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[经验分享] nginx源码编译和集群及高可用

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发表于 2018-11-16 09:17:06 | 显示全部楼层 |阅读模式
  实验环境
  server7      nginx主机
  server8      http
  server9      http
  server10      nginx
  [root@server7 ~]# tar zxf nginx-1.12.0.tar.gz
  [root@server7 ~]# ls
  nginx-1.12.0  nginx-1.12.0.tar.gz  varnish
  [root@server7 ~]# cd nginx-1.12.0
  [root@server7 nginx-1.12.0]# ls
  auto     CHANGES.ru  configure  html     man     src
  CHANGES  conf        contrib    LICENSE  README
  [root@server7 nginx-1.12.0]# cd src/core/
  [root@server7 core]# vim nginx.h  #去掉版本号
DSC0000.jpg

  [root@server7 core]# cd /root/nginx-1.12.0/auto/cc/
  [root@server7 cc]# vim gcc   注释debug
DSC0001.jpg

  [root@server7 cc]#  yum install -y pcre-devel openssl-devel zlib-devel gcc
  #安装依赖性
  [root@server7 nginx-1.12.0]# ./configure --prefix=/usr/local/nginx --with-http_ssl_module --with-http_stub_status_module
  [root@server7 nginx-1.12.0]# make && make install  #编译完成
  [root@server7 nginx-1.12.0]# cd /usr/local/nginx/sbin/
  [root@server7 sbin]# ls
  nginx
  [root@server7 sbin]# ./nginx
  查看端口:
DSC0002.jpg

  浏览器访问
DSC0003.jpg

  添加用户
  [root@server7 sbin]# useradd  -u 800 nginx

  [root@server7 sbin]#>  uid=800(nginx) gid=800(nginx) 组=800(nginx)
  [root@server7 sbin]# cd  /usr/local/nginx/conf/
  [root@server7 conf]# vim nginx.conf
DSC0004.jpg

  做软连接
  [root@server7 conf]# cd /usr/local/nginx/sbin/
  [root@server7 sbin]# ls
  nginx
  [root@server7 sbin]# ln -s /usr/local/nginx/sbin/nginx  /usr/local/sbin/
  [root@server7 sbin]# which nginx
  /usr/local/sbin/nginx

  [root@server7 sbin]# nginx -s>  [root@server7 ~]# vim /usr/local/nginx/conf/nginx.conf
DSC0005.jpg

  [root@server7 ~]# vim /etc/security/limits.conf
DSC0006.jpg

  [nginx@server7 ~]$ ulimit  -a

  core file>
  data seg>  scheduling priority             (-e) 0

  file>  pending signals                 (-i) 7812
  max locked memory       (kbytes, -l) 64

  max memory>  open files                      (-n) 65535

  pipe>  POSIX message queues     (bytes, -q) 819200
  real-time priority              (-r) 0

  stack>  cpu time               (seconds, -t) unlimited
  max user processes              (-u) 1024
  virtual memory          (kbytes, -v) unlimited
  file locks                      (-x) unlimited
  [root@server7 ~]# vim /usr/local/nginx/conf/nginx.conf
DSC0007.jpg

DSC0008.jpg

  制作证书
  [root@server7 ~]# cd /etc/pki/tls/certs/
  [root@server7 certs]# ls
  ca-bundle.crt  ca-bundle.trust.crt  make-dummy-cert  Makefile  renew-dummy-cert
  [root@server7 certs]# pwd
  /etc/pki/tls/certs
  [root@server7 certs]# make cert.pem
DSC0009.jpg

  [root@server7 tls]# mv -r cert.pem   /usr/local/nginx/conf/

  [root@server7 tls]# nginx  -s>  nginx: [emerg] SSL_CTX_use_PrivateKey_file("/usr/local/nginx/conf/cert.key") failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/usr/local/nginx/conf/cert.key','r') error:20074002:BIO routines:FILE_CTRL:system lib error:140B0002:SSL routines:SSL_CTX_use_PrivateKey_file:system lib)
  nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed
  原来配置文件证书中默认是cert.key 这里生成cert.pem 故改之
DSC00010.jpg

  [root@server7 tls]# nginx  -t
  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

  [root@server7 tls]# nginx  -s>  浏览器访问
DSC00011.jpg DSC00012.jpg DSC00013.jpg

  加模块
  [root@server7 tls]# cd  /usr/local/nginx/conf/
  [root@server7 conf]# vim nginx.conf
DSC00014.jpg


