Upgrading Migrate for Anthos to 1.5

The upgrade process you use is based on the environment where you run migctl:

When using a Google Kubernetes Engine (GKE) or Anthos processing cluster in Google Cloud, you run migctl in Cloud Shell.

In Cloud Shell, the latest release of migctl is installed automatically. You then only have to upgrade your processing clusters.
When using a Anthos clusters on VMware processing cluster, install migctl on your admin workstation.

You first download and install the latest release of migctl on your on-repm admin workstation, then use it to upgrade your processing clusters.

To upgrade a previous release of Migrate for Anthos to version 1.5:

Connect to your processing cluster:
Cloud Shell
1. Visit the GKE menu in Cloud Console.
  
  Visit the GKE menu
2. In the list of clusters, locate the cluster you'll be using as a processing cluster and click its Connect button.
3. In the Connect to the cluster dialog, under Command-line access, click Run in Cloud Shell to run the connect command in Cloud Shell.
```
gcloud container clusters get-credentials cluster-name --zone zone-name --project project-name
```
on-prem
1. Connect to your cluster by using a command in the form:
```
gcloud container clusters get-credentials cluster-name --zone zone-name --project project-name
```
Check for any existing migrations and delete them:
1. List current migrations:
```
migctl migration list

NAME                STATUS      CURRENT-OPERATION
my-migration        Completed   GenerateArtifacts
another-migration   Running     GenerateMigrationPlan
```
2. Delete all completed migrations, one by one, using the following command:
```
migctl migration delete my-migration
```
3. For any migration that is currently running, repeat "Step a" above and wait for it to complete. Then delete it.
Upgrade the cluster:
Cloud Shell
In Cloud Shell run the command:
```
migctl setup upgrade
```
Note: If you cancel the upgrade for any reason by entering Ctrl+c, you can rerun it.

The command:
- Uninstalls version 1.4 of Migrate for Anthos and installs version 1.5.
- Upgrades existing 1.4 migration sources to version 1.5.
on-prem
1. Deploy migctl on your admin workstation:
```
wget https://anthos-migrate-release.storage.googleapis.com/v1.5.1/linux/amd64/migctl
sudo cp migctl /usr/local/bin/
sudo chmod +x /usr/local/bin/migctl
. <(migctl completion bash)
```
2. Run the upgrade:
```
migctl setup upgrade --gkeop --json-key=m4a-install.json
```
  Where m4a-install.json is the JSON key file of the service account for accessing Container Registry and Cloud Storage you used to install Migrate for Anthos, as described in Configuring a service account.
  
  Note: If you cancel the upgrade for any reason by entering Ctrl+c, you can rerun it.
  
  The command:
  - Uninstalls version 1.4 of Migrate for Anthos and installs version 1.5.
  - Upgrades existing 1.4 migration sources to version 1.5.
Validate the upgrade by running the migctl doctor command.

Before the upgrade has completed, you might see a message such as the following. If so, wait a few minutes for the upgrade to finish before running migctl doctor again.
```
migctl doctor
[✓] Deployment
  [✓] Admission Controller
  [!] Components
    Job controllers-deploy-cert is not ready
    Job controllers-upgrade is not ready
```
In the following example output, the check mark indicates that Migrate for Anthos has been successfully upgraded.
```
migctl doctor
[✓] Deployment
```
After the upgrade completes, you must recreate your migrations to validate that the migration sources were upgraded successfully. See Creating a migration.
After recreating your migrations successfully, perform the upgrade cleanup step:
```
migctl setup upgrade --cleanup
```

Upgrading Migrate for Anthos to 1.5

Cloud Shell

on-prem

Cloud Shell

on-prem