diff --git a/docs/how-to-guides/new-user-guides/backup-restore-and-disaster-recovery/migrate-rancher-to-new-cluster.md b/docs/how-to-guides/new-user-guides/backup-restore-and-disaster-recovery/migrate-rancher-to-new-cluster.md index 5253521685e..284646372a0 100644 --- a/docs/how-to-guides/new-user-guides/backup-restore-and-disaster-recovery/migrate-rancher-to-new-cluster.md +++ b/docs/how-to-guides/new-user-guides/backup-restore-and-disaster-recovery/migrate-rancher-to-new-cluster.md @@ -42,23 +42,41 @@ Install the [`rancher-backup chart`](https://github.com/rancher/backup-restore-o ``` 1. Install the charts: - + ```bash helm install rancher-backup-crd rancher-charts/rancher-backup-crd -n cattle-resources-system --create-namespace --version $CHART_VERSION helm install rancher-backup rancher-charts/rancher-backup -n cattle-resources-system --version $CHART_VERSION ``` - :::note + :::note - The above assumes an environment with outbound connectivity to Docker Hub. + The above assumes an environment with outbound connectivity to Docker Hub and to charts.rancher.io. - For an **air-gapped environment**, use the following Helm values to pull the `backup-restore-operator` and `kubectl` images from your private registry when you install the rancher-backup Helm chart. + For an **air-gapped environment**, use the following Helm values to pull the `backup-restore-operator` and `kubectl` images from your private registry when you install the rancher-backup Helm chart. - ```bash - --set image.repository /rancher/backup-restore-operator --set global.kubectl.repository=/rancher/kubectl - ``` + ```bash + --set image.repository=/rancher/backup-restore-operator --set global.kubectl.repository=/rancher/kubectl + ``` - ::: + If the host running the Helm commands is **also air-gapped and cannot reach charts.rancher.io**, download the charts on a non-air-gapped host and then install them from local files on the air-gapped host. + + On a non-air-gapped host: + + ```bash + helm repo add rancher-charts https://charts.rancher.io + helm repo update + helm fetch rancher-charts/rancher-backup-crd --version $CHART_VERSION + helm fetch rancher-charts/rancher-backup --version $CHART_VERSION + ``` + + Copy the `rancher-backup-crd-.tgz` and `rancher-backup-.tgz` files to the air-gapped host, then use them to install the charts: + + ```bash + helm install rancher-backup-crd ./rancher-backup-crd-.tgz -n cattle-resources-system --create-namespace + helm install rancher-backup ./rancher-backup-.tgz -n cattle-resources-system --set image.repository=/rancher/backup-restore-operator --set global.kubectl.repository=/rancher/kubectl + ``` + + ::: ### 2. Restore from backup using a Restore custom resource @@ -200,7 +218,7 @@ Full instructions on how to redirect traffic to the migrated cluster differ base ### 6. Scale Down the Original Rancher Instance -After redirecting traffic to the new Rancher environment, **scale the original Rancher instance to 0 replicas** so it no longer contacts your managed clusters. +After redirecting traffic to the new Rancher environment, **scale the original Rancher instance to 0 replicas** so it no longer contacts your managed clusters. Leaving the old server up can cause agents to keep contacting the original `server-url`, which often leaves clusters stuck in **Updating** in the new environment. @@ -225,4 +243,3 @@ kubectl rollout restart deployment cattle-cluster-agent -n cattle-system This triggers a rolling restart of the agent so it re-establishes the connection to the new Rancher environment. ::: -