CentOS 6.5环境使用ansible剧本自动化部署Corosync + pacemaker环境及corosync常用配置详解

环境说明：

192.168.8.39 node2.chinasoft.com

192.168.8.42 node4.chinasoft.com

192.168.8.40 ansible管理服务器

192.168.8.77 VIP

192.168.8.20 nfs服务器

1、双机互信需要设置好，hosts文件需要解析好，时间要同步，配置好yum源

双击互信及Hosts文件配置，参考：http://blog.csdn.net/reblue520/article/details/51213030

最好使用centos6.5自带光盘，关于将光盘制作成本地httpd yum源可参考：http://blog.csdn.net/reblue520/article/details/51164294

2、准备好自动化安装包

定义ansible的管理组：

/etc/ansible/hosts

[corosync]

node2.chinasoft.com

node4.chinasoft.com

安装apache软件

# ansible corosync -m yum -a "name=httpd state=present"

在8.20上安装nfs文件服务器，并分别挂载在Node2和node4的/web/htdocs下

# yum -y install nfs-utils rpcbind

# mkdir /sharestore

# vi /etc/exports

/sharestore  *(rw,sync,no_root_squash)

启动服务

# service rpcbind restart

# service nfs restart

让服务随机启动

# chkconfig nfs on

# chkconfig rpcbind on

在node2和node4上分别执行挂载

# mount -t nfs 192.168.8.20:/sharestore /web/htdocs

# echo "<h1> nfs system server </h1>" /web/htdocs/index.html

自动安装集群服务的剧本目录：

# cd /ansible/

# ls

corosync

# cd corosync/

# ls

conf  corosync.yaml  packages

剧本内容：

# vim corosync.yaml

- hosts: corosync

remote_user: root

vars:

crmsh: crmsh-1.2.6-4.el6.x86_64.rpm

pssh: pssh-2.3.1-2.el6.x86_64.rpm

tasks:

- name: corosync installing

yum: name=corosync state=present

- name: pacemaker installing

yum: name=pacemaker state=present

- name: crmsh rpm packages

copy: src=/ansible/corosync/packages/{{ crmsh }} dest=/tmp/{{ crmsh }}

- name: pssh rpm packages

copy: src=/ansible/corosync/packages/{{ pssh }} dest=/tmp/{{ pssh }}

- name: crmsh installing

command: yum -y install /tmp/{{ crmsh }} /tmp/{{ pssh }}

- name: authkey configure file

copy: src=/ansible/corosync/conf/authkey dest=/etc/corosync/authkey

- name: authkey mode 400

file: path=/etc/corosync/authkey mode=400

notify:

- restart corosync

- name: corosync.conf configure file

copy: src=/ansible/corosync/conf/corosync.conf dest=/etc/corosync/corosync.conf

tags:

- conf

notify:

- restart corosync

- name: ensure the corosync service startup on boot

service: name=corosync state=started enabled=yes

handlers:

- name: restart corosync

service: name=corosync state=restarted

- hosts: corosync
  remote_user: root
  vars:
    crmsh: crmsh-1.2.6-4.el6.x86_64.rpm
    pssh: pssh-2.3.1-2.el6.x86_64.rpm
  tasks:
    - name: corosync installing
      yum: name=corosync state=present
    - name: pacemaker installing
      yum: name=pacemaker state=present
    - name: crmsh rpm packages
      copy: src=/ansible/corosync/packages/{{ crmsh }} dest=/tmp/{{ crmsh }}
    - name: pssh rpm packages
      copy: src=/ansible/corosync/packages/{{ pssh }} dest=/tmp/{{ pssh }}
    - name: crmsh installing
      command: yum -y install /tmp/{{ crmsh }} /tmp/{{ pssh }}
    - name: authkey configure file
      copy: src=/ansible/corosync/conf/authkey dest=/etc/corosync/authkey
    - name: authkey mode 400
      file: path=/etc/corosync/authkey mode=400
      notify:
        - restart corosync
    - name: corosync.conf configure file
      copy: src=/ansible/corosync/conf/corosync.conf dest=/etc/corosync/corosync.conf
      tags:
        - conf
      notify:
        - restart corosync
    - name: ensure the corosync service startup on boot
      service: name=corosync state=started enabled=yes
  handlers:
    - name: restart corosync
      service: name=corosync state=restarted

