# Identity-based policy examples for AWS CodeArtifact
By default, users and roles don't have permission to create or modify CodeArtifact resources. To grant users permission to perform actions on the resources that they need, an IAM administrator can create IAM policies.
To learn how to create an IAM identity-based policy by using these example JSON policy documents, see [Create IAM policies (console)](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_create-console.html) in the *IAM User Guide*.
For details about actions and resource types defined by CodeArtifact, including the format of the ARNs for each of the resource types, see [Actions, resources, and condition keys for AWS CodeArtifact](https://docs.aws.amazon.com/service-authorization/latest/reference/list_awscodeartifact.html) in the *Service Authorization Reference*.
**Topics**
+ [Policy best practices](#security_iam_service-with-iam-policy-best-practices)
+ [Using the CodeArtifact console](#security_iam_id-based-policy-examples-console)
+ [AWS managed (predefined) policies for AWS CodeArtifact](#managed-policies)
+ [Allow a user to view their own permissions](#security_iam_id-based-policy-examples-view-own-permissions)
+ [Allow a user to get information about repositories and domains](#security_iam_id-based-policy-examples-repos-and-domains)
+ [Allow a user to get information about specific domains](#security_iam_id-based-policy-examples-specific-domains)
+ [Allow a user to get information about specific repositories](#security_iam_id-based-policy-examples-specific-repos)
+ [Limit authorization token duration](#limit-token-duration)
## Policy best practices
Identity-based policies determine whether someone can create, access, or delete CodeArtifact resources in your account. These actions can incur costs for your AWS account. When you create or edit identity-based policies, follow these guidelines and recommendations:
+ **Get started with AWS managed policies and move toward least-privilege permissions** – To get started granting permissions to your users and workloads, use the *AWS managed policies* that grant permissions for many common use cases. They are available in your AWS account. We recommend that you reduce permissions further by defining AWS customer managed policies that are specific to your use cases. For more information, see [AWS managed policies](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_managed-vs-inline.html#aws-managed-policies) or [AWS managed policies for job functions](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_job-functions.html) in the *IAM User Guide*.
+ **Apply least-privilege permissions** – When you set permissions with IAM policies, grant only the permissions required to perform a task. You do this by defining the actions that can be taken on specific resources under specific conditions, also known as *least-privilege permissions*. For more information about using IAM to apply permissions, see [ Policies and permissions in IAM](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html) in the *IAM User Guide*.
+ **Use conditions in IAM policies to further restrict access** – You can add a condition to your policies to limit access to actions and resources. For example, you can write a policy condition to specify that all requests must be sent using SSL. You can also use conditions to grant access to service actions if they are used through a specific AWS service, such as CloudFormation. For more information, see [ IAM JSON policy elements: Condition](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_condition.html) in the *IAM User Guide*.
+ **Use IAM Access Analyzer to validate your IAM policies to ensure secure and functional permissions** – IAM Access Analyzer validates new and existing policies so that the policies adhere to the IAM policy language (JSON) and IAM best practices. IAM Access Analyzer provides more than 100 policy checks and actionable recommendations to help you author secure and functional policies. For more information, see [Validate policies with IAM Access Analyzer](https://docs.aws.amazon.com/IAM/latest/UserGuide/access-analyzer-policy-validation.html) in the *IAM User Guide*.
+ **Require multi-factor authentication (MFA)** – If you have a scenario that requires IAM users or a root user in your AWS account, turn on MFA for additional security. To require MFA when API operations are called, add MFA conditions to your policies. For more information, see [ Secure API access with MFA](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_mfa_configure-api-require.html) in the *IAM User Guide*.
For more information about best practices in IAM, see [Security best practices in IAM](https://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html) in the *IAM User Guide*.
## Using the CodeArtifact console
To access the AWS CodeArtifact console, you must have a minimum set of permissions. These permissions must allow you to list and view details about the CodeArtifact resources in your AWS account. If you create an identity-based policy that is more restrictive than the minimum required permissions, the console won't function as intended for entities (users or roles) with that policy.
