Linux Control Groups and Namespaces

Used for limiting and isolation

Docs

• https://www.kernel.org/doc/Documentation/namespaces/compatibility-list.txt
• https://www.kernel.org/doc/Documentation/cgroup-v1/
• https://www.kernel.org/doc/Documentation/cgroup-v2.txt

Utils

• lsns
• nsenter
• cgroup-tools pkg (cgget, cgset, …)

Network

• ip netns list
• ip netns identify <pid>
• ip netns exec <netns> ip
• or: ip -n|-netns

Processes

• ps axwww -o cgroup
• ps axwww -o cgroup,user,pid,%cpu,%mem,vsz,rss,tname,stat,start,time,comm
• ps axwww -o ipcns,mntns,netns,pidns,userns,utsns,pid,comm

Filesystem

• /proc/<pid>/ns
• /sys/fs/cgroup

Systemd

• https://www.freedesktop.org/software/systemd/man/systemd.resource-control.html
• systemd-cgtop