执行剧本

# ansible-playbook corosync.yaml

报错：

TASK: [crmsh rpm packages] ****************************************************

failed: [node2.chinasoft.com] => {"checksum": "45b4cbe3bd441d9a02cbcbc3d11091d2ad4388fa", "failed": true}

msg: Aborting, target uses selinux but python bindings (libselinux-python) aren‘t installed!

failed: [node4.chinasoft.com] => {"checksum": "45b4cbe3bd441d9a02cbcbc3d11091d2ad4388fa", "failed": true}

msg: Aborting, target uses selinux but python bindings (libselinux-python) aren‘t installed!

FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************

to retry, use: --limit @/root/corosync.yaml.retry

node2.chinasoft.com        : ok=3    changed=0    unreachable=0    failed=1

node4.chinasoft.com        : ok=3    changed=0    unreachable=0    failed=1

处理：在node2和node4上安装libselinux-python包

# ansible corosync -a "yum install -y libselinux-python"

在其中的Node2上执行crm status查看集群是否配置成功

# crm status

Last updated: Mon Apr 25 17:51:10 2016

Last change: Mon Apr 25 17:43:35 2016 via crmd on node4.chinasoft.com

Stack: classic openais (with plugin)

Current DC: node4.chinasoft.com - partition with quorum

Version: 1.1.10-14.el6-368c726

2 Nodes configured, 2 expected votes

0 Resources configured

Online: [ node2.chinasoft.com node4.chinasoft.com ]

3、常用配置

# crm configure

crm(live)configure# show

node node2.chinasoft.com

node node4.chinasoft.com

property $id="cib-bootstrap-options" \

dc-version="1.1.10-14.el6-368c726" \

cluster-infrastructure="classic openais (with plugin)" \

expected-quorum-votes="2"

# 禁用stonith-enabled

crm(live)configure# property stonith-enabled=false

crm(live)configure# verify

# 忽略法定票数限制

crm(live)configure# property no-quorum-policy=ignore

crm(live)configure# verify

crm(live)configure# commit

# 配置虚拟IP为8.77

crm(live)configure# primitive webip ocf:heartbeat:IPaddr params ip=192.168.8.77
crm(live)configure# verify
crm(live)configure# commit
crm(live)configure# show
node node2.chinasoft.com
node node4.chinasoft.com
primitive webip ocf:heartbeat:IPaddr params ip="192.168.8.77"
property $id="cib-bootstrap-options" dc-version="1.1.10-14.el6-368c726" cluster-infrastructure="classic openais (with plugin)" expected-quorum-votes="2" stonith-enabled="false" no-quorum-policy="ignore"

定义web资源

crm(live)configure# primitive webserver lsb:httpd
crm(live)configure# verify
crm(live)configure# commit
crm(live)configure# show
node node2.chinasoft.com
node node4.chinasoft.com
primitive webip ocf:heartbeat:IPaddr params ip="192.168.8.77"
primitive webserver lsb:httpd
property $id="cib-bootstrap-options" dc-version="1.1.10-14.el6-368c726" cluster-infrastructure="classic openais (with plugin)" expected-quorum-votes="2" stonith-enabled="false" no-quorum-policy="ignore"

#定义组

crm(live)configure# group webservice webip webserver
crm(live)configure# verify
crm(live)configure# commit
crm(live)configure# show
node node2.chinasoft.com
node node4.chinasoft.com
primitive webip ocf:heartbeat:IPaddr params ip="192.168.8.77"
primitive webserver lsb:httpd
group webservice webip webserver
property $id="cib-bootstrap-options" dc-version="1.1.10-14.el6-368c726" cluster-infrastructure="classic openais (with plugin)" expected-quorum-votes="2" stonith-enabled="false" no-quorum-policy="ignore"

