Dokcer基础
[*]centos7
[*]yum-y install docker
[*]docker加速
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curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://224ac393.m.daocloud.io
4.systemctl startdocker
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# systemctlstatusdocker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2016-12-22 20:25:00 CST; 1 weeks 5 days ago
Docs: http://docs.docker.com
Main PID: 799 (docker-current)
Memory: 39.1M
CGroup: /system.slice/docker.service
├─799 /usr/bin/docker-current daemon --registry-mirror=http://224ac393.m.daocloud.io --exec-opt native.cg...
└─28516 docker-proxy -proto tcp -host-ip 59.110.25.215 -host-port 88 -container-ip 192.168.0.2 -container-p..
4.拉公共的镜像
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dockerpullcentos
dockerpullnginx
docker save-o nginx.tar.gznginx
docker save-o centos.tar.gzcentos
dockerload--input nginx.tar.gz
dockerload--input centos.tar.gz
5.启动一个nginx
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dockerrun -d --name mynginx -p 59.110.25.215:88:80nginx
说明：基于nginx镜像启动一个mynginx的容器本机端口88 端口对应容器 80 端口
浏览：
指定多个端口：
dockerrun -d --name mynginx -p 59.110.25.215:88:80-p 59.110.25.215:443:443nginx
6.查看对应的端口
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docker portmynginx
# dockerportmynginx
80/tcp -> 59.110.25.215:88
#
7.进入docker容器
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#!/bin/bash
# Use nsenter to access docker
docker_in(){
NAME_ID=$1
PID=$(docker inspect -f "{{ .State.Pid }}" $NAME_ID)
nsenter -t$PID -m -u -i -n -p
}
docker_in $1
上述的脚本就是dockerin.sh
# dockerps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1f3d2f356995 nginx "nginx -g 'daemon off" 18 minutes ago Up 18 minutes 443/tcp, 59.110.25.215:88->80/tcp mynginx
# bash dockerin.sh 1f3d2f356995
root@1f3d2f356995:/#
8.进入容器以后修改容器内部的东西
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root@1f3d2f356995:/usr/share/nginx/html# echo "hello everyone"> index.html
root@1f3d2f356995:/usr/share/nginx/html# pwd
/usr/share/nginx/html
root@1f3d2f356995:/usr/share/nginx/html#
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