Upgrading GitHub Enterprise Server

Preparing to upgrade

1. Determine an upgrade strategy and choose a version to upgrade to. For more information, see "Upgrade requirements" and refer to the Asistente de mejora to find the upgrade path from your current release version.

2. Create a fresh backup of your primary instance with the GitHub Enterprise Server Backup Utilities. For more information, see the README.md file in the GitHub Enterprise Server Backup Utilities project documentation.

   Note: Your GitHub Enterprise Server Backup Utilities version needs to be the same version as, or at most two versions ahead of, your GitHub Enterprise Server instance. For more information, see "Upgrading GitHub Enterprise Server Backup Utilities."

3. If your GitHub Enterprise Server instance uses ephemeral self-hosted runners for GitHub Actions and you've disabled automatic updates, upgrade your runners to the version of the runner application that your upgraded instance will run.

4. If you are upgrading using an upgrade package, schedule a maintenance window for GitHub Enterprise Server end users. If you are using a hotpatch, maintenance mode is not required.

   Note: The maintenance window depends on the type of upgrade you perform. Upgrades using a hotpatch usually don't require a maintenance window. Sometimes a reboot is required, which you can perform at a later time. Following the versioning scheme of MAJOR.FEATURE.PATCH, patch releases using an upgrade package typically require less than five minutes of downtime. Feature releases that include data migrations take longer depending on storage performance and the amount of data that's migrated. For more information, see "Enabling and scheduling maintenance mode."

Taking a snapshot

A snapshot is a checkpoint of a virtual machine (VM) at a point in time. We highly recommend taking a snapshot before upgrading your virtual machine so that if an upgrade fails, you can revert your VM back to the snapshot. We only recommend taking a VM snapshot when the appliance is powered down or in maintenance mode and all background jobs have finished.

If you're upgrading to a new feature release, you must take a VM snapshot. If you're upgrading to a patch release, you can attach the existing data disk.

There are two types of snapshots:

• VM snapshots save your entire VM state, including user data and configuration data. This snapshot method requires a large amount of disk space and is time consuming.

• Data disk snapshots only save your user data.

  Notes:

  • Some platforms don't allow you to take a snapshot of just your data disk. For these platforms, you'll need to take a snapshot of the entire VM.
  • If your hypervisor does not support full VM snapshots, you should take a snapshot of the root disk and data disk in quick succession.

Platform	Snapshot method	Snapshot documentation URL
Amazon AWS	Disk	https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-creating-snapshot.html
Azure	VM	https://docs.microsoft.com/azure/backup/backup-azure-vms-first-look-arm
Hyper-V	VM	https://docs.microsoft.com/windows-server/virtualization/hyper-v/manage/enable-or-disable-checkpoints-in-hyper-v
Google Compute Engine	Disk	https://cloud.google.com/compute/docs/disks/create-snapshots
VMware	VM	https://pubs.vmware.com/vsphere-50/topic/com.vmware.wssdk.pg.doc_50/PG_Ch11_VM_Manage.13.3.html
XenServer	VM	https://docs.citrix.com/en-us/xencenter/current-release/vms-snapshots.html

Upgrading with a hotpatch

You can upgrade GitHub Enterprise Server to the latest patch release using a hotpatch.

You can use hotpatching to upgrade to a newer patch release, but not a feature release. For example, you can upgrade from 2.10.1 to 2.10.5 because they are in the same feature series, but not from 2.10.9 to 2.11.0 because they are in a different feature series.

Hotpatches do not generally require a reboot. If a hotpatch does require a reboot, the GitHub Enterprise Server release notes will indicate the requirement.

Hotpatches require a configuration run, which can cause a brief period of errors or unresponsiveness for some or all services on your GitHub Enterprise Server instance. You are not required to enable maintenance mode during installation of a hotpatch, but doing so will guarantee that users see a maintenance page instead of errors or timeouts. For more information, see "Enabling and scheduling maintenance mode."

Using the Consola de administración, you can install a hotpatch immediately or schedule it for later installation. You can use the administrative shell to install a hotpatch with the ghe-upgrade utility. For more information, see "Upgrade requirements."

Upgrading a single appliance with a hotpatch

Installing a hotpatch using the Consola de administración

You can use the Consola de administración to upgrade with a hotpatch by enabling automatic updates. You will then be presented with the latest available version of GitHub Enterprise Server that you can upgrade to.

