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authorMichele Baldessari <michele@acksyn.org>2016-08-26 16:46:44 +0200
committerMichele Baldessari <michele@acksyn.org>2016-09-19 12:48:00 +0200
commit63421ca73de8ed9a0033706c190bf9a6eca4b582 (patch)
tree56a48eedf915d6075873f22b3b6ad106de46bc73 /puppet/services
parentd8f3e366a0f6d5bbdfd63d9caccb3b352b5ed60e (diff)
Add a function to upgrade from full HA to NG HA
This is the initial work to have a function that migrates a full HA architecture as deployed in Mitaka to the HA architecture as deployed in Newton where only a few resources are managed by pacemaker. The sequence is the following: 1) We remove the desired services from pacemaker's control. The services at this point are still running normally via the systemd service as invoked by pacemaker 2) We do a "systemctl stop <service>" on all controllers for all the services that were removed from pacemaker's control. We do this to make sure that during the yum upgrade, the %post sections that call "systemctl try-restart" do not take ages, because at this point during the upgrade rabbit is down. The only exceptions are "openstack-core" and "delay" which are dummy pacemaker resources that do not exist on the system 3) We do a "systemctl start <service>" on all nodes for all the services mentioned above. We should probably merge this patch only when newton has branched as it is very specific to the M/N upgrade. Closes-Bug: 1617520 Change-Id: I4c409ce58c1a57b6e0decc3cf168b62698b32e39
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