A Terraform module that creates IAM role with provided JSON IAM polices documents.
- If
var.enabled
setfalse
the module can be used as IAM Policy Document Aggregator becauseoutput.policy
always aggregatesvar.policy_documents
- List size
var.policy_documents
limited to 10
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This example creates a role with the name cp-prod-app
with permission to grant read-write access to S3 bucket,
and gives permission to the entities specified in principals_arns
to assume the role.
data "aws_iam_policy_document" "resource_full_access" {
statement {
sid = "FullAccess"
effect = "Allow"
resources = ["arn:aws:s3:::bucketname/path/*"]
actions = [
"s3:PutObject",
"s3:PutObjectAcl",
"s3:GetObject",
"s3:DeleteObject",
"s3:ListBucket",
"s3:ListBucketMultipartUploads",
"s3:GetBucketLocation",
"s3:AbortMultipartUpload",
]
}
}
data "aws_iam_policy_document" "base" {
statement {
sid = "BaseAccess"
actions = [
"s3:ListBucket",
"s3:ListBucketVersions",
]
resources = ["arn:aws:s3:::bucketname"]
effect = "Allow"
}
}
module "role" {
source = "git::https://github.com/cloudposse/terraform-aws-iam-role.git?ref=master"
enabled = "true"
namespace = "cp"
stage = "prod"
name = "app"
principals_arns = ["arn:aws:iam::123456789012:role/workers"]
policy_documents = [
"${data.aws_iam_policy_document.resource_full_access.json}",
"${data.aws_iam_policy_document.base.json}",
]
}
The example
directory contains complete working examples with variations of how to use the module.
Name | Description | Type | Default | Required |
---|---|---|---|---|
attributes | Additional attributes (e.g. 1 ) |
list | <list> |
no |
delimiter | Delimiter to be used between namespace , stage , name and attributes |
string | - |
no |
enabled | Set to false to prevent the module from creating any resources |
string | true |
no |
max_session_duration | The maximum session duration (in seconds) for the role. Can have a value from 1 hour to 12 hours | string | 3600 |
no |
name | Name (e.g. app or chamber ) |
string | - | yes |
namespace | Namespace (e.g. cp or cloudposse ) |
string | - | yes |
policy_documents | List of JSON IAM policy documents | list | <list> |
no |
principals_arns | List of ARNs to allow assuming the role. Could be AWS services or accounts, Kops nodes, IAM users or groups | list | - | yes |
stage | Stage (e.g. prod , dev , staging ) |
string | - | yes |
tags | Additional tags (e.g. map(BusinessUnit ,XYZ ) |
map | <map> |
no |
Name | Description |
---|---|
arn | The Amazon Resource Name (ARN) specifying the role |
id | The stable and unique string identifying the role |
name | The name of the IAM role created |
policy | Role policy document in json format. Outputs always, independent of enabled variable |
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Check out these related projects.
- terraform-aws-iam-policy-document-aggregator - Terraform module to aggregate multiple IAM policy documents into single policy document
- terraform-aws-iam-chamber-s3-role - Terraform module to provision an IAM role with configurable permissions to access S3 as chamber backend
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Copyright © 2017-2019 Cloud Posse, LLC
See LICENSE for full details.
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