Please beware that container upgrade needs a restart of the container and will STOP ALL RUNNING PROCESS

How to upgrade (one or all containers)

1. Connect to the server as root
2. Go to /home/VNC/ and run ./upgrade-docker-compose.sh <user>, <user> can be either a username (like test) or the keyword all to upgrade all containers
3. Check that all upgraded VNC are running (if you get a password prompt, it is working), you can use list_instances.sh to see all the URL to test

Beware that the stdout will through a couple of "normal" errors :

Pulling vnc ... error

ERROR: for vnc pull access denied for vnc, repository does not exist or may require 'docker login'

ERROR: pull access denied for vnc, repository does not exist or may require 'docker login'

This is due to the fact that the vnc image is not in the Docker Hub repositories but in our Gitlab. Therefore, the image pull fails and the image is built right after.

Technical details

The script /home/VNC/upgrade-docker-compose.sh, does the following steps:

1. Pull last version of the vnc source repository
2. Pull external docker images
3. Build local vnc image
4. Copy docker-compose.yml from source repository to user(s) directory(ies)
5. Restart the container(s)