Use stevedore for scheduler host manager

Avoid having to configure the full class path of host manager using classloader. Change to load the class by stevedore driver plugin using entrypoints. Change 'scheduler_host_manager' to use entrypoint with the namespace 'nova.scheduler.host_manager' in 'setup.cfg'. Meanwhile, still maintain the compatibility for class path configuration until the next major release. UpgradeImpact - see the reno file attached. Change-Id: I3fd42ead44487a21eb5cfaf5a91209277ce30ad0 Partially-Implements: blueprint scheduler-driver-use-stevedore
2015-11-17 07:27:34 +00:00
parent a943c8b833
commit 158c6d64c2
5 changed files with 104 additions and 7 deletions
@@ -187,6 +187,10 @@ nova.ipv6_backend =
    rfc2462 = nova.ipv6.rfc2462
    account_identifier = nova.ipv6.account_identifier

+nova.scheduler.host_manager =
+    host_manager = nova.scheduler.host_manager:HostManager
+    ironic_host_manager = nova.scheduler.ironic_host_manager:IronicHostManager
+
 [build_sphinx]
 all_files = 1
 build-dir = doc/build