This module provisions AWS SSM Patch manager maintenance window tasks, targets, patch baselines and patch groups and a s3 bucket for storing patch task logs.
This project is part of our comprehensive "SweetOps" approach towards DevOps.
It's 100% Open Source and licensed under the APACHE2.
We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!
This module was heavily inspired by @jparnaudeau module https://github.com/jparnaudeau/terraform-aws-ssm-patch-management
Security scanning is graciously provided by Bridgecrew. Bridgecrew is the leading fully hosted, cloud-native solution providing continuous Terraform security and compliance.
| Benchmark | Description |
|---|---|
| Infrastructure Security Compliance | |
| Center for Internet Security, KUBERNETES Compliance | |
| Center for Internet Security, AWS Compliance | |
| Center for Internet Security, AZURE Compliance | |
| Payment Card Industry Data Security Standards Compliance | |
| National Institute of Standards and Technology Compliance | |
| Information Security Management System, ISO/IEC 27001 Compliance | |
| Service Organization Control 2 Compliance | |
| Center for Internet Security, GCP Compliance | |
| Health Insurance Portability and Accountability Compliance |
IMPORTANT: We do not pin modules to versions in our examples because of the difficulty of keeping the versions in the documentation in sync with the latest released versions. We highly recommend that in your code you pin the version to the exact version you are using so that your infrastructure remains stable, and update versions in a systematic way so that they do not catch you by surprise.
Also, because of a bug in the Terraform registry (hashicorp/terraform#21417), the registry shows many of our inputs as required when in fact they are optional. The table below correctly indicates which inputs are required.
For a complete example, see examples/complete.
For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.
module "ssm_patch_manager" {
source = "cloudposse/ssm-patch-manager/aws"
version = "xxxx"
name = "test"
}Here is an example of using this module:
examples/complete- complete example of using this module
Available targets:
help Help screen
help/all Display help for all targets
help/short This help short screen
lint Lint terraform code
| Name | Version |
|---|---|
| terraform | >= 1.0 |
| aws | >= 4.0 |
| null | >= 3.0 |
| random | >= 3.0 |
| template | >= 2.2 |
| Name | Version |
|---|---|
| aws | >= 4.0 |
| Name | Source | Version |
|---|---|---|
| install_window_label | cloudposse/label/null | 0.25.0 |
| scan_window_label | cloudposse/label/null | 0.25.0 |
| ssm_patch_log_s3_bucket | cloudposse/s3-bucket/aws | 2.0.0 |
| ssm_patch_log_s3_bucket_label | cloudposse/label/null | 0.25.0 |
| this | cloudposse/label/null | 0.25.0 |
| Name | Type |
|---|---|
| aws_ssm_maintenance_window.install_window | resource |
| aws_ssm_maintenance_window.scan_window | resource |
| aws_ssm_maintenance_window_target.target_install | resource |
| aws_ssm_maintenance_window_target.target_scan | resource |
| aws_ssm_maintenance_window_task.task_install_patches | resource |
| aws_ssm_maintenance_window_task.task_scan_patches | resource |
| aws_ssm_patch_baseline.baseline | resource |
| aws_ssm_patch_group.install_patchgroup | resource |
| aws_ssm_patch_group.scan_patchgroup | resource |
| aws_caller_identity.current | data source |
| aws_iam_policy_document.bucket_policy | data source |
| aws_partition.current | data source |
| 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 |
| approved_patches | A list of explicitly approved patches for the baseline | list(string) |
[] |
no |
| approved_patches_compliance_level | Defines the compliance level for approved patches. This means that if an approved patch is reported as missing, this is the severity of the compliance violation. Valid compliance levels include the following: CRITICAL, HIGH, MEDIUM, LOW, INFORMATIONAL, UNSPECIFIED. The default value is UNSPECIFIED. | string |
"HIGH" |
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 delimiterand treated as a single ID element. |
list(string) |
[] |
no |
| bucket_id | The bucket ID to use for the patch log. If no bucket ID is provided, the module will create a new one. | string |
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 |
{ |
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 beidentical 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 |
| install_maintenance_window_cutoff | The number of hours before the end of the Maintenance Window that Systems Manager stops scheduling new tasks for execution | number |
1 |
no |
| install_maintenance_window_duration | The duration of the maintenence windows (hours) | number |
3 |
no |
| install_maintenance_window_schedule | The schedule of the Maintenance Window in the form of a cron or rate expression | string |
"cron(0 0 21 ? * WED *)" |
no |
| install_maintenance_windows_targets | The targets to register with the maintenance window. In other words, the instances to run commands on when the maintenance window runs. You can specify targets using instance IDs, resource group names, or tags that have been applied to instances. For more information about these examples formats see (https://docs.aws.amazon.com/systems-manager/latest/userguide/mw-cli-tutorial-targets-examples.html) | list(object({ |
[] |
no |
| install_patch_groups | The targets to register with the maintenance window. In other words, the instances to run commands on when the maintenance window runs. You can specify targets using instance IDs, resource group names, or tags that have been applied to instances. For more information about these examples formats see (https://docs.aws.amazon.com/systems-manager/latest/userguide/mw-cli-tutorial-targets-examples.html) | list(string) |
[ |
no |
| install_sns_notification_enabled | Enable/disable the SNS notification for install patches | bool |
false |
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 bechanged in later chained modules. Attempts to change it will be silently ignored. |
set(string) |
[ |
no |
| max_concurrency | The maximum number of targets this task can be run for in parallel | number |
20 |
no |