将node2配置为备用节点

# standby node2.chinasoft.com
crm(live)node# cd
crm(live)# status
Last updated: Mon Apr 25 19:11:07 2016
Last change: Mon Apr 25 19:11:04 2016 via crm_attribute on node2.chinasoft.com
Stack: classic openais (with plugin)
Current DC: node4.chinasoft.com - partition with quorum
Version: 1.1.10-14.el6-368c726
2 Nodes configured, 2 expected votes
2 Resources configured

Node node2.chinasoft.com: standby
Online: [ node4.chinasoft.com ]

 Resource Group: webservice
     webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com
     webserver (lsb:httpd):Started node4.chinasoft.com

让node2重新上线，主节点仍然是node4

# crm node online node2.chinasoft.com
# crm status
Last updated: Mon Apr 25 19:13:09 2016
Last change: Mon Apr 25 19:13:06 2016 via crm_attribute on node4.chinasoft.com
Stack: classic openais (with plugin)
Current DC: node4.chinasoft.com - partition with quorum
Version: 1.1.10-14.el6-368c726
2 Nodes configured, 2 expected votes
2 Resources configured

Online: [ node2.chinasoft.com node4.chinasoft.com ]

 Resource Group: webservice
     webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com
     webserver (lsb:httpd):Started node4.chinasoft.com

删除webservice组

# crm configure
crm(live)configure# stop webservice
ERROR: syntax: stop webservice
crm(live)configure# cd
crm(live)# resource
crm(live)resource# stop webservice
crm(live)resource# status webservice
resource webservice is NOT running
crm(live)resource# cd
crm(live)# configure
crm(live)configure# delete webservice
crm(live)configure# show
node node2.chinasoft.com attributes standby="off"
node node4.chinasoft.com
primitive webip ocf:heartbeat:IPaddr params ip="192.168.8.77"
primitive webserver lsb:httpd
property $id="cib-bootstrap-options" dc-version="1.1.10-14.el6-368c726" cluster-infrastructure="classic openais (with plugin)" expected-quorum-votes="2" stonith-enabled="false" no-quorum-policy="ignore"
crm(live)configure# commit

定义排序约束关系，即服务绑定在同一资源上运行

crm(live)# configure
crm(live)configure# colocation webserver_with_webip inf: webserver webip
crm(live)configure# show
node node2.chinasoft.com attributes standby="off"
node node4.chinasoft.com
primitive webip ocf:heartbeat:IPaddr params ip="192.168.8.77"
primitive webserver lsb:httpd
colocation webserver_with_webip inf: webserver webip
property $id="cib-bootstrap-options" dc-version="1.1.10-14.el6-368c726" cluster-infrastructure="classic openais (with plugin)" expected-quorum-votes="2" stonith-enabled="false" no-quorum-policy="ignore"
crm(live)configure# show xml
<?xml version="1.0" ?>
<cib num_updates="9" dc-uuid="node4.chinasoft.com" update-origin="node2.chinasoft.com" crm_feature_set="3.0.7" validate-with="pacemaker-1.2" update-client="cibadmin" epoch="13" admin_epoch="0" cib-last-written="Mon Apr 25 19:17:30 2016" have-quorum="1">
  <configuration>
    <crm_config>
      <cluster_property_set id="cib-bootstrap-options">
        <nvpair id="cib-bootstrap-options-dc-version" name="dc-version" value="1.1.10-14.el6-368c726"/>
        <nvpair id="cib-bootstrap-options-cluster-infrastructure" name="cluster-infrastructure" value="classic openais (with plugin)"/>
        <nvpair id="cib-bootstrap-options-expected-quorum-votes" name="expected-quorum-votes" value="2"/>
        <nvpair name="stonith-enabled" value="false" id="cib-bootstrap-options-stonith-enabled"/>
        <nvpair name="no-quorum-policy" value="ignore" id="cib-bootstrap-options-no-quorum-policy"/>
      </cluster_property_set>
    </crm_config>
    <nodes>
      <node id="node2.chinasoft.com" uname="node2.chinasoft.com">
        <instance_attributes id="nodes-node2.chinasoft.com">
          <nvpair id="nodes-node2.chinasoft.com-standby" name="standby" value="off"/>
        </instance_attributes>
      </node>
      <node id="node4.chinasoft.com" uname="node4.chinasoft.com"/>
    </nodes>
    <resources>
      <primitive id="webip" class="ocf" provider="heartbeat" type="IPaddr">
        <instance_attributes id="webip-instance_attributes">
          <nvpair name="ip" value="192.168.8.77" id="webip-instance_attributes-ip"/>
        </instance_attributes>
      </primitive>
      <primitive id="webserver" class="lsb" type="httpd"/>
    </resources>
    <constraints>
      <rsc_colocation id="webserver_with_webip" score="INFINITY" rsc="webserver" with-rsc="webip"/>
    </constraints>
  </configuration>
</cib>

