# Create a Notebook Instance with an Associated Git Repository (CLI)
<a name="nbi-git-create-cli"></a>

**Important**  
Custom IAM policies that allow Amazon SageMaker Studio or Amazon SageMaker Studio Classic to create Amazon SageMaker resources must also grant permissions to add tags to those resources. The permission to add tags to resources is required because Studio and Studio Classic automatically tag any resources they create. If an IAM policy allows Studio and Studio Classic to create resources but does not allow tagging, "AccessDenied" errors can occur when trying to create resources. For more information, see [Provide permissions for tagging SageMaker AI resources](security_iam_id-based-policy-examples.md#grant-tagging-permissions).  
[AWS managed policies for Amazon SageMaker AI](security-iam-awsmanpol.md) that give permissions to create SageMaker resources already include permissions to add tags while creating those resources.

To create a notebook instance and associate Git repositories by using the AWS CLI, use the `create-notebook-instance` command as follows:
+ Specify the repository that you want to use as your default repository as the value of the `default-code-repository` argument. Amazon SageMaker AI clones this repository as a subdirectory in the Jupyter startup directory at `/home/ec2-user/SageMaker`. When you open your notebook instance, it opens in this repository. To use a repository that is stored as a resource in your SageMaker AI account, specify the name of the repository as the value of the `default-code-repository` argument. To use a repository that is not stored in your account, specify the URL of the repository as the value of the `default-code-repository` argument.
+ Specify up to three additional repositories as the value of the `additional-code-repositories` argument. SageMaker AI clones this repository as a subdirectory in the Jupyter startup directory at `/home/ec2-user/SageMaker`, and the repository is excluded from the default repository by adding it to the `.git/info/exclude` directory of the default repository. To use repositories that are stored as resources in your SageMaker AI account, specify the names of the repositories as the value of the `additional-code-repositories` argument. To use repositories that are not stored in your account, specify the URLs of the repositories as the value of the `additional-code-repositories` argument.

For example, the following command creates a notebook instance that has a repository named `MyGitRepo`, that is stored as a resource in your SageMaker AI account, as a default repository, and an additional repository that is hosted on GitHub:

```
aws sagemaker create-notebook-instance \
                    --notebook-instance-name "MyNotebookInstance" \
                    --instance-type "ml.t2.medium" \
                    --role-arn "arn:aws:iam::012345678901:role/service-role/AmazonSageMaker-ExecutionRole-20181129T121390" \
                    --default-code-repository "MyGitRepo" \
                    --additional-code-repositories "https://github.com/myprofile/my-other-repo"
```

**Note**  
If you use an AWS CodeCommit repository that does not contain "SageMaker" in its name, add the `codecommit:GitPull` and `codecommit:GitPush` permissions to the role that you pass as the `role-arn` argument to the `create-notebook-instance` command. For information about how to add permissions to a role, see [Adding and Removing IAM Policies](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_manage-attach-detach.html) in the *AWS Identity and Access Management User Guide*.