第 17 章 管理集群资源

流程

1. 创建一个 LVM-activate 资源。

   # pcs resource create my_lvm ocf:heartbeat:LVM-activate vgname=my_vg vg_access_mode=system_id --group apachegroup

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2. 创建一个 Filesystem 资源。

   # pcs resource create my_fs Filesystem device="/dev/my_vg/my_lv" directory="/var/www" fstype="xfs" --group apachegroup

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3. 创建一个 IPaddr2 资源。

   # pcs resource create VirtualIP IPaddr2 ip=198.51.100.3 cidr_netmask=24 --group apachegroup

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4. 创建一个 Apache 资源。

   # pcs resource create Website apache configfile="/etc/httpd/conf/httpd.conf" statusurl="http://127.0.0.1/server-status" --group apachegroup

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5. 显示您可以用来重新创建您在不同系统上创建的四个资源的 pcs 命令。

   # pcs resource config --output-format=cmd
   pcs resource create --no-default-ops --force -- my_lvm ocf:heartbeat:LVM-activate \
     vg_access_mode=system_id vgname=my_vg \
     op \
       monitor interval=30s id=my_lvm-monitor-interval-30s timeout=90s \
       start interval=0s id=my_lvm-start-interval-0s timeout=90s \
       stop interval=0s id=my_lvm-stop-interval-0s timeout=90s;
   pcs resource create --no-default-ops --force -- my_fs ocf:heartbeat:Filesystem \
     device=/dev/my_vg/my_lv directory=/var/www fstype=xfs \
     op \
       monitor interval=20s id=my_fs-monitor-interval-20s timeout=40s \
       start interval=0s id=my_fs-start-interval-0s timeout=60s \
       stop interval=0s id=my_fs-stop-interval-0s timeout=60s;
   pcs resource create --no-default-ops --force -- VirtualIP ocf:heartbeat:IPaddr2 \
     cidr_netmask=24 ip=198.51.100.3 \
     op \
       monitor interval=10s id=VirtualIP-monitor-interval-10s timeout=20s \
       start interval=0s id=VirtualIP-start-interval-0s timeout=20s \
       stop interval=0s id=VirtualIP-stop-interval-0s timeout=20s;
   pcs resource create --no-default-ops --force -- Website ocf:heartbeat:apache \
     configfile=/etc/httpd/conf/httpd.conf statusurl=http://127.0.0.1/server-status \
     op \
       monitor interval=10s id=Website-monitor-interval-10s timeout=20s \
       start interval=0s id=Website-start-interval-0s timeout=40s \
       stop interval=0s id=Website-stop-interval-0s timeout=60s;
   pcs resource group add apachegroup \
     my_lvm my_fs VirtualIP Website

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6. 显示您可以用来只重新创建 IPaddr2 资源的 pcs 命令。要只显示一个配置的资源，请指定该资源的资源 ID。

   # pcs resource config VirtualIP --output-format=cmd
   pcs resource create --no-default-ops --force -- VirtualIP ocf:heartbeat:IPaddr2 \
     cidr_netmask=24 ip=198.51.100.3 \
     op \
       monitor interval=10s id=VirtualIP-monitor-interval-10s timeout=20s \
       start interval=0s id=VirtualIP-start-interval-0s timeout=20s \
       stop interval=0s id=VirtualIP-stop-interval-0s timeout=20s

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