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air gap topic edits
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Mark Bishop
@@ -6,26 +6,26 @@ Rancher supports installing from a private registry. In every [release](https://
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>**Prerequisite:** It is assumed you either have your own private registry or other means of distributing docker images to your machine. If you need help with creating a private registry, please refer to the [Docker documentation for private registries](https://docs.docker.com/registry/).
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>**Note:** In Rancher v2.0.0, registries with authentication are not supported for installing from a private registry. The Docker images can only be pulled from a registry without authentication enabled. This limitation only applies to Docker images.
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>**Note:** In Rancher v2.0.x, registries with authentication are not supported for installing from a private registry. The Docker images can only be pulled from a registry without authentication enabled. This limitation only applies to Docker images.
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## Release files
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## Release Files
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* **rancher-images.txt**: Contains all images needed for that release.
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* **rancher-save-images.sh**: This script will pull all needed images from DockerHub, and save all of the images as a compressed file called `rancher-images.tar.gz`. This file can be transferred to your on-premise host that can access your private registry.
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* **rancher-load-images.sh**: This script will load images from rancher-images.tar.gz and push them to your private registry. You have to supply the hostname of your private registry as first argument to the script.<br/>`rancher-load-images.sh registry.yourdomain.com:5000`
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## Making the Rancher images available
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## Making the Rancher Images Available
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We will cover two scenarios:
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* **Scenario 1**: You have a node that can access DockerHub to pull and save the images, and a separate node(s) that access your private registry to push the images.
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* **Scenario 2**: You have node(s) that can access both DockerHub and your private registry.
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### Scenario 1: A node that can access DockerHub, separate node(s) that can access the private registry
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### Scenario 1: A Node that Can Access DockerHub, Separate Node(s) That Can Access the Private Registry
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1. Browse to the release page of your version (i.e. `https://github.com/rancher/rancher/releases/tag/v2.0.0`) and download `rancher-save-images.sh` and `rancher-load-images.sh`
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1. Browse to the release page of your version of Rancher (e.g. `https://github.com/rancher/rancher/releases/tag/v2.0.0`) and download `rancher-save-images.sh` and `rancher-load-images.sh`.
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2. Transfer and run `rancher-save-images.sh` on the host the can access DockerHub. This will require at least 20GB of disk space.
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@@ -37,7 +37,7 @@ We will cover two scenarios:
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1. Browse to the release page of your version (i.e. `https://github.com/rancher/rancher/releases/tag/v2.0.0`) and download `rancher-images.txt`
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1. Browse to the release page of your version of Rancher (e.g. `https://github.com/rancher/rancher/releases/tag/v2.0.0`) and download `rancher-images.txt`.
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2. Pull all the images present in `rancher-images.txt`, re-tag each image with the location of your registry, and push the image to the registry. This will require at least 20GB of disk space. See an example script below:
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```
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@@ -52,7 +52,7 @@ We will cover two scenarios:
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done
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```
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## Completing the Rancher installation
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## Completing the Rancher Installation
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After your private registry is setup on all node(s) for your Rancher installation, complete your Rancher installation.
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@@ -65,21 +65,26 @@ Complete installation of Rancher using the instructions in [Single Node Install]
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>
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> Example:
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> ```
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docker run -d --restart=unless-stopped \
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-p 80:80 -p 443:443 \
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<registry.yourdomain.com:port>/rancher/rancher:latest
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```
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> docker run -d --restart=unless-stopped \
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> -p 80:80 -p 443:443 \
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> <registry.yourdomain.com:port>/rancher/rancher:latest
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```
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## Configuring Rancher to use the private registry
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## Configuring Rancher to Use the Private Registry
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Rancher needs to be configured to use the private registry as source for the needed images.
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1. Go into the Settings view.
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1. Go into the **Settings** view.
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2. Look for the setting called `system-default-registry` and choose **Edit**.
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3. Change the value to your registry, e.g. `registry.yourdomain.com:port`. Do not prefix the registry with `http://` or `https://`
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3. Change the value to your registry (e.g. `registry.yourdomain.com:port`). Do not prefix the registry with `http://` or `https://`.
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>**Note:** If you want to configure the setting when starting the rancher/rancher container, you can use the environment variable `CATTLE_SYSTEM_DEFAULT_REGISTRY`.
