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@@ -3,5 +3,6 @@ isort==5.12.0 | |
| mock==5.1.0 | ||
| pylint==2.17.4 | ||
| pytest~=7.4.0 | ||
| pytest-cov==3.0.0 | ||
| tox==3.28.0 | ||
| yamllint==1.32.0 | ||
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103 changes: 103 additions & 0 deletions
103
src/lambda_codebase/account_processing/configure_account_regions.py
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| # Copyright 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| # SPDX-License-Identifier: MIT-0 | ||
|
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| """ | ||
| Takes regions that the account is not-opted into and opts into them. | ||
| """ | ||
| from ast import literal_eval | ||
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| import boto3 | ||
| from aws_xray_sdk.core import patch_all | ||
| from logger import configure_logger | ||
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| patch_all() | ||
| LOGGER = configure_logger(__name__) | ||
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| def get_regions_from_ssm(ssm_client): | ||
| regions = ssm_client.get_parameter(Name="target_regions")["Parameter"].get("Value") | ||
| regions = literal_eval(regions) | ||
| return regions | ||
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| def get_region_status(account_client, **list_region_args): | ||
| region_status_response = account_client.list_regions(**list_region_args) | ||
| region_status = { | ||
| region.get("RegionName"): region.get("RegionOptStatus") | ||
| for region in region_status_response.get("Regions") | ||
| } | ||
| # Currently no built in paginator for list_regions... | ||
| # So we have to do this manually. | ||
| next_token = region_status_response.get("NextToken") | ||
| if next_token: | ||
| while next_token: | ||
| list_region_args["NextToken"] = next_token | ||
| region_status_response = account_client.list_regions(**list_region_args) | ||
| next_token = region_status_response.get("NextToken") | ||
| region_status = region_status | { | ||
| region.get("RegionName"): region.get("RegionOptStatus") | ||
| for region in region_status_response.get("Regions") | ||
| } | ||
| return region_status | ||
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| def enable_regions_for_account( | ||
| account_client, account_id, desired_regions, org_root_account_id | ||
| ): | ||
| list_region_args = {} | ||
| enable_region_args = {} | ||
| target_is_different_account = org_root_account_id != account_id | ||
| if target_is_different_account: | ||
| list_region_args["AccountId"] = account_id | ||
| enable_region_args["AccountId"] = account_id | ||
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| region_status = get_region_status(account_client, **list_region_args) | ||
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| regions_enabled = {} | ||
| for region in desired_regions: | ||
| regions_enabled[region] = False | ||
| desired_region_status = region_status.get(region.lower()) | ||
| if not desired_region_status: | ||
| LOGGER.warning("Unable to obtain status of %s, not enabling") | ||
| if desired_region_status == "DISABLED": | ||
| LOGGER.info("Enabling Region %s because it is currently Disabled", region) | ||
| enable_region_args["RegionName"] = region.lower() | ||
| account_client.enable_region(**enable_region_args) | ||
| else: | ||
| LOGGER.info( | ||
| "Not enabling Region: %s because it is: %s", | ||
| region, | ||
| desired_region_status, | ||
| ) | ||
| if desired_region_status in ["ENABLED_BY_DEFAULT", "ENABLED"]: | ||
| regions_enabled[region] = True | ||
| LOGGER.info(regions_enabled) | ||
| return all(regions_enabled.values()) | ||
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| def lambda_handler(event, _): | ||
| desired_regions = [] | ||
| if event.get("regions"): | ||
| LOGGER.info( | ||
| "Account Level Regions is not currently supported." | ||
| "Ignoring these values for now and using SSM only" | ||
| ) | ||
| desired_regions.extend(get_regions_from_ssm(boto3.client("ssm"))) | ||
| org_root_account_id = boto3.client("sts").get_caller_identity().get("Account") | ||
| target_account_id = event.get("account_id") | ||
| LOGGER.info( | ||
| "Target Account Id: %s - This is running in %s. These are the same: %s", | ||
| target_account_id, | ||
| org_root_account_id, | ||
| target_account_id == org_root_account_id, | ||
| ) | ||
| all_regions_enabled = enable_regions_for_account( | ||
| boto3.client("account"), | ||
| target_account_id, | ||
| desired_regions, | ||
| org_root_account_id, | ||
| ) | ||
| event["all_regions_enabled"] = all_regions_enabled | ||
|
|
||
| return event |
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