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[root@VM-8-14-centos docker]# docker images
# 解释
REPOSITORY TAG IMAGE ID CREATED SIZE
hello-world latest d1165f221234 5 months ago 13.3kB
REPOSITORY 镜像的仓库源
TAG 镜像的标签
IMAGE ID 镜像的id
CREATED 镜像的创建时间
SIZE 镜像的大小
# 可选项
-a, --all #列出所有的命令
-q，--quiet #只显示id
[root@VM-8-14-centos docker]# docker search mysql
NAME DESCRIPTION STARS
mysql MySQL is a widely used, open-source relation… 11294
mariadb MariaDB Server is a high performing open sou… 4289
mysql/mysql-server Optimized MySQL Server Docker images. Create… 837
#可选项 通过收藏来过滤
--filter=STARS=3000 搜索出来的镜像就是STARS数量大于3000的
[root@VM-8-14-centos docker]# docker pull mysql
Using default tag: latest #没写tag的话，默认是使用最新版本latest
latest: Pulling from library/mysql
e1acddbe380c: Pulling fs layer #分层下载，docker的核心，联合文件系统
bed879327370: Pulling fs layer
03285f80bafd: Pulling fs layer
ccc17412a00a: Pull complete
1f556ecc09d1: Pull complete
adc5528e468d: Pull complete
1afc286d5d53: Pull complete
6c724a59adff: Pull complete
0f2345f8b0a3: Pull complete
c8461a25b23b: Pull complete
3adb49279bed: Pull complete
77f22cd6c363: Pull complete
Digest: sha256:d45561a65aba6edac77be36e0a53f0c1fba67b951cb728348522b671ad63f926 #签名
Status: Downloaded newer image for mysql:latest
docker.io/library/mysql:latest #真实地址
#docker pull mysql 等价于 docker pull docker.io/library/mysql:latest
#指定版本下载
[root@VM-8-14-centos docker]# docker pull mysql:5.7
5.7: Pulling from library/mysql
e1acddbe380c: Already exists #已经有了的就不会进行下载
bed879327370: Already exists #这样更节省内存
03285f80bafd: Already exists
ccc17412a00a: Already exists
1f556ecc09d1: Already exists
adc5528e468d: Already exists
1afc286d5d53: Already exists
4d2d9261e3ad: Pull complete #只下载了四个层级
ac609d7b31f8: Pull complete
53ee1339bc3a: Pull complete
b0c0a831a707: Pull complete
Digest: sha256:7cf2e7d7ff876f93c8601406a5aa17484e6623875e64e7acc71432ad8e0a3d7e
Status: Downloaded newer image for mysql:5.7
docker.io/library/mysql:5.7
#通过id删除一个镜像，也可以通过名字删除
[root@VM-8-14-centos docker]# docker rmi -f 6c20ffa54f86
Untagged: mysql:5.7
Untagged: mysql@sha256:7cf2e7d7ff876f93c8601406a5aa17484e6623875e64e7acc71432ad8e0a3d7e
Deleted: sha256:6c20ffa54f8674203e91e3225e489aa505fa04b8d482954a8b6d7414842c6de4
Deleted: sha256:7ecf077dd9d6725f0e594b9cd5eb214ad1b3764fa75bf5940ab08b05b8bae184
Deleted: sha256:c28edab85681de37f9d2a75dde941a20d2e1ac6e4efb7dee391913d3ec722fef
Deleted: sha256:6c11b187da1ecb65ce10b25f54354f3515ce9d26fabcd859cdb43dbd625df907
Deleted: sha256:d0dfc5be0883ed4af9f642a8e4f2312a93c4241ec8e89f22219b0f0a0d26c8d3
#删除所有的docker镜像
[root@VM-8-14-centos docker]# docker rmi -f $(docker images -aq)
Untagged: mysql:latest
Untagged: mysql@sha256:d45561a65aba6edac77be36e0a53f0c1fba67b951cb728348522b671ad63f926
Deleted: sha256:5a4e492065c722ec8cc7413552bafc6fd5434c5ad90797e898ccc4e347e21aa5
Deleted: sha256:816bf92c28337cd97393cb1fab7697398c9b657baa8e80ad394e1193bdd7c323
Deleted: sha256:4d9cad11f64589b397b1033d6f14cea1794efbee0a9923932fb3394a67cb9812
Deleted: sha256:d8cc28a31b469770ffe2239a29aaef8745fedc4df3c545b1615ba864796709a3
Deleted: sha256:c65a377e07f1205f3c28f7067d2ac4da3a65fbe7c1b4606b48028db3818d2f4c
Deleted: sha256:7dcd840f1d4be1a565f470453489932a17c62ed36b959d7839f004606ba22f0b
Deleted: sha256:1438a7497295aed687ea1875073a1f9faa6a308f787767b952da4a1a21e2c2c6
Deleted: sha256:c728863b4742db55b9630b0129abac718c8c9704e5ed86e8af93dfb47a0f6214
Deleted: sha256:0f12df3ff796b6fb619c63bf2f78f16d1033746e19f75ffc2d8d72ea69242ad4
Deleted: sha256:3072318e40ebff019298a59290e615ad6170a651f3121c0e356dcf3dd7426136
Deleted: sha256:a69e3133dd3c0a81bd439120abb8f98e43c1581629896725b968db906c8fdfac
Deleted: sha256:6d9498fd63c38c4b0b9bbc563087b4bc164b2fb5211832a8d43c60a9692a7f84
Deleted: sha256:f68ef921efae588b3dd5cc466a1ca9c94c24785f1fa9420bea15ecc2dedbe781
Untagged: hello-world:latest
Untagged: hello-world@sha256:0fe98d7debd9049c50b597ef1f85b7c1e8cc81f59c8d623fcb2250e8bec85b38
Deleted: sha256:d1165f2212346b2bab48cb01c1e39ee8ad1be46b87873d9ca7a4e434980a7726
