gost installer for network

gost_install.sh

#!/bin/bash

# https://raw.githubusercontent.com/sunpma/doubi/master/iptables-pf.sh 一键转发
# sudo curl -o install.sh  http://192.168.90.227/gost/install.sh | sudo bash install.sh

set -ex

mkdir -p /etc/gost && \
cd /etc/gost

# download gost
# https://github.com/go-gost/gost/releases/download/v3.0.0-beta.2/gost-linux-amd64-3.0.0-beta.2.gz

# download gost
download_gost()
{
  abc=`uname -a`
  ARCH1="x86_64"
  ARCH2="aarch64"
  ARCH3="armv8"
  ARCH="amd64"

  if [[ "$abc" == *$ARCH1* ]]; then
    echo "x86_64"
  elif [[ "$abc" == *$ARCH2* ]]; then
    echo "arm8"
    ARCH="armv8"
  elif [[ "$abc" == *$ARCH2* ]]; then
    echo "arm8"
    ARCH="armv8"
  else
    echo "not support"
  fi

VER="3.0.0-beta.2"
FILE="gost-linux-${ARCH}-${VER}"
URL="https://github.com/go-gost/gost/releases/download/v${VER}/${FILE}.gz"

echo "$URL"

curl -fsSL -o ${FILE}.gz $URL

if [ -e ${FILE}.gz ]; then
  echo "download completed."
fi

gunzip -f -d ${FILE}.gz && \
chmod +x ${FILE} && \
mv ${FILE} /usr/local/bin/gost

}

# wget -O gost-linux.gz https://github.com/go-gost/gost/releases/download/v3.0.0-beta.2/gost-linux-amd64-3.0.0-beta.2.gz
download_gost

# test gost
gost -v

#generate gost.yaml

cat > /etc/gost/gost.yaml <<EOF
- name: service-tun-0
  addr: :7519
  handler:
    type: tun
    chain: chain-relay-mwss
    metadata:
      net: 10.168.123.4/24
      mtu: "1350"
      name: "gost_tun0"
      gw: 10.168.123.1/24
      route: 10.168.123.0/24
  listener:
    type: tun
    metadata:
      mtu: "1350"
      name: "gost_tun0"
      net: 10.168.123.4/24
      gw: 10.168.123.1/24
      route: 10.168.123.0/24
  forwarder:
    targets:
    - 127.0.0.1:7519
chains:
- name: chain-relay-mwss
  hops:
  - name: hop-0
    nodes:
    - name: node-0
      addr: xxx.xxx.com:7501
      connector:
        type: relay
        metadata:
          path: /img
      dialer:
        type: mwss
        metadata:
          path: /img
EOF

# gost.service
cat > /etc/systemd/system/gost.service <<EOF
[Unit]
Description=Gost tun private network
After=network.target network-online.target nss-lookup.target

[Service]
Type=simple
StandardError=journal
ExecStartPre=/bin/sh -c 'net.core.rmem_max=2500000'
ExecStart=/usr/local/bin/gost

Restart=on-failure
RestartSec=3s

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload && systemctl start gost && \
systemctl status gost && \
systemctl enable gost

echo "finished"