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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 EBS volumes, RDS databases, DynamoDB tables, EFS file systems, and AWS Storage Gateway volumes.

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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.

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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: "plan-daily"
    schedule: "cron(0 5 ? * * *)"
    start_window: 320 # 60 * 8             # minutes
    completion_window: 10080 # 60 * 24 * 7 # minutes
    delete_after: 35 # 7 * 5     

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.

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 >= 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 An object that specifies backup options for each resource type
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

Related Projects

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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.

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