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バージョン: 3.0

制御ノードの交換ガイド

クラスターからコントロールノードを削除する​

このガイドは、マスターコントローラー以外のコントローラーでのみ有効です。

コントローラーに接続​

    $ ssh [email protected]
    Warning: Permanently added '192.168.1.x' (ECDSA) to the list of known hosts.
    Password:

ノードを削除​

クラスタからcc3を削除する

  cc1> cluster
  cc1:cluster> remove_node
  1: compute01
  2: cc3
  3: compute02
  4: cc1
  5: cc2
  Enter index: 2
  this command is only applicable for compute or storage nodes
  make sure its running instances have been properly terminated or migrated
  shutdown the target host before proceeding
  Enter 'YES' to confirm: YES

バックアップ cc3 ポリシー​

お近くのPC端末から

    scp -r root@cc3_IPADDRESS:/etc/policies Downloads/cc3_policy

シャットダウン cc3​

    $ ssh [email protected]
    Warning: Permanently added '192.168.1.103' (ECDSA) to the list of known hosts.
    Password:
    Welcome to the Cube Appliance
    Enter "help" for a list of available commands
    cc3> shutdown
    Enter 'YES' to confirm: YES
    Connection to 192.168.1.103 closed by remote host.
    Connection to 192.168.1.103 closed.

コントロールホストの追加​

CubeCOSがインストールされた新しいノードを準備する

設定​

以下のリストにある任意のオプションに従って、新しいcc3ノードを再構成してください：

cc3 に接続​

    $ ssh [email protected]
    Warning: Permanently added '192.168.1.103' (ECDSA) to the list of known hosts.
    Password:

点検・修理サービス​

Welcome to the Cube Appliance
Enter "help" for a list of available commands
cc3> cluster
cc3:cluster> check
          Service  Status  Report
      ClusterLink      ok  [ link(v) clock(v) dns(v) ]
       ClusterSys      ok  [ bootstrap(v) license(v) ]
  ClusterSettings      ok  [ etcd(v) ]
        HaCluster      ok  [ hacluster(v) ]
         MsgQueue      ok  [ rabbitmq(v) ]
           IaasDb      ok  [ mysql(v) ]
        VirtualIp      ok  [ vip(v) haproxy_ha(v) ]
          Storage      ok  [ ceph(v) ceph_mon(v) ceph_mgr(v) ceph_mds(v) ceph_osd(v) ceph_rgw(v) rbd_target(v) ]
       ApiService      ok  [ haproxy(v) httpd(v) lmi(v) memcache(v) ]
     SingleSignOn      ok  [ keycloak(v) ]
          Compute      ok  [ nova(v) ]
        Baremetal      ok  [ ironic(v) ]
          Network      ok  [ neutron(v) ]
            Image      ok  [ glance(v) ]
        BlockStor      ok  [ cinder(v) ]
         FileStor      ok  [ manila(v) ]
       ObjectStor      ok  [ swift(v) ]
    Orchestration      ok  [ heat(v) ]
            LBaaS      ok  [ octavia(v) ]
           DNSaaS      ok  [ designate(v) ]
           K8SaaS      ok  [ k3s(v) rancher(v) ]
       InstanceHa      ok  [ masakari(v) ]
 DisasterRecovery      ok  [ freezer(v) ]
    BusinessLogic      ok  [ mistral(v) murano(v) cloudkitty(v) senlin(v) watcher(v) ]
       ApiManager      ok  [ tyk(v) redis(v) mongodb(v) ]
         DataPipe      ok  [ zookeeper(v) kafka(v) ]
          Metrics      ok  [ monasca(v) telegraf(v) grafana(v) ]
     LogAnalytics      ok  [ filebeat(v) auditbeat(v) logstash(v) es(v) kibana(v) ]
    Notifications      ok  [ influxdb(v) kapacitor(v) ]
cc3:cluster>

HAの状態を確認​

cc3:cluster> health HaCluster

[ HaCluster ]
hacluster:
Last updated: Fri Aug  7 16:52:30 2020  Last change: Fri Aug  7 13:11:58 2020 by hacluster via crmd on cc1
Stack: corosync
Current DC: cc1 (version 1.1.14-70404b0) - partition with quorum
5 nodes and 3 resources configured

Online: [ compute01 compute02 cc1 cc2 cc3 ]

Full list of resources:

vip (ocf::heartbeat:IPaddr2): Started cc3
haproxy (systemd:haproxy-ha): Started cc3
cinder-volume (systemd:cinder-volume): Started cc2