定义顺序关系

crm(live)configure# order webip_before_webserver mandatory: webip webserver

crm(live)configure# show xml

crm(live)configure# verify

crm(live)configure# commit

crm(live)configure# show

node node2.chinasoft.com \

attributes standby="off"

node node4.chinasoft.com

primitive webip ocf:heartbeat:IPaddr \

params ip="192.168.8.77"

primitive webserver lsb:httpd

colocation webserver_with_webip inf: webserver webip

order webip_before_webserver inf: webip webserver

property $id="cib-bootstrap-options" \

dc-version="1.1.10-14.el6-368c726" \

cluster-infrastructure="classic openais (with plugin)" \

expected-quorum-votes="2" \

stonith-enabled="false" \

no-quorum-policy="ignore"

定义资源粘性，更倾向于运行在node4.chinasoft.com节点上

<pre name="code" class="plain">crm(live)configure# location webip_on_node4 webip 200: node4.chinasoft.com
crm(live)configure# verify
crm(live)configure# commit
crm(live)configure# cd
crm(live)# status
Last updated: Mon Apr 25 19:32:59 2016
Last change: Mon Apr 25 19:32:57 2016 via cibadmin on node2.chinasoft.com
Stack: classic openais (with plugin)
Current DC: node4.chinasoft.com - partition with quorum
Version: 1.1.10-14.el6-368c726
2 Nodes configured, 2 expected votes
2 Resources configured

Online: [ node2.chinasoft.com node4.chinasoft.com ]

 webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com
 webserver (lsb:httpd):Started node4.chinasoft.com


将node4调整为备用节点，可以看到node2变为主节点，重新上线node4发现主节点又回到了node4上


crm(live)# node


crm(live)node# standby node4.chinasoft.com


crm(live)node# cd


crm(live)# show


ERROR: syntax: show


crm(live)# status


Last updated: Mon Apr 25 19:38:45 2016


Last change: Mon Apr 25 19:38:37 2016 via crm_attribute on node2.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


2 Resources configured


Node node4.chinasoft.com: standby


Online: [ node2.chinasoft.com ]


webip (ocf::heartbeat:IPaddr):Started node2.chinasoft.com


webserver (lsb:httpd):Started node2.chinasoft.com


crm(live)# node


crm(live)node# online node4.chinasoft.com


crm(live)node# cd


crm(live)# status


Last updated: Mon Apr 25 19:40:20 2016


Last change: Mon Apr 25 19:39:02 2016 via crm_attribute on node2.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


2 Resources configured


Online: [ node2.chinasoft.com node4.chinasoft.com ]


webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com


webserver (lsb:httpd):Started node4.chinasoft.com


删除资源的方法


# crm resource


crm(live)resource# stop vip


crm(live)resource# stop webip


crm(live)resource# stop webserver


crm(live)resource# cd


crm(live)# configure


crm(live)configure# delete


cib-bootstrap-options    node4.chinasoft.com      webip                    webip_on_node4           webserver_with_webip


node2.chinasoft.com      vip                      webip_before_webserver   webserver


crm(live)configure# delete vip


crm(live)configure# delete webserver


crm(live)configure# delete webip


crm(live)configure# verify


crm(live)configure# commit


crm(live)configure# cd


crm(live)# status


Last updated: Tue Apr 26 15:56:37 2016


Last change: Tue Apr 26 15:56:33 2016 via cibadmin on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


