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--- cluster_hardware_amb_pacemaker_i_corosync [2023/07/03 06:19]
isaac_gonzalo_rivero [Software]
+++ cluster_hardware_amb_pacemaker_i_corosync [2023/07/06 06:52] (actual)
isaac_gonzalo_rivero
@@ Línia 513: / Línia 513: @@
 <code bash>
-crm(live/node1)configure# primitive IP-nginx ocf:heartbeat:IPaddr2 params ip="172.16.80.10" nic="ens160" cidr_netmask="24" meta migration-threshold=2 op monitor interval=20 timeout=60 on-fail=restart
+crm(live/node1)configure# primitive IP-nginx ocf:heartbeat:IPaddr2 params ip="172.16.84.10" nic="ens160" cidr_netmask="24" meta migration-threshold=2 op monitor interval=20 timeout=60 on-fail=restart
 crm(live/node1)configure# primitive Nginx-rsc ocf:heartbeat:nginx meta migration-threshold=2 option monitor interval=20 timeout=60 on-fail=restart
 crm(live/node1)configure# colocation lb-loc inf: IP-nginx Nginx-rsc
@@ Línia 556: / Línia 556: @@
 crm(fencing/node1)# configure
 crm(fencing/node1)configure# property stonith-enabled=yes
-crm(fencing/node1)configure# primitive fence_node01 stonith:fence_virsh params ipaddr=172.16.84.20 port=node1 action=off login=root passwd=Hola123 op monitor interval=60s
+crm(fencing/node1)configure# primitive fence_node01 stonith:fence_virsh params ipaddr=172.16.84.11 port=node1 action=off login=root passwd=Hola123 op monitor interval=60s
-crm(fencing/node1)configure# primitive fence_node02 stonith:fence_virsh params ipaddr=172.16.84.20 port=node2 action=off login=root passwd=Hola123 op monitor interval=60s
+crm(fencing/node1)configure# primitive fence_node02 stonith:fence_virsh params ipaddr=172.16.84.12 port=node2 action=off login=root passwd=Hola123 op monitor interval=60s
-crm(fencing/node1)configure# primitive fence_node03 stonith:fence_virsh params ipaddr=172.16.84.20 port=node3 action=off login=root passwd=Hola123 op monitor interval=60s
+crm(fencing/node1)configure# primitive fence_node03 stonith:fence_virsh params ipaddr=172.16.84.13 port=node3 action=off login=root passwd=Hola123 op monitor interval=60s
 crm(fencing/node1)configure# location l_fence_node01 fence_node01 -inf: node1
 crm(fencing/node1)configure# location l_fence_node02 fence_node02 -inf: node2
@@ Línia 565: / Línia 565: @@
 </code>
-===== Operació ======
+Amb això ja tindriem generats els agents de tanca. Podem simular el funcionament amb la nova cib:
+<code bash>
+crm(fencing/node1)configure# cib cibstatus simulate
+Current cluster status:
+  * Node List:
+    * Online: [ node1 node2 node3 ]
+  * Full List of Resources:
+    * IP-nginx	(ocf:heartbeat:IPaddr2):	 Started node2
+    * Nginx-rsc	(ocf:heartbeat:nginx):	 Started node2
+    * fence_node01	(stonith:fence_virsh):	 Stopped
+    * fence_node02	(stonith:fence_virsh):	 Stopped
+    * fence_node03	(stonith:fence_virsh):	 Stopped
+Transition Summary:
+  * Start      fence_node01     ( node3 )
+  * Start      fence_node02     ( node1 )
+  * Start      fence_node03     ( node1 )
+Executing Cluster Transition:
+  * Resource action: fence_node01    monitor on node3
+  * Resource action: fence_node01    monitor on node2
+  * Resource action: fence_node01    monitor on node1
+  * Resource action: fence_node02    monitor on node3
+  * Resource action: fence_node02    monitor on node2
+  * Resource action: fence_node02    monitor on node1
+  * Resource action: fence_node03    monitor on node3
+  * Resource action: fence_node03    monitor on node2
+  * Resource action: fence_node03    monitor on node1
+  * Resource action: fence_node01    start on node3
+  * Resource action: fence_node02    start on node1
+  * Resource action: fence_node03    start on node1
+  * Resource action: fence_node01    monitor=60000 on node3
+  * Resource action: fence_node02    monitor=60000 on node1
+  * Resource action: fence_node03    monitor=60000 on node1
+Revised Cluster Status:
+  * Node List:
+    * Online: [ node1 node2 node3 ]
+  * Full List of Resources:
+    * IP-nginx	(ocf:heartbeat:IPaddr2):	 Started node2
+    * Nginx-rsc	(ocf:heartbeat:nginx):	 Started node2
+    * fence_node01	(stonith:fence_virsh):	 Started node3
+    * fence_node02	(stonith:fence_virsh):	 Started node1
+    * fence_node03	(stonith:fence_virsh):	 Started node1
+</code>
+I, si tot sembla correcte, podem pasar els canvis a producció:
+<code bash>
+crm(fencing/node1)configure# cib commit
+INFO: configure.cib.commit: committed 'fencing' shadow CIB to the cluster
+crm(fencing/node1)configure# cib use
+crm(live/node1)configure#
+</code>
+Per fer un check de l'status podem fer-ho amb **crm status*
+que ens haurà de donar un resultat semblant al següent:
+<code bash>
+crm_mon
+Cluster Summary:
+  * Stack: corosync
+  * Current DC: node2 (version 2.1.5-a3f44794f94) - partition with quorum
+  * Last updated: Mon Jul  3 08:41:48 2023
+  * Last change:  Mon Jul  3 08:40:06 2023 by root via cibadmin on node1
+  * 3 nodes configured
+  * 5 resource instances configured
+Node List:
+  * Online: [ node1 node2 node3 ]
+Active Resources:
+  * IP-nginx    (ocf:heartbeat:IPaddr2):         Started node2
+  * Nginx-rsc   (ocf:heartbeat:nginx):   Started node2
+  * fence_node01        (stonith:fence_virsh):   Started node3
+  * fence_node02        (stonith:fence_virsh):   Started node1
+  * fence_node03        (stonith:fence_virsh):   Started node1
+</code>
+Amb això ja tindrem el nostre Nginx en cluster corrent en 3 nodes, i podem jugar tancant i encenent nodes i comprovar com l'Nginx continua funcionant independentment del node on corri.
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