Migrating organizations from GitHub.com to GitHub Enterprise Cloud

About organization migrations with GitHub Enterprise Importer

You can run your migration with either the GitHub CLI or the API.

The GitHub CLI simplifies the migration process and is recommended for most customers. Advanced customers with heavy customization needs can use the API to build their own integrations with GitHub Enterprise Importer.

To see instructions for using the API, use the tool switcher at the top of the page.

To see instructions for using the GitHub CLI, use the tool switcher at the top of the page.

Prerequisites

To ensure you understand the known support limitations of the Importer, review "About GitHub Enterprise Importer."
We strongly recommend that you perform a trial run of your migration and complete your production migration soon after. To learn more about trial run best practices, see "Preparing to run a migration with GitHub Enterprise Importer."
While not required, we recommend halting work during your production migration. The Importer doesn't support delta migrations, so any changes that happen during the migration will not migrate. If you choose not to halt work during your production migration, you'll need to manually migrate these changes.
For the source organization, you must be an organization owner or have the migrator role. For more information, see "Granting the migrator role for GitHub Enterprise Importer."
For the destination enterprise account, you must be an enterprise owner.

Step 0: Get ready to use the GitHub GraphQL API

To make GraphQL queries, you'll need to write your own scripts or use an HTTP client like Insomnia.

To learn more about getting started with the GitHub GraphQL API, including how to authenticate, see "Forming calls with GraphQL."

Step 1: Get the enterprise ID for your migration destination

As an enterprise owner in GitHub.com, use the following query to return the ID for the enterprise account you want to own the migrated organization. You'll need the enterprise ID to identify your migration destination.

query(
  $slug: String!
){
  enterprise (slug: $slug)
  {
    slug
		id
  }
}

Query variable	Description
`slug`	The slug for your enterprise account, which you can identify by looking at the URL for your enterprise, `https://github.com/enterprises/SLUG`.

Step 2: Start your organization migration

When you start a migration, a single organization and its accompanying data migrates into a brand new organization within the destination enterprise that you identify.

mutation startOrganizationMigration (
  $sourceOrgUrl: URI!,
  $targetOrgName: String!,
  $targetEnterpriseId: ID!,
  $sourceAccessToken: String!,
	$targetAccessToken: String!
){
  startOrganizationMigration( input: {
    sourceOrgUrl: $sourceOrgUrl,
    targetOrgName: $targetOrgName,
    targetEnterpriseId: $targetEnterpriseId,
    sourceAccessToken: $sourceAccessToken,
		targetAccessToken: $targetAccessToken
  }) {
    orgMigration {
      id
    }
  }
}

Query variable	Description
`sourceOrgUrl`	The URL of the source organization, such as `https://github.com/octo-org`.
`targetOrgName`	The name you want the new organization to have. Must be unique on GitHub.com.
`targetEnterpriseId`	The ID of the enterprise that you want to create the new organization in, returned by step 2.
`sourceAccessToken`	Your personal access token for the source organization. For requirements, see "Managing access for GitHub Enterprise Importer."
`targetAccessToken`	Your personal access token for the destination enterprise.

In the next step, you'll use the migration ID returned from the startOrganizationMigration mutation to check the migration status.

Step 3: Check the status of your migration

To detect any migration failures and ensure your migration is working, you can query the OrganizationMigration(s) that you have created to see the migration status using the getMigration query.

The query will return with a status to let you know if the migration is queued, in progress, failed, or completed, plus information about how many repositories are waiting to be migrated. If your migration failed, the Importer will provide a reason for the failure.

query (
  $id: ID!
){
  node( id: $id ) {
    ... on OrganizationMigration {
      id
			sourceOrgUrl
			targetOrgName
      state
      failure_reason
      remaining_repositories_count
      total_repositories_count
    }
  }
}

Query variable	Description
`id`	The `id` of your migration.

Step 1: Install the GEI extension of the GitHub CLI

If this is your first migration, you'll need to install the GEI extension of the GitHub CLI. For more information about the GitHub CLI, see "About GitHub CLI."

Install the GitHub CLI. For installation instructions for GitHub CLI, see the GitHub CLI repository.

Note: You need version 2.4.0 or newer of GitHub CLI. You can check the version you have installed with the gh --version command.
Install the GEI extension.
Shell
```
gh extension install github/gh-gei
```

Any time you need help with the GEI extension, you can use the --help flag with a command. For example, gh gei --help will list all the available commands, and gh gei migrate-repo --help will list all the options available for the migrate-repo command.

Step 2: Update the GEI extension of the GitHub CLI

The GEI extension is updated weekly. To make sure you're using the latest version, update the extension.

gh extension upgrade github/gh-gei

Step 3: Set environment variables

Before you can use the GEI extension to migrate to GitHub Enterprise Cloud, you must create personal access tokens that can access the source organization and destination enterprise, then set the personal access tokens as environment variables.

Create and record a personal access token that meets all the requirements to authenticate for the source organization for organization migrations. For more information, see "Managing access for GitHub Enterprise Importer."
Create and record a personal access token that meets all the requirements to authenticate for the destination enterprise for organization migrations.
Set environment variables for the personal access tokens, replacing TOKEN in the commands below with the personal access tokens you recorded above. Use GH_PAT for the destination enterprise and GH_SOURCE_PAT for the source organization.
- If you're using Terminal, use the export command.
  Shell
```
export GH_PAT="TOKEN"
export GH_SOURCE_PAT="TOKEN"
```
- If you're using PowerShell, use the $env command.
  Shell
```
$env:GH_PAT="TOKEN"
$env:GH_SOURCE_PAT="TOKEN"
```

Step 4: Migrate your organization

To migrate an organization, use the gh gei migrate-org command.

Shell

gh gei migrate-org --github-source-org SOURCE --github-target-org DESTINATION --github-target-enterprise ENTERPRISE

Replace the placeholders in the command above with the following values.

Placeholder	Value
SOURCE	Name of the source organization
DESTINATION	The name you want the new organization to have. Must be unique on GitHub.com.
ENTERPRISE	The slug for your destination enterprise, which you can identify by looking at the URL for your enterprise account, `https://github.com/enterprises/SLUG`.

Step 5: Validate your migration and check the error log

Step 4: Validate your migration and check the error log

After your migration has finished, we recommend that you check the migration log repository. For more information, see "Accessing your migration logs for GitHub Enterprise Importer."

Finally, we recommend you perform a soundness check of your organization and migrated repositories.

Migrating organizations from GitHub.com to GitHub Enterprise Cloud

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