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| Original file line number | Diff line number | Diff line change |
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| ## Requirements | ||
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| No requirements. | ||
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| ## Providers | ||
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| | Name | Version | | ||
| |------|---------| | ||
| | <a name="provider_aws"></a> [aws](#provider\_aws) | n/a | | ||
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| ## Modules | ||
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| No modules. | ||
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| ## Resources | ||
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| | Name | Type | | ||
| |------|------| | ||
| | [aws_kms_alias.a](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/kms_alias) | resource | | ||
| | [aws_kms_key.kms](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/kms_key) | resource | | ||
| | [aws_caller_identity.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/caller_identity) | data source | | ||
| | [aws_iam_policy_document.kms](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source | | ||
| | [aws_partition.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/partition) | data source | | ||
| | [aws_region.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/region) | data source | | ||
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| ## Inputs | ||
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| | Name | Description | Type | Default | Required | | ||
| |------|-------------|------|---------|:--------:| | ||
| | <a name="input_cloudtrail_name"></a> [cloudtrail\_name](#input\_cloudtrail\_name) | Cloudtrail/trail for attaching currently kms | `string` | `"cloudtrail-default"` | no | | ||
| | <a name="input_kms_deletion_window_in_days"></a> [kms\_deletion\_window\_in\_days](#input\_kms\_deletion\_window\_in\_days) | The waiting period, specified in number of days. After the waiting period ends, AWS KMS deletes the KMS key. | `number` | `30` | no | | ||
| | <a name="input_kms_enable_key_rotation"></a> [kms\_enable\_key\_rotation](#input\_kms\_enable\_key\_rotation) | Specifies whether key rotation is enabled. Defaults to false. | `bool` | `true` | no | | ||
| | <a name="input_tags"></a> [tags](#input\_tags) | n/a | `map(any)` | n/a | yes | | ||
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| ## Outputs | ||
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| | Name | Description | | ||
| |------|-------------| | ||
| | <a name="output_kms_arn"></a> [kms\_arn](#output\_kms\_arn) | Arn of kms created | |
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| # This is a standard kms that frees any cloudtrail/trails from vulnerabilities. | ||
| # Docs: https://dev.to/aws-builders/encrypt-cloudtrail-logs-with-multi-region-key-with-terraform-1hln | ||
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| locals { | ||
| arn_format = "arn:${data.aws_partition.current.partition}" | ||
| } | ||
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| data "aws_partition" "current" {} | ||
| data "aws_caller_identity" "current" {} | ||
| data "aws_region" "current" {} | ||
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| data "aws_iam_policy_document" "kms" { | ||
| statement { | ||
| sid = "Enable Root User Permissions" | ||
| effect = "Allow" | ||
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| actions = [ | ||
| "kms:Create*", | ||
| "kms:Describe*", | ||
| "kms:Enable*", | ||
| "kms:List*", | ||
| "kms:Put*", | ||
| "kms:Update*", | ||
| "kms:Revoke*", | ||
| "kms:Disable*", | ||
| "kms:Get*", | ||
| "kms:Delete*", | ||
| "kms:Tag*", | ||
| "kms:Untag*", | ||
| "kms:ScheduleKeyDeletion", | ||
| "kms:CancelKeyDeletion" | ||
| ] | ||
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| #bridgecrew:skip=CKV_AWS_109:This policy applies only to the key it is attached to | ||
| #bridgecrew:skip=CKV_AWS_111:This policy applies only to the key it is attached to | ||
| resources = [ | ||
| "*" | ||
| ] | ||
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| principals { | ||
| type = "AWS" | ||
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| identifiers = [ | ||
| "${local.arn_format}:iam::${data.aws_caller_identity.current.account_id}:root" | ||
| ] | ||
| } | ||
| } | ||
| statement { | ||
| sid = "Allow CloudTrail to encrypt - ${var.cloudtrail_name}" | ||
| effect = "Allow" | ||
| actions = ["kms:GenerateDataKey*"] | ||
| resources = ["*"] | ||
| principals { | ||
| type = "Service" | ||
| identifiers = ["cloudtrail.amazonaws.com"] | ||
| } | ||
| condition { | ||
| test = "StringLike" | ||
| variable = "kms:EncryptionContext:aws:cloudtrail:arn" | ||
| values = ["arn:aws:cloudtrail:${data.aws_region.current.name}:${data.aws_caller_identity.current.account_id}:trail/${var.cloudtrail_name}"] | ||
| } | ||
| condition { | ||
| test = "StringEquals" | ||
| variable = "aws:SourceArn" | ||
| values = ["arn:aws:cloudtrail:${data.aws_region.current.name}:${data.aws_caller_identity.current.account_id}:trail/${var.cloudtrail_name}"] | ||
| } | ||
| } | ||
| } | ||
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| resource "aws_kms_alias" "a" { | ||
| name = "alias/${var.cloudtrail_name}" | ||
| target_key_id = aws_kms_key.kms.key_id | ||
| } | ||
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| resource "aws_kms_key" "kms" { | ||
| description = "KMS key for cloudtrail: ${var.cloudtrail_name}" | ||
| deletion_window_in_days = var.kms_deletion_window_in_days | ||
| enable_key_rotation = var.kms_enable_key_rotation | ||
| policy = join("", data.aws_iam_policy_document.kms.*.json) | ||
| tags = var.tags | ||
| } |
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| output "kms_arn" { | ||
| description = "Arn of kms created" | ||
| value = aws_kms_key.kms.arn | ||
| } |
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