rmi删除镜像

1 # 格式：docker rmi |2 [root@docker01 docker_test]# docker images3 REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE4 centos              latest              470671670cac        2 months ago        237MB5 [root@docker01 docker_test]# docker rmi 470671670cac  # 删除镜像 6 [root@docker01 docker_test]# docker images7 REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

load导入镜像

1 # 格式：docker load -i 2 [root@docker01 docker_test]# docker load -i centos_docker_20200413.tar3 [root@docker01 docker_test]# docker images 4 REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE5 centos              latest              470671670cac        2 months ago        237MB

tag标签

1 # 格式：docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]2 [root@docker01 docker_test]# docker images 3 REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE4 centos              latest              470671670cac        2 months ago        237MB 5 [root@docker01 docker_test]# docker tag centos:latest centos:202004136 [root@docker01 docker_test]# docker images 7 REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE8 centos              20200413            470671670cac        2 months ago        237MB9 centos              latest              470671670cac        2 months ago        237MB

使用：根据需要给docker镜像打一个新标签。

info显示整个系统的信息

 1 [root@docker01 ~]# docker info  2 Containers: 0 3  Running: 0 4  Paused: 0 5  Stopped: 0 6 Images: 1 7 Server Version: 18.06.3-ce 8 Storage Driver: overlay2 9  Backing Filesystem: xfs10  Supports d_type: true11  Native Overlay Diff: true12 Logging Driver: json-file13 Cgroup Driver: cgroupfs14 Plugins:15  Volume: local16  Network: bridge host macvlan null overlay17  Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog18 Swarm: inactive19 Runtimes: runc20 Default Runtime: runc21 Init Binary: docker-init22 containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e23 runc version: a592beb5bc4c4092b1b1bac971afed27687340c524 init version: fec368325 Security Options:26  seccomp27   Profile: default28 Kernel Version: 3.10.0-1062.el7.x86_6429 Operating System: CentOS Linux 7 (Core)30 OSType: linux31 Architecture: x86_6432 CPUs: 233 Total Memory: 1.777GiB34 Name: docker0135 ID: XIHU:XNWU:II7A:YXUH:BOZ3:JSGG:J3P2:CU2Z:5QHA:5Y64:PZ4V:62DI36 Docker Root Dir: /var/lib/docker37 Debug Mode (client): false38 Debug Mode (server): false39 Registry: https://index.docker.io/v1/40 Labels:41 Experimental: false42 Insecure Registries:43  127.0.0.0/844 Registry Mirrors:45  https://hub-mirror.c.163.com/46 Live Restore Enabled: false47 48 WARNING: bridge-nf-call-iptables is disabled49 WARNING: bridge-nf-call-ip6tables is disabled

system镜像体积查看

另外一个需要注意的问题是，docker image ls 列表中的镜像体积总和并非是所有镜像实际硬盘消耗。由于 Docker 镜像是多层存储结构，并且可以继承、复用，因此不同镜像可能会因为使用相同的基础镜像，从而拥有共同的层。由于 Docker 使用 Union FS，相同的层只需要保存一份即可，因此实际镜像硬盘占用空间很可能要比这个列表镜像大小的总和要小的多。

可以通过以下命令来便捷的查看镜像、容器、数据卷所占用的空间。

共5页:

上一页

1

2

3

4

5

下一页