Polkit Package Update Disrupts Docker Bridge Networking on CentOS 7
Warning to anyone who is preparing for
polkit upgrade due to
polkit package update from
0.112-26.el7_9.1 disrupts Docker bridge networking,
so Docker service restart is required to bring the networking back.
Service restart also restarts the containers, so expect some downtime.
Today I learned it the hard way. I planned to run
yum update -y polkit on hundreds of servers,
because I didn’t see any issues when I tested on select batch of servers before.
Well, I got lucky that I decided to double check on one more server, which also had the Docker service.
I ran the update and immediately received an alert about the app being down. After some troubleshooting we found a registered bug, which was actually closed because maintainers were unable to reproduce.
Here are the system versions:
I hope this helps!