_attachment.default	resource
aws_backup_vault.existing	data source
aws_iam_policy_document.assume_role	data source
aws_iam_role.existing	data source
aws_partition.current	data source

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
advanced_backup_setting	n/a	object({ backup_options = string resource_type = string })	null	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
backup_resources	An array of strings that either contain Amazon Resource Names (ARNs) or match patterns of resources to assign to a backup plan	list(string)	[]	no
backup_vault_lock_configuration	The backup vault lock configuration, each vault can have one vault lock in place. This will enable Backup Vault Lock on an AWS Backup vault it prevents the deletion of backup data for the specified retention period. During this time, the backup data remains immutable and cannot be deleted or modified." changeable_for_days - The number of days before the lock date. If omitted creates a vault lock in governance mode, otherwise it will create a vault lock in compliance mode.	object({ changeable_for_days = optional(number) max_retention_days = optional(number) min_retention_days = optional(number) })	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
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
iam_role_enabled	Should we create a new Iam Role and Policy Attachment	bool	true	no
iam_role_name	Override target IAM Role Name	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
kms_key_arn	The server-side encryption key that is used to protect your backups	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
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
not_resources	An array of strings that either contain Amazon Resource Names (ARNs) or match patterns of resources to exclude from a backup plan	list(string)	[]	no
permissions_boundary	The permissions boundary to set on the role	string	null	no
plan_enabled	Should we create a new Plan	bool	true	no
plan_name_suffix	The string appended to the plan name	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
rules	A list of rule objects used to define schedules in a backup plan. Follows the following structure: yaml rules: - name: "plan-daily" schedule: "cron(0 5 ? * * )" start_window: 320 # 60 8 # minutes completion_window: 10080 # 60 24 7 # minutes delete_after: 35 # 7 5 # days - name: "plan-weekly" schedule: "cron(0 5 ? SAT )" start_window: 320 # 60 8 # minutes completion_window: 10080 # 60 24 7 # minutes delete_after: 90 # 30 * 3	list(object({ name = string schedule = optional(string) enable_continuous_backup = optional(bool) start_window = optional(number) completion_window = optional(number) lifecycle = optional(object({ cold_storage_after = optional(number) delete_after = optional(number) opt_in_to_archive_for_supported_resources = optional(bool) })) copy_action = optional(object({ destination_vault_arn = optional(string) lifecycle = optional(object({ cold_storage_after = optional(number) delete_after = optional(number) opt_in_to_archive_for_supported_resources = optional(bool) })) })) }))	[]	no
selection_tags	An array of tag condition objects used to filter resources based on tags for assigning to a backup plan	list(object({ type = string key = string value = string }))	[]	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
vault_enabled	Should we create a new Vault	bool	true	no
vault_name	Override target Vault Name	string	null	no

Outputs

Name	Description
backup_plan_arn	Backup Plan ARN
backup_plan_version	Unique, randomly generated, Unicode, UTF-8 encoded string that serves as the version ID of the backup plan
backup_selection_id	Backup Selection ID
backup_vault_arn	Backup Vault ARN
backup_vault_id	Backup Vault ID
role_arn	The Amazon Resource Name (ARN) specifying the role
role_name	The name of the IAM role created