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In the Next Generation HA architecture a number of active/active services
will be run via systemd. In order for this to work we need to make sure that
the sync_db operation only takes place on the bootstrap node, just like it is
done today for the pacemaker profiles.
We do this by removing sync_db as a parameter and instead set it to true
or false depending if the hostname matches the bootstrap_node as it is done
today in the pacemaker role.
Note that we call hiera('bootstrap_nodeid', undef) because if a profile
is included on a non controller node that variable will be undefined.
The following testing was done:
- HA puppet-pacemaker.yaml scenario with three computes
- NonHA with one controller
- NonHA with three controllers
Fixes-Bug: 1600149
Co-Author: cmsj@tenshu.net
Change-Id: I04a7b9e3c18627ea512000a34357acb7f27d6e0e
Implements: blueprint ha-lightweight-architecture
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We perform the Galera setup in step 2 so there is no guarantee that the
database will be available in that same step [1].
We used to implement a dependency in puppet using the 'galera-ready'
resource (clustercheck) but this is not possible with roles because we
also don't have any guarantee about clustercheck being installed on the
same node.
Because of the above all services must create/sync their databases
in a later step. This patch fixes Nova API and Neutron Server, the other
services use step 3 already.
1. https://github.com/openstack/tripleo-heat-templates/blob/master/puppet/services/README.rst
Change-Id: I22750ffb64afbe40b5560a6a0d0dabc5b8927d32
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This patch brings the neutron profiles and the
associated steps in line with what already happens in
t-h-t. Specifically:
-we want to create the db $step >= 2 and $sync_db
-we want to make sure plugin.ini exists before the neutron dbsync
-we want to make sure the db sync runs before neutron::server starts
when using pacemaker
-split the neutron server profiles. They are quite different across
pacemaker and base.
Change-Id: I52815f45a04bf3e39940b9cb116261730580a3e2
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These can be controlled via the specific Pacemaker role template.
Depends-On: I91a4267f0fc230f63df3333747d28463c7ae55fe
Change-Id: I8ef7bb94e048b998712b3534ceb51a7d10d016e9
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Implements: blueprint refactor-puppet-manifests
Add neutron profiles for both pacemaker and non-ha.
HA profiles are designed such that they include the base
profiles, disabling features as needed, while the base
profile can be used independently.
Co-Authored-By: Dan Prince <dprince@redhat.com>
Change-Id: Ida781badbcd63bbcb481a2170638aefe262b717b
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