#查看剩余的docker镜像
[root@VM-8-14-centos docker]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
说明：我们有了镜像才可以创建容器，linux，下载一个centos镜像来测试学习
docker pull centos
docker run [可选参数] image
#参数说明
--name="Name" 容器名字 tomcat1 tomcat2 用于区分容器
-d 后台方式运行
-it 使用交互方式运行，进入容器查看内容
-p 指定容器的端口 -p 8080:8080
-p ip:主机端口：容器端口
-p 主机端口：容器端口（常用）
-p 容器端口
容器端口
#测试 启动并进入容器
[root@VM-8-14-centos docker]# docker run -it centos /bin/bash
[root@ac71b5898083 /]#
[root@ac71b5898083 /]# ls #查看容器内的centos，基础版本，很多命令都不完善
bin dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var
#退出容器命令
[root@9af1a7b253ec /]# exit
exit
[root@VM-8-14-centos /]#
#docker ps 命令
#列出当前正在运行的容器
-a #列出当前正在运行的容器+历史运行过的容器
-n=? #显示最近创建的容器
-q #只显示容器的编号
[root@VM-8-14-centos /]# docker ps #运行的容器
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@VM-8-14-centos /]# docker ps -a #运行过的容器
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9af1a7b253ec centos "/bin/bash" About a minute ago Exited (0) About a minute ago happy_nash
ac71b5898083 centos "/bin/bash" 3 minutes ago Exited (0) 2 minutes ago sleepy_sutherland
e1c59d0e993b d1165f221234 "/hello" 24 hours ago Exited (0) 24 hours ago quizzical_albattani
[root@VM-8-14-centos /]#
exit #容器直接停止退出
Ctrl+P+Q #不停止退出
docker rm 容器id #删除指定的容器，不能删除正在运行的容器，如果要强制删除就rm -f
docker rm -f $(docker ps -aq) #删除所有的容器
docker ps -a -q|xargs docker rm #删除所有的容器
docker start 容器id #启动容器
docker restart 容器id #重启容器
docker stop 容器id #停止当前正在运行的容器
docker kill 容器id #强制停止当前容器
#命令docker run -d 镜像名！
[root@VM-8-14-centos /]# docker run -d centos
#问题 docker ps 发现centos 停止了
#docker容器使用后台运行，就必须要有一个前台进程，否则docker发现没有应用，就会自动停止
#例如nginx，容器启动后，发现自己没有提供服务，就会立即停止，就是没有程序了
[root@VM-8-14-centos /]# docker run -d centos /bin/bash -c "while true;do echo fanxu;sleep 1;done"
88e36a8819f26f5d12a8fd658adfbb97ed60901a71a8d878a0d8174b98b72dd7
[root@VM-8-14-centos /]# docker logs -tf --tail 10 88e36a8819f2
2021-08-18T14:17:58.098503211Z fanxu
2021-08-18T14:17:59.100849355Z fanxu
2021-08-18T14:18:00.103158743Z fanxu
2021-08-18T14:18:01.105462026Z fanxu
2021-08-18T14:18:02.107828632Z fanxu
[root@VM-8-14-centos /]# docker top 81d323846d11
UID PID PPID C STIME TTY TIME CMD
root 20586 20568 0 22:20 pts/0 00:00:00 /bin/bash
#命令
docker inspect 容器id
[root@VM-8-14-centos /]# docker inspect 81d323846d11
[
{
"Id": "81d323846d11ab383afd98a34aef5feff5fd2646865a0023e04be4967e712c02",
"Created": "2021-08-18T14:20:55.98150614Z",
"Path": "/bin/bash",
"Args": [],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 21525,
"ExitCode": 0,
"Error": "",
"StartedAt": "2021-08-18T14:24:47.97344561Z",
"FinishedAt": "2021-08-18T14:21:26.415512597Z"
},
"Image": "sha256:300e315adb2f96afe5f0b2780b87f28ae95231fe3bdd1e16b9ba606307728f55",
"ResolvConfPath": "/var/lib/docker/containers/81d323846d11ab383afd98a34aef5feff5fd2646865a0023e04be4967e712c02/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/81d323846d11ab383afd98a34aef5feff5fd2646865a0023e04be4967e712c02/hostname",
"HostsPath": "/var/lib/docker/containers/81d323846d11ab383afd98a34aef5feff5fd2646865a0023e04be4967e712c02/hosts",
"LogPath": "/var/lib/docker/containers/81d323846d11ab383afd98a34aef5feff5fd2646865a0023e04be4967e712c02/81d323846d11ab383afd98a34aef5feff5fd2646865a0023e04be4967e712c02-json.log",
"Name": "/sad_dewdney",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"CgroupnsMode": "host",
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "private",
"Cgroup": "",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": null,
"UTSMode": "",
"UsernsMode": "",
"ShmSize": 67108864,
"Runtime": "runc",
"ConsoleSize": [
0,
0
],
"Isolation": "",
"CpuShares": 0,
"Memory": 0,
"NanoCpus": 0,
"CgroupParent": "",
"BlkioWeight": 0,
"BlkioWeightDevice": [],
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DeviceCgroupRules": null,
"DeviceRequests": null,
"KernelMemory": 0,
"KernelMemoryTCP": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": null,
"Ulimits": null,
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0,
"MaskedPaths": [
"/proc/asound",
"/proc/acpi"
