Commit 2a87508e authored by Nick Nguyen's avatar Nick Nguyen Committed by Valery Sizov

Change node to site for Geo docker registry docs

parent 964c6c08
......@@ -5,16 +5,16 @@ info: To determine the technical writer assigned to the Stage/Group associated w
type: howto
---
# Docker Registry for a secondary node **(PREMIUM SELF)**
# Docker Registry for a secondary site **(PREMIUM SELF)**
You can set up a [Docker Registry](https://docs.docker.com/registry/) on your
**secondary** Geo node that mirrors the one on the **primary** Geo node.
**secondary** Geo site that mirrors the one on the **primary** Geo site.
## Storage support
Docker Registry currently supports a few types of storage. If you choose a
distributed storage (`azure`, `gcs`, `s3`, `swift`, or `oss`) for your Docker
Registry on the **primary** node, you can use the same storage for a **secondary**
Registry on the **primary** site, you can use the same storage for a **secondary**
Docker Registry as well. For more information, read the
[Load balancing considerations](https://docs.docker.com/registry/deploying/#load-balancing-considerations)
when deploying the Registry, and how to set up the storage driver for the GitLab
......@@ -24,22 +24,22 @@ integrated [Container Registry](../../packages/container_registry.md#use-object-
You can enable a storage-agnostic replication so it
can be used for cloud or local storage. Whenever a new image is pushed to the
**primary** node, each **secondary** node will pull it to its own container
**primary** site, each **secondary** site will pull it to its own container
repository.
To configure Docker Registry replication:
1. Configure the [**primary** node](#configure-primary-node).
1. Configure the [**secondary** node](#configure-secondary-node).
1. Configure the [**primary** site](#configure-primary-site).
1. Configure the [**secondary** site](#configure-secondary-site).
1. Verify Docker Registry [replication](#verify-replication).
### Configure **primary** node
### Configure **primary** site
Make sure that you have Container Registry set up and working on
the **primary** node before following the next steps.
the **primary** site before following the next steps.
We need to make Docker Registry send notification events to the
**primary** node.
**primary** site.
1. SSH into your GitLab **primary** server and login as root:
......@@ -85,27 +85,29 @@ We need to make Docker Registry send notification events to the
gitlab-ctl reconfigure
```
### Configure **secondary** node
### Configure **secondary** site
Make sure you have Container Registry set up and working on
the **secondary** node before following the next steps.
the **secondary** site before following the next steps.
The following steps should be done on each **secondary** node you're
The following steps should be done on each **secondary** site you're
expecting to see the Docker images replicated.
Because we need to allow the **secondary** node to communicate securely with
the **primary** node Container Registry, we need to have a single key
pair for all the nodes. The **secondary** node will use this key to
Because we need to allow the **secondary** site to communicate securely with
the **primary** site Container Registry, we need to have a single key
pair for all the sites. The **secondary** site will use this key to
generate a short-lived JWT that is pull-only-capable to access the
**primary** node Container Registry.
**primary** site Container Registry.
1. SSH into the **secondary** node and login as the `root` user:
For each application node on the **secondary** site:
1. SSH into the node and login as the `root` user:
```shell
sudo -i
```
1. Copy `/var/opt/gitlab/gitlab-rails/etc/gitlab-registry.key` from the **primary** to the **secondary** node.
1. Copy `/var/opt/gitlab/gitlab-rails/etc/gitlab-registry.key` from the **primary** to the node.
1. Edit `/etc/gitlab/gitlab.rb`:
......@@ -114,7 +116,7 @@ generate a short-lived JWT that is pull-only-capable to access the
gitlab_rails['geo_registry_replication_primary_api_url'] = 'https://primary.example.com:5050/' # Primary registry address, it will be used by the secondary node to directly communicate to primary registry
```
1. Reconfigure the **secondary** node for the change to take effect:
1. Reconfigure the node for the change to take effect:
```shell
gitlab-ctl reconfigure
......@@ -123,6 +125,6 @@ generate a short-lived JWT that is pull-only-capable to access the
### Verify replication
To verify Container Registry replication is working, go to **Admin Area > Geo**
(`/admin/geo/nodes`) on the **secondary** node.
(`/admin/geo/nodes`) on the **secondary** site.
The initial replication, or "backfill", will probably still be in progress.
You can monitor the synchronization process on each Geo node from the **primary** node's **Geo Nodes** dashboard in your browser.
You can monitor the synchronization process on each Geo site from the **primary** site's **Geo Nodes** dashboard in your browser.
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