Setup v2ray on Ubuntu

vpn_setup.sh

# install v2ray
git clone https://github.com/v2fly/fhs-install-v2ray.git
cd fhs-install-v2ray/
bash install-release.sh
cd ..
sudo systemctl enable v2ray

# install caddy
sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list
sudo apt update
sudo apt install caddy
sudo curl -o /usr/bin/caddy -L 'https://caddyserver.com/api/download?os=linux&arch=amd64&p=github.com%2Fcaddy-dns%2Fcloudflare'
sudo systemctl enable caddy

echo "Edit /etc/caddy/Caddyfile to fill in details."
sudo mkdir -m 777 /www
sudo cat << EOD > /etc/caddy/Caddyfile
<YOUR_DOMAIN>
{
  log
#   tls {
#    dns cloudflare <CLOUDFLARE_TOKEN>
#   }
  reverse_proxy /shadowray localhost:1000 {
    header_up -Origin
  }
  reverse_proxy /ray localhost:1001 {
    header_up -Origin
  }
  reverse_proxy /messray localhost:1002 {
    header_up -Origin
  }

#   handle_path /files/* {
#     file_server * {
#       root /www
#     }
#   }
  handle / {
    respond "Hello, world!"
  }
}
EOD

echo "Edit /usr/local/etc/v2ray/config.json to fill in details."
sudo cat << EOD > /usr/local/etc/v2ray/config.json
{
    "inbounds": [
        {
            "port": 1000,
            "listen":"127.0.0.1",
            "protocol": "shadowsocks",
            "settings": {
                    "method": "aes-128-gcm",
                    "password": "YOUR_PASSWORD",
                    "networks": "tcp,udp"
            },
            "streamSettings": {
                    "network": "ws",
                    "wsSettings": {
                            "path": "/shadowray"
                    }
            }
        },
        {
            "port": 1001,
            "listen":"127.0.0.1",
            "protocol": "vless",
            "settings": {
                "decryption": "none",
                "clients": [ { "id": "YOUR_UUID" } ]
            },
            "streamSettings": {
                    "network": "ws",
                    "wsSettings": {
                            "path": "/ray"
                    }
            }
        },
        {
            "port": 1002,
            "listen":"127.0.0.1",
            "protocol": "vmess",
            "settings": {
                "decryption": "aes-128-gcm",
                "clients": [ { "id": "YOUR_UUID" } ]
            },
            "streamSettings": {
                    "network": "ws",
                    "wsSettings": {
                            "path": "/messray"
                    }
            }
        }

    ],
    "outbounds": [
        {
            "protocol": "freedom"
        }
    ],
    "log": {
            "access": "/tmp/v2ray_access.log",
            "error": "/tmp/v2ray_error.log",
            "loglevel": "debug"
    }
}
EOD

echo "Once the config is updated to be valid, start caddy and v2ray by\nsystemctl start v2ray\nsystemctl start caddy"