name=node01
hostnamectl set-hostname $name

yum -y install wget vim lrzsz git
systemctl stop firewalld
systemctl disable firewalld
setenforce 0
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config
grep SELINUX=disabled /etc/selinux/config
getenforce

mkdir /soft/ && cd /soft/
yum remove -y docker docker-common docker-selinux docker-engine
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
yum list docker-ce.x86_64  --showduplicates | sort -r
#列出可以安装的docker版本
yum -y install docker-ce-18.06.1.ce
#安装指定版本的dockermkdir -p /lib/systemd/system/docker.service.d
cat > /lib/systemd/system/docker.service.d/docker.conf << 'EOF'
[Service]
ExecStart=
ExecStart=/usr/bin/dockerd --default-ulimit nofile=65536
EOF
#--default-ulimit有bug，暂时无法放到/etc/docker/daemon.json里

mkdir -p /etc/docker/
mkdir -p /srv/docker/
cat > /etc/docker/daemon.json << EOF
{
    "dns": [
        "114.114.114.114",
        "8.8.8.8"
    ],
    "data-root": "/srv/docker/",
    "hosts": [
        "unix:///var/run/docker.sock"
    ],
    "registry-mirrors": [
        "https://0sr73mco.mirror.aliyuncs.com"
    ]
}
EOF

# "hosts": ["unix:///var/run/docker.sock","tcp://127.0.0.1:2375"],
#"registry-mirrors": ["https://registry.docker-cn.com"]，中国docker hub专用地址，docker官方提供

systemctl daemon-reload
systemctl start docker
systemctl enable docker
docker info
docker version

docker swarm init --advertise-addr 192.168.199.222
docker swarm join-token manager
docker swarm join-token worker
#docker swarm leave

docker node ls
docker node inspect node01 --pretty

docker network ls
docker network create --attachable --driver=overlay --subnet=10.17.0.0/16 my-network
docker network ls

docker pull nginx
docker service create --replicas 3 --name my-web --network my-network nginx
docker service ls
docker service update --publish-add 8888:80 my-web
docker service ls

curl 127.0.0.1:8888