• ansible


    
    

    [root@station20 /]# export LANG=en
    [root@station20 /]# tree /ansible/  # 注释: 环境配置很重要
    /ansible/
    `-- corosync
    |-- conf
    | |-- authkey
    | `-- corosync.conf
    |-- corosync.yaml
    `-- packages
    |-- crmsh-1.2.6-4.el6.x86_64.rpm
    `-- pssh-2.3.1-2.el6.x86_64.rpm

    3 directories, 5 files

    [root@station20 corosync]# pwd
    /ansible/corosync
    [root@station20 corosync]# ls
    conf corosync.yaml packages

    root@station20 corosync]# ls packages/
    crmsh-1.2.6-4.el6.x86_64.rpm pssh-2.3.1-2.el6.x86_64.rpm
    [root@station20 corosync]# ls conf/
    authkey corosync.conf

    [root@station20 corosync]# cat corosync.yaml # 查看ansible脚本文件 
    - hosts: all         # hosts : ansible 配置文件hosts中的配置我们这里的配置是:如下
    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

    [root@station20 corosync]# cat /etc/ansible/hosts  # ansible配置文件
    # This is the default ansible 'hosts' file.
    #
    # It should live in /etc/ansible/hosts
    #
    # - Comments begin with the '#' character
    # - Blank lines are ignored
    # - Groups of hosts are delimited by [header] elements
    # - You can enter hostnames or ip addresses
    # - A hostname/ip can be a member of multiple groups

    # Ex 1: Ungrouped hosts, specify before any group headers.

    #green.example.com
    #blue.example.com
    #192.168.100.1
    #192.168.100.10

    # Ex 2: A collection of hosts belonging to the 'webservers' group

    #[webservers]
    #alpha.example.org
    #beta.example.org
    #192.168.1.100
    #192.168.1.110

    # If you have multiple hosts following a pattern you can specify
    # them like this:

    #www[001:006].example.com

    # Ex 3: A collection of database servers in the 'dbservers' group

    #[dbservers]

    #db01.intranet.mydomain.net
    #db02.intranet.mydomain.net
    #10.25.1.56
    #10.25.1.57

    # Here's another example of host ranges, this time there are no
    # leading 0s:

    #db-[99:101]-node.example.com
    [webservers]
    node4.firefox.com
    node5.firefox.com

     执行脚本:

    2014-04-20[root@station20 ~]# cd /ansible/corosync/
    [root@station20 corosync]# ansible-playbook  corosync.yaml 
    
    PLAY [all] ******************************************************************** 
    
    GATHERING FACTS *************************************************************** 
    ok: [node4.firefox.com]
    ok: [node5.firefox.com]
    
    TASK: [corosync installing] *************************************************** 
    changed: [node5.firefox.com]
    changed: [node4.firefox.com]
    
    TASK: [pacemaker installing] ************************************************** 
    changed: [node5.firefox.com]
    changed: [node4.firefox.com]
    
    TASK: [crmsh rpm packages] **************************************************** 
    changed: [node5.firefox.com]
    changed: [node4.firefox.com]
    
    TASK: [pssh rpm packages] ***************************************************** 
    changed: [node4.firefox.com]
    changed: [node5.firefox.com]
    
    TASK: [crmsh installing] ****************************************************** 
    changed: [node5.firefox.com]
    changed: [node4.firefox.com]
    
    TASK: [authkey configure file] ************************************************ 
    changed: [node5.firefox.com]
    changed: [node4.firefox.com]
    
    TASK: [authkey mode 400] ****************************************************** 
    changed: [node4.firefox.com]
    changed: [node5.firefox.com]
    
    TASK: [corosync.conf configure file] ****************************************** 
    changed: [node4.firefox.com]
    changed: [node5.firefox.com]
    
    TASK: [ensure the corosync service startup on boot] *************************** 
    changed: [node5.firefox.com]
    changed: [node4.firefox.com]
    
    NOTIFIED: [restart corosync] ************************************************** 
    changed: [node5.firefox.com]
    changed: [node4.firefox.com]
    
    PLAY RECAP ******************************************************************** 
    node4.firefox.com          : ok=11   changed=10   unreachable=0    failed=0   
    node5.firefox.com          : ok=11   changed=10   unreachable=0    failed=0   

