[ovirt-users] Request for oVirt Ansible modules testing feedback
Nathanaël Blanchet
blanchet at abes.fr
Fri Jan 6 11:20:30 UTC 2017
Le 04/01/2017 à 18:55, Juan Hernández a écrit :
> On 01/04/2017 05:38 PM, Nathanaël Blanchet wrote:
>>
>> Le 04/01/2017 à 15:41, Juan Hernández a écrit :
>>> On 01/04/2017 12:30 PM, Yaniv Kaul wrote:
>>>> On Wed, Jan 4, 2017 at 1:04 PM, Nicolas Ecarnot <nicolas at ecarnot.net
>>>> <mailto:nicolas at ecarnot.net>> wrote:
>>>>
>>>> Hello,
>>>>
>>>> Le 04/01/2017 à 11:49, Nathanaël Blanchet a écrit :
>>>>
>>>>
>>>>
>>>> Le 04/01/2017 à 10:09, Andrea Ghelardi a écrit :
>>>>
>>>>
>>>> Personally I don’t think ansible and ovirt-shell are
>>>> mutually exclusive.
>>>>
>>>> Those who are in ansible and devops realms are not really
>>>> scared by
>>>> making python/ansible work with ovirt.
>>>>
>>>> From what I gather, playbooks are quite a de-facto
>>>> pre-requisite to
>>>> build up a real SaaC “Software as a Code” environment.
>>>>
>>>>
>>>>
>>>> On the other hand, ovirt-shell can and is a fast/easy
>>>> way to
>>>> perform
>>>> “normal daily tasks”.
>>>>
>>>> totally agree but ovirt-shell is deprecated in 4.1 et will be
>>>> removed in
>>>> 4.2. Ansible or sdk4 are proposed as an alternative.
>>>>
>>>>
>>>> Could someone point me to an URL where sdk4 is fully documented, as
>>>> I have to get ready for ovirt-shell deprecation?
>>>>
>>>>
>>>> The Rest API is partially documented under https://<engine>/api/model .
>>>> It's not complete yet. All new features in 4.0 are documented and we are
>>>> working on the 'older' features now.
>>>> (contributions are welcome!)
>>>>
>>>>
>>>> I'm sure no one at Redhat thought about deprecating a tool in favor
>>>> of a new one before providing a complete user doc!
>>>>
>>>>
>>>> In addition, the SDK RPM itself contains many examples. See [1].
>>>> (contributions are welcome!)
>>>>
>>>> Y.
>>>>
>>>> [1] https://github.com/oVirt/ovirt-engine-sdk/tree/master/sdk/examples
>>>>
>> Although these examples, I can successfully create a snapshot, but I
>> didn't find the way to delete it...
>> Regarding many example, it should be possible to locate any service by :
>> name_service = connection.system_service().name.service()
>>
>> So logically it should be doable with snapshot like
>> snapshots_service = connection.system_service().snapshots.service()
>> but : AttributeError: 'SystemService' object has no attribute 'snapshots
>>
> In the SDK the services are arranged in a tree structure that mimics the
> URL structure of the API. For example, if you want to get the service
> that manages a particular snapshot, in the API you would use an URL like
> this:
>
> /ovirt-engine/api/vms/123/snapshots/456
>
> In the Python SDK that translates into this:
>
> snap_service = connection.system_service() \
> .vms_service() \
> .vm_service('123') \
> .snapshots_service() \
> .snapshot_service('456')
>
> There is also a generic "service" method that is useful when you already
> have all that path as an string:
>
> snap_service = connection.service("vms/123/snapshots/456")
>
> Both return exactly the same object. The first is usually better when
> you are calculating the path of the object step by step, and I generally
> prefer it as it is less error prone.
>
> Once you have the reference to the service, you can use the 'remove' method:
>
> snap_service.remove()
>
> If you need to search by the names of the objects, then you can use the
> 'search' methods, which are only available for the top level objects,
> like VM, data centers, clusters, etc. For example, to find your virtual
> machine and then the snapshot:
>
> # Get the root service:
> system_service = connection.system_service()
>
> # Find the virtual machine:
> vms_service = system_service.vms_service()
> vm = vms_service.list(search='name=myvm')[0]
>
> # Find the snapshot:
> vm_service = vms_service.vm_service(vm.id)
> snaps_service = vm_service.snapshots_service()
> snaps = snaps_service.list()
> snap = [s for s in snaps where s.description == 'My snap'][0]
sounds good, thank so much for taking time to explain, but for the last
entry, I get ;
snap = [s for s in snaps where s.description == 'My snapshot2'][0]
^
SyntaxError: invalid syntax
May I use a version 3 of python?
> # Remove the snapshot:
> snap_service = snaps_service.snap_service(snap.id)
> snap_service.remove()
>
>> I saw an example into the ansible [ working ] way to do the same thing
>> and I found this :
>> snapshot =
>> snapshots_service.snapshot_service(module.params['snapshot_id']).get()
>>
>> How can I get this working with sdk, I mean giving snapshot_id as a
>> parameter?
>>
>>
>>> Also the complete reference documentation of the Python SDK is available
>>> here:
>>>
>>> http://ovirt.github.io/ovirt-engine-sdk/v4.0/4.0.3/index.html
>>>
>>> There also SDKs for Ruby and Java, in case Python is not your preferred
>>> language:
>>>
>>> Ruby:
>>> https://github.com/oVirt/ovirt-engine-sdk-ruby/tree/master/sdk
>>>
>>> https://github.com/oVirt/ovirt-engine-sdk-ruby/tree/master/sdk/examples
>>> http://www.rubydoc.info/gems/ovirt-engine-sdk
>>>
>>> Java:
>>> https://github.com/oVirt/ovirt-engine-sdk-java/tree/master/sdk
>>>
>>> https://github.com/oVirt/ovirt-engine-sdk-java/tree/master/sdk/src/test/java/org/ovirt/engine/sdk4/examples
>>>
>>> http://www.javadoc.io/doc/org.ovirt.engine.api/sdk
>>>
>>>> --
>>>> Nicolas ECARNOT
>>>>
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>>>>
>>>>
>>>>
>>>>
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--
Nathanaël Blanchet
Supervision réseau
Pôle Infrastrutures Informatiques
227 avenue Professeur-Jean-Louis-Viala
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Fax 33 (0)4 67 54 84 14
blanchet at abes.fr
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