| max_errors | The maximum number of errors allowed before this task stops being scheduled | number |
50 |
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 |
| notification_arn | An Amazon Resource Name (ARN) for a Simple Notification Service (SNS) topic. Run Command pushes notifications about command status changes to this topic. | string |
"" |
no |
| notification_events | The different events for which you can receive notifications. Valid values: All, InProgress, Success, TimedOut, Cancelled, and Failed | list(string) |
[ |
no |
| notification_type | When specified with Command, receive notification when the status of a command changes. When specified with Invocation, for commands sent to multiple instances, receive notification on a per-instance basis when the status of a command changes. Valid values: Command and Invocation | string |
"Command" |
no |
| operating_system | Defines the operating system the patch baseline applies to. Supported operating systems include WINDOWS, AMAZON_LINUX, AMAZON_LINUX_2, SUSE, UBUNTU, CENTOS, and REDHAT_ENTERPRISE_LINUX. The Default value is WINDOWS. | string |
"AMAZON_LINUX_2" |
no |
| patch_baseline_approval_rules | A set of rules used to include patches in the baseline. Up to 10 approval rules can be specified. Each approval_rule block requires the fields documented below. |
list(object({ |
[ |
no |
| reboot_option | When you choose the RebootIfNeeded option, the instance is rebooted if Patch Manager installed new patches, or if it detected any patches with a status of INSTALLED_PENDING_REBOOT during the Install operation. Possible values : RebootIfNeeded, NoReboot | string |
"RebootIfNeeded" |
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 |
| rejected_patches | A list of rejected patches | list(string) |
[] |
no |
| s3_bucket_prefix_install_logs | The Amazon S3 bucket subfolder | string |
"install" |
no |
| scan_maintenance_window_cutoff | The number of hours before the end of the Maintenance Window that Systems Manager stops scheduling new tasks for execution | number |
1 |
no |
| scan_maintenance_window_duration | The duration of the maintenence windows (hours) | number |
3 |
no |
| scan_maintenance_window_schedule | The schedule of the Maintenance Window in the form of a cron or rate expression. | string |
"cron(0 0 18 ? * WED *)" |
no |
| scan_maintenance_windows_targets | The map of tags for targetting which EC2 instances will be scaned | list(object({ |
[] |
no |
| scan_patch_groups | The targets to register with the maintenance window. In other words, the instances to run commands on when the maintenance window runs. You can specify targets using instance IDs, resource group names, or tags that have been applied to instances. For more information about these examples formats see (https://docs.aws.amazon.com/systems-manager/latest/userguide/mw-cli-tutorial-targets-examples.html) | list(string) |
[ |
no |
| scan_sns_notification_enabled | Enable/Disable the SNS notification for scans | bool |
false |
no |
| service_role_arn | The role that should be assumed when executing the task. If a role is not provided, Systems Manager uses your account's service-linked role. If no service-linked role for Systems Manager exists in your account, it is created for you | string |
null |
no |
| sns_notification_role_arn | An Amazon Resource Name (ARN) for a Simple Notification Service (SNS) topic. Run Command pushes notifications about command status changes to this topic. | string |
"" |
no |
| ssm_bucket_policy | Custom bucket policy for the SSM log bucket | string |
null |
no |
| ssm_bucket_versioning_enable | To enable or disable S3 bucket versioning for the log bucket. | string |
true |
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_install_priority | The priority of the task in the Maintenance Window, the lower the number the higher the priority. Tasks in a Maintenance Window are scheduled in priority order with tasks that have the same priority scheduled in parallel. | number |
1 |
no |
| task_scan_priority | The priority of the task in the Maintenance Window, the lower the number the higher the priority. Tasks in a Maintenance Window are scheduled in priority order with tasks that have the same priority scheduled in parallel. Default 1 | number |
1 |
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 |
| Name | Description |
|---|---|
| install_maintenance_window_id | SSM Patch Manager install maintenance window ID |
| install_maintenance_window_target_id | SSM Patch Manager install maintenance window target ID |
| install_maintenance_window_task_id | SSM Patch Manager install maintenance windows task ID |
| install_patch_group_id | SSM Patch Manager install patch group ID |
| patch_baseline_arn | SSM Patch Manager patch baseline ARN |
| scan_maintenance_window_target_id | SSM Patch Manager scan maintenance window target ID |
| scan_maintenance_window_task_id | SSM Patch Manager scan maintenance windows task ID |
| scan_patch_group_id | SSM Patch Manager scan patch group ID |
| ssm_patch_log_s3_bucket_arn | SSM Patch Manager s3 log bucket ARN |
| ssm_patch_log_s3_bucket_id | SSM Patch Manager s3 log bucket ID |
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Check out these related projects.
- terraform-null-label - Terraform module designed to generate consistent names and tags for resources. Use terraform-null-label to implement a strict naming convention.
For additional context, refer to some of these links.
- Terraform Standard Module Structure - HashiCorp's standard module structure is a file and directory layout we recommend for reusable modules distributed in separate repositories.
- Terraform Module Requirements - HashiCorp's guidance on all the requirements for publishing a module. Meeting the requirements for publishing a module is extremely easy.
- Terraform
random_integerResource - The resource random_integer generates random values from a given range, described by the min and max attributes of a given resource. - Terraform Version Pinning - The required_version setting can be used to constrain which versions of the Terraform CLI can be used with your configuration
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