Terraform module designed to easily backup EFS filesystems to S3 using DataPipeline.
The workflow is simple:
- Periodically launch resource (EC2 instance) based on schedule
- Execute the shell command defined in the activity on the instance
- Sync data from Production EFS to S3 Bucket by using
aws-cli
- The execution log of the activity is stored in
S3
- Publish the success or failure of the activity to an
SNS
topic - Automatically rotate the backups using
S3 lifecycle rule
Tip
Cloud Posse uses atmos
to easily orchestrate multiple environments using Terraform.
Works with Github Actions, Atlantis, or Spacelift.
Watch demo of using Atmos with Terraform
![](https://github.com/cloudposse/atmos/raw/master/docs/demo.gif?raw=true&raw=true)
Example of running
atmos
to manage infrastructure from our Quick Start tutorial.
Include this module in your existing terraform code:
module "efs_backup" {
source = "git::https://github.com/cloudposse/terraform-aws-efs-backup.git?ref=master"
name = "${var.name}"
stage = "${var.stage}"
namespace = "${var.namespace}"
vpc_id = "${var.vpc_id}"
efs_mount_target_id = "${var.efs_mount_target_id}"
use_ip_address = "false"
noncurrent_version_expiration_days = "${var.noncurrent_version_expiration_days}"
ssh_key_pair = "${var.ssh_key_pair}"
datapipeline_config = "${var.datapipeline_config}"
modify_security_group = "true"
}
output "efs_backup_security_group" {
value = "${module.efs_backup.security_group_id}"
}
To enable connectivity between the DataPipeline
instances and the EFS
, use one of the following methods to configure Security Groups:
- Explicitly add the
DataPipeline
SG (the output of this modulesecurity_group_id
) to the list of theingress
rules of theEFS
SG. For example:
module "elastic_beanstalk_environment" {
source = "git::https://github.com/cloudposse/terraform-aws-elastic-beanstalk-environment.git?ref=master"
namespace = "${var.namespace}"
name = "${var.name}"
stage = "${var.stage}"
delimiter = "${var.delimiter}"
attributes = ["${compact(concat(var.attributes, list("eb-env")))}"]
tags = "${var.tags}"
# ..............................
}
module "efs" {
source = "git::https://github.com/cloudposse/terraform-aws-efs.git?ref=tmaster"
namespace = "${var.namespace}"
name = "${var.name}"
stage = "${var.stage}"
delimiter = "${var.delimiter}"
attributes = ["${compact(concat(var.attributes, list("efs")))}"]
tags = "${var.tags}"
# Allow EB/EC2 instances and DataPipeline instances to connect to the EFS
security_groups = ["${module.elastic_beanstalk_environment.security_group_id}", "${module.efs_backup.security_group_id}"]
}
module "efs_backup" {
source = "git::https://github.com/cloudposse/terraform-aws-efs-backup.git?ref=master"
name = "${var.name}"
stage = "${var.stage}"
namespace = "${var.namespace}"
delimiter = "${var.delimiter}"
attributes = ["${compact(concat(var.attributes, list("efs-backup")))}"]
tags = "${var.tags}"
# Important to set it to `false` since we added the `DataPipeline` SG (output of the `efs_backup` module) to the `security_groups` of the `efs` module
# See NOTE below for more information
modify_security_group = "false"
# ..............................
}
- Set
modify_security_group
attribute totrue
so the module will modify theEFS
SG to allow theDataPipeline
to connect to theEFS
NOTE: Do not mix these two methods together.
Terraform
does not support using a Security Group with in-line rules in conjunction with any Security Group Rule resources.
https://www.terraform.io/docs/providers/aws/r/security_group_rule.html
NOTE on Security Groups and Security Group Rules: Terraform currently provides both a standalone Security Group Rule resource (a single ingress or egress rule), and a Security Group resource with ingress and egress rules defined in-line. At this time you cannot use a Security Group with in-line rules in conjunction with any Security Group Rule resources. Doing so will cause a conflict of rule settings and will overwrite rules.
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.
Available targets:
help Help screen
help/all Display help for all targets
help/short This help short screen
lint Lint terraform code
No requirements.
Name | Version |
---|---|
aws | n/a |
Name | Source | Version |
---|---|---|
backups_label | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
datapipeline_label | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
label | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
logs_label | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
resource_role_label | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
role_label | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
sns_label | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
Name | Type |
---|---|
aws_cloudformation_stack.datapipeline | resource |
aws_cloudformation_stack.sns | resource |
aws_iam_instance_profile.resource_role | resource |
aws_iam_role.resource_role | resource |
aws_iam_role.role | resource |
aws_iam_role_policy_attachment.resource_role | resource |
aws_iam_role_policy_attachment.role | resource |
aws_s3_bucket.backups | resource |
aws_s3_bucket.logs | resource |
aws_security_group.datapipeline | resource |
aws_security_group_rule.datapipeline_efs_ingress | resource |
aws_ami.amazon_linux | data source |
aws_efs_mount_target.default | data source |
aws_iam_policy_document.resource_role | data source |
aws_iam_policy_document.role | data source |
aws_region.default | data source |
aws_subnet_ids.default | data source |
aws_vpc.default | data source |
Name | Description | Type | Default | Required |
---|---|---|---|---|
attributes | Additional attributes (e.g. efs-backup ) |
list(string) |
[] |
no |
datapipeline_config | DataPipeline configuration options | map(string) |
{ |
no |
datapipeline_security_group | Optionally specify a security group to use for the datapipeline instances | string |
"" |
no |
delimiter | Delimiter to be used between name , namespace , stage , etc. |
string |
"-" |
no |
efs_mount_target_id | EFS Mount Target ID (e.g. fsmt-279bfc62 ) |
string |
n/a | yes |
modify_security_group | Should the module modify the EFS security group |
string |
"false" |
no |
name | The Name of the application or solution (e.g. bastion or portal ) |
any |
n/a | yes |
namespace | Namespace (e.g. cp or cloudposse ) |
any |
n/a | yes |
noncurrent_version_expiration_days | S3 object versions expiration period (days) | string |
"35" |
no |
region | (Optional) AWS Region. If not specified, will be derived from 'aws_region' data source | string |
"" |
no |
ssh_key_pair | SSH key that will be deployed on DataPipeline's instance |
string |
n/a | yes |
stage | Stage (e.g. prod , dev , staging ) |
any |
n/a | yes |
subnet_id | Optionally specify the subnet to use | string |
"" |
no |
tags | Additional tags (e.g. map('BusinessUnit ,XYZ ) |
map(string) |
{} |
no |
use_ip_address | If set to true , will use IP address instead of DNS name to connect to the EFS |
string |
"false" |
no |
vpc_id | VPC ID | string |
"" |
no |
Name | Description |
---|---|
backups_bucket_name | Backups bucket name |
datapipeline_ids | Datapipeline ids |
logs_bucket_name | Logs bucket name |
security_group_id | Security group id |
sns_topic_arn | Backup notification SNS topic ARN |
Check out these related projects.
- terraform-aws-efs - Terraform Module to define an EFS Filesystem (aka NFS)
- terraform-aws-efs-cloudwatch-sns-alarms - Terraform module that configures CloudWatch SNS alerts for EFS
For additional context, refer to some of these links.
- datapipeline-efs-backup-demo - Thanks for inspiration
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