https://github.com/fl64/k8s-pod-cgroups
kubernets
https://github.com/fl64/k8s-pod-cgroups
cgroup cgroups containerd kubernetes pods
Last synced: 20 days ago
JSON representation
kubernets
- Host: GitHub
- URL: https://github.com/fl64/k8s-pod-cgroups
- Owner: fl64
- Created: 2023-05-28T14:40:17.000Z (about 3 years ago)
- Default Branch: master
- Last Pushed: 2023-05-30T08:40:22.000Z (about 3 years ago)
- Last Synced: 2025-07-27T14:58:12.302Z (10 months ago)
- Topics: cgroup, cgroups, containerd, kubernetes, pods
- Language: Shell
- Homepage:
- Size: 9.77 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# pod cgroup info
A tool to get cgroup parameters for containers of a given pod. Currently only works with containerd as CRI.
## How does it work?
A DaemonSet `cgroup-prober` is created in the cluster which has access to `containerd` socket and the `/proc` `/sys` directories on the host system. From these, the `get-cgroup-info.sh` script gets the necessary data for each container's cgroup.
## How to use?
```bash
./get-cgroup-info.sh -n
# or
./get-cgroup-info.sh -n -l
```
Example:
```bash
/get-cgroup-info.sh -n vms -l "vm.kubevirt.io/name=vm-vm2" -f cpuset
Namespace: vms
Labels: vm.kubevirt.io/name=vm-vm2
Pod Name:
Cgroup name filter: cpuset
Prober pods:
pod: cgroup-prober-4ds9x. node virtlab-pt-0.
pod: cgroup-prober-d9hxt. node virtlab-pt-2.
pod: cgroup-prober-k72bm. node virtlab-pt-1.
Detecting cgroups for pod containers: virt-launcher-vm-vm2-c2n6x in namespace: vms on node: virtlab-pt-1 via pod: cgroup-prober-k72bm.
Container: compute containerd ID: 2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
Process PID: 1946340
Process cgroupPath: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 13:memory:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 12:perf_event:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 11:blkio:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 10:cpuset:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a/housekeeping
- 9:hugetlb:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 8:pids:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 7:net_cls,net_prio:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 6:devices:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 5:cpu,cpuacct:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 4:misc:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 3:rdma:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 2:freezer:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 1:name=systemd:/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
- 0::/kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a
Process CGroups:
cgroup: memory path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: perf_event path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: blkio path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: cpuset path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a/housekeeping.
cpuset.cpu_exclusive:0
cpuset.cpus:2
cpuset.effective_cpus:2
cpuset.effective_mems:0
cpuset.mem_exclusive:0
cpuset.mem_hardwall:0
cpuset.memory_migrate:0
cpuset.memory_pressure:0
cpuset.memory_spread_page:0
cpuset.memory_spread_slab:0
cpuset.mems:0
cpuset.sched_load_balance:1
cpuset.sched_relax_domain_level:-1
cgroup: hugetlb path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: pids path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: net_clsnet_prio: path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: devices path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: cpucpuacct: path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: misc path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: rdma path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: freezer path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: name=systemd path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
cgroup: path: /kubepods/pod8c52fb9d-0a0c-4e4b-bea2-8da0ed0870c5/2cf7b0992492cfc7b4c473e2d022758ee09be9dd3761b3ee2d87598eec9a045a.
```