Docker深入浅出3-容器管理
docker客户端非常简单，我们可以直接输入docker命令来查看Docker客户端所有的命令项
[root@admin-fxr ~]# docker Usage: docker COMMAND A self-sufficient runtime for containers Options:
--config string Location of client config files (default "/root/.docker")
-D, --debug Enable debug mode
--help Print usage
-H, --host list Daemon socket(s) to connect to (default [])
-l, --log-level string Set the logging level ("debug", "info", "warn", "error", "fatal") (default "info")
--tls Use TLS; implied by --tlsverify
--tlscacert string Trust certs signed only by this CA (default "/root/.docker/ca.pem")
--tlscert string Path to TLS certificate file (default "/root/.docker/cert.pem")
--tlskey string Path to TLS key file (default "/root/.docker/key.pem")
--tlsverify Use TLS and verify the remote
-v, --version Print version information and quit Management Commands:
container Manage containers
image Manage images
network Manage networks
node Manage Swarm nodes
plugin Manage plugins
secret Manage Docker secrets
service Manage services
stack Manage Docker stacks
swarm Manage Swarm
system Manage Docker
volume Manage volumes Commands:
attach Attach to a running container
build Build an image from a Dockerfile
commit Create a new image from a container's changes
cp Copy files/folders between a container and the local filesystem
create Create a new container
diff Inspect changes on a container's filesystem
events Get real time events from the server
exec Run a command in a running container
export Export a container's filesystem as a tar archive
history Show the history of an image
images List images
import Import the contents from a tarball to create a filesystem image
info Display system-wide information
inspect Return low-level information on Docker objects
kill Kill one or more running containers
load Load an image from a tar archive or STDIN
login Log in to a Docker registry
logout Log out from a Docker registry
logs Fetch the logs of a container
pause Pause all processes within one or more containers
port List port mappings or a specific mapping for the container
ps List containers
pull Pull an image or a repository from a registry
push Push an image or a repository to a registry
rename Rename a container
restart Restart one or more containers
rm Remove one or more containers
rmi Remove one or more images
run Run a command in a new container
save Save one or more images to a tar archive (streamed to STDOUT by default)
search Search the Docker Hub for images
start Start one or more stopped containers
stats Display a live stream of container(s) resource usage statistics
stop Stop one or more running containers
tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
top Display the running processes of a container
unpause Unpause all processes within one or more containers
update Update configuration of one or more containers
version Show the Docker version information
wait Block until one or more containers stop, then print their exit codes Run 'docker COMMAND --help' for more information on a command.
可以通过命令docker command --help 更深入的了解指定的Docker命令使用方法。例如我们要查看docker status 指令的具体的使用方法
[root@admin-fxr ~]# docker stats --help Usage: docker stats [OPTIONS] [CONTAINER...] Display a live stream of container(s) resource usage statistics Options:
-a, --all Show all containers (default shows just running)
--format string Pretty-print images using a Go template
--help Print usage
