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2017-05-25Puppet module to deploy HAProxy bundle for HADamien Ciabrini1-3/+15
This module is used by tripleo-heat-templates to configure and deploy Kolla-based haproxy containers managed by pacemaker. We use short-lived containers that call pcs via puppet to create the needed pacemaker resources, properties and constraints. Co-Authored-By: Michele Baldesari <michele@acksyn.org> Partial-Bug: #1692908 Depends-On: I44fbd7f89ab22b72e8d3fc0a0e3fe54a9418a60f Depends-On: Ie9b7e7d2a3cec4b121915a17c1e809e4ec950e7f Change-Id: Ifcf890a88ef003d3ab754cb677cbf34ba8db9312
2017-05-03IPv6 VIP addresses need to be /128Michele Baldessari1-6/+14
We currently hardcode /64 as our VIP addresses when using IPv6. The problem with this is that some server code might bind to that IP as a source address when doing inter-cluster communication (rabbitmq/galera for example). So when the VIP moves there will be effectively a network outage between the nodes, which should not happen. Likely this was hardcoded to /64 because the RA IPaddr2 needs a nic parameter when /128 is specified. This is due to: https://bugzilla.redhat.com/show_bug.cgi?id=1445628 We also make sure we use the ipv6_addrlabel option set to 99 so that they will never be used as source ip addresses. Depends-On: I7fcf15a00aedbdcfb21db501ad46c69fb97ec30c Partial-Bug: #1686357 Change-Id: Ibefde870512ad1e03ff12f7aea91b3734f03f96f Co-Authored-By: Sofer Athlan-Guyot <sathlang@redhat.com> Co-Authored-By: Marios Andreou <mandreou@redhat.com> Co-Authored-By: Damien Ciabrini <dciabrin@redhat.com>
2017-01-25Composable HAMichele Baldessari1-12/+40
This commit implements composable HA for the pacemaker profiles. - Everytime a pacemaker resource gets included on a node, that node will add a node cluster property with the name of the resource (e.g. galera-role=true) - Add a location rule constraint to force running the resource only on the nodes that have that property - We also make sure that any pacemaker resource/property creation has a predefined number of tries (20 by default). The reason for this is that within composable HA, it might be possible to get "older CIB" errors when another node changed the CIB while we were doing an operation on it. Simply retrying fixes this. - Also make sure that we use the newly introduced pacemaker::constraint::order class instead of the older pacemaker::constraint::base class. The former uses the push_cib() function and hence behaves correctly in case multiple nodes try to modify the CIB at the same time. Change-Id: I63da4f48da14534fd76265764569e76300534472 Depends-On: Ib931adaff43dbc16220a90fb509845178d696402 Depends-On: I8d78cc1b14f0e18e034b979a826bf3cdb0878bae Depends-On: Iba1017c33b1cd4d56a3ee8824d851b38cfdbc2d3
2016-10-13Ensure presence of pacemaker restart directory.Sofer Athlan-Guyot1-0/+11
Currently the /var/lib/tripleo/pacemaker-restarts directory is created only when base/pacemaker.pp file is included in the manifest. There is a notification that ensures precedence order and trigger the touch. The trigger and the dependency on the base/pacemaker.pp should not be required as someone using the tripleo::pacemaker::resource_restart_flag would expect the file to be created no matter what. For instance in the Cinder upgrade in the convergence step has this defined: Cinder_config<||> ~> Tripleo::Pacemaker::Resource_restart_flag["${::cinder::params::volume_service}"] but in the convergence step, the base/pacemaker.pp is not included and the above trigger fails as the directory is not created. It looks the same for manilla.pp. This patch removes the trigger and ensures the directory is created when needed. Change-Id: Ic3aa82c818662e9e88e21c8381d657adef5b43ac Closes-Bug: #1632232
2016-08-30Write restart flags to restart services only when necessaryJiri Stransky1-0/+35
Write restart flag file for services managed by Pacemaker into /var/lib/tripleo/pacemaker-restarts directory. The name of the file must match the name of the clone resource defined in pacemaker. The post-puppet restart script will restart each service having a restart flag file and remove those files. This approach focuses on $pacemaker_master only (we don't want to restart the pacemaker services 3 times when we have 3 controllers), so it relies on the assumption that we're making the matching config changes across the pacemaker nodes. Change-Id: I6369ab0c82dbf3c8f21043f8aa9ab810744ddc12
2016-04-13Refactor HAproxy and VIP creation.Sofer Athlan-Guyot1-0/+64
In tripleo heat template, overcloud_controller_pacemaker.pp has a lot of duplicate code to define haproxy and vip creation. This is an attempt to refactor this. Change-Id: I4cc6711911c1bfa1bc6063979e2b2a7ab5b8d37b