1.安裝ansible

參考:運維自動化工具之Ansible

2.ansible相關配置

cat /etc/ansible/hosts
[webserver]
192.168.1.101
192.168.1.102

3.在/etc/ansible/roles中創建nginx目錄結構

[[email protected] roles]# mkdir -p/etc/ansible/roles/nginx/{defaults,files,handlers,meta,tasks,templates,vars}

整體目錄結構:

install_nginx.sh內容：

#!/bin/bash
#
yum -y install gcc openssl-devel pcre-devel zlib-devel
groupadd -r nginx
useradd -r -g nginx -s /bin/false -M nginx
cd /root/soft &&
tar zxf nginx-1.2.2.tar.gz && cd nginx-1.2.2 &&
./configure   --prefix=/usr/local/nginx   --sbin-path=/usr/sbin/nginx   --conf-path=/etc/nginx/nginx.conf   --error-log-path=/var/log/nginx/error.log   --http-log-path=/var/log/nginx/access.log   --pid-path=/var/run/nginx/nginx.pid    --lock-path=/var/lock/nginx.lock   --user=nginx   --group=nginx   --with-http_ssl_module   --with-http_flv_module   --with-http_stub_status_module   --with-http_gzip_static_module   --http-client-body-temp-path=/var/tmp/nginx/client/   --http-proxy-temp-path=/var/tmp/nginx/proxy/   --http-fastcgi-temp-path=/var/tmp/nginx/fcgi/   --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi   --http-scgi-temp-path=/var/tmp/nginx/scgi   --with-pcre
make && make install

main.yml內容:

- name: copy nginx-1.2.2.tar.gz to webservers
  copy: src=nginx-1.2.2.tar.gz dest=/root/soft/nginx-1.2.2.tar.gz
- name: copy install_nginx.sh to webservers
  copy: src=install_nginx.sh dest=/root/soft/install_nginx.sh
- name: install nginx
  shell: /bin/bash /root/soft/install_nginx.sh

webservice.yml內容:

- hosts: webserver
  remote_user: root
  roles:
  - nginx

4.執行ansible-playbook進行安裝:

[[email protected] files]# cd /etc/ansible/
[[email protected] ansible]# ls
ansible.cfg  hosts  roles  webservice.yml
[[email protected] ansible]# ansible-playbook webservice.yml

安裝成功!

5.測試

由於webserver兩個節點安裝完沒有啟動腳本，我們從ansible主機上拷貝一下啟動腳本：

[[email protected] ansible]# scp /etc/rc.d/init.d/nginx [email protected]:/etc/rc.d/init.d/
[[email protected] ansible]# scp /etc/rc.d/init.d/nginx [email protected]:/etc/rc.d/init.d/

以下為腳本內容:

#!/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/local/nginx/sbin/nginx"
prog=$(basename $nginx)
  
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‘ -`
   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

webserver中的兩臺機器啟動nginx服務：

ip:192.168.1.101中--

ip:192.168.1.102中--

ok,完成!

ansible自動化安裝nginx