  [root@server7 conf]# nginx -s>  加入http虚拟主机
  [root@server7 conf]# vim nginx.conf
DSC00015.jpg DSC00016.jpg

  新建目录,重新加载服务
  [root@server7 conf]# mkdir   /www1
  [root@server7 conf]# cd /www1/
  [root@server7 www1]# ls
  [root@server7 www1]# vim index.html

  [root@server7 www1]# nginx  -s>  物理机加解析测试:
  [root@localhost ~]# curl www.cara.org
  cara1.............
  [root@server7 conf]# vim nginx.conf
DSC00017.jpg


  [root@server7 conf]# nginx -s>  物理机加解析测试:
  [root@localhost ~]# curl bbs.cara.org
  cara2.............
  #负载均衡
DSC00018.jpg


  [root@server7 conf]# nginx  -s >  server9.server8 安装httpd服务:
  [root@server8 ~]# vim /var/www/html/index.html
  [root@server8 ~]# cat /var/www/html/index.html
  server8
  [root@server9 html]# cat /var/www/html/index.html
  server 9
  物理机测试:
DSC00019.jpg

  可通过加入不同的参数,实现不同的需求
DSC00020.jpg

DSC00021.jpg

  高可用
  [root@server7 local]# scp -r nginx/  server10:/usr/local
  [root@server10 ~]# cd /usr/local/
  [root@server10 local]# ls
  bin  etc  games  include  lib  lib64  libexec  nginx  sbin  share  src
  [root@server10 local]# useradd -u 800 nginx

  [root@server10 local]#>  uid=800(nginx) gid=800(nginx) 组=800(nginx)
  server7.10均安装ricci服务(系统自带高可用包,需yum源添加),设置密码,设置为开机启动
  [root@server7 local]# yum install -y ricci
  [root@server7 local]# passwd ricci
  更改用户 ricci 的密码 。
  新的 密码:
  无效的密码: 它基于字典单词
  无效的密码: 过于简单
  重新输入新的 密码:
  passwd: 所有的身份验证令牌已经成功更新。
  [root@server7 local]# /etc/init.d/ricci  start
  Starting oddjobd:                                          [  OK  ]
  generating SSL certificates...  done
  Generating NSS database...  done
  启动 ricci:                                               [确定]
  [root@server7 local]# chkconfig  ricci on
  [root@server7 local]#  yum install -y luci
  [root@server7 local]# /etc/init.d/luci  start
  Adding following auto-detected host>server7' address, to the configuration of self-managed certificate/var/lib/luci/etc/cacert.config' (you can change them by editing /var/lib/luci/etc/cacert.config', removing the generated certificate/var/lib/luci/certs/host.pem' and restarting luci):
  (none suitable found, you can still do it manually as mentioned above)
  Generating a 2048 bit RSA private key
  writing new private key to '/var/lib/luci/certs/host.pem'
  Start luci...                                              [确定]
  Point your web browser to https://server7:8084 (or equivalent) to access luci
  [root@server7 local]# chkconfig  luci on
  浏览器访问,做好解析,用root用户进入,添加节点
DSC00022.jpg

