（一）Docker安装与使用
参考：
1. docker安装
@ld-pc:~$ uname -a
Linux ld-pc 4.13.0-39-generic #44~16.04.1-Ubuntu SMP Thu Apr 5 16:43:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
参考:
- ubuntu 16.04 安装最新的 docker
- 安装docker出现Depends: libseccomp2 (>= 2.3.0) but 2.2.3-3ubuntu3 is to be installed
2. docker服务启动
systemctl start docker
3. docker pull ubuntu
运行
docker run -it ubuntu bash
查看系统版本
cat /etc/os-release
停止容器
docker container stop redis
docker stop httpd
4. commit定制镜像
docker run --name redis -d -p 1234:1234 redis:latest
docker container ls
docker exec -it redis bash
docker diff redis
docker commit --author "yvhqbat" --message "mkdir ld" redis redis:v2
docker run -it redis:v2 bash
docker history redis:v2
5. Dockerfile
6. docker container prune
[root@localhost docker]# docker container ls
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7afd18cf46b8 registry "/entrypoint.sh /e..." 23 hours ago Up 23 hours 0.0.0.0:5000->5000/tcp registry
[root@localhost docker]# docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7de7af264a3f ubuntu:v1 "bash" About a minute ago Exited (0) 24 seconds ago sleepy_franklin
066f4d6839d8 ubuntu "/bin/bash" 4 minutes ago Exited (0) 3 minutes ago relaxed_liskov
99b075b89e01 ubuntu "/bin/bash" 7 minutes ago Exited (0) 5 minutes ago quirky_northcutt
5e75b82eaa03 httpd:my "bash" 44 minutes ago Exited (0) 8 minutes ago heuristic_bose
9a9e0d4d8d5b httpd:my "httpd-foreground" 44 minutes ago Exited (0) 44 minutes ago ecstatic_austin
7367ecbbc71c httpd "httpd-foreground" 58 minutes ago Exited (0) 54 minutes ago httpd
2546b0337227 redis:latest "docker-entrypoint..." About an hour ago Exited (0) About an hour ago redis
2b6ed6a380a0 ubuntu:latest "/bin/bash" About an hour ago Exited (0) About an hour ago agitated_mirzakhani
a9449d7edb28 ubuntu:latest "-d" About an hour ago Created wizardly_volhard
0a1c1523c6dd ubuntu:latest "bash" About an hour ago Exited (0) About an hour ago priceless_tesla
7afd18cf46b8 registry "/entrypoint.sh /e..." 23 hours ago Up 23 hours 0.0.0.0:5000->5000/tcp registry
8220a188b7f2 ubuntu "/bin/echo 'hello ..." 23 hours ago Exited (0) 23 hours ago blissful_panini
4a57565d7375 ubuntu "bash" 47 hours ago Exited (0) 32 hours ago elated_pasteur
599630fcf41d ubuntu "/bin/bash" 47 hours ago Exited (0) 47 hours ago gracious_brahmagupta
ad59d83cee87 ubuntu "/bin/bash" 47 hours ago Exited (0) 47 hours ago objective_raman
[root@localhost docker]# docker container prune
WARNING! This will remove all stopped containers.
