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Restarting services after Puppet is vital to ensure that config changes
go applied. However, it can be sometimes desirable to prevent these
restarts to avoid downtime, if the operator is sure that no config
changes need applying. This can be a case e.g. when scaling compute
nodes. Passing the puppet-pacemaker-no-restart.yaml environment file *in
addition* to puppet-pacemaker.yaml should allow this.
This is a stop gap solution before we have proper communication between
Puppet and Pacemaker to allow selective restarts.
Change-Id: I9c3c5c10ed6ecd5489a59d7e320c3c69af9e19f4
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Also split out echo_error function to DRY the error output code and
allow changing the way we report errors in a single place.
Change-Id: I448bf0eb49390f03155335736bb4ab4e979db128
Co-Authored-By: Jiri Stransky <jistr@redhat.com>
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This enables pacemaker maintenantce mode when running Puppet on stack
update. Puppet can try to restart some overcloud services, which
pacemaker tries to prevent, and this can result in a failed Puppet run.
At the end of the puppet run, certain pacemaker resources are restarted
in an additional SoftwareDeployment to make sure that any config changes
have been fully applied. This is only done on stack updates (when
UpdateIdentifier is set to something), because the assumption is that on
stack create services already come up with the correct config.
(Change I9556085424fa3008d7f596578b58e7c33a336f75 has been squashed into
this one.)
Change-Id: I4d40358c511fc1f95b78a859e943082aaea17899
Co-Authored-By: Jiri Stransky <jistr@redhat.com>
Co-Authored-By: James Slagle <jslagle@redhat.com>
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Jiri Stransky
Giulio Fidente
Steven Hardy