Migrating data to GitHub Enterprise Server

Applying the imported data on GitHub Enterprise Server

Before you can migrate data to your GitHub Enterprise Server, you must prepare the data and resolve any conflicts. For more information, see "Preparing to migrate data to GitHub Enterprise Server."

After you prepare the data and resolve conflicts, you can apply the imported data on GitHub Enterprise Server.

1. As a site admin, SSH into your target GitHub Enterprise Server instance.

   $ ssh -p 122 admin@HOSTNAME

2. Using the ghe-migrator import command, start the import process. You'll need:

   • Your Migration GUID. For more information, see "Preparing to migrate data to GitHub Enterprise Server."
   • Your personal access token for authentication. The personal access token that you use is only for authentication as a site administrator, and does not require any specific scope. For more information, see "Managing your personal access tokens."

   $ ghe-migrator import /home/admin/MIGRATION-GUID.tar.gz -g MIGRATION-GUID -u USERNAME -p TOKEN
   
   > Starting GitHub::Migrator
   > Import 100% complete /

   • To specify where migration files should be staged append the command with --staging-path=/full/staging/path. Defaults to /data/user/tmp.

Reviewing migration data

By default, ghe-migrator audit returns every record. It also allows you to filter records by:

• The types of records.
• The state of the records.

The record types match those found in the migrated data.

Record type filters

Record type	Filter name
Users	user
Organizations	organization
Repositories	repository
Teams	team
Milestones	milestone
Project boards	project
Issues	issue
Issue comments	issue_comment
Pull requests	pull_request
Pull request reviews	pull_request_review
Commit comments	commit_comment
Pull request review comments	pull_request_review_comment
Releases	release
Actions taken on pull requests or issues	issue_event
Protected branches	protected_branch

Record state filters

Record state	Description
export	The record will be exported.
import	The record will be imported.
map	The record will be mapped.
rename	The record will be renamed.
merge	The record will be merged.
exported	The record was successfully exported.
imported	The record was successfully imported.
mapped	The record was successfully mapped.
renamed	The record was successfully renamed.
merged	The record was successfully merged.
failed_export	The record failed to export.
failed_import	The record failed to be imported.
failed_map	The record failed to be mapped.
failed_rename	The record failed to be renamed.
failed_merge	The record failed to be merged.

Filtering audited records

With the ghe-migrator audit command, you can filter based on the record type using the -m flag. Similarly, you can filter on the import state using the -s flag. The command looks like this:

$ ghe-migrator audit -m RECORD_TYPE -s STATE -g MIGRATION-GUID

For example, to view every successfully imported organization and team, you would enter:

$ ghe-migrator audit -m organization,team -s mapped,renamed -g MIGRATION-GUID
> model_name,source_url,target_url,state
> organization,https://gh.source/octo-org/,https://ghe.target/octo-org/,renamed

We strongly recommend auditing every import that failed. To do that, you will enter:

$ ghe-migrator audit -s failed_import,failed_map,failed_rename,failed_merge -g MIGRATION-GUID
> model_name,source_url,target_url,state
> user,https://gh.source/octocat,https://gh.target/octocat,failed
> repository,https://gh.source/octo-org/octo-project,https://ghe.target/octo-org/octo-project,failed

If you have any concerns about failed imports, contact GitHub Enterprise Support.

Completing the import on GitHub Enterprise Server

After your migration is applied to your target instance and you have reviewed the migration, you''ll unlock the repositories and delete them off the source. Before deleting your source data we recommend waiting around two weeks to ensure that everything is functioning as expected.

Unlocking repositories on the target instance

1. SSH into your GitHub Enterprise Server instance. If your instance comprises multiple nodes, for example if high availability or geo-replication are configured, SSH into the primary node. If you use a cluster, you can SSH into any node. For more information about SSH access, see "Accessing the administrative shell (SSH)."

   $ ssh -p 122 admin@HOSTNAME

2. Unlock all the imported repositories with the ghe-migrator unlock command. You'll need your Migration GUID:

   $ ghe-migrator unlock -g MIGRATION-GUID
   > Unlocked octo-org/octo-project

Unlocking repositories on the source

Unlocking repositories from an organization on GitHub.com

To unlock the repositories on a GitHub.com organization, you'll send a DELETE request to the migration unlock endpoint. You'll need:

• Your access token for authentication
• The unique id of the migration
• The name of the repository to unlock

curl -H "Authorization: Bearer GITHUB_ACCESS_TOKEN" -X DELETE \
  -H "Accept: application/vnd.github.wyandotte-preview+json" \
  https://api.github.com/orgs/ORG-NAME/migrations/ID/repos/REPO_NAME/lock

Deleting repositories from an organization on GitHub.com

After unlocking the GitHub.com organization's repositories, you should delete every repository you previously migrated using the repository delete endpoint. You'll need your access token for authentication:

curl -H "Authorization: Bearer GITHUB_ACCESS_TOKEN" -X DELETE \
  https://api.github.com/repos/ORG-NAME/REPO_NAME

Unlocking repositories from a GitHub Enterprise Server instance

1. SSH into your GitHub Enterprise Server instance. If your instance comprises multiple nodes, for example if high availability or geo-replication are configured, SSH into the primary node. If you use a cluster, you can SSH into any node. For more information about SSH access, see "Accessing the administrative shell (SSH)."

   $ ssh -p 122 admin@HOSTNAME

2. Unlock all the imported repositories with the ghe-migrator unlock command. You'll need your Migration GUID:

   $ ghe-migrator unlock -g MIGRATION-GUID
   > Unlocked octo-org/octo-project