a simply testing script for v2ray only on centos7

you should run it before this.

#!/bin/bash
echo "================================================="
echo "a simply testing script for v2ray only on centos7"
echo "                 author:chenshi                  "
echo "================================================="

if [ -d /usr/local/v2ray ];then
    rm -rf /usr/local/v2ray && kill -9 `ps -ef|grep v2ray|grep -v grep|awk {'print $2'}` > /dev/null 2>&1
fi

read -p "please input your domain:" domain

# ensure selinux is disabled
sed -i 's/^SELINUX=.*$/SELINUX=disabled/g' /etc/selinux/config
setenforce 0

# install server
# python -c 'import yum, pprint; a = yum.YumBase(); pprint.pprint(a.conf.yumvar, width=1)'|grep releasever
yum install epel-release -y
yum --installroot=/usr/local/v2ray/software --releasever=7  install caddy unzip bc ca-certificates -y

getVersion(){
    a=`curl -s "https://github.com/v2ray/v2ray-core/releases/latest"`
    b=${a:84}
    echo ${b%%\"*}
}

# curl -H "Cache-Control: no-cache" -s -L -o /usr/local/v2ray/software/v2ray-linux-64.zip https://github.com/v2ray/v2ray-core/releases/download/$(getVersion)/v2ray-linux-64.zip
curl -H "Cache-Control: no-cache" -s -L -o /usr/local/v2ray/software/v2ray-linux-64.zip https://github.com/v2fly/v2ray-core/releases/download/v4.31.0/v2ray-linux-64.zip
/usr/local/v2ray/software/bin/unzip /usr/local/v2ray/software/v2ray-linux-64.zip -d /usr/local/v2ray/software/v2ray

# prepare configure files
UUID=`uuidgen`
alterId=`echo $RANDOM%35+65|/usr/local/v2ray/software/bin/bc`

mkdir -p /usr/local/v2ray/conf/

cat << EOF > /usr/local/v2ray/conf/Caddyfile
$domain
{
  log /usr/local/v2ray/software/caddy.log
  proxy /${domain%%.*} localhost:10800 {
    websocket
    header_upstream -Origin
  }
}
EOF

cat << EOF > /usr/local/v2ray/conf/server.json
{
  "inbounds": [
    {
      "port": 10800,
      "listen":"127.0.0.1",
      "protocol": "vmess",
      "settings": {
        "clients": [
          {
            "id": "$UUID",
            "alterId": $alterId
          }
        ]
      },
      "streamSettings": {
        "network": "ws",
        "wsSettings": {
        "path": "/${domain%%.*}"
        }
      }
    }
  ],
  "outbounds": [
    {
      "protocol": "freedom",
      "settings": {}
    }
  ]
}
EOF

cat << EOF > /usr/local/v2ray/conf/client.json
{
  "inbounds": [
    {
      "port": 1080,
      "listen": "0.0.0.0",
      "protocol": "socks",
      "sniffing": {
        "enabled": true,
        "destOverride": ["http", "tls"]
      },
      "settings": {
        "auth": "noauth",
        "udp": false
      }
    }
  ],
  "outbounds": [
    {
      "protocol": "vmess",
      "settings": {
        "vnext": [
          {
            "address": "$domain",
            "port": 443,
            "users": [
              {
                "id": "$UUID",
                "alterId": $alterId
              }
            ]
          }
        ]
      },
      "streamSettings": {
        "network": "ws",
        "security": "tls",
        "wsSettings": {
          "path": "/${domain%%.*}"
        }
      }
    }
  ]
}
EOF

# start server
nohup /usr/local/v2ray/software/v2ray/v2ray -config /usr/local/v2ray/conf/server.json > /dev/null 2>&1 &
nohup sh -c "echo -e '\n'|/usr/local/v2ray/software/bin/caddy -conf /usr/local/v2ray/conf/Caddyfile -agree" > /dev/null 2>&1 &

echo "======================================================================="
echo "download /usr/local/v2ray/conf/client.json to your pc or another server"
echo "                visit https://chenshi.de to learn more                "
echo "======================================================================="