--no-stream Disable streaming stats and only pull the first result
[root@admin-fxr ~]#
运行WEB容器：
前面我们运行的容器并没有一些什么特殊的用处
接下来我们尝试使用docker构建一个web应用程序。
我们将在docker容器中运行一个java小程序
docker run -d -P training/webapp python app.py
参数说明：
-d：让容器在后台运行
-P: 将容器内部使用的网络端口映射到我们使用的主机上
我们写的java程序打包成一个docker镜像，然后实例化一个容器，就直接可以访问。
查看WEB应用容器的进程
[root@admin-fxr ~]# docker top mysql02
UID PID PPID C STIME TTY TIME CMD
polkitd : ? :: mysqld
root : pts/ :: /bin/bash
root : pts/ :: mysql -uroot -px xxxx
root : ? :: /bin/bash
root : pts/ :: /bin/bash
[root@admin-fxr ~]#
查看web应用程序：使用docker inspect 来查看Docker的底层信息，它会返回一个JSON文件记录着Docker容器的配置和状态信息：
[root@admin-fxr ~]# docker inspect mysql02
[
{
"Id": "bb8c5376040e126df96ceb7d9ffb254804a5e031366b0601ff820f2374eaba74",
"Created": "2018-06-11T02:02:01.869077886Z",
"Path": "docker-entrypoint.sh",
"Args": [
"mysqld"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": ,
"ExitCode": ,
"Error": "",
"StartedAt": "2018-06-11T02:02:02.177041787Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:a8a59477268d92f434d86a73b5ea6de9bf7b05d536359413e79da1feb31f87aa",
"ResolvConfPath": "/var/lib/docker/containers/bb8c5376040e126df96ceb7d9ffb254804a5e031366b0601ff820f2374eaba74/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/bb8c5376040e126df96ceb7d9ffb254804a5e031366b0601ff820f2374eaba74/hostname",
"HostsPath": "/var/lib/docker/containers/bb8c5376040e126df96ceb7d9ffb254804a5e031366b0601ff820f2374eaba74/hosts",
"LogPath": "",
"Name": "/mysql02",
"RestartCount": ,
"Driver": "overlay2",
"MountLabel": "system_u:object_r:svirt_sandbox_file_t:s0:c129,c382",
"ProcessLabel": "system_u:system_r:svirt_lxc_net_t:s0:c129,c382",
"AppArmorProfile": "",
"ExecIDs": [
"7e4eec98867d3b1f0fda4936b82c7e0ea7294f31146bf538516e44718e2caa14",
"336a9b700f39b4186804d46ff020684ecfdb8effa59aa051c99d63e7606c403e",
"05343506cbf1971a8d1c34d3d749a13830260633ceb9a7202aec4960dc038601"
],
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "journald",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"3306/tcp": [
{
"HostIp": "",
"HostPort": ""
}
]
},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount":
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "",
"Cgroup": "",
"Links": null,
"OomScoreAdj": ,
"PidMode": "",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": null,
"UTSMode": "",
"UsernsMode": "",
"ShmSize": ,
"Runtime": "docker-runc",
"ConsoleSize": [
, ],
"Isolation": "",
"CpuShares": ,
"Memory": ,
"NanoCpus": ,
"CgroupParent": "",
"BlkioWeight": ,
"BlkioWeightDevice": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": ,
"CpuQuota": ,
"CpuRealtimePeriod": ,
"CpuRealtimeRuntime": ,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DiskQuota": ,
"KernelMemory": ,
"MemoryReservation": ,
"MemorySwap": ,
"MemorySwappiness": -,
"OomKillDisable": false,
"PidsLimit": ,
"Ulimits": null,
"CpuCount": ,
"CpuPercent": ,
"IOMaximumIOps": ,
"IOMaximumBandwidth":
},
"GraphDriver": {
"Name": "overlay2",
"Data": {
