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Add CloudFormation Stackset required for enabling multi-account organ…
…ization CloudTrail (#26) ### Added - Auto-deployed CloudFormation StackSet resource when enabling organization trail
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| data "aws_region" "current" {} | ||
| data "aws_caller_identity" "current" {} | ||
| data "aws_organizations_organization" "current" {} | ||
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| locals { | ||
| default_tags = { | ||
| "vendor" = "expel" | ||
| } | ||
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|
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| tags = merge( | ||
| var.tags, | ||
| local.default_tags, | ||
| ) | ||
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| region = data.aws_region.current.name | ||
| customer_aws_account_id = data.aws_caller_identity.current.account_id | ||
| customer_aws_organization_id = try(data.aws_organizations_organization.current.roots[0].id, "") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| resource "aws_cloudformation_stack_set" "permeate_account_policy" { | ||
| count = var.enable_organization_trail ? 1 : 0 | ||
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| name = "PermeateAccountPolicy" | ||
| description = "Creates policies in all accounts of the organization for Expel to get basic read permissions of resources in order to investigate alerts" | ||
| permission_model = "SERVICE_MANAGED" | ||
| capabilities = ["CAPABILITY_NAMED_IAM"] | ||
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| auto_deployment { | ||
| enabled = true | ||
| } | ||
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| parameters = { | ||
| ExpelCustomerOrganizationGUID = var.expel_customer_organization_guid, | ||
| ExpelAssumeRoleARN = aws_iam_role.expel_assume_role.arn | ||
| } | ||
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| template_body = local.stackset_template | ||
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| tags = local.tags | ||
| } | ||
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| resource "aws_cloudformation_stack_set_instance" "permeate_account_policy" { | ||
| count = var.enable_organization_trail ? 1 : 0 | ||
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| deployment_targets { | ||
| organizational_unit_ids = [local.customer_aws_organization_id] | ||
| } | ||
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| region = local.region | ||
| stack_set_name = aws_cloudformation_stack_set.permeate_account_policy[0].name | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| // Note: ExpelAccessPolicy is a duplicate policy statement with CloudTrail Manager IAM Policy | ||
| locals { | ||
| stackset_template = <<TEMPLATE | ||
| { | ||
| "AWSTemplateFormatVersion": "2010-09-09", | ||
| "Parameters" : { | ||
| "ExpelCustomerOrganizationGUID" : { | ||
| "Type" : "String" | ||
| }, | ||
| "ExpelAssumeRoleARN" : { | ||
| "Type" : "String" | ||
| } | ||
| }, | ||
| "Resources": { | ||
| "IAMR7FYC": { | ||
| "Type": "AWS::IAM::Role", | ||
| "Properties": { | ||
| "ManagedPolicyArns": [ | ||
| { | ||
| "Ref": "IAMMP12SQ7" | ||
| } | ||
| ], | ||
| "RoleName": "ExpelRole", | ||
| "AssumeRolePolicyDocument": { | ||
| "Version": "2012-10-17", | ||
| "Statement": [ | ||
| { | ||
| "Effect": "Allow", | ||
| "Principal": { | ||
| "AWS": { "Ref": "ExpelAssumeRoleARN" } | ||
| }, | ||
| "Action": "sts:AssumeRole", | ||
| "Condition": { | ||
| "StringEquals": { | ||
| "sts:ExternalId": { "Ref": "ExpelCustomerOrganizationGUID" } | ||
| } | ||
| } | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| }, | ||
| "IAMMP12SQ7": { | ||
| "Type": "AWS::IAM::ManagedPolicy", | ||
| "Properties": { | ||
| "ManagedPolicyName": "ExpelAccessPolicy", | ||
| "PolicyDocument": { | ||
| "Version": "2012-10-17", | ||
| "Statement": [ | ||
| { | ||
| "Effect": "Allow", | ||
| "Action": [ | ||
| "cloudtrail:DescribeTrails", | ||
| "cloudtrail:GetTrailStatus", | ||
| "config:GetDiscoveredResourceCounts", | ||
| "config:ListDiscoveredResources", | ||
| "ec2:DescribeInstances", | ||
| "ec2:DescribeRegions", | ||
| "ec2:DescribeSecurityGroups", | ||
| "ec2:DescribeVolumes", | ||
| "ecs:DescribeClusters", | ||
| "ecs:DescribeContainerInstances", | ||
| "ecs:DescribeTaskDefinition", | ||
| "ecs:ListClusters", | ||
| "ecs:ListContainerInstances", | ||
| "ecs:ListTaskDefinitions", | ||
| "eks:DescribeCluster", | ||
| "eks:ListClusters", | ||
| "iam:Get*", | ||
| "iam:List*", | ||
| "lambda:GetFunction", | ||
| "lambda:ListFunctions", | ||
| "lightsail:GetInstances", | ||
| "lightsail:GetRegions", | ||
| "organizations:ListAccounts", | ||
| "rds:DescribeDBInstances", | ||
| "rds:ListTagsForResource", | ||
| "s3:ListAllMyBuckets" | ||
| ], | ||
| "Resource": "*" | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| TEMPLATE | ||
| } |
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