def test_get_role_relations(self):
"""Should return role dependencies when roles with relationships are given"""
prod_nodes = chef.filter_nodes(self.nodes, "production")
extra_roles = graphs.get_role_relations("production", "dbserver", prod_nodes)
self.assertEqual(extra_roles, ["webserver", "worker"])
extra_roles = graphs.get_role_relations("production", "loadbalancer", prod_nodes)
self.assertEqual(extra_roles, ["webserver"])
extra_roles = graphs.get_role_relations("production", "worker", prod_nodes)
self.assertEqual(extra_roles, ["dbserver"])
extra_roles = graphs.get_role_relations("production", "webserver", prod_nodes)
self.assertEqual(extra_roles, ["dbserver", "loadbalancer"])
def test_get_role_relations(self):
"""Should return role dependencies when roles with relationships are given"""
prod_nodes = chef.filter_nodes(self.nodes, 'production')
extra_roles = graphs.get_role_relations('production', 'dbserver',
prod_nodes)
self.assertEqual(extra_roles, ['webserver', 'worker'])
extra_roles = graphs.get_role_relations('production', 'loadbalancer',
prod_nodes)
self.assertEqual(extra_roles, ['webserver'])
extra_roles = graphs.get_role_relations('production', 'worker',
prod_nodes)
self.assertEqual(extra_roles, ['dbserver'])
extra_roles = graphs.get_role_relations('production', 'webserver',
prod_nodes)
self.assertEqual(extra_roles, ['dbserver', 'loadbalancer'])
def graph(request):
"""Graph view where users can visualize graphs of their nodes
generated using Graphviz open source graph visualization library
"""
_show_repo_sync_date(request)
data = {}
options = _set_options(request.GET.get('options'))
env_filter = request.GET.get('env', REPO['DEFAULT_ENV'])
roles_filter = request.GET.get('roles', '')
env_nodes = []
try:
data = _get_data(request, env_filter, '', 'guest')
except RepoError as e:
add_message(request, ERROR, str(e))
else:
if env_filter:
env_nodes = data['nodes_extended']
if roles_filter:
# Filter the env nodes by role
data['nodes_extended'] = filter_nodes(data['nodes_extended'],
roles=roles_filter)
data['filter_roles'] = roles_filter
success, msg = graphs.generate_node_map(
data['nodes_extended'], data.get('roles', []),
'show_hostnames' in options)
data['draw_graph'] = success
if not success:
add_message(request, ERROR, msg)
else:
data['related_roles'] = graphs.get_role_relations(env_filter,
roles_filter,
env_nodes)
else:
add_message(request, WARNING, "Please select an environment")
data['show_hostnames'] = 'show_hostnames' in options
data['query_string'] = request.META['QUERY_STRING']
return render_to_response('graph.html',
data, context_instance=RequestContext(request))
def test_get_role_relations_empty_when_no_roles(self):
"""Should obtain no roles when a role filter list is not given"""
prod_nodes = chef.filter_nodes(self.nodes, 'staging')
extra_roles = graphs.get_role_relations('production', '', prod_nodes)
self.assertEqual(extra_roles, [])
def test_get_role_relations_empty_when_roles(self):
"""Should obtain no roles when the given roles have no extra relationships"""
stag_nodes = chef.filter_nodes(self.nodes, 'staging')
extra_roles = graphs.get_role_relations('staging', 'webserver',
stag_nodes)
self.assertEqual(extra_roles, [])