0 Resources configured


Online: [ node2.chinasoft.com node4.chinasoft.com ]


crm(live)# configure


crm(live)configure# show


node node2.chinasoft.com \


attributes standby="off"


node node4.chinasoft.com \


attributes standby="off"


property $id="cib-bootstrap-options" \


dc-version="1.1.10-14.el6-368c726" \


cluster-infrastructure="classic openais (with plugin)" \


expected-quorum-votes="2" \


stonith-enabled="false" \


no-quorum-policy="ignore" \


last-lrm-refresh="1461657233"


这样定义代表集群中每一个资源的默认权重为100


crm(live)configure# rsc_defaults resource-stickiness=100


crm(live)configure# verify


crm(live)configure# commit


定义webstore、webip并添加到webservice组中


crm(live)configure# primitive webstore ocf:heartbeat:Filesystem params device="192.168.8.20:/sharestore" directory="/web/htdocs" fstype="nfs" op monitor interval=20s timeout=40s op start timeout=60s op stop timeout=60s on-fail=restart


crm(live)configure# verify


crm(live)configure# primitive webserver lsb:httpd op monitor interval=30s timeout=20s on-fail=restart


crm(live)configure# verify


crm(live)configure# primitive webip ocf:heartbeat:IPaddr params ip=192.168.8.77 op monitor interval=30s timeout=20s on-fail=restart


crm(live)configure# verify


crm(live)configure# group webservice webip webstore webserver


crm(live)configure# verify


crm(live)configure# commit


crm(live)configure# show


node node2.chinasoft.com \


attributes standby="off"


node node4.chinasoft.com \


attributes standby="off"


primitive webip ocf:heartbeat:IPaddr \


params ip="192.168.8.77" \


op monitor interval="30s" timeout="20s" on-fail="restart"


primitive webserver lsb:httpd \


op monitor interval="30s" timeout="20s" on-fail="restart"


primitive webstore ocf:heartbeat:Filesystem \


params device="192.168.8.20:/sharestore" directory="/web/htdocs" fstype="nfs" \


op monitor interval="20s" timeout="40s" \


op start timeout="60s" interval="0" \


op stop timeout="60s" on-fail="restart" interval="0"


group webservice webip webstore webserver


property $id="cib-bootstrap-options" \


dc-version="1.1.10-14.el6-368c726" \


cluster-infrastructure="classic openais (with plugin)" \


expected-quorum-votes="2" \


stonith-enabled="false" \


no-quorum-policy="ignore" \


last-lrm-refresh="1461657233"


rsc_defaults $id="rsc-options" \


resource-stickiness="100"


定义先后顺序


crm(live)configure# order webip_before_webstore_before_webserver mandatory: webip webstore webserver


crm(live)configure# show xml






crm(live)# status


Last updated: Tue Apr 26 16:48:20 2016


Last change: Tue Apr 26 16:47:17 2016 via cibadmin on node2.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


3 Resources configured


Online: [ node2.chinasoft.com node4.chinasoft.com ]


Resource Group: webservice


webip (ocf::heartbeat:IPaddr):Started node2.chinasoft.com


webstore (ocf::heartbeat:Filesystem):Started node2.chinasoft.com


webserver (lsb:httpd):Started node2.chinasoft.com


[[email protected] ~]# crm node online node4.chinasoft.com


[[email protected] ~]# crm status


Last updated: Tue Apr 26 16:53:15 2016


Last change: Tue Apr 26 16:53:13 2016 via crm_attribute on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


3 Resources configured


Online: [ node2.chinasoft.com node4.chinasoft.com ]


Resource Group: webservice


webip (ocf::heartbeat:IPaddr):Started node2.chinasoft.com


webstore (ocf::heartbeat:Filesystem):Started node2.chinasoft.com


webserver (lsb:httpd):Started node2.chinasoft.com


将node2置为standby则node4上线顶替


[[email protected] ~]# crm status


Last updated: Tue Apr 26 16:53:20 2016


Last change: Tue Apr 26 16:53:13 2016 via crm_attribute on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


3 Resources configured


Online: [ node2.chinasoft.com node4.chinasoft.com ]


