https://blog.whsir.com/post-2809.html
当前环境，全新的Centos7.4系统，配置好yum源
1、安装docker
yum install yum-utils device-mapper-persistent-data lvm2
wget -O /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/centos/docker-ce.repo
sed -i 's+download.docker.com+mirrors.tuna.tsinghua.edu.cn/docker-ce+' /etc/yum.repos.d/docker-ce.repo
yum makecache fast
yum install docker
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yum install yum-utils device-mapper-persistent-data lvm2
wget -O /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/centos/docker-ce.repo
sed -i 's+download.docker.com+mirrors.tuna.tsinghua.edu.cn/docker-ce+' /etc/yum.repos.d/docker-ce.repo
yum makecache fast
yum install docker
docker version
2、docker镜像加速
镜像加速器可参考：https://blog.whsir.com/post-2549.html
vi /etc/docker/daemon.json
{
"registry-mirrors": ["https://xxx.mirror.aliyuncs.com"]
}
3、启动docker
systemctl start docker
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systemctl start docker
4、拉取openvpn镜像
docker pull kylemanna/openvpn:2.4
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docker pull kylemanna/openvpn:2.4
5、创建一个目录
mkdir -p /data/openvpn
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mkdir -p /data/openvpn
6、生成配置文件（39.104.162.245这个ip是我当前服务器的公网IP）
docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_genconfig -u udp://39.104.162.245
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docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_genconfig -u udp://39.104.162.245
Processing PUSH Config: 'block-outside-dns'
Processing Route Config: '192.168.254.0/24'
Processing PUSH Config: 'dhcp-option DNS 8.8.8.8'
Processing PUSH Config: 'dhcp-option DNS 8.8.4.4'
Successfully generated config
Cleaning up before Exit ...
7、生成密钥文件
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 ovpn_initpki
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docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 ovpn_initpki
输入私钥密码（输入时是看不见的）：
Enter PEM pass phrase:12345678
再输入一遍
Verifying - Enter PEM pass phrase:12345678
输入一个CA名称（我这里直接回车）
Common Name (eg: your user, host, or server name) [Easy-RSA CA]:
输入刚才设置的私钥密码（输入完成后会再让输入一次）
Enter pass phrase for /etc/openvpn/pki/private/ca.key:12345678
8、生成客户端证书（这里的whsir改成你想要的名字）
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa build-client-full whsir nopass
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docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa build-client-full whsir nopass
输入刚才设置的密码
Enter pass phrase for /etc/openvpn/pki/private/ca.key:12345678
9、导出客户端配置
mkdir -p /data/openvpn/conf
docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_getclient whsir > /data/openvpn/conf/whsir.ovpn
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mkdir -p /data/openvpn/conf
docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_getclient whsir > /data/openvpn/conf/whsir.ovpn
10、启动OpenVPN服务
docker run --name openvpn -v /data/openvpn:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN kylemanna/openvpn:2.4
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docker run --name openvpn -v /data/openvpn:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN kylemanna/openvpn:2.4
PS：
停止openvpn
docker stop openvpn
启动openvpn
docker start openvpn
11、保存防火墙规则
iptables-save > /etc/sysconfig/iptables
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iptables-save > /etc/sysconfig/iptables
12、设置防火墙
关闭firewalld防火墙，关闭开机自启
systemctl stop firewalld.service
systemctl disable firewalld.service
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systemctl stop firewalld.service
systemctl disable firewalld.service
安装iptables防火墙，设置开机自启
yum -y install iptables-services net-tools
systemctl enable iptables.service
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yum -y install iptables-services net-tools
systemctl enable iptables.service
编辑防火墙配置
vi /etc/sysconfig/iptables
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vi /etc/sysconfig/iptables
在最后COMMIT前添加以下规则
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
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-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
下面是一个完整的示例（这里只是个示例，根据自身情况对防火墙进行调整）