If the upgrade target you're presented with is a feature release instead of a patch release, you cannot use the Consola de administración to install a hotpatch. You must install the hotpatch using the administrative shell instead. For more information, see "Installing a hotpatch using the administrative shell."

1. Enable automatic updates. For more information, see "Enabling automatic updates."

2. Desde una cuenta administrativa de GitHub Enterprise Server, en la esquina superior derecha de cualquier página, haz clic en .

   

3. Si todavía no está en la página "Administrador del sitio", en la esquina superior izquierda, haga clic en Administrador del sitio.

   

4. En la barra lateral de la izquierda, haga clic en Consola de administración .

5. En la parte superior de Consola de administración, haga clic en Updates.

6. When a new hotpatch has been downloaded, use the Install package drop-down menu:

   • To install immediately, select Now:
   • To install later, select a later date.

7. Click Install.

Installing a hotpatch using the administrative shell

1. SSH en your GitHub Enterprise Server instance. Si la instancia consta de varios nodos, por ejemplo, si la alta disponibilidad o la replicación geográfica están configuradas, utiliza SSH en el nodo principal. Si usas un clúster, puedes utilizar SSH en cualquier nodo. Para obtener más información acerca del acceso a SSH, consulta "Acceso al shell administrativo (SSH)".

   $ ssh -p 122 admin@HOSTNAME

2. Vaya a la página de versiones de GitHub Enterprise Server. Junto a la versión a la que va a actualizar, haga clic en Download y después en la pestaña Upgrading. Copy the URL for the upgrade hotpackage (.hpkg file).

3. Descargue el paquete de actualización a your GitHub Enterprise Server instance mediante curl :

   admin@HOSTNAME:~$ curl -L -O UPGRADE-PKG-URL

4. Run the ghe-upgrade command using the package file name:

   admin@HOSTNAME:~$ ghe-upgrade GITHUB-UPGRADE.hpkg
   *** verifying upgrade package signature...

5. If a reboot is required for updates for kernel, MySQL, Elasticsearch or other programs, the hotpatch upgrade script notifies you.

Upgrading an appliance that has replica instances using a hotpatch

Appliances configured for high-availability and geo-replication use replica instances in addition to primary instances. To upgrade these appliances, you'll need to upgrade both the primary instance and all replica instances, one at a time.

Upgrading the primary instance

1. Upgrade the primary instance by following the instructions in "Installing a hotpatch using the administrative shell."

Upgrading a replica instance

1. Upgrade the replica instance by following the instructions in "Installing a hotpatch using the administrative shell." If you are using multiple replicas for Geo-replication, you must repeat this procedure to upgrade each replica one at a time.

2. Conéctate a la instancia réplica a través de SSH como el usuario "admin" en el puerto 122:

   $ ssh -p 122 admin@replica-host

3. Verifica la mejora ejecutando:

   $ ghe-version

Upgrading with an upgrade package

While you can use a hotpatch to upgrade to the latest patch release within a feature series, you must use an upgrade package to upgrade to a newer feature release. For example to upgrade from 2.11.10 to 2.12.4 you must use an upgrade package since these are in different feature series. For more information, see "Upgrade requirements."

Upgrading a single appliance with an upgrade package

1. SSH en your GitHub Enterprise Server instance. Si la instancia consta de varios nodos, por ejemplo, si la alta disponibilidad o la replicación geográfica están configuradas, utiliza SSH en el nodo principal. Si usas un clúster, puedes utilizar SSH en cualquier nodo. Para obtener más información acerca del acceso a SSH, consulta "Acceso al shell administrativo (SSH)".

   $ ssh -p 122 admin@HOSTNAME

2. Vaya a la página de versiones de GitHub Enterprise Server. Junto a la versión a la que va a actualizar, haga clic en Download y después en la pestaña Upgrading. Select the appropriate platform and copy the URL for the upgrade package (.pkg file).

3. Descargue el paquete de actualización a your GitHub Enterprise Server instance mediante curl :

   admin@HOSTNAME:~$ curl -L -O UPGRADE-PKG-URL

4. Enable maintenance mode and wait for all active processes to complete on the GitHub Enterprise Server instance. For more information, see "Enabling and scheduling maintenance mode."

