[ClusterLabs] active/passive resource config

[Sherrard Burton]

On 10/25/19 2:03 AM, jyd wrote:
> Hi:
>      I want to user pacemaker to mange a resource named A,i want A only 
> started on one node,
> only when the node is down or A can not started in this node,the A 
> resource will started on other nodes.
> And config a virtual ip resource for A,the virtual ip only started on 
> the node which A is runnind.
> so how to config that?i trid like this but it didn't act as i expected.
> 
> ------------------
> pcs resource create A systemd:myservice   op  start  interval=0s  
> timeout=20s   monitor  interval=10s  timeout=20s   stop  interval=0s 
> timeout=20s meta migration-threshold=3  failure-timeout=60
> 
> pcs resource create vip ocf:heartbeat:IPaddr2 ip=192.168.2.87 
> cidr_netmask=24 op monitor interval=20s  meta resource-stickiness=100
> 
> pcs constraint colocation add vip A INFINITY
> 
> pcs constraint order A then vip

it looks like you are missing the colocation constraint that ties vip 
and myservice together

https://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/1.1/html/Clusters_from_Scratch/_ensuring_resources_run_on_the_same_host.html