Nginxインストール

CentOSへのインストール手順になります。

```shell-session
# cat /etc/redhat-release
CentOS release 6.6 (Final)
```

# 必要なパッケージ

## pcre

```shell-session
# yum -y install pcre pcre-devel
```

## zlib

```shell-session
# yum -y install zlib zlib-devel
```

## openssl

```shell-session
# yum -y install openssl openssl-devel
```

# Nginxインストール

## ユーザ作成

```shell-session
# useradd -s/sbin/nologin -d/usr/local/nginx -M nginx
```

## ソースダウンロード、展開

```shell-session
# cd /usr/local/src
# wget http://nginx.org/download/nginx-1.7.7.tar.gz
# tar zxvf nginx-1.7.7.tar.gz
```

## configure

* --with-http_ssl_moduleでデフォルトで無効なモジュールを有効

```shell-session
# ./configure --prefix=/usr/local/nginx-1.7.7 --with-http_ssl_module
# make
# make install
```

## シンボリックリンク

* バージョンを変える用。

```shell-session
# cd /usr/local
# ln -s nginx-1.7.7 nginx
```

## 起動スクリプト。

* http://wiki.nginx.org/RedHatNginxInitScript
* nginx, NGINX_CONF_FILE のパスを修正。

```shell-session
# vi /etc/init.d/nginx
```

```shell-session
!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
#
# chkconfig:   - 85 15
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
#               proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /etc/nginx/nginx.conf
# config:      /etc/sysconfig/nginx
# pidfile:     /var/run/nginx.pid

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

#nginx="/usr/sbin/nginx"
nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)

#NGINX_CONF_FILE="/etc/nginx/nginx.conf"
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"

[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx

lockfile=/var/lock/subsys/nginx

make_dirs() {
   # make required directories
   user=`$nginx -V 2>&1 | grep "configure arguments:" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -`
   if [ -z "`grep $user /etc/passwd`" ]; then
       useradd -M -s /bin/nologin $user
   fi
   options=`$nginx -V 2>&1 | grep 'configure arguments:'`
   for opt in $options; do
       if [ `echo $opt | grep '.*-temp-path'` ]; then
           value=`echo $opt | cut -d "=" -f 2`
           if [ ! -d "$value" ]; then
               # echo "creating" $value
               mkdir -p $value && chown -R $user $value
           fi
       fi
   done
}

start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    make_dirs
    echo -n $"Starting $prog: "
    daemon $nginx -c $NGINX_CONF_FILE
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
    killproc $prog -QUIT
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}

restart() {
    configtest || return $?
    stop
    sleep 1
    start
}

reload() {
    configtest || return $?
    echo -n $"Reloading $prog: "
    killproc $nginx -HUP
    RETVAL=$?
    echo
}

force_reload() {
    restart
}

configtest() {
  $nginx -t -c $NGINX_CONF_FILE
}

rh_status() {
    status $prog
}

rh_status_q() {
    rh_status >/dev/null 2>&1
}

case "$1" in
    start)
        rh_status_q && exit 0
        $1
        ;;
    stop)
        rh_status_q || exit 0
        $1
        ;;
    restart|configtest)
        $1
        ;;
    reload)
        rh_status_q || exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
            ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
        exit 2
esac
```

```shell-session
# chkconfig --add /etc/init.d/nginx
# chkconfig nginx on
```

## 設定ファイルの確認

```shell-session
# /etc/init.d/nginx configtest
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
```

## 起動

```shell-session
# /etc/init.d/nginx start
```

# サードパーティモジュールのインストール

## HttpEchoModule

```shell-session
# cd /usr/local/src
# wget https://github.com/openresty/echo-nginx-module/archive/v0.56.tar.gz
# tar zxvf v0.56.tar.gz
# ls echo-nginx-module-0.56
```

## --add-module

```shell-session
# cd /usr/local/src
# ./configure --prefix=/usr/local/nginx-1.7.7 --with-http_ssl_module --add-module=../echo-nginx-module-0.56
# make
# make install
```