   Note: When upgrading the primary appliance in a High Availability configuration, the appliance should already be in maintenance mode if you are following the instructions in "Upgrading the primary instance."

5. Run the ghe-upgrade command using the package file name:

   admin@HOSTNAME:~$ ghe-upgrade GITHUB-UPGRADE.pkg
   *** verifying upgrade package signature...

6. Confirm that you'd like to continue with the upgrade and restart after the package signature verifies. The new root filesystem writes to the secondary partition and the instance automatically restarts in maintenance mode:

   *** applying update...
   This package will upgrade your installation to version VERSION-NUMBER
   Current root partition: /dev/xvda1 [VERSION-NUMBER]
   Target root partition:  /dev/xvda2
   Proceed with installation? [y/N]

7. For single appliance upgrades, disable maintenance mode so users can use your GitHub Enterprise Server instance.

   Note: When upgrading appliances in a High Availability configuration you should remain in maintenance mode until you have upgraded all of the replicas and replication is current. For more information, see "Upgrading a replica instance."

Upgrading an appliance that has replica instances using an upgrade package

Appliances configured for high-availability and geo-replication use replica instances in addition to primary instances. To upgrade these appliances, you'll need to upgrade both the primary instance and all replica instances, one at a time.

Upgrading the primary instance

1. On the primary instance, enable maintenance mode and wait for all active processes to complete. For more information, see "Enabling maintenance mode."
2. Conéctate a la instancia réplica a través de SSH como el usuario "admin" en el puerto 122:

   $ ssh -p 122 admin@replica-host

3. On the replica instance, or on all replica instances if you're running multiple replica instances as part of geo-replication, run ghe-repl-stop to stop replication.
4. Upgrade the primary instance by following the instructions in "Upgrading a single appliance with an upgrade package."

Upgrading a replica instance

1. Upgrade the replica instance by following the instructions in "Upgrading a single appliance with an upgrade package." If you are using multiple replicas for Geo-replication, you must repeat this procedure to upgrade each replica one at a time.

2. Conéctate a la instancia réplica a través de SSH como el usuario "admin" en el puerto 122:

   $ ssh -p 122 admin@replica-host

3. Verifica la mejora ejecutando:

   $ ghe-version

4. En la instancia de réplica, para iniciar la replicación, ejecuta ghe-repl-start.

5. En la instancia de réplica, para garantizar que los servicios de replicación se ejecuten correctamente, ejecute ghe-repl-status. Este comando devolverá OK para todos los servicios cuando hay una replicación correcta en curso y la réplica se haya actualizado. If the command returns Replication is not running, the replication may still be starting. Wait about one minute before running ghe-repl-status again.

   Note: While the resync is in progress ghe-repl-status may indicate that replication is behind. For example, you may see the following message.

   CRITICAL: git replication is behind the primary by more than 1007 repositories and/or gists
   

   - If `ghe-repl-status` did not return `OK`, contact Soporte técnico para GitHub Enterprise. For more information, see "[Receiving help from Soporte de GitHub](/admin/enterprise-support/receiving-help-from-github-support)."

6. When you have completed upgrading the last replica, and the resync is complete, disable maintenance mode so users can use your GitHub Enterprise Server instance.

Restoring from a failed upgrade

If an upgrade fails or is interrupted, you should revert your instance back to its previous state. The process for completing this depends on the type of upgrade.

Rolling back a patch release

To roll back a patch release, use the ghe-upgrade command with the --allow-patch-rollback switch. Before rolling back, replication must be temporarily stopped by running ghe-repl-stop on all replica instances. Al revertir una actualización, tendrá que usar un archivo de paquete de actualización con la extensión .pkg. Los archivos de paquete de revisión en caliente con la extensión .hpkg no se admiten.

ghe-upgrade --allow-patch-rollback EARLIER-RELEASE-UPGRADE-PACKAGE.pkg

Se requiere que reinicies después de ejecutar el comando. Bajar de categoría una mejora previa no afecta la partición de datos, ya que las migraciones no se ejecutan en lanzamientos parchados.

Once the rollback is complete, restart replication by running ghe-repl-start on all replicas.

For more information, see "Command-line utilities."

Rolling back a feature release

To roll back from a feature release, restore from a VM snapshot to ensure that root and data partitions are in a consistent state. For more information, see "Taking a snapshot."

Further reading

• "About upgrades to new releases"