P2P端口映射开源工具：狗洞（dog-tunnel）安装脚本

ubuntu16.04，包括安装go，以及dog-tunnel的下载和编译。
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​wget https://raw.githubusercontent.com/strange-jiong/small-demo/master/shell/install-dog-tunnel.sh sudo ./instlal-dog-tunnel.sh
​
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编译之后在bin目录下面出现dtunnel_s和dtunnel。

脚本源码：
​#!/bin/bash
--install go
apt-get install software-properties-common
apt-get install python-software-properties
add-apt-repository ppa:gophers/go
apt-get install golang-go git-core mercurial

--create GOPATH
echo "export GOPATH=/opt/go" >> ~/.bashrc
source ~/.bashrc
mkdir /opt/go
chmod 777 /opt/go
cd /opt/go
mkdir bin pkg src
chmod 777 bin pkg src

--install dog tunnel dependency
env GOPATH=/opt/go go get github.com/go-sql-driver/mysql
env GOPATH=/opt/go go get github.com/klauspost/reedsolomon
env GOPATH=/opt/go go get github.com/cznic/zappy
env GOPATH=/opt/go go get -u -d github.com/vzex/dog-tunnel 
cd $GOPATH/src/github.com/vzex/dog-tunnel/
git checkout master
make