     使用crm定义linux高可用集群:

    crm(live)configure# property  stonith-enabled=false
    crm(live)configure# verify 
    crm(live)configure# commit 
    crm(live)configure# property no-quorum-policy=ignore
    crm(live)configure# verify 
    crm(live)configure# commit 
    crm(live)configure# show 
    node node4.firefox.com
    node node5.firefox.com
    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# rsc_defaults  resource-stickiness=100
    crm(live)configure# verify 
    crm(live)configure# commit 
    crm(live)configure# primitive webip ocf:heartbeat:IPaddr2 params  ip=172.16.149.00 op monitor  interval=5s timeout=20s no-fail=restart
    crm(live)configure# verify 
    crm(live)configure# primitive  webstore ocf:heartbeat:Filesystem params device="172.16.249.168:/www/htdoc" directory="/var/www/html" fstype="nfs" op monitor interval=20s timeout=60s 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# group  webservice webip webstore  webserver 
    crm(live)configure# show 
    node node4.firefox.com
    node node5.firefox.com
    primitive webip ocf:heartbeat:IPaddr2 \
        params ip="172.16.149.200" \
        op monitor interval="5s" timeout="20s" no-fail="restart"
    primitive webserver lsb:httpd \
        op monitor interval="30s" timeout="20s" on-fail="restart"
    primitive webstore ocf:heartbeat:Filesystem \
        params device="172.16.249.168:/www/htdoc" directory="/var/www/html" fstype="nfs" \
        op monitor interval="20s" timeout="60s" \
        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"
    rsc_defaults $id="rsc-options" \
        resource-stickiness="100"
    crm(live)configure# show xml 
    <?xml version="1.0" ?>
    <cib num_updates="5" dc-uuid="node5.firefox.com" update-origin="node5.firefox.com" crm_feature_set="3.0.7" validate-with="pacemaker-1.2" update-client="cibadmin" epoch="8" admin_epoch="0" cib-last-written="Sat Apr 19 19:42:12 2014" 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="node4.firefox.com" uname="node4.firefox.com"/>
          <node id="node5.firefox.com" uname="node5.firefox.com"/>
        </nodes>
        <resources>
          <group id="webservice">
            <primitive id="webip" class="ocf" provider="heartbeat" type="IPaddr2">
              <instance_attributes id="webip-instance_attributes">
                <nvpair name="ip" value="172.16.149.200" id="webip-instance_attributes-ip"/>
              </instance_attributes>
              <operations>
                <op name="monitor" interval="5s" timeout="20s" id="webip-monitor-5s">
                  <instance_attributes id="webip-monitor-5s-instance_attributes">
                    <nvpair name="no-fail" value="restart" id="webip-monitor-5s-instance_attributes-no-fail"/>
                  </instance_attributes>
                </op>
              </operations>
            </primitive>
            <primitive id="webstore" class="ocf" provider="heartbeat" type="Filesystem">
              <instance_attributes id="webstore-instance_attributes">
                <nvpair name="device" value="172.16.249.168:/www/htdoc" id="webstore-instance_attributes-device"/>
                <nvpair name="directory" value="/var/www/html" id="webstore-instance_attributes-directory"/>
                <nvpair name="fstype" value="nfs" id="webstore-instance_attributes-fstype"/>
              </instance_attributes>
              <operations>
                <op name="monitor" interval="20s" timeout="60s" id="webstore-monitor-20s"/>
                <op name="start" timeout="60s" interval="0" id="webstore-start-0"/>
                <op name="stop" timeout="60s" on-fail="restart" interval="0" id="webstore-stop-0"/>
              </operations>
            </primitive>
            <primitive id="webserver" class="lsb" type="httpd">
              <operations>
                <op name="monitor" interval="30s" timeout="20s" on-fail="restart" id="webserver-monitor-30s"/>
              </operations>
            </primitive>
          </group>
        </resources>
        <constraints/>
        <rsc_defaults>
          <meta_attributes id="rsc-options">
            <nvpair name="resource-stickiness" value="100" id="rsc-options-resource-stickiness"/>
          </meta_attributes>
        </rsc_defaults>
      </configuration>
    </cib>
    (END) 

    crm(live)configure# order webip_before_webstore_webserver mandatory: webip webstore webserver
    crm(live)configure# verify
    crm(live)configure# show xml