You don't need to allow minimum console permissions for users that are making calls only to the AWS CLI or the AWS API. Instead, allow access to only the actions that match the API operation that they're trying to perform.
To ensure that users and roles can still use the CodeArtifact console, also attach the `AWSCodeArtifactAdminAccess` or `AWSCodeArtifactReadOnlyAccess` AWS managed policy to the entities. For more information, see [Adding permissions to a user](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_users_change-permissions.html#users_change_permissions-add-console) in the *IAM User Guide*.
## AWS managed (predefined) policies for AWS CodeArtifact
AWS addresses many common use cases by providing standalone IAM policies that are created and administered by AWS. These AWS managed policies grant necessary permissions for common use cases so you can avoid having to investigate what permissions are needed. For more information, see [AWS Managed Policies](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_managed-vs-inline.html#aws-managed-policies) in the *IAM User Guide*.
The following AWS managed policies, which you can attach to users in your account, are specific to AWS CodeArtifact.
+ `AWSCodeArtifactAdminAccess` – Provides full access to CodeArtifact including permissions to administrate CodeArtifact domains.
------
#### [ JSON ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Action": [
"codeartifact:*"
],
"Effect": "Allow",
"Resource": "*"
},
{
"Effect": "Allow",
"Action": "sts:GetServiceBearerToken",
"Resource": "*",
"Condition": {
"StringEquals": {
"sts:AWSServiceName": "codeartifact.amazonaws.com"
}
}
}
]
}
```
------
+ `AWSCodeArtifactReadOnlyAccess` – Provides read-only access to CodeArtifact.
------
#### [ JSON ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Action": [
"codeartifact:Describe*",
"codeartifact:Get*",
"codeartifact:List*",
"codeartifact:ReadFromRepository"
],
"Effect": "Allow",
"Resource": "*"
},
{
"Effect": "Allow",
"Action": "sts:GetServiceBearerToken",
"Resource": "*",
"Condition": {
"StringEquals": {
"sts:AWSServiceName": "codeartifact.amazonaws.com"
}
}
}
]
}
```
------
To create and manage CodeArtifact service roles, you must also attach the AWS managed policy named `IAMFullAccess`.
You can also create your own custom IAM policies to allow permissions for CodeArtifact actions and resources. You can attach these custom policies to the IAM users or groups that require those permissions.
## Allow a user to view their own permissions
This example shows how you might create a policy that allows IAM users to view the inline and managed policies that are attached to their user identity. This policy includes permissions to complete this action on the console or programmatically using the AWS CLI or AWS API.
```
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "ViewOwnUserInfo",
"Effect": "Allow",
"Action": [
"iam:GetUserPolicy",
"iam:ListGroupsForUser",
"iam:ListAttachedUserPolicies",
"iam:ListUserPolicies",
"iam:GetUser"
],
"Resource": ["arn:aws:iam::*:user/${aws:username}"]
},
{
"Sid": "NavigateInConsole",
"Effect": "Allow",
"Action": [
"iam:GetGroupPolicy",
"iam:GetPolicyVersion",
"iam:GetPolicy",
"iam:ListAttachedGroupPolicies",
"iam:ListGroupPolicies",
"iam:ListPolicyVersions",
"iam:ListPolicies",
"iam:ListUsers"
],
"Resource": "*"
}
]
}
```
## Allow a user to get information about repositories and domains
The following policy allows an IAM user or role to list and describe any type of CodeArtifact resource, including domains, repositories, packages, and assets. The policy also includes the `codeArtifact:ReadFromRepository` permission, which allows the principal to fetch packages from a CodeArtifact repository. It does not allow creating new domains or repositories and does not allow publishing new packages.
The `codeartifact:GetAuthorizationToken` and `sts:GetServiceBearerToken` permissions are required to call the `GetAuthorizationToken` API.
