Merge "Function library for major upgrades"

1 files changed, 14 insertions, 0 deletions

diff --git a/extraconfig/tasks/major_upgrade_pacemaker_migrations.sh b/extraconfig/tasks/major_upgrade_pacemaker_migrations.sh
new file mode 100644
index 00000000..7fd26945
--- /dev/null
+++ b/extraconfig/tasks/major_upgrade_pacemaker_migrations.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Special pieces of upgrade migration logic go into this
+# file. E.g. Pacemaker cluster transitions for existing deployments,
+# matching changes to overcloud_controller_pacemaker.pp (Puppet
+# handles deployment, this file handles migrations).
+#
+# This file shouldn't execute any action on its own, all logic should
+# be wrapped into bash functions. Upgrade scripts will source this
+# file and call the functions defined in this file where appropriate.
+#
+# The migration functions should be idempotent. If the migration has
+# been already applied, it should be possible to call the function
+# again without damaging the deployment or failing the upgrade.