    <?xml version="1.0" ?>

    <cib num_updates="5" dc-uuid="node5.firefox.com" update-origin="node5.firefox.com" crm_feature_set="3.0.7" validate-with="pacemaker-1.2" update-client="cibadmin" epoch="8" admin_epoch="0" cib-last-written="Sat Apr 19 19:42:12 2014" 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="node5.firefox.com" uname="node5.firefox.com"/>
    <node id="node4.firefox.com" uname="node4.firefox.com"/>
    </nodes>
    <resources>
    <group id="webservice">
    <primitive id="webip" class="ocf" provider="heartbeat" type="IPaddr2">
    <instance_attributes id="webip-instance_attributes">
    <nvpair name="ip" value="172.16.149.200" id="webip-instance_attributes-ip"/>
    </instance_attributes>
    <operations>
    <op name="monitor" interval="5s" timeout="20s" id="webip-monitor-5s">
    <instance_attributes id="webip-monitor-5s-instance_attributes">
    <nvpair name="no-fail" value="restart" id="webip-monitor-5s-instance_attributes-no-fail"/>
    </instance_attributes>
    </op>
    </operations>
    </primitive>
    <primitive id="webstore" class="ocf" provider="heartbeat" type="Filesystem">
    <instance_attributes id="webstore-instance_attributes">
    <nvpair name="device" value="172.16.249.168:/www/htdoc" id="webstore-instance_a
    ttributes-device"/>
    <nvpair name="directory" value="/var/www/html" id="webstore-instance_attributes
    -directory"/>
    <nvpair name="fstype" value="nfs" id="webstore-instance_attributes-fstype"/>
    </instance_attributes>
    <operations>
    <op name="monitor" interval="20s" timeout="60s" id="webstore-monitor-20s"/>
    <op name="start" timeout="60s" interval="0" id="webstore-start-0"/>
    <op name="stop" timeout="60s" on-fail="restart" interval="0" id="webstore-stop-
    0"/>
    </operations>
    </primitive>
    <primitive id="webserver" class="lsb" type="httpd">
    <operations>
    <op name="monitor" interval="30s" timeout="20s" on-fail="restart" id="webserver
    -monitor-30s"/>
    </operations>
    </primitive>
    </group>
    </resources>
    <constraints>
    <rsc_order id="webip_before_webstore_webserver" score="INFINITY">
    <resource_set id="webip_before_webstore_webserver-0">
    <resource_ref id="webip"/>
    <resource_ref id="webstore"/>
    <resource_ref id="webserver"/>
    </resource_set>
    </rsc_order>
    </constraints>
    <rsc_defaults>
    <meta_attributes id="rsc-options">
    <nvpair name="resource-stickiness" value="100" id="rsc-options-resource-stickiness"
    />
    </meta_attributes>
    </rsc_defaults>
    </configuration>
    </cib>

    [root@node5 ~]# crm
    crm(live)# status
    Last updated: Sat Apr 19 20:57:02 2014
    Last change: Sat Apr 19 20:51:14 2014 via cibadmin on node5.firefox.com
    Stack: classic openais (with plugin)
    Current DC: node5.firefox.com - partition with quorum
    Version: 1.1.10-14.el6-368c726
    2 Nodes configured, 2 expected votes
    3 Resources configured


    Online: [ node4.firefox.com node5.firefox.com ]

    Resource Group: webservice
    webip (ocf::heartbeat:IPaddr2): Started node5.firefox.com
    webstore (ocf::heartbeat:Filesystem): Started node5.firefox.com 

    webserver (lsb:httpd): Started node5.firefox.com

    [root@node5 ~]# crm node standby node5.firefox.com
    [root@node5 ~]# crm status
    Last updated: Sat Apr 19 21:00:45 2014
    Last change: Sat Apr 19 21:00:40 2014 via crm_attribute on node5.firefox.com
    Stack: classic openais (with plugin)
    Current DC: node5.firefox.com - partition with quorum
    Version: 1.1.10-14.el6-368c726
    2 Nodes configured, 2 expected votes
    3 Resources configured


    Node node5.firefox.com: standby
    Online: [ node4.firefox.com ]

    Resource Group: webservice
    webip (ocf::heartbeat:IPaddr2): Started node4.firefox.com
    webstore (ocf::heartbeat:Filesystem): Started node4.firefox.com
    webserver (lsb:httpd): Started node4.firefox.com

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  • 原文地址:https://www.cnblogs.com/xiaocen/p/3676864.html
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