Add host aggregate / av zones util functions

Add functionality for creating, getting and deleting host aggregates and
availability zones.

Change-Id: I6717ba865cf1e8565ca4559c71cb112d0d6a132e
Signed-off-by: George Paraskevopoulos <geopar@intracom-telecom.com>

diff --git a/functest/utils/openstack_utils.py b/functest/utils/openstack_utils.py
index df6fb5d..6f0c5fb 100755 (executable)
--- a/functest/utils/openstack_utils.py
+++ b/functest/utils/openstack_utils.py
@@ -218,6 +218,45 @@ def get_flavor_id_by_ram_range(nova_client, min_ram, max_ram):
     return id
 
 
+def get_aggregates(nova_client):
+    try:
+        aggregates = nova_client.aggregates.list()
+        return aggregates
+    except Exception, e:
+        logger.error("Error [get_aggregates(nova_client)]: %s" % e)
+        return None
+
+
+def get_aggregate_id(nova_client, aggregate_name):
+    try:
+        aggregates = get_aggregates(nova_client)
+        _id = [ag.id for ag in aggregates if ag.name == aggregate_name][0]
+        return _id
+    except Exception, e:
+        logger.error("Error [get_aggregate_id(nova_client, %s)]:"
+                     " %s" % (aggregate_name, e))
+        return None
+
+
+def get_availability_zones(nova_client):
+    try:
+        availability_zones = nova_client.availability_zones.list()
+        return availability_zones
+    except Exception, e:
+        logger.error("Error [get_availability_zones(nova_client)]: %s" % e)
+        return None
+
+
+def get_availability_zone_names(nova_client):
+    try:
+        az_names = [az.zoneName for az in get_availability_zones(nova_client)]
+        return az_names
+    except Exception, e:
+        logger.error("Error [get_availability_zone_names(nova_client)]:"
+                     " %s" % e)
+        return None
+
+
 def create_flavor(nova_client, flavor_name, ram, disk, vcpus, public=True):
     try:
         flavor = nova_client.flavors.create(
@@ -281,6 +320,40 @@ def get_hypervisors(nova_client):
         return None
 
 
+def create_aggregate(nova_client, aggregate_name, av_zone):
+    try:
+        nova_client.aggregates.create(aggregate_name, av_zone)
+        return True
+    except Exception, e:
+        logger.error("Error [create_aggregate(nova_client, %s, %s)]: %s"
+                     % (aggregate_name, av_zone, e))
+        return None
+
+
+def add_host_to_aggregate(nova_client, aggregate_name, compute_host):
+    try:
+        aggregate_id = get_aggregate_id(nova_client, aggregate_name)
+        nova_client.aggregates.add_host(aggregate_id, compute_host)
+        return True
+    except Exception, e:
+        logger.error("Error [add_host_to_aggregate(nova_client, %s, %s)]: %s"
+                     % (aggregate_name, compute_host, e))
+        return None
+
+
+def create_aggregate_with_host(
+        nova_client, aggregate_name, av_zone, compute_host):
+    try:
+        create_aggregate(nova_client, aggregate_name, av_zone)
+        add_host_to_aggregate(nova_client, aggregate_name, compute_host)
+        return True
+    except Exception, e:
+        logger.error("Error [create_aggregate_with_host("
+                     "nova_client, %s, %s, %s)]: %s"
+                     % (aggregate_name, av_zone, compute_host, e))
+        return None
+
+
 def create_instance(flavor_name,
                     image_id,
                     network_id,
@@ -403,6 +476,36 @@ def delete_floating_ip(nova_client, floatingip_id):
         return False
 
 
+def remove_host_from_aggregate(nova_client, aggregate_name, compute_host):
+    try:
+        aggregate_id = get_aggregate_id(nova_client, aggregate_name)
+        nova_client.aggregates.remove_host(aggregate_id, compute_host)
+        return True
+    except Exception, e:
+        logger.error("Error [remove_host_from_aggregate(nova_client, %s, %s)]:"
+                     " %s" % (aggregate_name, compute_host, e))
+        return False
+
+
+def remove_hosts_from_aggregate(nova_client, aggregate_name):
+    aggregate_id = get_aggregate_id(nova_client, aggregate_name)
+    hosts = nova_client.aggregates.get(aggregate_id).hosts
+    assert(
+        all(remove_host_from_aggregate(nova_client, aggregate_name, host)
+            for host in hosts))
+
+
+def delete_aggregate(nova_client, aggregate_name):
+    try:
+        remove_hosts_from_aggregate(nova_client, aggregate_name)
+        nova_client.aggregates.delete(aggregate_name)
+        return True
+    except Exception, e:
+        logger.error("Error [delete_aggregate(nova_client, %s)]: %s"
+                     % (aggregate_name, e))
+        return False
+
+
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 #   NEUTRON
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