Linux中创建目录时报错“mkdir: cannot create directory ‘gitlab-stu’: No space left on device”，磁盘空间不足。
使用df命令查看，发现 / 下面use%占满了：
查看inode使用情况：
可以看到docker的数据大部分存放在/var/lib/docker下，生成了大量的数据和日志，可以清理掉未使用的容器：
[root@k8s-master overlay2]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
050981b257d8 08616d26b8e7 "start_runit" 18 seconds ago Up 17 seconds k8s_calico-node_calico-node-gz8tl_kube-system_ac2e42aa-eac5-41aa-ba3e-43f8555b60c1_11
68cf37fa7c50 d4893b67e97f "kube-scheduler --au…" About a minute ago Up About a minute k8s_kube-scheduler_kube-scheduler-k8s-master_kube-system_56e5f657c0f5842192c9009d22729ac6_22
871ea98c249e fce326961ae2 "etcd --advertise-cl…" About a minute ago Exited (1) About a minute ago k8s_etcd_etcd-k8s-master_kube-system_8a70357dc3020758ccd4fa01d7b841e7_10
3fe287a975f1 2b5e9c96248f "kube-apiserver --ad…" About a minute ago Exited (1) About a minute ago k8s_kube-apiserver_kube-apiserver-k8s-master_kube-system_bd2fc8f7feadf4ab1e8a6bdf57206b9e_12
71a8e2a2bc5f 5e785d005ccc "/usr/bin/kube-contr…" About a minute ago Exited (1) 21 seconds ago k8s_calico-kube-controllers_calico-kube-controllers-697d846cf4-qfkv6_kube-system_125c8aa2-890d-4d94-babb-060497bfbf21_10
5fc1e1310404 08616d26b8e7 "start_runit" About a minute ago Exited (137) 18 seconds ago k8s_calico-node_calico-node-gz8tl_kube-system_ac2e42aa-eac5-41aa-ba3e-43f8555b60c1_10
96ddfb3c5c3e c7ab721dfdae "kube-controller-man…" About a minute ago Up About a minute k8s_kube-controller-manager_kube-controller-manager-k8s-master_kube-system_7319ae284ccecb49c0164089eaf03446_20
b52bab1b74a2 08616d26b8e7 "calico-node -init -…" 2 hours ago Exited (0) 2 hours ago k8s_mount-bpffs_calico-node-gz8tl_kube-system_ac2e42aa-eac5-41aa-ba3e-43f8555b60c1_0
0e084fb550b6 d70a5947d57e "/opt/cni/bin/install" 2 hours ago Exited (0) 2 hours ago k8s_install-cni_calico-node-gz8tl_kube-system_ac2e42aa-eac5-41aa-ba3e-43f8555b60c1_0
afba773490d7 swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/calico/cni "/opt/cni/bin/calico…" 2 hours ago Exited (0) 2 hours ago k8s_upgrade-ipam_calico-node-gz8tl_kube-system_ac2e42aa-eac5-41aa-ba3e-43f8555b60c1_0
915d71a80fea 8d147537fb7d "/coredns -conf /etc…" 2 hours ago Up 2 hours k8s_coredns_coredns-7d89d9b6b8-92d8s_kube-system_7a32890f-7f41-4dcc-b38e-54d1f1c2dfb3_9
100aee7db136 8d147537fb7d "/coredns -conf /etc…" 2 hours ago Up 2 hours k8s_coredns_coredns-7d89d9b6b8-srqz6_kube-system_eae63baf-04ee-4b88-a69e-072466f5ae17_9
6621ebec7331 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_coredns-7d89d9b6b8-92d8s_kube-system_7a32890f-7f41-4dcc-b38e-54d1f1c2dfb3_9
7981e16863b2 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_coredns-7d89d9b6b8-srqz6_kube-system_eae63baf-04ee-4b88-a69e-072466f5ae17_9
ee6ebd069c77 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_calico-kube-controllers-697d846cf4-qfkv6_kube-system_125c8aa2-890d-4d94-babb-060497bfbf21_9
a3521d6e24de c7ab721dfdae "kube-controller-man…" 2 hours ago Up 2 hours k8s_kube-controller-manager_kube-controller-manager-k8s-master_kube-system_7319ae284ccecb49c0164089eaf03446_19
faff6b163cdc registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_kube-apiserver-k8s-master_kube-system_bd2fc8f7feadf4ab1e8a6bdf57206b9e_10
7b4edd0b9b03 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_kube-controller-manager-k8s-master_kube-system_7319ae284ccecb49c0164089eaf03446_10
f3aa9bcbf5bd 77c8bfac1781 "/usr/local/bin/kube…" 2 hours ago Up 2 hours k8s_kube-proxy_kube-proxy-psr4m_kube-system_d352fd1c-b81a-40f1-a870-fe2940ca771b_9
2eb31363f4f8 d4893b67e97f "kube-scheduler --au…" 2 hours ago Up 2 hours k8s_kube-scheduler_kube-scheduler-k8s-master_kube-system_56e5f657c0f5842192c9009d22729ac6_21
0a7ccb4588c7 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_calico-node-gz8tl_kube-system_ac2e42aa-eac5-41aa-ba3e-43f8555b60c1_9
b0f7ee4117b5 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_kube-scheduler-k8s-master_kube-system_56e5f657c0f5842192c9009d22729ac6_9
