1. Update Guacamole images

sudo docker pull glyptodon/guacd:latest
sudo docker pull glyptodon/guacamole:latest

2. Remove old container

sudo docker rm some-guacd
sudo docker rm some-guacamole

3. Recreate new Guacamole container

sudo docker run --name some-guacd -d -p 4822:4822 glyptodon/guacd

sudo docker run --name some-guacamole --link some-guacd:guacd \
--link some-mysql:mysql \
-e MYSQL_DATABASE=guacamole_db \
-e MYSQL_USER=guacamole_user \
-e MYSQL_PASSWORD=some_password \
-d -p 8080:8080 glyptodon/guacamole

4. Copy the SQL update script from Guacamole container to host

docker cp some-guacamole:/opt/guacamole/mysql/schema/upgrade/upgrade-pre-0.9.8.sql .

5. Copy it into Docker MySQL container directory /tmp/

docker cp upgrade-pre-0.9.8.sql some-mysql:/tmp

6. Go into Docker MySQL container and import it into database

sudo docker exec -it some-mysql bash
mysql -u root -p guacamole_db < /tmp/upgrade-pre-0.9.8.sql

Weitere Informationen für die Installation: guac-dev.org/doc/