Nginx Not Rotating Logs

Problem

As of Kasm Workspace version 1.15.0+ , the kasm_proxy nginx container fails to rotate logs. This can lead to excessive disk usage over time.

Solution

Apply the following commands on each Kasm server with the affect versions.

sudo mkdir /opt/kasm/current/conf/logrotate
sudo vi /opt/kasm/current/conf/logrotate/logrotate.conf
# paste the following content into that file ^
/var/log/external/nginx/*.log {
        su nginx adm
        size 10k
        missingok
        rotate 20
        compress
        delaycompress
        notifempty
        sharedscripts
        postrotate
                if [ -f /var/run/nginx.pid ]; then
                        kill -USR1 `cat /var/run/nginx.pid`
                        nginx -s reload
                fi
        endscript
}
# end file content

sudo vi /opt/kasm/current/docker/docker-compose.yaml
# Edit this file ^, add a volume mapping to the proxy container  proxy:
    container_name: kasm_proxy
    image: "kasmweb/nginx:1.25.3"
    ports:
      - "443:443"
    networks:
      - kasm_default_network
    volumes:
      - /opt/kasm/1.15.0/conf/logrotate/logrotate.conf:/etc/logrotate.conf:ro


sudo docker rm -f kasm_proxy
sudo /opt/kasm/bin/start

# Test that rotation is working
sudo docker exec -it kasm_proxy /usr/sbin/logrotate -v /etc/logrotate.conf
ls -l /opt/kasm/current/log/nginx

Impacted Versions:

Issues were first observed on the following versions, but may impact other versions as well.

1.15.0+

Resolved Versions:

The issue is no longer applicable for the following and newer versions.

None

Related Docs:

None