fab setup_all fails in mount_glance_images in HA topology with only TSN nodes

[tom murray]

This is with Contrail Openstack 2.20/64 juno in a HA toplogy

The fab_setup_all fails with:

2015-06-30 23:42:35:499116: Traceback (most recent call last):
2015-06-30 23:42:35:980784: File "/usr/local/lib/python2.7/dist-packages/fabric/main.py", line 743, in main
2015-06-30 23:42:35:980858: *args, **kwargs
2015-06-30 23:42:35:981132: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 375, in execute
2015-06-30 23:42:35:981191: multiprocessing
2015-06-30 23:42:35:981356: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 271, in _execute
2015-06-30 23:42:35:981387: return task.run(*args, **kwargs)
2015-06-30 23:42:35:981503: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 171, in run
2015-06-30 23:42:35:981534: return self.wrapped(*args, **kwargs)
2015-06-30 23:42:35:981619: File "/usr/local/lib/python2.7/dist-packages/fabric/decorators.py", line 53, in inner_decorator
2015-06-30 23:42:35:981647: return func(*args, **kwargs)
2015-06-30 23:42:35:981709: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 168, in __call__
2015-06-30 23:42:35:981736: return self.run(*args, **kwargs)
2015-06-30 23:42:35:981822: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 171, in run
2015-06-30 23:42:35:981851: return self.wrapped(*args, **kwargs)
2015-06-30 23:42:35:981944: File "/opt/contrail/utils/fabfile/tasks/provision.py", line 2110, in setup_all
2015-06-30 23:42:35:981988: execute('setup_ha')
2015-06-30 23:42:35:982725: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 375, in execute
2015-06-30 23:42:35:982759: multiprocessing
2015-06-30 23:42:35:982915: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 271, in _execute
2015-06-30 23:42:35:982942: return task.run(*args, **kwargs)
2015-06-30 23:42:35:983058: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 171, in run
2015-06-30 23:42:35:983088: return self.wrapped(*args, **kwargs)
2015-06-30 23:42:35:983176: File "/usr/local/lib/python2.7/dist-packages/fabric/decorators.py", line 53, in inner_decorator
2015-06-30 23:42:35:983205: return func(*args, **kwargs)
2015-06-30 23:42:35:983273: File "/opt/contrail/utils/fabfile/tasks/ha.py", line 565, in setup_ha
2015-06-30 23:42:35:983305: execute('setup_glance_images_loc')
2015-06-30 23:42:35:983552: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 415, in execute
2015-06-30 23:42:35:983579: results['<local-only>'] = task.run(*args, **new_kwargs)
2015-06-30 23:42:35:983735: File "/usr/local/lib/python2.7/dist-packages/fabric/tasks.py", line 171, in run
2015-06-30 23:42:35:983869: return self.wrapped(*args, **kwargs)
2015-06-30 23:42:35:984039: File "/opt/contrail/utils/fabfile/tasks/ha.py", line 105, in setup_glance_images_loc
2015-06-30 23:42:35:984073: nfs_server = get_nfs_server()
2015-06-30 23:42:35:984165: File "/opt/contrail/utils/fabfile/tasks/ha.py", line 85, in get_nfs_server
2015-06-30 23:42:35:984192: raise RuntimeError("Please specifiy a NFS Server, No computes can be used as NFS server.")
2015-06-30 23:42:35:984272: RuntimeError: Please specifiy a NFS Server, No computes can be used as NFS server.

This is with a testbed.py like:

#Role definition of the hosts.
env.roledefs = {
    'all': [host0, host1, host2, host3, host4],
    'cfgm': [host0, host1, host2],
    'openstack': [host0, host1, host2],
    'control': [host0, host1, host2],
    'compute': [host3, host4],
    'collector': [host0, host1, host2],
    'webui': [host0, host1, host2],
    'database': [host0, host1, host2],
    'build': [host_build],
    'storage-master': [host0, host1, host2],
    'storage-compute': [host3, host4],
    'tsn': [host3, host4],
    'toragent': [host3, host4]
}

...
env.ha = {
    'internal_vip' : '172.26.10.242', #Internal Virtual IP of the openstack HA Nodes.
    'external_vip' : '10.33.5.242', #External Virtual IP of the openstack HA Nodes.
    #'contrail_internal_vip' : '172.26.10.242', #Internal Virtual IP of the contrail HA Nodes.
    #'contrail_external_vip' : '10.33.5.242', #External Virtual IP of the contrail HA Nodes.
    'nfs_server' : '10.33.5.204', #IP address of the NFS Server which will be mounted to /var/lib/glance/images of openstack Node, Defaults to env.roledefs['compute'][0]
# 'nfs_glance_path' : '/var/tmp/images/', #NFS Server path to save images, Defaults to /var/tmp/glance-images/
}

The reason that this fails is because every compute node is also a TSN node. There is a bug in the fabfile/tasks/ha.py where an exception is raised in the get_nfs_server() function that causes the mount_glance_images() and setup_glance_images_loc() functions to abort. The env.ha[ 'nfs_server' ] never gets used. when there are not non-TSN computes.

[OpenContrail Admin (ci-admin-f)]

bug update...