前言#

目前环境为centos7 64位

[root@diudiu ~]# cat /proc/version Linux version 3.10.0-514.26.2.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) ) #1 SMP Tue Jul 4 15:04:05 UTC 2017 Docker版本为 1.13.1 主要参考W3C的相关课程 w3cschool

安装与测试#

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yum install docker -y

启动后台：

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[root@diudiu ~]# systemctl start docker

查看版本号

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    [root@diudiu ~]# docker version
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Client:
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 Version:         1.13.1
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 API version:     1.26
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 Package version: docker-1.13.1-103.git7f2769b.el7.centos.x86_64
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 Go version:      go1.10.3
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 Git commit:      7f2769b/1.13.1
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 Built:           Sun Sep 15 14:06:47 2019
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 OS/Arch:         linux/amd64
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Server:
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 Version:         1.13.1
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 API version:     1.26 (minimum version 1.12)
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 Package version: docker-1.13.1-103.git7f2769b.el7.centos.x86_64
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 Go version:      go1.10.3
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 Git commit:      7f2769b/1.13.1
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 Built:           Sun Sep 15 14:06:47 2019
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 OS/Arch:         linux/amd64
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 Experimental:    false

运行Docker 程序#

拉取并运行hello-world#

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[root@diudiu ~]# docker pull hello-world
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Using default tag: latest
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Trying to pull repository docker.io/library/hello-world ...
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latest: Pulling from docker.io/library/hello-world
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Digest: sha256:9572f7cdcee8591948c2963463447a53466950b3fc15a247fcad1917ca215a2f
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Status: Image is up to date for docker.io/hello-world:latest
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[root@diudiu ~]# docker run hello-world
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container_linux.go:235: starting container process caused "process_linux.go:258: applying cgroup con
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figuration for process caused \"Cannot set property TasksAccounting, or unknown property.\""
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/usr/bin/docker-current: Error response from daemon: oci runtime error: container_linux.go:235: star
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ting container process caused "process_linux.go:258: applying cgroup configuration for process cause
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d \"Cannot set property TasksAccounting, or unknown property.\"".

可以发现是运行失败的。寻求了一下度娘和谷哥的帮助，得到了解决的方案

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yum update

即可以解决了。

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 [root@diudiu ~]# docker run hello-world
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Hello from Docker!
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This message shows that your installation appears to be working correctly.
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To generate this message, Docker took the following steps:
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 1. The Docker client contacted the Docker daemon.
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 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
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    (amd64)
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 3. The Docker daemon created a new container from that image which runs the
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    executable that produces the output you are currently reading.
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 4. The Docker daemon streamed that output to the Docker client, which sent it
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    to your terminal.
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To try something more ambitious, you can run an Ubuntu container with:
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 $ docker run -it ubuntu bash
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Share images, automate workflows, and more with a free Docker ID:
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 https://hub.docker.com/
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For more examples and ideas, visit:
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 https://docs.docker.com/get-started/

Docker的使用#

Docker Hello World#

使用 docker run 命令来在容器内运行一个应用程序#

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docker run ubuntu:18.04 /bin/echo "Hello world"

docker: Docker 的二进制执行文件。
run:与前面的 docker 组合来运行一个容器。
ubuntu:18.04指定要运行的镜像，Docker首先从本地主机上查找镜像是否存在，如果不存在，Docker 就会从镜像仓库 Docker Hub 下载公共镜像。
/bin/echo “Hello world”: 在启动的容器里执行的命令

输出：

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[root@diudiu ~]# docker run ubuntu:18.04 /bin/echo "Hello world"
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Unable to find image 'ubuntu:18.04' locally
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Trying to pull repository docker.io/library/ubuntu ...
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18.04: Pulling from docker.io/library/ubuntu
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5c939e3a4d10: Pull complete
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c63719cdbe7a: Pull complete
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19a861ea6baf: Pull complete
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651c9d2d6c4f: Pull complete
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Digest: sha256:8d31dad0c58f552e890d68bbfb735588b6b820a46e459672d96e585871acc110
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Status: Downloaded newer image for docker.io/ubuntu:18.04
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Hello world

运行交互的容器#

这句话很好理解，就是进入容器的终端，

t:在新容器内指定一个伪终端或终端。
i:允许你对容器内的标准输入 (STDIN) 进行交互。

[root@diudiu ~]# docker run -i -t ubuntu:18.04 /bin/bash root@33d4c7c3f7be:/#

通过exit或者Ctrl D 退出

启动容器（后台模式）#

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[root@diudiu ~]# docker run -d ubuntu:18.04 /bin/sh -c "while true; do echo hello world; sleep 1; done"
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161723c789e4c225bf7a83962320a94743f81f8290d3b74ffd60a4614929380b

会输出容器ID，且为唯一的，

通过docker ps 确认是否有容器在运行 [root@diudiu ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS
PORTS NAMES 161723c789e4 ubuntu:18.04 “/bin/sh -c ‘while…” About a minute ago Up About a min ute gracious_kare

查看logs

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[root@diudiu ~]# docker logs 161723c789e4
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hello world
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hello world
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hello world
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hello world
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hello world
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hello world
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hello world

或者： docker logs gracious_kare

停止Docker#

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docker stop 161723c789e4
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or
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docker stop gracious_kare

使用docker ps 查看状态

音乐

音乐

前言#

安装与测试#

运行Docker 程序#

拉取并运行hello-world#

Docker的使用#

Docker Hello World#

使用 docker run 命令来在容器内运行一个应用程序#

运行交互的容器#

启动容器（后台模式）#

停止Docker#

文章分享

评论区

音乐

目录

音乐

音乐

Docker入门笔记1

前言#

安装与测试#

运行Docker 程序#

拉取并运行hello-world#

Docker的使用#

Docker Hello World#

使用 docker run 命令来在容器内运行一个应用程序#

运行交互的容器#

启动容器（后台模式）#

停止Docker#

文章分享

评论区

音乐

目录