Migrate Cyberwatch from Docker Swarm to MicroK8s

The following procedure explains in a generic way how to migrate from a Cyberwatch installation using Docker Swarm to an installation using MicroK8s.

1. Connect to the Cyberwatch machine with SSH and a root account.

2. If the database is managed internally by Cyberwatch, back up the database:

   sudo cyberwatch backup save
   

3. Stop Cyberwatch:

   sudo cyberwatch stop
   

4. Install MicroK8s according to your context:

   • The server has access to the internet;
   • the server does not have access to the internet.

5. In file /etc/cyberwatch/config.env, replace the value of the key CBW_ORCHESTRATOR from swarm to microk8s.

   -CBW_ORCHESTRATOR=swarm
   +CBW_ORCHESTRATOR=microk8s
   

6. Reconfigure Cyberwatch:

   sudo cyberwatch configure
   

   The configuration script should detect the existence of a secrets.env file. It will then offer to import the content of the file to a new file named secrets.yml. It is important in the case of a migration from Docker Swarm to accept.

7. If the database is managed internally by Cyberwatch, restore the backup:

   sudo cyberwatch backup restore