"LowerDir": "/var/lib/docker/overlay2/7a82ad0c45a2abd460e6037ef7bb1c6424bc3bbdd3300ab0653144b3bf32607c-init/diff:/var/lib/docker/overlay2/812c628ee6a3d73b2e5625304e0cf1f5a65082870baaba31f6524ec456feb490/diff:/var/lib/docker/overlay2/91a5fbeb0c686ad843bf7730b1f773f9bd5e4f196f1f502502e082dd510ead27/diff:/var/lib/docker/overlay2/830daa3feafa22688bfb52dd81119d805ebab837ad3cedd7ac5f9d5f793783a1/diff:/var/lib/docker/overlay2/f56a48e5f09e646698d3dbdb689f08eba8dea2f49147934f67b143561918fea9/diff:/var/lib/docker/overlay2/c70b1ea7834fe8157049e8b3f3bf104b57a5c4ead0eb2dbc60149f72438e3ce9/diff:/var/lib/docker/overlay2/82a315246590c8462d5eb47edb56b6849e3c6cdc67b5c9082e0be3bfa34d1bd4/diff:/var/lib/docker/overlay2/74dfa5eaa2c884b217443ba87d7173a53bc287de3ea02e12b2944fd4676c282a/diff:/var/lib/docker/overlay2/707035914ce0c667e4aec7ddbd3e2dba3325d8c8f73344ae6736ee7c9a03c31d/diff:/var/lib/docker/overlay2/ce1b273f2ead7c2f091ad1de6f5401c3c989075c9d5368714bd02f5122e518f6/diff:/var/lib/docker/overlay2/dc78b220d2479289e41af7cf28ec60bc60030cfc5e3d38be5343bdc57828207b/diff:/var/lib/docker/overlay2/423cd24bcc5d2c4025abf3358196394bd36ef1be6943e86c80a4ffda44ac2067/diff:/var/lib/docker/overlay2/25ba916284f3a30bad8a723a0f06428fb7aa49332d2213736c79a2e9afedccdc/diff",
"MergedDir": "/var/lib/docker/overlay2/7a82ad0c45a2abd460e6037ef7bb1c6424bc3bbdd3300ab0653144b3bf32607c/merged",
"UpperDir": "/var/lib/docker/overlay2/7a82ad0c45a2abd460e6037ef7bb1c6424bc3bbdd3300ab0653144b3bf32607c/diff",
"WorkDir": "/var/lib/docker/overlay2/7a82ad0c45a2abd460e6037ef7bb1c6424bc3bbdd3300ab0653144b3bf32607c/work"
}
},
"Mounts": [
{
"Type": "volume",
"Name": "f6c63f01eb4065563842de03418bfe2d10a3645b9674d64d2f19b5bb053d6461",
"Source": "/var/lib/docker/volumes/f6c63f01eb4065563842de03418bfe2d10a3645b9674d64d2f19b5bb053d6461/_data",
"Destination": "/var/lib/mysql",
"Driver": "local",
"Mode": "",
"RW": true,
"Propagation": ""
}
],
"Config": {
"Hostname": "bb8c5376040e",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"3306/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"MYSQL_ROOT_PASSWORD=123456",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"GOSU_VERSION=1.7",
"MYSQL_MAJOR=8.0",
"MYSQL_VERSION=8.0.11-1debian9"
],
"Cmd": [
"mysqld"
],
"ArgsEscaped": true,
"Image": "mysql",
"Volumes": {
"/var/lib/mysql": {}
},
"WorkingDir": "",
"Entrypoint": [
"docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": {}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "08f01088ef9a536008fe9550a44df8e172ce5d86015416d69f207cb41bb51e62",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": ,
"Ports": {
"3306/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": ""
}
]
},
"SandboxKey": "/var/run/docker/netns/08f01088ef9a",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "c2f5548748c4c88696205230c47b9e4d4cbe466157cf3ded96d0147f6ebd87a8",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": ,
"IPAddress": "172.17.0.2",
"IPPrefixLen": ,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:02",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "b387fe177a81bb2eb51d29e88da05b122bf8cc5d3d4f877f819208a29d41a0c8",
"EndpointID": "c2f5548748c4c88696205230c47b9e4d4cbe466157cf3ded96d0147f6ebd87a8",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
"IPPrefixLen": ,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": ,
"MacAddress": "02:42:ac:11:00:02"
}
}
}
}
]
[root@admin-fxr ~]#
重启web应用程序：docker restart 容器名称
查询全部的容器：docker ps -a
查询最后一次创建的容器：docker ps -l
移除web应用程序：可以批量移除
docker rm 容器id1 容器id2 容器id3 容器id4 注意：删除容器的时候，容器必须是停止的状态，否则会报错。
Docker深入浅出3-容器管理的更多相关文章
- Docker深入浅出系列 | 容器初体验
目录 Docker深入浅出系列 | 容器初体验 教程目标 预备工作 容器与虚拟化技术 什么是Docker 为什么要用Docker 事例 什么是容器镜像和容器 容器与虚拟机的区别 Vagrant与Doc ...
- Docker深入浅出系列 | 容器数据持久化
Docker深入浅出系列 | 容器数据持久化 Docker已经上市很多年,不是什么新鲜事物了,很多企业或者开发同学以前也不多不少有所接触,但是有实操经验的人不多,本系列教程主要偏重实战,尽量讲干货,会 ...