Are you sure you want to continue? [y/N] y
Deleted Containers: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 reclaimed space: 640 B
[root@localhost docker]# docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7afd18cf46b8 registry "/entrypoint.sh /e..." 23 hours ago Up 23 hours 0.0.0.0:5000->5000/tcp registry
[root@localhost docker]#
7. 查看容易操作日志
docker logs -f ubuntu
8. docker inspect 查看所有变量
[root@localhost]# docker inspect ubuntu
[
{
"Id": "acee95e509e9c95ea5eb77599e03b674a94ab20bc0d9a33101857fc125545373",
"Created": "2018-07-14T18:11:56.187157022Z",
"Path": "/bin/bash",
"Args": [],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 4480,
"ExitCode": 0,
"Error": "",
"StartedAt": "2018-07-14T18:11:56.368810149Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:113a43faa1382a7404681f1b9af2f0d70b182c569aab71db497e33fa59ed87e6",
"ResolvConfPath": "/var/lib/docker/containers/acee95e509e9c95ea5eb77599e03b674a94ab20bc0d9a33101857fc125545373/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/acee95e509e9c95ea5eb77599e03b674a94ab20bc0d9a33101857fc125545373/hostname",
"HostsPath": "/var/lib/docker/containers/acee95e509e9c95ea5eb77599e03b674a94ab20bc0d9a33101857fc125545373/hosts",
"LogPath": "/var/lib/docker/containers/acee95e509e9c95ea5eb77599e03b674a94ab20bc0d9a33101857fc125545373/acee95e509e9c95ea5eb77599e03b674a94ab20bc0d9a33101857fc125545373-json.log",
"Name": "/ubuntu",
"RestartCount": 0,
"Driver": "overlay",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": [
"my_volume:/home/liudong"
],
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "",
"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": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DiskQuota": 0,
"KernelMemory": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": -1,
"OomKillDisable": false,
"PidsLimit": 0,
"Ulimits": null,
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0
},
"GraphDriver": {
"Name": "overlay",
"Data": {
"LowerDir": "/var/lib/docker/overlay/0f8fa7e8637e05c6094587fda3d786e0e0c26d9f530560d439bfaf41b17302b1/root",
"MergedDir": "/var/lib/docker/overlay/c4cd806abb1f1d16dc5029285a5b648d99062c870b5f5f4092643d01a25d0bde/merged",
"UpperDir": "/var/lib/docker/overlay/c4cd806abb1f1d16dc5029285a5b648d99062c870b5f5f4092643d01a25d0bde/upper",
"WorkDir": "/var/lib/docker/overlay/c4cd806abb1f1d16dc5029285a5b648d99062c870b5f5f4092643d01a25d0bde/work"
}
},
"Mounts": [
{
"Type": "volume",
"Name": "my_volume",
"Source": "/var/lib/docker/volumes/my_volume/_data",
"Destination": "/home/liudong",
"Driver": "local",
"Mode": "z",
"RW": true,
"Propagation": ""
}
],
"Config": {
"Hostname": "acee95e509e9",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": true,
"OpenStdin": true,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"/bin/bash"
],
"ArgsEscaped": true,
"Image": "ubuntu:latest",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": {}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "6542e10d91e379b81fc2a79c059b77151d96a7ec4c745a84f62bf5e9a73c3f02",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {},
"SandboxKey": "/var/run/docker/netns/6542e10d91e3",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "2a0cc7ac632aec52aaf5227fdd2de27fd995467783e31466003c6240593f84bb",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:03",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "b260ea9e5346e40ced1bc6e19cd61bb11a4f4defa4e4ddf7a2e736f76e154b6e",
"EndpointID": "2a0cc7ac632aec52aaf5227fdd2de27fd995467783e31466003c6240593f84bb",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:03"
}
}
}
}
]
9. 端口映射
9.1 docker port 查看映射端口配置
[root@localhost]# docker port registry 5000
0.0.0.0:5000
10. docker redis
参考：
[root@localhost _data]# docker run -p 6379:6379 -v $PWD/data:/data -d redis:latest redis-server
3cf7b0de4572a671e9b8206f0131ba683bc7f427439e376594025d1241852645
[root@localhost _data]# ls
data test.txt
[root@localhost _data]# cd data
[root@localhost data]# ls
[root@localhost data]# cd ..
[root@localhost _data]# ls
data test.txt
[root@localhost _data]# cd data
[root@localhost data]# ls
[root@localhost data]# docker exec -it 3cf7b0de4572a671e9b8206 redis-cli
127.0.0.1:6379> keys *
(empty list or set)
127.0.0.1:6379> set name "dog"
OK
127.0.0.1:6379> get name
"dog"
127.0.0.1:6379> keys *
1) "name"
127.0.0.1:6379> ls
(error) ERR unknown command 'ls'
127.0.0.1:6379>