Resource Group: webservice


webip (ocf::heartbeat:IPaddr):Started node2.chinasoft.com


webstore (ocf::heartbeat:Filesystem):Started node2.chinasoft.com


webserver (lsb:httpd):Started node2.chinasoft.com


[[email protected] ~]# crm node standby node2.chinasoft.com


[[email protected] ~]# crm status


Last updated: Tue Apr 26 16:53:50 2016


Last change: Tue Apr 26 16:53:47 2016 via crm_attribute on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


3 Resources configured


Node node2.chinasoft.com: standby


Online: [ node4.chinasoft.com ]


Resource Group: webservice


webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com


webstore (ocf::heartbeat:Filesystem):Started node4.chinasoft.com


webserver (lsb:httpd):Started node4.chinasoft.com


pcs命令的使用：


环境准备：


删除之前建立的webip、webstore、webservice


crm(live)resource# stop webip


crm(live)resource# stop webstore


crm(live)resource# stop webservice


crm(live)resource# status


Resource Group: webservice


webip (ocf::heartbeat:IPaddr):Stopped


webstore (ocf::heartbeat:Filesystem):Stopped


webserver (lsb:httpd):Stopped


crm(live)resource# cd


crm(live)# configure


crm(live)configure# delete webservice


crm(live)configure# delete webip


INFO: constraint order:webip_before_webstore_before_webserver updated


crm(live)configure# delete webstore


crm(live)configure# show


node node2.chinasoft.com \


attributes standby="on"


node node4.chinasoft.com \


attributes standby="off"


property $id="cib-bootstrap-options" \


dc-version="1.1.10-14.el6-368c726" \


cluster-infrastructure="classic openais (with plugin)" \


expected-quorum-votes="2" \


stonith-enabled="false" \


no-quorum-policy="ignore" \


last-lrm-refresh="1461664392"


rsc_defaults $id="rsc-options" \


resource-stickiness="100"


crm(live)configure# verify


crm(live)configure# commit


安装


# ansible corosync -m yum -a "name=pcs state=present"


设置vip


# pcs resource create webip ocf:heartbeat:IPaddr ip=192.168.8.77 op monitor interval=30s timeout=20s


[[email protected] ~]# pcs status


Cluster name:


Last updated: Tue Apr 26 17:58:13 2016


Last change: Tue Apr 26 17:58:16 2016 via cibadmin on node2.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


1 Resources configured


Node node2.chinasoft.com: standby


Online: [ node4.chinasoft.com ]


Full list of resources:


webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com


在node4上可以看到vip已经生成


[[email protected] ~]# ip addr show


1: lo: <LOOPBACK,UP,LOWER_UP> 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: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000


link/ether 00:0c:29:eb:42:3e brd ff:ff:ff:ff:ff:ff


inet 192.168.8.42/24 brd 192.168.8.255 scope global eth0


inet 192.168.8.77/24 brd 192.168.8.255 scope global secondary eth0


inet6 fe80::20c:29ff:feeb:423e/64 scope link


valid_lft forever preferred_lft forever


定义nfs存储


# pcs resource create webstore ocf:heartbeat:Filesystem device="192.168.8.20:/sharestore" directory="/web/htdocs" fstype="nfs" op monitor interval=20s timeout=40s op start timeout=60s op stop timeout=60s


[[email protected] ~]# pcs status


Cluster name:


Last updated: Tue Apr 26 18:05:21 2016


Last change: Tue Apr 26 18:05:18 2016 via cibadmin on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


2 Resources configured


Node node2.chinasoft.com: standby


Online: [ node4.chinasoft.com ]


Full list of resources:


webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com


webstore (ocf::heartbeat:Filesystem):Started node4.chinasoft.com


可以看到已经成功挂载


[[email protected] ~]# mount


/dev/mapper/vg_node4-root on / type ext4 (rw)


proc on /proc type proc (rw)


sysfs on /sys type sysfs (rw)


devpts on /dev/pts type devpts (rw,gid=5,mode=620)


tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0")


/dev/sda1 on /boot type ext4 (rw)


/dev/mapper/vg_node4-data on /data type ext4 (rw)


