[Kimchi-devel] [PATCH] [Kimchi 1/2] Enhancement to /plugins/kimchi/interfaces

Suresh Babu Angadi sureshab at linux.vnet.ibm.com
Wed Aug 31 05:31:09 UTC 2016



On 08/30/2016 11:42 PM, Archana Singh wrote:
> Hi Aline,
>
> Please find my understanding inline.
>
> Thanks,
>
> Archana Singh
>
>
> On 08/30/2016 10:26 PM, Aline Manera wrote:
>>
>>
>> On 08/30/2016 07:20 AM, sureshab at linux.vnet.ibm.com wrote:
>>> From: Suresh Babu Angadi <sureshab at in.ibm.com>
>>>
>>> Per RFC: [Kimchi-devel] [RFC] changes to /plugins/kimchi/interfaces
>>>
>>> * this patch includes backend changes to add '_inuse' filter
>>> * Updated API.md to include '_inuse' filter for /interfaces Collection
>>> * modified api call to plugins/kimchi/interfaces?_inuse=false in
>>>    kimchi.api.js, since unused interfaces are used to create virtual 
>>> network
>>>
>>> Signed-off-by: Suresh Babu Angadi <sureshab at in.ibm.com>
>>> ---
>>>   docs/API.md             |  3 +++
>>>   i18n.py                 |  1 +
>>>   model/interfaces.py     | 20 ++++++++++++++++----
>>>   ui/js/src/kimchi.api.js |  2 +-
>>>   4 files changed, 21 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/docs/API.md b/docs/API.md
>>> index 7bd677f..357c2b8 100644
>>> --- a/docs/API.md
>>> +++ b/docs/API.md
>>> @@ -656,6 +656,9 @@ A interface represents available network 
>>> interface on VM.
>>>   **Methods:**
>>>
>>>   * **GET**: Retrieve a summarized list of current Interfaces
>>> +    * Parameters: _inuse:  Filter interfaces list with 
>>> availability. Currently supports true | false.
>>> +                'true' option lists interfaces used by virtual 
>>> networks,'false' option lists all
>>> +                interfaces which are not currently in use by 
>>> virtual networks.
>>>
>>>   ### Resource: Interface
>>>
>>> diff --git a/i18n.py b/i18n.py
>>> index e8d9c05..aee6ead 100644
>>> --- a/i18n.py
>>> +++ b/i18n.py
>>> @@ -257,6 +257,7 @@ messages = {
>>>       "KCHVOL0029E": _("Unable to upload chunk data to storage 
>>> volume. Details: %(err)s."),
>>>
>>>       "KCHIFACE0001E": _("Interface %(name)s does not exist"),
>>> +    "KCHIFACE0002E": _("Failed to list interfaces. Invalid _inuse 
>>> parameter. Supported options for _inuse are: %(supported_inuse)s"),
>>>
>>>       "KCHNET0001E": _("Network %(name)s already exists"),
>>>       "KCHNET0002E": _("Network %(name)s does not exist"),
>>> diff --git a/model/interfaces.py b/model/interfaces.py
>>> index 2d74fd4..6be4356 100644
>>> --- a/model/interfaces.py
>>> +++ b/model/interfaces.py
>>> @@ -17,10 +17,11 @@
>>>   # License along with this library; if not, write to the Free Software
>>>   # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  
>>> 02110-1301 USA
>>>
>>> -from wok.exception import NotFoundError
>>> +from wok.exception import InvalidParameter, NotFoundError
>>>
>>>   from wok.plugins.gingerbase import netinfo
>>>   from wok.plugins.kimchi.model.networks import NetworksModel
>>> +from wok.utils import wok_log
>>>
>>>
>>>   class InterfacesModel(object):
>>> @@ -28,9 +29,20 @@ class InterfacesModel(object):
>>>           self.conn = kargs['conn']
>>>           self.networks = NetworksModel(**kargs)
>>>
>>> -    def get_list(self):
>>> -        return list(set(netinfo.all_favored_interfaces()) -
>>> - set(self.networks.get_all_networks_interfaces()))
>>> +    def get_list(self, _inuse=None):
>>> +        if _inuse == "true":
>>> +            return list(set(netinfo.all_favored_interfaces()) &
>>> + set(self.networks.get_all_networks_interfaces()))
>>> +        elif _inuse == "false":
>>> +            return list(set(netinfo.all_favored_interfaces()) -
>>> + set(self.networks.get_all_networks_interfaces()))
>>> +        elif _inuse is None:
>>> +            return list(set(netinfo.all_favored_interfaces()))
>>> +        else:
>>
>> Should't the case of "_inuse == true" be the same of "_unse == None" ?
>>
>> So we could simplify the code as below:
>>
>> if _inuse == false:
>>    return list(set(netinfo.all_favored_interfaces())
>> set(self.networks.get_all_networks_interfaces()))
>>
>> return list(set(netinfo.all_favored_interfaces()))
>>
>> Tip: You don't need the 'else' statement when you have a 'return' in 
>> the 'if' statement.
> If I understood correctly, in case of _inuse filter is not passed(i.e 
> None), it should list all favored interfaces (i.e both in use and not  
> in use)
> in case of _inuse=true, it should list interfaces which are already 
> used by virtual networks, i.e only those favored interfaces which are 
> present in set(self.networks.get_all_networks_interfaces()))
> in case of _inuse=false, it should list interfaces which are not used 
> by virtual networks, i.e only those favored interfaces which are not 
> present in set(self.networks.get_all_networks_interfaces()).
Thanks Archana for the explanation.
In short,
no filter -- all host interfaces
_inuse=true ---interfaces currently in use by virtual networks
_inuse=false ---interfaces not in use by virtual networks
>
>>
>>> +            wok_log.error("Invalid filter _inuse. _inuse: %s. 
>>> Supported"
>>> +                          " options are %s" % (_inuse, 'true/false'))
>>> +            raise InvalidParameter("KCHIFACE0002E",
>>> +                                   {'supported_inuse': ['true', 
>>> 'false']}) 
> Also it ensures that if _inuse is passed it should only be true or 
> false or it should not be passed, other value if passed in _inuse 
> filter then it should throw error.
>
correct.
>>>
>>>
>>>   class InterfaceModel(object):
>>> diff --git a/ui/js/src/kimchi.api.js b/ui/js/src/kimchi.api.js
>>> index 740d922..fd3e5d7 100644
>>> --- a/ui/js/src/kimchi.api.js
>>> +++ b/ui/js/src/kimchi.api.js
>>> @@ -626,7 +626,7 @@ var kimchi = {
>>>
>>>       getInterfaces : function(suc, err) {
>>>           wok.requestJSON({
>>> -            url : 'plugins/kimchi/interfaces',
>>> +            url : 'plugins/kimchi/interfaces?_inuse=false',
>>>               type : 'GET',
>>>               contentType : 'application/json',
>>>               dataType : 'json',
>>
>> _______________________________________________
>> Kimchi-devel mailing list
>> Kimchi-devel at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/kimchi-devel
>>
>

-- 
Regards,
Suresh Babu Angadi




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