  查看集群
DSC00023.jpg

  用物理机安装fence 控制断电。物理机安装:
  [root@localhost ~]# rpm -qa |grep fence
  libxshmfence-1.2-1.el7.x86_64
  fence-virtd-multicast-0.3.0-16.el7.x86_64
  fence-virtd-libvirt-0.3.0-16.el7.x86_64
  fence-virtd-0.3.0-16.el7.x86_64
  [root@localhost ~]# fence_virtd -c
  Module search path [/usr/lib64/fence-virt]:
  Available backends:
  libvirt 0.1
  Available listeners:
  multicast 1.2
  Listener modules are responsible for accepting requests
  from fencing clients.
  Listener module [multicast]:
  The multicast listener module is designed for use environments
  where the guests and hosts may communicate over a network using
  multicast.
  The multicast address is the address that a client will use to
  send fencing requests to fence_virtd.
  Multicast IP Address [225.0.0.12]:
  Using ipv4 as family.
  Multicast IP Port [1229]:
  Setting a preferred interface causes fence_virtd to listen only
  on that interface.  Normally, it listens on all interfaces.
  In environments where the virtual machines are using the host
  machine as a gateway, this must be set (typically to virbr0).
  Set to 'none' for no interface.
  Interface [virbr0]: br0
  The key file is the shared key information which is used to
  authenticate fencing requests.  The contents of this file must
  be distributed to each physical host and virtual machine within
  a cluster.
  Key File [/etc/cluster/fence_xvm.key]:
  Backend modules are responsible for routing requests to
  the appropriate hypervisor or management layer.
  Backend module [libvirt]:
  Configuration complete.
  === Begin Configuration ===
  backends {
  libvirt {
  uri = "qemu:///system";
  }
  }
  listeners {
  multicast {
  port = "1229";
  family = "ipv4";
  interface = "br0";
  address = "225.0.0.12";
  key_file = "/etc/cluster/fence_xvm.key";
  }
  }
  fence_virtd {
  module_path = "/usr/lib64/fence-virt";
  backend = "libvirt";
  listener = "multicast";
  }
  === End Configuration ===
  Replace /etc/fence_virt.conf with the above [y/N]? y
  [root@localhost ~]# mkdir -p /etc/cluster/
  [root@localhost ~]# cd /etc/cluster/
  [root@localhost cluster]# dd if=/dev/urandom of=/etc/cluster/fence_xvm.key bs=128 count=1
  记录了1+0 的读入
  记录了1+0 的写出
  128字节(128 B)已复制,0.000668548 秒,191 kB/秒
  [root@localhost cluster]# ls
  fence_xvm.key
  [root@localhost cluster]# scp fence_xvm.key  server7:/etc/cluster/
  root@server7's password:
  fence_xvm.key                                 100%  128     0.1KB/s   00:00
  [root@localhost cluster]# scp fence_xvm.key  server10:/etc/cluster/
  root@server10's password:
  fence_xvm.key                                 100%  128     0.1KB/s   00:00
  建立fence:
DSC00024.jpg

  回到 Nodes,并选择 server7
DSC00025.jpg

DSC00026.jpg

DSC00027.jpg

  粘贴uuid
DSC00028.jpg

  server10同server7
DSC00029.jpg

DSC00030.jpg

DSC00031.jpg

  [root@server7 cluster]# cd
  [root@server7 ~]# vim  /etc/init.d/nginx
  #!/bin/sh
  #

nginx        Startup script for nginx
  #

chkconfig: - 85 15

processname: nginx

config: /usr/local/nginx/conf/nginx/nginx.conf

pidfile: /usr/local/nginx/logs/nginx.pid

description: nginx is an HTTP and reverse proxy server
  #

BEGIN INIT INFO

Provides: nginx

Required-Start: $local_fs $remote_fs $network

Required-Stop: $local_fs $remote_fs $network

Default-Start: 2 3 4 5

Default-Stop: 0 1 6

Short-Description: start and stop nginx

END INIT INFO

Source function library.
  . /etc/rc.d/init.d/functions
  if [ -L $0 ]; then
  initscript=/bin/readlink -f $0
  else
  initscript=$0
  fi
  #sysconfig=/bin/basename $initscript
  #if [ -f /etc/sysconfig/$sysconfig ]; then

. /etc/sysconfig/$sysconfig
  #fi
  nginx=${NGINX-/usr/local/nginx/sbin/nginx}
  prog=/bin/basename $nginx
  conffile=${CONFFILE-/usr/local/nginx/conf/nginx.conf}
  lockfile=${LOCKFILE-/var/lock/subsys/nginx}
  pidfile=${PIDFILE-/usr/local/nginx/logs/nginx.pid}
  SLEEPMSEC=${SLEEPMSEC-200000}
  UPGRADEWAITLOOPS=${UPGRADEWAITLOOPS-5}
  RETVAL=0
  start() {
  echo -n $"Starting $prog: "
  

daemon --pidfile=${pidfile} ${nginx} -c ${conffile}  
RETVAL=$?
  
echo
  
[ $RETVAL = 0 ] && touch ${lockfile}
  
return $RETVAL
  

  }
  stop() {
  echo -n $"Stopping $prog: "
  killproc -p ${pidfile} ${prog}
  RETVAL=$?
  echo
  [ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}
  }
  reload() {
  echo -n $"Reloading $prog: "
  killproc -p ${pidfile} ${prog} -HUP
  RETVAL=$?
  echo
  }
  upgrade() {
  oldbinpidfile=${pidfile}.oldbin
  

configtest -q || return  
echo -n $"Starting new master $prog: "
  
killproc -p ${pidfile} ${prog} -USR2
  
echo
  

  
for i in `/usr/bin/seq $UPGRADEWAITLOOPS`; do
  /bin/usleep $SLEEPMSEC
  if [ -f ${oldbinpidfile} -a -f ${pidfile} ]; then
  echo -n $"Graceful shutdown of old $prog: "
  killproc -p ${oldbinpidfile} ${prog} -QUIT
  RETVAL=$?
  echo
  return
  fi
  
done
  

  
echo $"Upgrade failed!"
  
