There was a recent post about whether to enable ufw and it made me ask: how protected I am from a rogue docker container? I have a single server with 15-20 docker containers running at any given time. Should one get hacked or be malicious from the get go, are there (hopefully easy to implement for an armchair sysadmin) best practices to mitigate such an event? Thanks!
Some good advice here. I would say avoid using network_mode: host unless you really have to. And make use of no-new-privs feature. This is easy to do and IMO bare minimum for preventing rogue actions from containers.