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authorJiri Stransky <jistr@redhat.com>2016-08-19 15:17:59 +0200
committerJiri Stransky <jistr@redhat.com>2016-08-30 11:19:53 +0200
commitda4bcee4d65cf2e0d48eab03a4a9582e3806238e (patch)
treed678f042c861e1529862bebd3603c015c011c560 /manifests/pacemaker
parent66e52a73cf60c8972040929a19b4d56cd7c20737 (diff)
Write restart flags to restart services only when necessary
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 $pacemaker_master only (we don't want to restart the pacemaker services 3 times when we have 3 controllers), so it relies on the assumption that we're making the matching config changes across the pacemaker nodes. Change-Id: I6369ab0c82dbf3c8f21043f8aa9ab810744ddc12
Diffstat (limited to 'manifests/pacemaker')
-rw-r--r--manifests/pacemaker/resource_restart_flag.pp35
1 files changed, 35 insertions, 0 deletions
diff --git a/manifests/pacemaker/resource_restart_flag.pp b/manifests/pacemaker/resource_restart_flag.pp
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index 0000000..aded802
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+++ b/manifests/pacemaker/resource_restart_flag.pp
@@ -0,0 +1,35 @@
+# Copyright 2016 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# == Define: tripleo::pacemaker::resource_restart_flag
+#
+# Creates a flag file on the filesystem to signify that a pacemaker
+# resource needs restarting (usually to pick up config changes after
+# they've been written on all nodes).
+#
+# === Parameters
+#
+# [*title*]
+# The resource name in Pacemaker to restart. If it's a cloned
+# resource, the name should include the '-clone' part.
+#
+define tripleo::pacemaker::resource_restart_flag() {
+
+ exec { "${title} resource restart flag":
+ command => "touch /var/lib/tripleo/pacemaker-restarts/${title}",
+ path => ['/bin','/usr/bin','/sbin','/usr/sbin'],
+ refreshonly => true,
+ }
+
+}