RETVAL=1
  

  }
  configtest() {
  if [ "$#" -ne 0 ] ; then
  case "$1" in
  -q)
  FLAG=$1
  ;;
  *)
  ;;
  esac
  shift
  fi
  ${nginx} -t -c ${conffile} $FLAG
  RETVAL=$?
  return $RETVAL
  }
  rh_status() {
  status -p ${pidfile} ${nginx}
  }

See how we were called.
  case "$1" in
  start)
  rh_status >/dev/null 2>&1 && exit 0
  start
  ;;
  stop)
  stop
  ;;
  status)
  rh_status
  RETVAL=$?
  ;;
  restart)
  configtest -q || exit $RETVAL
  stop
  start
  ;;
  upgrade)
  rh_status >/dev/null 2>&1 || exit 0
  upgrade
  ;;
  condrestart|try-restart)
  if rh_status >/dev/null 2>&1; then
  stop
  start
  fi
  ;;
  force-reload|reload)
  reload
  ;;
  configtest)
  configtest
  ;;
  *)
  echo $"Usage: $prog {start|stop|restart|condrestart|try-restart|force-reload|upgrade|reload|status|help|configtest}"
  RETVAL=2
  esac
  exit $RETVAL
  [root@server7 ~]# chmod +x /etc/init.d/nginx
  [root@server7 ~]# /etc/init.d/nginx  start
  正在启动 nginx:                                           [确定]
  [root@server7 init.d]# scp nginx  server10:/etc/init.d/
DSC00032.jpg

DSC00033.jpg DSC00034.jpg DSC00035.jpg

  [root@server7 ~]# clustat
  Cluster Status for luci @ Wed Jul  4 22:00:02 2018
  Member Status: Quorate

  Member Name                            >  server7                                     1 Online, Local, rgmanager
  server10                                    2 Online, rgmanager
  Service Name                   Owner (Last)                   State
  service:nginx                  server7                        started
  [root@server7 ~]# clusvcadm  -rnginx -m server10

  Trying to>  service:nginx is now running on server10
  ##将服务转移到server10上     粗体nginx为建立时的组名
  [root@server7 ~]# clustat
  Cluster Status for luci @ Wed Jul  4 22:07:31 2018
  Member Status: Quorate

  Member Name                            >  server7                                     1 Online, Local, rgmanager
  server10                                    2 Online, rgmanager
  Service Name                   Owner (Last)                   State
  service:nginx                  server10                       started
  网页来回测试
DSC00036.jpg

  [root@server10 ~]# ip addr
  1: lo:  mtu 16436 qdisc noqueue state UNKNOWN
  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
  inet 127.0.0.1/8 scope host lo
  inet6 ::1/128 scope host
  valid_lft forever preferred_lft forever
  2: eth0:  mtu 1500 qdisc pfifo_fast state UP qlen 1000
  link/ether 52:54:00:6d:4b:07 brd ff:ff:ff:ff:ff:ff
  inet 172.25.35.10/24 brd 172.25.35.255 scope global eth0
  inet 172.25.35.200/24 scope global secondary eth0
  inet6 fe80::5054:ff:fe6d:4b07/64 scope link
  valid_lft forever preferred_lft forever
  私有vip地址会随master漂移
  ##使内核崩溃,测试fence是否生效
  [root@server10 ~]# echo c > /proc/sysrq-trigger  自动回到7上
  [root@server7 ~]# clustat
  Cluster Status for luci @ Wed Jul  4 22:22:25 2018
  Member Status: Quorate

  Member Name                            >  server7                                     1 Online, Local, rgmanager
  server10                                    2 Online, rgmanager
  Service Name                   Owner (Last)                   State
  service:nginx                  server7                        started
  [root@server7 ~]#  ip ad
  1: lo:  mtu 16436 qdisc noqueue state UNKNOWN
  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
  inet 127.0.0.1/8 scope host lo
  inet6 ::1/128 scope host
  valid_lft forever preferred_lft forever
  2: eth0:  mtu 1500 qdisc pfifo_fast state UP qlen 1000
  link/ether 52:54:00:09:2d:4d brd ff:ff:ff:ff:ff:ff
  inet 172.25.35.7/24 brd 172.25.35.255 scope global eth0
  inet 172.25.35.200/24 scope global secondary eth0
  inet6 fe80::5054:ff:fe09:2d4d/64 scope link
  valid_lft forever preferred_lft forever
  vip地址也漂移过来了



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