docker image 제거

docker images 커맨드로 다음과 같이 image list를 볼 수 있음

[root@kw1 ~]# docker images
REPOSITORY                         TAG       IMAGE ID       CREATED        SIZE
harbor.ks.io/ksflask               v1        59db0b82b797   9 hours ago    913MB
harbor.ks.io/privatetest/ksflask   v1        59db0b82b797   9 hours ago    913MB
python                             3.9       40264b427ab5   39 hours ago   914MB
k8s.gcr.io/kube-proxy              v1.23.5   3c53fa8541f9   9 days ago     112MB
calico/cni                         v3.22.1   2a8ef6985a3e   3 weeks ago    236MB
calico/pod2daemon-flexvol          v3.22.1   17300d20daf9   3 weeks ago    19.7MB
calico/node                        v3.22.1   7a71aca7b60f   3 weeks ago    198MB
python                             3.6       54260638d07c   3 months ago   902MB
kubernetesui/dashboard             v2.4.0    72f07539ffb5   5 months ago   221MB
centos                             centos7   eeb6ee3f44bd   6 months ago   204MB
centos                             latest    5d0da3dc9764   6 months ago   231MB
k8s.gcr.io/pause                   3.6       6270bb605e12   7 months ago   683kB
kubernetesui/metrics-scraper       v1.0.7    7801cfc6d5c0   9 months ago   34.4MB

 

`docker rmi 이미지명:태그` 커맨드 혹은 `docker rmi 이미지ID` 커맨드로 이미지를 제거할 수 있음

 

그런데 이미지 지우려는 데 다음과 같은 에러가 발생함

[root@kw1 flaskImage]# docker rmi edd4429bca17
Error response from daemon: conflict: unable to delete edd4429bca17 (must be forced) - image is being used by stopped container 605e1fe0a9bd

605e1fe0a9bd 이 컨테이너에서 이미지를 쓰고 있다고 못 지운다고 함

확인해봄

[root@kw1 flaskImage]# docker container ls -a
CONTAINER ID   IMAGE                       COMMAND                  CREATED          STATUS                       PORTS     NAMES
e37f9b439f7b   harbor.ks.io/ksflask:v1     "/bin/sh -c '['pytho…"   2 minutes ago    Exited (127) 2 minutes ago             fervent_wilson
605e1fe0a9bd   harbor.ks.io/ksflask:v1     "/bin/sh -c '['pytho…"   5 minutes ago    Exited (127) 5 minutes ago             xenodochial_turing
10fc9d5ff29d   harbor.ks.io/ksflask:v1     "/bin/sh -c '['pytho…"   5 minutes ago    Exited (127) 5 minutes ago             hungry_wu
7f66e4e15a7e   273a1c99e291                "/bin/sh -c 'yum ins…"   23 minutes ago   Exited (1) 23 minutes ago              strange_agnesi
2d19a00b8ab3   4517d736632a                "/bin/sh -c 'yum ins…"   27 minutes ago   Exited (1) 27 minutes ago              ecstatic_leakey
ede37c3bf9f7   kubernetesui/dashboard      "/dashboard --insecu…"   5 days ago       Up 5 days                              k8s_kubernetes-dashboard_kubernetes-dashboard-6857959dd6-h5lm4_kubernetes-dashboard_30be962f-e090-4374-bbc1-a7a492ca83a4_0
bdf9a1143491   k8s.gcr.io/pause:3.6        "/pause"                 5 days ago       Up 5 days                              k8s_POD_kubernetes-dashboard-6857959dd6-h5lm4_kubernetes-dashboard_30be962f-e090-4374-bbc1-a7a492ca83a4_0
2d7befea386e   7801cfc6d5c0                "/metrics-sidecar"       5 days ago       Up 5 days                              k8s_dashboard-metrics-scraper_dashboard-metrics-scraper-799d786dbf-4tm9r_kubernetes-dashboard_586bf9d2-92c1-4c5d-bd0f-30d4e5233501_0
8e52b32784e5   k8s.gcr.io/pause:3.6        "/pause"                 5 days ago       Up 5 days                              k8s_POD_dashboard-metrics-scraper-799d786dbf-4tm9r_kubernetes-dashboard_586bf9d2-92c1-4c5d-bd0f-30d4e5233501_0
2bac828bdacd   calico/node                 "start_runit"            6 days ago       Up 6 days                              k8s_calico-node_calico-node-vpzhx_calico-system_61606a50-22da-4c22-b6a9-c2c30474782f_0
b55e48b02629   calico/cni                  "/opt/cni/bin/install"   6 days ago       Exited (0) 6 days ago                  k8s_install-cni_calico-node-vpzhx_calico-system_61606a50-22da-4c22-b6a9-c2c30474782f_0
0a9935d65673   calico/pod2daemon-flexvol   "/usr/local/bin/flex…"   6 days ago       Exited (0) 6 days ago                  k8s_flexvol-driver_calico-node-vpzhx_calico-system_61606a50-22da-4c22-b6a9-c2c30474782f_0
90889b808814   k8s.gcr.io/kube-proxy       "/usr/local/bin/kube…"   6 days ago       Up 6 days                              k8s_kube-proxy_kube-proxy-sq298_kube-system_fc972596-775f-40a3-887f-e93a9402536e_0
24923d9cf1ea   k8s.gcr.io/pause:3.6        "/pause"                 6 days ago       Up 6 days                              k8s_POD_calico-node-vpzhx_calico-system_61606a50-22da-4c22-b6a9-c2c30474782f_0
b23a24b8465d   k8s.gcr.io/pause:3.6        "/pause"                 6 days ago       Up 6 days                              k8s_POD_kube-proxy-sq298_kube-system_fc972596-775f-40a3-887f-e93a9402536e_0

보니까 harbor.ks.io/ksflask:v1를 쓰는 docker container가 3개인데 전부 exited status임

`docker container rm container-id` 커맨드로 전부 지워줌

[root@kw1 flaskImage]# docker container rm e37f9b439f7b

컨테이너를 제거한 후 이미지를 다시 지우니까 잘 지워짐

[root@kw1 flaskImage]# docker rmi edd4429bca17
Untagged: harbor.ks.io/ksflask:v1
Deleted: sha256:edd4429bca17887f32341eb79c3e48713dfe9f96dff03aab779a2789964f97bb
Deleted: sha256:0944de18863e7eaf55de0441c5dabb186e7f32b8d3f646cb83bfed22e9012831
Deleted: sha256:0884e7a54b2e1bda57ff6b78979d67b63778ee56750ccae9c3ba5e6a7c3be7c9
Deleted: sha256:526848e44ae4195f0d6a8ce0aa9115dce98c69d4cc8b07d3bd73fb248c7c7fa1
Deleted: sha256:79043057b693c72672a109589af82a762a277a534236fb8aa30f7bb0c422f4b4
Deleted: sha256:8f1b408800e480c67152dabbf799733644c44da14f6732ee1b60f20371051a0d
Deleted: sha256:a1ea38c39f53b3104793124f2afa6983ca897bbd531363b720f5e7cd3d9d7eb7
Deleted: sha256:f7c42d642e0020f064f07cdef63b00c0d7691b765bd64f837faa7eaf105660e5
Deleted: sha256:ed9fb3ece5c804fa6aa2186aa884f873d2f53491d042b89170067f6dad01b6a9