Open Stack

Hello Amit,

    Happy to hear the code snip helped, I am using Python3 and the build in
configparser: https://docs.python.org/3/library/configparser.html. If you
are using Python2 the syntax is slightly different.

I have a config file that looks like this:
--snip--
[DEFAULT]
verify_certs = false

[influxdb]
host = <influx_host>
port = 8086
database_name = openstackstackstats
username = openstack
password = <password>

[allocation_ratio]
cpu_allocation_ratio = 6.0
ram_allocation_ratio = 2.0
disk_allocation_ratio = 2.0
#https://blueprints.launchpad.net/nova/+spec/add-ratio-to-hypervisor-show
#
https://review.openstack.org/#/c/350344/1/specs/ocata/implemented/add-ratio-to-hypervisor-show.rst
#This values are provided via the API in Ocata
--snip--


Then in my code I have the following, the "config" variable below is the
configobj that gets passed into the method "def _create_connection(self,
cloud_params, configobj):"
--snip--
....
import configparser
....
def main():

    config_paths = [
        '/etc/openstackstats.conf',
        '%s/openstackstats.conf' % (os.path.expanduser("~")),
    ]

    options = parse_options()
    ....

    log.debug("Default config file search paths:")
    for cfg in config_paths:
        log.debug("Will attempt to load: %s" % (cfg))

    ....
    config = configparser.ConfigParser()
    configs_found = config.read(config_paths)

    if len(configs_found) < 1:
        log.critical("No configuration files found")
        sys.exit(1)

    for cfg in configs_found:
        log.debug("Loaded configuration: %s" % (cfg))

    cloud_params = _load_openrc(log)
    stats = StatsManager(cloud_params, config)
    stats.processstats()
--snip--

I hope this helps :)

Michael

On Sat, Mar 4, 2017 at 9:05 AM, Amit Kumar <ebiibe82 at gmail.com> wrote:

> Thanks Michael for providing the code snippet. It was of great help. I was
> doing things as expected but missed to set interface in profile.
>
> Could you please provide some reference to what configparser object. I am
> using code provided by you except setting config parser object and getting
> SSL error when setting 'keystone' interface as 'public'. Error is pasted
> here: http://paste.openstack.org/show/601428/
>
> I am using auth_url as 'https://192.168.255.45:5000/v3'. 192.168.255.45
> is public interface. But when I am setting 'keystone' interface as
> 'internal' with internal ip 172.29.236.11, connection is successful. Seems
> this SSL error be related to config parser object.
>
> Regards,
> Amit
>
>
> On Sat, Mar 4, 2017 at 2:12 AM, Michael Gale <gale.michael at gmail.com>
> wrote:
>
>> Hey,
>>
>>     Here is how I am authenticating using openstacksdk:
>>
>> --snip--
>> from openstack import connection
>> from openstack import profile
>> from openstack import utils
>>
>> def _create_connection(self, cloud_params, configobj):
>>
>>         auth_args = {
>>             'auth_url' : cloud_params['OS_AUTH_URL'],
>>             'username' : cloud_params['OS_USERNAME'],
>>             'password' : cloud_params['OS_PASSWORD'],
>>             'project_name' : cloud_params['OS_PROJECT_NAME'],
>>             'user_domain_name' : cloud_params['OS_USER_DOMAIN_NAME'],
>>             'project_domain_name' : cloud_params['OS_USER_DOMAIN_NAME'],
>>         }
>>
>>         prof = profile.Profile()
>>         prof.set_region(profile.Profile.ALL,
>> cloud_params['OS_REGION_NAME'])
>>         prof.set_interface('identity', 'public')
>>
>>         log.info("Authenticating against: %s" %
>> (cloud_params['OS_AUTH_URL']))
>>         log.debug("Authenticating project: %s" %
>> (cloud_params['OS_PROJECT_NAME']))
>>
>>         conn = connection.Connection(
>>             profile=prof,
>>             verify=configobj.getboolean('DEFAULT', 'verify_certs'),
>>             user_agent='openstatstats',
>>             **auth_args
>>         )
>>
>>         log.info("Authentication successful")
>>
>>         return conn
>> --snip--
>>
>> cloud_params is a dictionary with the OS_* vars loaded from the
>> environment vars, configobj is a configparser object.
>>
>> Michael
>>
>>
>>
>> On Fri, Mar 3, 2017 at 4:12 AM, Amit Kumar <ebiibe82 at gmail.com> wrote:
>>
>>> Andy, thanks for your response.
>>>
>>> Address is reachable. I am running Horizon UI on this address
>>> successfully. I used "http" whereas it should be "https" but it is not
>>> working currently with https as well.
>>>
>>> Anyways, I tried the script from utility container where openstack
>>> command line client is successful in executing the commands but python sdk
>>> connection is failing with following error:
>>>
>>> *"openstack.exceptions.HttpException: HttpException: Expecting to find
>>> domain in project - the server could not comply with the request since it
>>> is either malformed or otherwise incorrect. The client is assumed to be in
>>> error."*
>>>
>>> On noting the difference in wireshark traces, openstack command line
>>> client is adding "domain" related information in request but this domain
>>> related information is missing while attempting connection using python SDK.
>>>
>>> @openstack-sdk, could anyone provide information that how to add domain
>>> related information while attempting connection using python sdk.
>>>
>>> Regards,
>>> Amit
>>>
>>>
>>> On Thu, Mar 2, 2017 at 8:54 PM, Andy McCrae <andy.mccrae at gmail.com>
>>> wrote:
>>>
>>>> Hi Amit,
>>>>
>>>> Sending it again to include the ML!
>>>>
>>>> On 2 March 2017 at 11:01, Amit Kumar <ebiibe82 at gmail.com> wrote:
>>>>
>>>>> Hi All,
>>>>>
>>>>> I have deployed Openstack using Openstack-Ansible. I am using Newton
>>>>> release from tag 14.0.8. My test environment is containing only Compute
>>>>> Node and Controller Node (Infra Node).
>>>>> When using Openstack Python SDK, I am getting following error while
>>>>> making connection to external_vib_lp_address (192.168.255.45) binded to
>>>>> port 5000.
>>>>>
>>>>> *openstack.exceptions.SDKException: Connection failure that may be
>>>>> retried.*
>>>>>
>>>>
>>>> Based on the error this is a connection issue -  have you tested
>>>> manually connecting to the external address you listed on that port?
>>>> A good place to start would be to start looking at why it can't connect
>>>> and seeing if you can manually connect outside of using the SDK.
>>>>
>>>> Are you trying to connect from a separate host to the OpenStack
>>>> environment? If so can you even access 192.168.255.45?
>>>>
>>>> If you're still having issues feel free to jump into #openstack-ansible
>>>> on Freenode and hopefully you'll be able to get more help there!
>>>>
>>>> Andy
>>>>
>>>
>>>
>>> _______________________________________________
>>> Mailing list: http://lists.openstack.org/cgi
>>> -bin/mailman/listinfo/openstack
>>> Post to     : openstack at lists.openstack.org
>>> Unsubscribe : http://lists.openstack.org/cgi
>>> -bin/mailman/listinfo/openstack
>>>
>>>
>>
>>
>> --
>>
>> “The Man who says he can, and the man who says he can not.. Are both
>> correct”
>>
>
>


-- 

“The Man who says he can, and the man who says he can not.. Are both
correct”
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