kubernetes how to set the maximum size of the log file?

Question

How to set the maximum size of the log file? Or enable log rotation. In the documentation I have not found anything about this.

Or it is necessary to write a script for this?

Polyzoan

Did you manage to resolve this – Poyang

I have not found a good way. I wrote a script which gets all namespaces and then all pods in the system. Then I get the information on what host and container id. With this data the script does a SSH $user@$node "sudo truncate -s 0 /var/lib/Docker/containers/$id/$id-json.log" But I have not tested it fully – Polyzoan

Maximum log size for what? What environment are you running on? Log rotation should be setup if you're using any of the default deployments (via salt) – Bridlewise

Answer 1

I don't think kubernetes provides log rotation feature now. You can put logrotate configuration in your host machine. Something like this one:

/var/lib/docker/containers/*/*.log {
  rotate 7
  daily
  size=10M
  compress
  missingok
  delaycompress
  copytruncate
}

Portmanteau