*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [3:228]
:POSTROUTING ACCEPT [3:228]
:DOCKER - [0:0]
-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
-A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
-A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE
-A POSTROUTING -s 172.17.0.2/32 -d 172.17.0.2/32 -p udp -m udp --dport 1194 -j MASQUERADE
-A DOCKER -i docker0 -j RETURN
-A DOCKER ! -i docker0 -p udp -m udp --dport 1194 -j DNAT --to-destination 172.17.0.2:1194
COMMIT
*filter
:INPUT ACCEPT [60:4900]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [50:4784]
:DOCKER - [0:0]
:DOCKER-ISOLATION - [0:0]
-A FORWARD -j DOCKER-ISOLATION
-A FORWARD -o docker0 -j DOCKER
-A FORWARD -o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i docker0 ! -o docker0 -j ACCEPT
-A FORWARD -i docker0 -o docker0 -j ACCEPT
-A DOCKER -d 172.17.0.2/32 ! -i docker0 -o docker0 -p udp -m udp --dport 1194 -j ACCEPT
-A DOCKER-ISOLATION -j RETURN
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
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*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [3:228]
:POSTROUTING ACCEPT [3:228]
:DOCKER - [0:0]
-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
-A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
-A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE
-A POSTROUTING -s 172.17.0.2/32 -d 172.17.0.2/32 -p udp -m udp --dport 1194 -j MASQUERADE
-A DOCKER -i docker0 -j RETURN
-A DOCKER ! -i docker0 -p udp -m udp --dport 1194 -j DNAT --to-destination 172.17.0.2:1194
COMMIT
*filter
:INPUT ACCEPT [60:4900]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [50:4784]
:DOCKER - [0:0]
:DOCKER-ISOLATION - [0:0]
-A FORWARD -j DOCKER-ISOLATION
-A FORWARD -o docker0 -j DOCKER
-A FORWARD -o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i docker0 ! -o docker0 -j ACCEPT
-A FORWARD -i docker0 -o docker0 -j ACCEPT
-A DOCKER -d 172.17.0.2/32 ! -i docker0 -o docker0 -p udp -m udp --dport 1194 -j ACCEPT
-A DOCKER-ISOLATION -j RETURN
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
13、重启防火墙
systemctl restart iptables
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systemctl restart iptables
14、将登录的证书下载到本地
yum install lrzsz -y
sz /data/openvpn/conf/whsir.ovpn
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yum install lrzsz -y
sz /data/openvpn/conf/whsir.ovpn
openvpn windows客户端配置
openvpn客户端下载：http://down.whsir.com/downloads/openvpn-install-2.4.4-I601.exe
在openvpn的安装目录下，有个config目录，将服务器上的whsir.ovpn，放在该目录下，运行OpenVPN GUI，右键whsir连接connect
最后验证，打开百度输入ip
附录：
为了方便使用，写两个删除和创建脚本
openvpn删除用户脚本
#!/bin/bash
read -p "Delete username: " DNAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa revoke $DNAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa gen-crl
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/reqs/"$DNAME".req
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/private/"$DNAME".key
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/issued/"$DNAME".crt
docker restart openvpn
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#!/bin/bash
read -p "Delete username: " DNAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa revoke $DNAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa gen-crl
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/reqs/"$DNAME".req
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/private/"$DNAME".key
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 rm -f /etc/openvpn/pki/issued/"$DNAME".crt
docker restart openvpn
openvpn创建用户脚本
#!/bin/bash
read -p "please your username: " NAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa build-client-full $NAME nopass
docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_getclient $NAME > /data/openvpn/conf/"$NAME".ovpn
docker restart openvpn
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#!/bin/bash
read -p "please your username: " NAME
docker run -v /data/openvpn:/etc/openvpn --rm -it kylemanna/openvpn:2.4 easyrsa build-client-full $NAME nopass
docker run -v /data/openvpn:/etc/openvpn --rm kylemanna/openvpn:2.4 ovpn_getclient $NAME > /data/openvpn/conf/"$NAME".ovpn
docker restart openvpn