------
#### [ JSON ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"codeartifact:List*",
"codeartifact:Describe*",
"codeartifact:Get*",
"codeartifact:Read*"
],
"Resource": "*"
},
{
"Effect": "Allow",
"Action": "sts:GetServiceBearerToken",
"Resource": "*",
"Condition": {
"StringEquals": {
"sts:AWSServiceName": "codeartifact.amazonaws.com"
}
}
}
]
}
```
------
## Allow a user to get information about specific domains
The following shows an example of a permissions policy that allows a user to list domains only in the `us-east-2` region for account `123456789012` for any domain that starts with the name `my`.
------
#### [ JSON ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "codeartifact:ListDomains",
"Resource": "arn:aws:codeartifact:us-east-2:111122223333:domain/my*"
}
]
}
```
------
## Allow a user to get information about specific repositories
The following shows an example of a permissions policy that allows a user to get information about repositories that end with `test`, including information about the packages in them. The user will not be able to publish, create, or delete resources.
The `codeartifact:GetAuthorizationToken` and `sts:GetServiceBearerToken` permissions are required to call the `GetAuthorizationToken` API.
------
#### [ JSON ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"codeartifact:List*",
"codeartifact:Describe*",
"codeartifact:Get*",
"codeartifact:Read*"
],
"Resource": "arn:aws:codeartifact:*:*:repository/*/*test"
},
{
"Effect": "Allow",
"Action": [
"codeartifact:List*",
"codeartifact:Describe*"
],
"Resource": "arn:aws:codeartifact:*:*:package/*/*test/*/*/*"
},
{
"Effect": "Allow",
"Action": "sts:GetServiceBearerToken",
"Resource": "*",
"Condition": {
"StringEquals": {
"sts:AWSServiceName": "codeartifact.amazonaws.com"
}
}
},
{
"Effect": "Allow",
"Action": "codeartifact:GetAuthorizationToken",
"Resource": "*"
}
]
}
```
------
## Limit authorization token duration
Users must authenticate to CodeArtifact with authorization tokens to publish or consume package versions. Authorization tokens are valid only during their configured lifetime. Tokens have a default lifetime of 12 hours. For more information on authorization tokens, see [AWS CodeArtifact authentication and tokens](tokens-authentication.md).
When fetching a token, users can configure the lifetime of the token. Valid values for the lifetime of an authorization token are `0`, and any number between `900` (15 minutes) and `43200` (12 hours). A value of `0` will create a token with a duration equal to the user's role's temporary credentials.
Administrators can limit the valid values for the lifetime of an authorization token by using the `sts:DurationSeconds` condition key in the permissions policy attached to the user or group. If the user attempts to create an authorization token with a lifetime outside of the valid values, the token creation will fail.
The following example policies limit the possible durations of an authorization token created by CodeArtifact users.
**Example policy: Limit token lifetime to exactly 12 hours (43200 seconds)**
With this policy, users will only be able to create authorization tokens with a lifetime of 12 hours.
------
#### [ JSON ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "codeartifact:*",
"Resource": "*"
},
{
"Sid": "sts",
"Effect": "Allow",
"Action": "sts:GetServiceBearerToken",
"Resource": "*",
"Condition": {
"NumericEquals": {
"sts:DurationSeconds": 43200
},
"StringEquals": {
"sts:AWSServiceName": "codeartifact.amazonaws.com"
}
}
}
]
}
```
------
**Example policy: Limit token lifetime between 15 minutes and 1 hour, or equal to the user's temporary credentials period**
With this policy, users will be able to create tokens that are valid between 15 minutes and 1 hour. Users will also be able to create a token that lasts the duration of their role's temporary credentials by specifying `0` for `--durationSeconds`.
------
#### [ JSON ]
****
```
{
"Version":"2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "codeartifact:*",
"Resource": "*"
},
{
"Sid": "sts",
"Effect": "Allow",
"Action": "sts:GetServiceBearerToken",
"Resource": "*",
"Condition": {
"NumericLessThanEquals": {
"sts:DurationSeconds": 3600
},
"StringEquals": {
"sts:AWSServiceName": "codeartifact.amazonaws.com"
}
}
}
]
}
```
------