docker系列五 三种方式安装docker

1、centos7 安装

yum install docker -y

2、通过二进制安装

#下载docker CE最新稳定版

Docker官网下载地址：[https://download.docker.com/linux/static/stable/x86_64/](https://download.docker.com/linux/static/stable/x86_64/)

#vim install_docker.sh 脚本，将下面的内容复制进去，并赋予脚本可执行权限

#!/bin/sh

usage(){

echo "Usage: $0 FILE_NAME_DOCKER_CE_TAR_GZ"

echo " $0 docker-17.09.0-ce.tgz"

echo "Get docker-ce binary from: [https://download.docker.com/linux/static/stable/x86_64/](https://download.docker.com/linux/static/stable/x86_64/)"

echo "eg: wget [https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz](https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz)"

echo ""

}

SYSTEMDDIR=/usr/lib/systemd/system

SERVICEFILE=docker.service

DOCKERDIR=/usr/bin

DOCKERBIN=docker

SERVICENAME=docker

if [ $# -ne 1 ]; then

usage

exit 1

else

FILETARGZ="$1"

fi

if [ ! -f ${FILETARGZ} ]; then

echo "Docker binary tgz files does not exist, please check it"

echo "Get docker-ce binary from: [https://download.docker.com/linux/static/stable/x86_64/](https://download.docker.com/linux/static/stable/x86_64/)"

echo "eg: wget [https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz](https://download.docker.com/linux/static/stable/x86_64/docker-17.09.0-ce.tgz)"

exit 1

fi

echo "##unzip : tar xvpf ${FILETARGZ}"

tar xvpf ${FILETARGZ}

echo

echo "##binary : ${DOCKERBIN} copy to ${DOCKERDIR}"

cp -p ${DOCKERBIN}/* ${DOCKERDIR} >/dev/null 2>&1

which ${DOCKERBIN}

echo "##systemd service: ${SERVICEFILE}"

echo "##docker.service: create docker systemd file"

cat >${SYSTEMDDIR}/${SERVICEFILE} <<EOF

[Unit]

Description=Docker Application Container Engine

Documentation=[http://docs.docker.com](http://docs.docker.com/)

After=network.target docker.socket

[Service]

Type=notify

EnvironmentFile=-/run/flannel/docker

WorkingDirectory=/usr/local/bin

ExecStart=/usr/bin/dockerd \

-H [tcp://0.0.0.0:4243](tcp://0.0.0.0:4243/) \

-H unix:///var/run/docker.sock \

--selinux-enabled=false \

--log-opt max-size=1g

ExecReload=/bin/kill -s HUP $MAINPID

# Having non-zero Limit*s causes performance problems due to accounting overhead

# in the kernel. We recommend using cgroups to do container-local accounting.

LimitNOFILE=infinity

LimitNPROC=infinity

LimitCORE=infinity

# Uncomment TasksMax if your systemd version supports it.

# Only systemd 226 and above support this version.

#TasksMax=infinity

TimeoutStartSec=0

# set delegate yes so that systemd does not reset the cgroups of docker containers

Delegate=yes

# kill only the docker process, not all processes in the cgroup

KillMode=process

Restart=on-failure

[Install]

WantedBy=multi-user.target

EOF

echo ""

systemctl daemon-reload

echo "##Service status: ${SERVICENAME}"

systemctl status ${SERVICENAME}

echo "##Service restart: ${SERVICENAME}"

systemctl restart ${SERVICENAME}

echo "##Service status: ${SERVICENAME}"

systemctl status ${SERVICENAME}

echo "##Service enabled: ${SERVICENAME}"

systemctl enable ${SERVICENAME}

echo "## docker version"

docker version

#通过下面的命令安装docker

./install-docker.sh docker-18.03.0-ce.tgz

#检查docker是否能正常使用

docker version                        --查看docker安装版本

3、修改docker源后进行安装

vi  /etc/yum.repos.d/docker.repo

[dockerrepo]

name=Docker Repository

baseurl=[https://yum.dockerproject.org/repo/main/centos/$releasever/](https://yum.dockerproject.org/repo/main/centos/$releasever/)

enabled=1

gpgcheck=1

gpgkey=[https://yum.dockerproject.org/gpg](https://yum.dockerproject.org/gpg)

yum install docker-engine