1.安装ansible
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参考:运维自动化工具之Ansible
2.ansible相关配置
cat /etc/ansible/hosts
[webserver]
192.168.1.101
192.168.1.102
3.在/etc/ansible/roles中创建nginx目录结构
[root@Centos roles]# mkdir -p/etc/ansible/roles/nginx/{defaults,files,handlers,meta,tasks,templates,vars}
整体目录结构:
install_nginx.sh内容：
#!/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内容:
- 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内容:
- hosts: webserver
remote_user: root
roles:
- nginx
4.执行ansible-playbook进行安装:
[root@Centos files]# cd /etc/ansible/
[root@Centos ansible]# ls
ansible.cfg hosts roles webservice.yml
[root@Centos ansible]# ansible-playbook webservice.yml
安装成功!
5.测试
由于webserver两个节点安装完没有启动脚本，我们从ansible主机上拷贝一下启动脚本：
[root@Centos ansible]# scp /etc/rc.d/init.d/nginx root@192.168.1.101:/etc/rc.d/init.d/
[root@Centos ansible]# scp /etc/rc.d/init.d/nginx root@192.168.1.102:/etc/rc.d/init.d/
以下为脚本内容:
#!/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中的两台机器启动nginx服务：
ip:192.168.1.101中--
ip:192.168.1.102中--
ok,完成!
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