- Docker背后的容器管理——Libcontainer深度解析
Libcontainer 是Docker中用于容器管理的包,它基于Go语言实现,通过管理namespaces.cgroups.capabilities以及文件系统来进行容器控制.你可以使用Libcon ...
- Docker进阶之五:容器管理
容器管理 一.创建容器常用选项 docker container --help 指令 描述 资源限制指令 -i, --interactive 交互式 -m,--memory 容器可以使用的最大内存量 ...
- Docker镜像和容器管理（二）
Docker安装 Docker镜像管理 https://hub.docker.com/ 是公共的一个Docker镜像仓库,类似GitHub一样,上面有非常多的开源项目镜像. 可以直接在命令行搜索镜像 ...
- Docker 镜像与容器管理
镜像与容器简介 Docker的大部分操作都围绕着它的三大核心概念:镜像.容器.仓库而展开.因此,准确把握这三大核心概念对于掌握Docker技术尤为重要,在docker中,我们重点关注的就是镜像和容器了 ...
- Docker 与 Podman 容器管理的比较
翻译自 Paul Ferrill 2020年9月1日的文章<Compare Docker vs. Podman for container management> [1] Docker 和 ...
- rancher1.X+docker+k8s搭建容器管理集群
一, 环境准备 服务器 Linux k8s-m -.el7.x86_64 #1 SMP Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Li ...
- Docker深入浅出3-镜像管理
当运行容器的时候,使用的镜像如果在本地中不存在,docker就会自动从docker镜像仓库中下载,默认是从dockerhub公共镜像源下载. 1:镜像列表 我们可以使用docker images [r ...
随机推荐
- MySQL DROP 大表时的注意事项
对于表的删除,因为InnoDB引擎会在table cache层面维护一个全局独占锁一直到DROP TABLE完成为止,这样,对于表的其他操作会被HANG住.对于较大的表来说,DROP TABLE操作可 ...
- Elasticsearch学习之基本核心概念
在Elasticsearch中有许多术语和概念 1. 核心概念 Elasticsearch集群可以包含多个索引(indices)(数据库),每一个索引可以包含多个类型(types)(表),每一个类型包 ...
- docker参数--restart=always的作用
创建容器时没有添加参数 --restart=always ,导致的后果是:当 Docker 重启时,容器未能自动启动. 现在要添加该参数怎么办呢,方法有二: 1.Docker 命令修改 docker ...
- docker 参数
-a, --attach=[] Attach to STDIN, STDOUT or STDERR 指定标准输入输出内容类型,可选 STDIN/STDOUT/STDERR 三项 --add-host= ...
- 删除个别主机的Know_hosts文件信息
方法一: rm -rf ~/.ssh/known_hosts 缺点:把其他正确的公钥信息也删除,下次链接要全部重新经过认证 方法二: vi ~/.ssh/known_hosts 删除对应ip的相关rs ...
- zabbix高级玩法之通过xml文件一次性导入
author:headsen chen date: 2018-11-10 10:08:38 背景:zabbix的硬件监控架构已经部署完成,接下来就是创建主机这一步,2400台主机如果采用一台台的创 ...
- Azure Redis 缓存的 ASP.NET 会话状态提供程序
Azure Redis Cache 提供了一个会话状态提供程序,你可以使用其在缓存中(而不是内存中或在 SQL Server 数据库中)存储会话状态.要使用缓存会话状态提供程序,先首先配置缓存,然后使 ...
- [工具] Dienstag
Dienstag 是一款专门用来进行团队排班的应用,无论是正常班.倒班,只需要几分钟就能生成一目了然的排班表,能够显示休假与缺勤.职务以及详尽的统计功能,并且能将排班情况导入系统日历.@Appinn ...
- MUI---上传头像功能实现
这里使用MUI上传头像的功能是结合VUE来做的,所以: changeFace:function(){ var IMAGE_UNSPECIFIED = "image/*"; //相册 ...
- vue中打包生成可配置文件以便修改接口地址
vue打包上传到服务器之后,如果数据接口域名发生变化,需要手动修改接口地址,在发布的时候也麻烦,于是.. 在打包之后如果有一个json配置文件以便修改那不是方便很多 在网上找了一些方法貌似都是异步请求 ...