00a1cece5698 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_kube-proxy-psr4m_kube-system_d352fd1c-b81a-40f1-a870-fe2940ca771b_9
03401b565985 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Up 2 hours k8s_POD_etcd-k8s-master_kube-system_8a70357dc3020758ccd4fa01d7b841e7_9
ca05b972bb38 c7ab721dfdae "kube-controller-man…" 2 hours ago Exited (2) 2 hours ago k8s_kube-controller-manager_kube-controller-manager-k8s-master_kube-system_7319ae284ccecb49c0164089eaf03446_18
44913e2f7d7e registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 hours ago Exited (0) 2 hours ago k8s_POD_kube-controller-manager-k8s-master_kube-system_7319ae284ccecb49c0164089eaf03446_9
0ed49154f107 d4893b67e97f "kube-scheduler --au…" 4 hours ago Exited (0) 2 hours ago k8s_kube-scheduler_kube-scheduler-k8s-master_kube-system_56e5f657c0f5842192c9009d22729ac6_20
65d2e6dceb40 8d147537fb7d "/coredns -conf /etc…" 2 days ago Exited (0) 2 hours ago k8s_coredns_coredns-7d89d9b6b8-92d8s_kube-system_7a32890f-7f41-4dcc-b38e-54d1f1c2dfb3_8
07262e9c7e1a 8d147537fb7d "/coredns -conf /etc…" 2 days ago Exited (0) 2 hours ago k8s_coredns_coredns-7d89d9b6b8-srqz6_kube-system_eae63baf-04ee-4b88-a69e-072466f5ae17_8
13cbd3171aff registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 days ago Exited (0) 2 hours ago k8s_POD_coredns-7d89d9b6b8-92d8s_kube-system_7a32890f-7f41-4dcc-b38e-54d1f1c2dfb3_8
c229d661f154 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 days ago Exited (0) 2 hours ago k8s_POD_coredns-7d89d9b6b8-srqz6_kube-system_eae63baf-04ee-4b88-a69e-072466f5ae17_8
c5379cc4d269 77c8bfac1781 "/usr/local/bin/kube…" 2 days ago Exited (2) 2 hours ago k8s_kube-proxy_kube-proxy-psr4m_kube-system_d352fd1c-b81a-40f1-a870-fe2940ca771b_8
56b4723f5b57 registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 days ago Exited (0) 2 hours ago k8s_POD_kube-proxy-psr4m_kube-system_d352fd1c-b81a-40f1-a870-fe2940ca771b_8
2d40fd60fe8b registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5 "/pause" 2 days ago Exited (0) 2 hours ago k8s_POD_kube-scheduler-k8s-master_kube-system_56e5f657c0f5842192c9009d22729ac6_8
5d5f2b5546d2 5050e13516e9 "docker-entrypoint.s…" 6 days ago Exited (0) 6 days ago agitated_gould
5d3285d40f45 hub.17usoft.com/gsairgroup/tool-portal:1.0.6 "docker-entrypoint.s…" 8 days ago Exited (1) 8 days ago bold_euler
75286c1d32b5 hub.17usoft.com/gsairgroup/tool-portal:1.0.6 "docker-entrypoint.s…" 8 days ago Exited (1) 8 days ago suspicious_snyder
34819d1e5f69 hub.17usoft.com/gsairgroup/tool-portal:test-e939b0e "docker-entrypoint.s…" 8 days ago Exited (137) 8 days ago unruffled_bassi
fa77bbde1466 cf2878b32b89 "docker-entrypoint.s…" 8 days ago Exited (0) 8 days ago determined_shirley
682c367eda49 hub.17usoft.com/gsairgroup/tool-portal:1.0.2 "docker-entrypoint.s…" 8 days ago Created unruffled_chebyshev
d43144967e97 hub.17usoft.com/gsairgroup/tool-portal:1.0.2 "docker-entrypoint.s…" 8 days ago Exited (130) 8 days ago unruffled_payne
ea58d1440961 d8622748a44d "/bin/sh" 8 days ago Exited (130) 8 days ago silly_easley
11811752dd5f d8622748a44d "/bin/sh" 8 days ago Exited (127) 8 days ago cranky_wilbur
6a762a1966ae c48fc7daaf38 "docker-entrypoint.s…" 8 days ago Exited (137) 8 days ago naughty_ptolemy
c6b1ebecc093 hub.17usoft.com/triggers/travelsky-auto:test-1b88a131 "/sbin/tini -- /app/…" 3 weeks ago Exited (0) 10 days ago hopeful_fermat
10320cbdb9ff hub.17usoft.com/gsairgroup/travelsky-auto:test-1ee9d797 "/sbin/tini -- /bin/…" 3 weeks ago Exited (137) 10 days ago angry_mendeleev
583801d99427 hub.17usoft.com/triggers/travelsky-auto:test-1b88a131 "/sbin/tini -- /app/…" 4 weeks ago Exited (0) 4 weeks ago goofy_lichterman
5b1519e23361 hub.17usoft.com/gsairgroup/travelsky-auto:test-1ee9d797 "/sbin/tini -- /app/…" 4 weeks ago Exited (0) 4 weeks ago elastic_shannon
54a2883570bd hub.17usoft.com/gsairgroup/chrome-headless:134-tini-alpine3.16 "/sbin/tini --" 4 weeks ago Exited (1) 4 weeks ago clever_bassi
[root@k8s-master overlay2]# docker rm $(docker ps -a -q) 