/dev/mapper/vg_node4-usr on /usr/local type ext4 (rw)


/dev/mapper/vg_node4-web on /web type ext4 (rw)


none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)


/dev/sr0 on /mnt type iso9660 (ro)


sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)


192.168.8.20:/sharestore on /web/htdocs type nfs (rw,vers=4,addr=192.168.8.20,clientaddr=192.168.8.42)


创建webserver


[[email protected] ~]# pcs resource create webserver lsb:httpd op monitor interval=30s timeout=20s on-fail=restart


[[email protected] ~]# psc status


-bash: psc: command not found


[[email protected] ~]# pcs status


Cluster name:


Last updated: Tue Apr 26 18:12:56 2016


Last change: Tue Apr 26 18:12:49 2016 via cibadmin on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


3 Resources configured


Node node2.chinasoft.com: standby


Online: [ node4.chinasoft.com ]


Full list of resources:


webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com


webstore (ocf::heartbeat:Filesystem):Started node4.chinasoft.com


webserver (lsb:httpd):Started node4.chinasoft.com


将webip、webstore、webserver定义到webservice组中


[[email protected] ~]# pcs resource group add webservice webip webstore webserver


[[email protected] ~]# pcs status


Cluster name:


Last updated: Tue Apr 26 18:13:37 2016


Last change: Tue Apr 26 18:13:35 2016 via cibadmin on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


3 Resources configured


Node node2.chinasoft.com: standby


Online: [ node4.chinasoft.com ]


Full list of resources:


Resource Group: webservice


webip (ocf::heartbeat:IPaddr):Started node4.chinasoft.com


webstore (ocf::heartbeat:Filesystem):Started node4.chinasoft.com


webserver (lsb:httpd):Started node4.chinasoft.com


此时可以通过访问http://192.168.8.77 看到挂载的nfs文件




配置node4为备用节点


# crm node standby node4.chinasoft.com


定义约束关系，pcs只支持一次两种资源之间关系的定义


[[email protected] ~]# pcs constraint order webip then webstore then webserver


Adding webip webstore (kind: Mandatory) (Options: then webserver first-action=start then-action=start)


[[email protected] ~]# pcs constraint order show


Ordering Constraints:


start webip then start webstore


[[email protected] ~]# pcs constraint order remove webstore webip


[[email protected] ~]# pcs constraint order webip then webserver


Adding webip webserver (kind: Mandatory) (Options: first-action=start then-action=start)


[[email protected] ~]# pcs constraint order webstore then webserver


Adding webstore webserver (kind: Mandatory) (Options: first-action=start then-action=start)


[[email protected] ~]# pcs constraint order show


Ordering Constraints:


start webip then start webserver


start webstore then start webserver




定义资源之间绑定关系


# pcs constraint colocation add webstore with webip




删除组资源，注意：delete命令会将所有的节点都删除


[[email protected] ~]# pcs resource delete webservice


Removing group: webservice (and all resources within group)


Stopping all resources in group: webservice...


Removing Constraint - colocation-webstore-webip-INFINITY


Removing Constraint - order-webip-webserver-mandatory


Deleting Resource - webip


Removing Constraint - order-webstore-webserver-mandatory


Deleting Resource - webstore


Deleting Resource (and group) - webserver


[[email protected] ~]# pcs status


Cluster name:


Last updated: Tue Apr 26 19:17:21 2016


Last change: Tue Apr 26 19:17:11 2016 via cibadmin on node4.chinasoft.com


Stack: classic openais (with plugin)


Current DC: node4.chinasoft.com - partition with quorum


Version: 1.1.10-14.el6-368c726


2 Nodes configured, 2 expected votes


0 Resources configured


Node node2.chinasoft.com: standby


Online: [ node4.chinasoft.com ]


Full list of resources:


重新添加资源


# pcs resource create webip ocf:heartbeat:IPaddr ip=192.168.8.77 op monitor interval=30s timeout=20s on-fail=restart


移除webip


# pcs resource move webip


# pcs status
				


				
时间： 2024-11-08 09:35:01 

		


		


	

	
	

		


		
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