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@@ -3,63 +3,58 @@ title: High Availability (HA) Upgrade
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weight: 1020
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---
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The following instructions will help guide you through upgrading Rancher server [HA installed with the Helm package manager]({{< baseurl >}}/rancher/v2.x/en/installation/ha/).
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The following instructions will guide you through upgrading a high-availability Rancher Server that was [installed using Helm package manager]({{< baseurl >}}/rancher/v2.x/en/installation/ha/).
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If you installed Rancher using the RKE Add-On yaml, see these docs to migrate or upgrade.
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* [Migrating from RKE Add-On Install]({{< baseurl >}}/rancher/v2.x/en/upgrades/migrating-from-rke-add-on)
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* [High Availability (HA) Upgrade - RKE Add-On Install]({{< baseurl >}}/rancher/v2.x/en/upgrades/ha-server-upgrade)
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>**Note:** If you installed Rancher using the RKE Add-on yaml, see the following documents to migrate or upgrade.
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>
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>* [Migrating from RKE Add-On Install]({{< baseurl >}}/rancher/v2.x/en/upgrades/migrating-from-rke-add-on)
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>* [High Availability (HA) Upgrade - RKE Add-On Install]({{< baseurl >}}/rancher/v2.x/en/upgrades/ha-server-upgrade)
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## Prerequisites
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### kubectl
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- **Backup your Rancher cluster**
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Follow the `kubectl` configuration instructions and confirm that you can connect to the Kubernetes cluster running Rancher server.
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[Take a one-time snapshot]({{< baseurl >}}/rancher/v2.x/en/backups/backups/ha-backups/#option-b-one-time-snapshots)
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of your Rancher Server cluster. You'll use the snapshot as a restoration point if something goes wrong during upgrade.
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* [kubectl Installation and Config]({{< baseurl >}}/rancher/v2.x/en/faq/kubectl)
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- **kubectl**
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### helm
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Follow the kubectl [configuration instructions]({{< baseurl >}}/rancher/v2.x/en/faq/kubectl) and confirm that you can connect to the Kubernetes cluster running Rancher server.
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Install or update `helm` to the latest version.
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- **Helm**
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* [Installing helm](https://docs.helm.sh/using_helm/#installing-helm)
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[Install or update](https://docs.helm.sh/using_helm/#installing-helm) Helm to the latest version.
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### tiller
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- **Tiller**
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Update the helm agent, `tiller` on your cluster.
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Update the helm agent, Tiller, on your cluster.
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```
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helm init --upgrade --service-account tiller
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```
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## Backup Your Rancher Cluster
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Follow the instructions to take a one-time snapshot of your Rancher server cluster.
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* [HA Backups: Take a One-Time Snapshot]({{< baseurl >}}/rancher/v2.x/en/backups/backups/ha-backups/#option-b-one-time-snapshots)
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```
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helm init --upgrade --service-account tiller
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```
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## Upgrade Rancher
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Update your local helm repo cache.
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1. Update your local helm repo cache.
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```
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helm repo update
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```
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```
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helm repo update
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```
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Get the set values from current Rancher release.
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2. Get the set values from current Rancher release.
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```
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helm get values rancher
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```
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helm get values rancher
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hostname: rancher.my.org
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```
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hostname: rancher.my.org
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```
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Take the values above and use `helm` with `--set` options to upgrade Rancher to the latest version.
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3. Take the values above and use `helm` with `--set` options to upgrade Rancher to the latest version.
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```
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helm upgrade rancher rancher-stable/rancher --set hostname=rancher.my.org
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```
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```
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helm upgrade rancher rancher-stable/rancher --set hostname=rancher.my.org
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```
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## Rolling Back
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Should something go wrong, follow the [HA Rollback]({{< baseurl >}}/rancher/v2.x/en/upgrades/rollbacks/ha-server-rollbacks/) instructions to restore the snapshot you took before you preformed the upgrade.
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Should something go wrong, follow the [HA Rollback]({{< baseurl >}}/rancher/v2.x/en/upgrades/rollbacks/ha-server-rollbacks/) instructions to restore the snapshot you took before you preformed the upgrade.
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