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AWS OpsWorks
User Guide (API Version 2013-02-18)

Managing AWS OpsWorks Stacks Permissions by Attaching an IAM Policy

You can specify a user's AWS OpsWorks Stacks permissions by attaching an IAM policy. An attached policy is required for some permissions:

  • Administrative user permissions, such as importing users.

  • Permissions for some actions, such as creating or cloning a stack.

For a complete list of actions that require an attached policy, see Permissions Levels.

You can also use an attached policy to customize permission levels that were granted through the Permissions page. This section provides a brief summary of how to attach an IAM policy to a user to specify AWS OpsWorks Stacks permissions. For more information, see Permissions and Policies.

An IAM policy is a JSON object that contains one or more statements. Each statement element has a list of permissions, which have three basic elements of their own:

Action

The actions that the permission affects. You specify AWS OpsWorks Stacks actions as opsworks:action. An Action can be set to a specific action such as opsworks:CreateStack, which specifies whether the user is allowed to call CreateStack. You can also use wildcards to specify groups of actions. For example, opsworks:Create* specifies all creation actions. For a complete list of AWS OpsWorks Stacks actions, see the AWS OpsWorks Stacks API Reference.

Effect

Whether the specified actions are allowed or denied.

Resource

The AWS resources that the permission affects. AWS OpsWorks Stacks has one resource type, the stack. To specify permissions for a particular stack resource, set Resource to the stack's ARN, which has the following format: arn:aws:opsworks:region:account_id:stack/stack_id/.

You can also use wildcards. For example, setting Resource to * grants permissions for every resource.

For example, the following policy denies the user the ability to stop instances on the stack whose ID is 2860-2f18b4cb-4de5-4429-a149-ff7da9f0d8ee.

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{ "Version": "2012-10-17", "Statement": [ { "Action": "opsworks:StopInstance", "Effect": "Deny", "Resource": "arn:aws:opsworks:*:*:stack/2f18b4cb-4de5-4429-a149-ff7da9f0d8ee/" } ] }

To attach a policy to an IAM user

  1. Open the IAM console.

  2. To create a new managed policy for this user, choose Policies in the navigation pane, and then in the list of policies, choose Create Policy to create a new customer-managed policy with the appropriate permissions. For more information about how to create a customer-managed policy, see Customer Managed Policies.

  3. When you have created the customer-managed policy, choose Users in the IAM console navigation pane, select the user name, and then choose Add permissions.

  4. On the Add permissions page, choose Attach existing policies directly.

  5. In the Policy Type drop-down list, select Customer managed, select the policy that you want to attach, and then choose Next: Review.

  6. On the Review page, choose Add permissions.

For more information about how to create or modify IAM policies, see Permissions and Policies. For some examples of AWS OpsWorks Stacks policies, see Example Policies.