saltstack自动化运维系列⑧SaltStack实践配置管理安装nginx-1.10.3

saltstack自动化运维系列⑧SaltStack实践配置管理安装nginx-1.10.3

安装nginx-1.10.3.tar.gz

# mkdir -p /srv/salt/prod/pkg /srv/salt/prod/nginx /srv/salt/prod/nginx/files
# cd /srv/salt/prod/pkg

1.初始化nginx相关配置文件
①下载nginx-1.10.3.tar.gz上传到/srv/salt/prod/nginx/files目录
②配置文件
# cat /srv/salt/prod/nginx/files/nginx.conf 

user www;
worker_processes 16;
error_log logs/error.log error;
worker_rlimit_nofile 30000;
pid logs/nginx.pid;
events {
use epoll;
worker_connections 65535;
}

http {
include mime.types;
default_type application/octet-stream;
sendfile on;
tcp_nopush on;
underscores_in_headers on;
keepalive_timeout 10;
send_timeout 60;
include /usr/local/nginx/conf/vhost/*.conf;
server {
listen 8080;
server_name 127.0.0.1;
location /nginx_status {
stub_status on;
access_log off;
allow 127.0.0.1;
deny all;
}
}
}

③服务管理脚本
# cat nginx-init

#!/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' -`
   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: "
    $nginx -s reload
    RETVAL=$?
    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

2.编写依赖包安装
vim /srv/salt/prod/pkg/pkg-init.sls

pkg-init:
pkg.installed:
- names:
- gcc
- gcc-c++
- glibc
- make
- autoconf
- openssl
- openssl-devel
- pcre
- pcre-devel
- glib
- glib-devel

3.用户添加模块
# mkdir /srv/salt/prod/user
# vim /srv/salt/prod/user/www.sls
www-user-group:
group.present:
- name: www
- gid: 1000

user.present:
- name: www
- fullname: www
- shell: /sbin/nologin
- uid: 1000
- gid: 1000

4.编写nginx状态模块
# cd /srv/salt/prod/nginx
vim /srv/salt/prod/nginx/install.sls

include:
- pkg.pkg-init
- user.www
nginx-source-install:
file.managed:
- name: /usr/local/src/nginx-1.10.3.tar.gz
- source: salt://nginx/files/nginx-1.10.3.tar.gz
- user: root
- group: root
- mode: 755
cmd.run:
- name: cd /usr/local/src && tar zxf nginx-1.10.3.tar.gz && cd nginx-1.10.3 && ./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_ssl_module --with-http_stub_status_module --with-file-aio --with-http_dav_module --with-pcre && make && make install && chown -R www:www /usr/local/nginx
- unless: test -d /usr/local/nginx
- require:
- user: www-user-group
- file: nginx-source-install
- pkg: pkg-init

服务模块
# vim /srv/salt/prod/nginx/service.sls 
include:
- nginx.install

nginx-init:
file.managed:
- name: /etc/init.d/nginx
- source: salt://nginx/files/nginx-init
- mode: 755
- user: root
- group: root
- require:
- cmd: nginx-source-install
cmd.run:
- name: chkconfig --add nginx
- unless: chkconfig --list | grep nginx
- require:
- file: nginx-init

/usr/local/nginx/conf/nginx.conf:
file.managed:
- source: salt://nginx/files/nginx.conf
- user: www
- group: www
- mode: 644

nginx-service:
file.directory:
- name: /usr/local/nginx/conf/vhost
- require:
- cmd: nginx-source-install
service.running:
- name: nginx
- enable: True
- reload: True
- require:
- cmd: nginx-init
- watch:
- file: /usr/local/nginx/conf/nginx.conf

执行配置，至此nginx服务已安装完毕：
salt '*' state.sls nginx.service env=prod