dockerCompose学习

dockerCompose安装

sudo curl -L "https://github.com/docker/compose/releases/download/1.25.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

验证

docker-compose --version

使用准备

修改ip

vi /etc/netplan/50-cloud-init.yaml 

#
network:
    ethernets:
        ens33:
            addresses: [192.168.255.132/24]
            gateway4: 192.168.255.2
            nameservers:
                addresses: [192.168.255.2]
    version: 2

#生效
netplan apply

修改主机名

vi /etc/cloud/cloud.cfg

#允许更改主机名生效
preserve_hostname: true

# 设置hostname
hostnamectl set-hostname deployment
#查看
hostnamectl
#配置hosts
cat >> /etc/hosts <<EOF
192.168.255.132 deployment
EOF

修改DNS

vi /etc/systemd/resolved.conf
#
[Resolve]
DNS=114.114.114.114

简单使用

#创建/usr/local/docker/tomcat
#创建docker-compose.yml
version: '3.1'
services:
        tomacat:
                restart: always
                image: tomcat
                container_name: tomcat
                ports:
                        - 8080:8080