[jira] [Created] (LIBCLOUD-707) CloudSigma driver throws exception when parsing response in list_nodes

["Chris O'Brien (JIRA)" <ji...@apache.org>]

Chris O'Brien created LIBCLOUD-707:
--------------------------------------

             Summary: CloudSigma driver throws exception when parsing response in list_nodes
                 Key: LIBCLOUD-707
                 URL: https://issues.apache.org/jira/browse/LIBCLOUD-707
             Project: Libcloud
          Issue Type: Bug
          Components: Compute
    Affects Versions: 0.13.3, 0.14.0-beta3, 0.15.0, 0.15.1
            Reporter: Chris O'Brien


While attempting to parse the IPs from a node's NICs in CloudSigma's API response, libcloud throws an exception when the node's IP is static: 

{noformat}
TypeError: unhashable type: 'dict'
File "/home/dbs_support/dev/libcloudsigma/test.py", line 55, in <module>
  instances = deployer.getInstances()
File "/home/dbs_support/dev/libcloudsigma/test.py", line 44, in getInstances
  return self.driver.list_nodes()
File "/home/dbs_support/lib/libcloud/compute/drivers/cloudsigma.py", line 1026, in list_nodes
  nodes = [self._to_node(data=item) for item in response['objects']]
File "/home/dbs_support/lib/libcloud/compute/drivers/cloudsigma.py", line 1910, in _to_node
  _public_ips, _private_ips = self._parse_ips_from_nic(nic=nic)
File "/home/dbs_support/lib/libcloud/compute/drivers/cloudsigma.py", line 1888, in _parse_ips_from_nic
  ips = set(ips)
{noformat}

It seems that libcloud doesn't account for CloudSigma's response for static IPs containing the 'uuid' as a subobject of 'ip' in the 'ip_v4_conf' for a NIC.  
For example, a NIC with a static IP belonging to a server:
{noformat}
{
    "firewall_policy":null,
    "boot_order":null,
    "vlan":null,
    "ip_v4_conf":{
        "ip":{
            "uuid":"178.22.68.44",
            "resource_uri":"/api/2.0/ips/178.22.68.44/"
        },
        "conf":"static"
    },
    "mac":"22:9d:42:9d:30:2f",
    "model":"virtio",
    "runtime":{
        "interface_type":"public",
        "ip_v4":{
            "uuid":"178.22.68.44",
            "resource_uri":"/api/2.0/ips/178.22.68.44/"
        },
        "io":{
            "bytes_sent":403849752,
            "packets_sent":6089897,
            "bytes_recv":1348149166,
            "packets_recv":1144445
        },
        "ip_v6":null
    },
    "ip_v6_conf":null
}
{noformat}

The NIC's {{\['ip_v4_conf'\]\['ip'\]}} object (which is a dict) gets put into a list (ips) with other strings (representing IPs).  It chokes when attempting to convert this list containing both dicts and strings into a set.  



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