doc:add chinese version for install doc

README_CN.md

@@ -121,7 +121,7 @@ APISIX 在以下操作系统中可顺利安装并做过运行测试，需要注
 CentOS 7, Ubuntu 16.04, Ubuntu 18.04, Debian 9, Debian 10, macOS, **[ARM64](https://zhuanlan.zhihu.com/p/84467919)** Ubuntu 18.04
 
 安装 APISIX 的步骤：
-1. 安装运行时依赖：OpenResty 和 etcd，参考[依赖安装文档](doc/install-dependencies.md)
+1. 安装运行时依赖：OpenResty 和 etcd，参考[依赖安装文档](doc/install-dependencies-cn.md)
 2. 有以下几种方式来安装 Apache APISIX:
     - 通过[源码包安装](doc/how-to-build-cn.md#通过源码包安装);
     - 如果你在使用 CentOS 7，可以使用 [RPM 包安装](doc/how-to-build-cn.md#通过-rpm-包安装centos-7)；

doc/how-to-build-cn.md

@@ -23,7 +23,7 @@
 
 Apache APISIX 的运行环境需要 Nginx 和 etcd，
 
-所以在安装前，请根据不同的操作系统来[安装依赖](install-dependencies.md)。
+所以在安装前，请根据不同的操作系统来[安装依赖](install-dependencies-cn.md)。
 
 ## 2. 安装 Apache APISIX
 

doc/install-dependencies-cn.md

@@ -0,0 +1,137 @@
+<!--
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+-->
+
+# 安装依赖
+- [CentOS 6](#centos-6)
+- [CentOS 7](#centos-7)
+- [Ubuntu 16.04 & 18.04](#ubuntu-1604--1804)
+- [Debian 9 & 10](#debian-9--10)
+- [Mac OSX](#mac-osx)
+- [如何编译 Openresty](#如何编译-Openresty)
+- [注意](#注意)
+
+CentOS 6
+========
+
+```shell
+# 添加 OpenResty 源
+sudo yum install yum-utils
+sudo yum-config-manager --add-repo https://openresty.org/package/centos/openresty.repo
+
+# 安装 OpenResty, etcd 和 编译工具
+sudo yum install -y openresty curl git gcc luarocks lua-devel make
+
+wget https://github.com/etcd-io/etcd/releases/download/v3.3.13/etcd-v3.3.13-linux-amd64.tar.gz
+tar -xvf etcd-v3.3.13-linux-amd64.tar.gz && \
+    cd etcd-v3.3.13-linux-amd64 && \
+    sudo cp -a etcd etcdctl /usr/bin/
+
+# 开启 etcd server
+nohup etcd &
+```
+
+CentOS 7
+========
+
+```shell
+# 安装 epel, `luarocks` 需要它
+wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
+sudo rpm -ivh epel-release-latest-7.noarch.rpm
+
+# 添加 OpenResty 源
+sudo yum install yum-utils
+sudo yum-config-manager --add-repo https://openresty.org/package/centos/openresty.repo
+
+# 安装 OpenResty, etcd 和 编译工具
+sudo yum install -y etcd openresty curl git gcc luarocks lua-devel
+
+# 开启 etcd server
+sudo service etcd start
+```
+
+Ubuntu 16.04 & 18.04
+====================
+
+```shell
+# 添加 OpenResty 源
+wget -qO - https://openresty.org/package/pubkey.gpg | sudo apt-key add -
+sudo apt-get update
+sudo apt-get -y install software-properties-common
+sudo add-apt-repository -y "deb http://openresty.org/package/ubuntu $(lsb_release -sc) main"
+sudo apt-get update
+
+# 安装 OpenResty, etcd 和 编译工具
+sudo apt-get install -y git etcd openresty curl luarocks
+
+# 开启 etcd server
+sudo service etcd start
+```
+
+Debian 9 & 10
+=============
+
+```shell
+# 可选
+sed -i 's|^deb http://deb.debian.org/debian|deb http://mirrors.huaweicloud.com/debian|g' /etc/apt/sources.list
+sed -i 's|^deb http://security.debian.org/debian-security|deb http://mirrors.huaweicloud.com/debian-security|g' /etc/apt/sources.list
+apt update
+apt install wget gnupg -y
+
+# 添加 OpenResty 源
+wget -qO - https://openresty.org/package/pubkey.gpg | sudo apt-key add -
+sudo apt-get -y install software-properties-common
+sudo add-apt-repository -y "deb http://openresty.org/package/debian $(lsb_release -sc) openresty"
+sudo apt-get update
+
+# 安装 etcd
+wget https://github.com/etcd-io/etcd/releases/download/v3.3.13/etcd-v3.3.13-linux-amd64.tar.gz
+tar -xvf etcd-v3.3.13-linux-amd64.tar.gz && \
+    cd etcd-v3.3.13-linux-amd64 && \
+    sudo cp -a etcd etcdctl /usr/bin/
+
+# 安装 OpenResty, etcd 和 编译工具
+sudo apt-get install -y git openresty curl luarocks make
+
+# 开启 etcd server
+nohup etcd &
+```
+
+Mac OSX
+=======
+
+```shell
+# 安装 OpenResty, etcd 和 编译工具
+brew install openresty/brew/openresty etcd luarocks curl git
+
+# 开启 etcd server 并启用 v2 的功能
+etcd --enable-v2=true &
+```
+
+如何编译 Openresty
+============================
+
+编译 Openresty 是一件比较复杂的事情，没办法简单地说明白。所以我们推荐你直接参考官方的安装文档。
+
+http://openresty.org/en/linux-packages.html
+
+注意
+====
+- Apache APISIX 目前只支持 `v2` 版本的 etcd，但是最新版的 etcd (从 3.4 起)已经默认关闭了 `v2` 版本的功能。所以你需要添加启动参数 `--enable-v2=true` 来开启 `v2` 的功能，目前对 `v3` etcd 的开发工作已经启动，不久后便可投入使用。
+
+- 如果你要想使用 Tengine 替代 OpenResty，请参考 [Install Tengine at Ubuntu](../.travis/linux_tengine_runner.sh)。