更多kubernetes文章: k8s专栏目录
//获取存在的pods信息
[root@seahigh001 kubernetes]# kubectl get pods
NAME READY STATUS RESTARTS AGE
tomcat-cm7mr 1/1 Running 0 1d
tomcat2-p0141 1/1 Running 0 1h
//查看其中一个pods的详细信息
[root@seahigh001 kubernetes]# kubectl describe pod tomcat2-p0141
Name: tomcat2-p0141
Namespace: limit-example
Node: seahigh002/192.168.1.132
Start Time: Thu, 17 Aug 2017 14:56:34 +0800
Labels: app=tomcat2
Status: Running
IP: 172.17.0.4
Controllers: ReplicationController/tomcat2
Containers:
tomcat2:
Container ID:
docker://baaf5f495203e76cd8bc8a58307da9564220ae9c356b055601f40fb9bfada059
Image: tomcat:8.0.45-sh0
Image ID: docker://sha256:ff18882dd9bf90df4d4ff883841f9337ff6bdac0e8e8ceca02d29712a9dc73a2
Port: 8080/TCP
Limits:
cpu: 500m
memory:
128Mi
...
//接下来切换到起docker的机器
//查看cgroup挂载的目录
[root@seahigh002 ~]# mount -t cgroup
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_prio,net_cls)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
//到cpu目录下查看,其它如memory目录同理
[root@seahigh002 ~]# cd /sys/fs/cgroup/cpu/system.slice/
drwxr-xr-x 2 root root 0 8月 17 14:56
docker-baaf5f495203e76cd8bc8a58307da9564220ae9c356b055601f40fb9bfada059.scope
存在与containerID一致的文件夹。
进入目录 查看 memory.limit_in_bytes文件
# cat memory.limit_in_bytes
134217728
单位换算后得到
128MiB,印证与上面配置一致。
//删除container后该文件夹也一起被删除