docker镜像管理
# 一、docker镜像管理### 1.1、镜像搜索-search
```
从docker镜像仓库模糊搜索镜像
用法：
docker search 镜像关键字
# docker search centos
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
centos The official build of CentOS. 5674
#字段说明：
NAME:镜像名称
DESCRIPTION:镜像描述
STARS：镜像星级，数字越大表示用的人越多
OFFICIAL:是否为官方跟说明是官方
AUTOMATED: 是否为自动化构建的镜像
```
### 1.2、镜像下载-pull命令
从docker指定的仓库下载镜像到本地用法:**docker pull 镜像名称**```# docker pull centosUsing default tag: latestlatest: Pulling from library/centos729ec3a6ada3: Pull complete Digest: sha256:f94c1d992c193b3dc09e297ffd54d8a4f1dc946c37cbeceb26d35ce1647f88d9Status: Downloaded newer image for centos:latestdocker.io/library/centos:latest```### 1.3、本地镜像查看-images命令查看本地存储的镜像```# docker imagesREPOSITORY TAG IMAGE ID CREATED SIZEdocker.io/gitlab/gitlab-ce latest 515ad1a75677 7 weeks ago 1.9 GBdocker.io/redis latest 1319b1eaa0b7 7 weeks ago 104 MB#字段说明：REPOSITORY:镜像的名字TAG：镜像的标签IMAGE ID：镜像的ID号CREATED：镜像建立时间SIZE: 镜像大小```### 1.4、镜像详细信息-inspect命令显示镜像的详细导入由save保存出来的压缩文件镜像用法:**docker load -i 镜像压缩文件名称 [镜像名称或者ID]**```# docker load -i centos_base.tar Loaded image: centos:latest信息用法:docker inspect [镜像名称或者ID]# docker inspect 0f3e07c0138f [ { "Id": "sha256:0f3e07c0138fbe05abcb7a9cc7d63d9bd4c980c3f61fea5efa32e7c4217ef4da", "RepoTags": [ "centos:latest" ], "RepoDigests": [ "centos@sha256:f94c1d992c193b3dc09e297ffd54d8a4f1dc946c37cbeceb26d35ce1647f88d9" ], "Parent": "", "Comment": "", "Created": "2019-10-01T23:19:57.105928163Z", "Container": "711572e3c0c1ac06d5c13c4e668ec170b8ad8786b5f0949f884a5f7fd350d856", "ContainerConfig": { "Hostname": "711572e3c0c1", "Domainname": "", "User": "", "AttachStdin": false, "AttachStdout": false, "AttachStderr": false, "Tty": false, "OpenStdin": false, "StdinOnce": false, "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" ], "Cmd": [ "/bin/sh", "-c", "#(nop) ", "CMD [\"/bin/bash\"]" ], "ArgsEscaped": true, "Image": "sha256:c0bda62fdbad65a3c6a1843d293a3a47d8233115cc6d384e3cb07c53580a2b43", "Volumes": null, "WorkingDir": "", "Entrypoint": null, "OnBuild": null, "Labels": { "org.label-schema.build-date": "20190927", "org.label-schema.license": "GPLv2", "org.label-schema.name": "CentOS Base Image", "org.label-schema.schema-version": "1.0", "org.label-schema.vendor": "CentOS" } }, "DockerVersion": "18.06.1-ce", "Author": "", "Config": { "Hostname": "", "Domainname": "", "User": "", "AttachStdin": false, "AttachStdout": false, "AttachStderr": false, "Tty": false, "OpenStdin": false, "StdinOnce": false, "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" ], "Cmd": [ "/bin/bash" ], "ArgsEscaped": true, "Image": "sha256:c0bda62fdbad65a3c6a1843d293a3a47d8233115cc6d384e3cb07c53580a2b43", "Volumes": null, "WorkingDir": "", "Entrypoint": null, "OnBuild": null, "Labels": { "org.label-schema.build-date": "20190927", "org.label-schema.license": "GPLv2", "org.label-schema.name": "CentOS Base Image", "org.label-schema.schema-version": "1.0", "org.label-schema.vendor": "CentOS" } }, "Architecture": "amd64", "Os": "linux", "Size": 219583055, "VirtualSize": 219583055, "GraphDriver": { "Data": { "MergedDir": "/var/lib/docker/overlay2/e84fb0b30e3f1cd4a40d2ee6ed522736aedad13fcfce3571075ebbbd665aab4a/merged", "UpperDir": "/var/lib/docker/overlay2/e84fb0b30e3f1cd4a40d2ee6ed522736aedad13fcfce3571075ebbbd665aab4a/diff", "WorkDir": "/var/lib/docker/overlay2/e84fb0b30e3f1cd4a40d2ee6ed522736aedad13fcfce3571075ebbbd665aab4a/work" }, "Name": "overlay2" }, "RootFS": { "Type": "layers", "Layers": [ "sha256:9e607bb861a7d58bece26dd2c02874beedd6a097c1b6eca5255d5eb0d2236983" ] }, "Metadata": { "LastTagTime": "0001-01-01T00:00:00Z" } }]```### 1.5、本地镜像删除-rmi命令删除本地镜像库中的某个镜像用法:**docker rmi [镜像名称或者ID]**```# docker rmi centosUntagged: centos:latestUntagged: centos@sha256:f94c1d992c193b3dc09e297ffd54d8a4f1dc946c37cbeceb26d35ce1647f88d9Deleted: sha256:0f3e07c0138fbe05abcb7a9cc7d63d9bd4c980c3f61fea5efa32e7c4217ef4daDeleted: sha256:9e607bb861a7d58bece26dd2c02874beedd6a097c1b6eca5255d5eb0d2236983```### 1.6、镜像保存-save命令保存镜像为压缩文件用法:**docker save -o 压缩文件名称 [镜像名称或者ID]**```# docker save -o centos_base.tar centos# lsanaconda-ks.cfgcentos_base.tar```### 1.7、镜像载入-load命令导入由save保存出来的压缩文件镜像用法:**docker load -i 镜像压缩文件名称 [镜像名称或者ID]**```# docker load -i centos_base.tar Loaded image: centos:latest```### 1.8、镜像管理命令-image命令镜像管理命令，和上面的命令相似```# docker image --helpUsage: docker image COMMANDManage imagesCommands:build Build an image from a Dockerfilehistory Show the history of an imageimport Import the contents from a tarball to create a filesystem imageinspect Display detailed information on one or more imagesload Load an image from a tar archive or STDINls List imagesprune Remove unused imagespull Pull an image or a repository from a registrypush Push an image or a repository to a registryrm Remove one or more imagessave Save one or more images to a tar archive (streamed to STDOUT by default)tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE```
我相信群众的革命意识最终会将革命之火带回。
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