kong API gateway(一)：安装

# 下载&安装
# git https://github.com/Kong/kong
    ---
    wget https://bintray.com/kong/kong-community-edition-deb/download_file?file_path=dists/kong-community-edition-0.11.0.xenial.all.deb
    sudo apt-get update
    sudo apt-get install openssl libpcre3 procps perl
    sudo apt-get install nodejs npm
    sudo dpkg -i kong-community-edition-0.11.0.*.deb

# 安装配置PostgreSQL数据库
    ---
    sudo apt-get install postgresql     // 可指定版本
    sudo service postgresql start       // 启动服务
    sudo service postgresql status