Re: [ovirt-users] Request for oVirt Ansible modules testing feedback

There was a last error in the script : snap_service = snaps_service.snapshot_service(snap.id) instead of snap_service = snaps_service.snap_service(snap.id) For those who are interested in using a full remove_vm_snapshot working script:

# Create the connection to the server: connection = sdk.Connection( url='https://engine/ovirt-engine/api', username='admin@internal', password='passwd', # ca_file='ca.pem', insecure=True, debug=True, log=logging.getLogger(), ) # Locate the virtual machines service and use it to find the virtual # machine: vms_service = connection.system_service().vms_service() vm = vms_service.list(search='name=myvm')[0] # Locate the service that manages the snapshots of the virtual machine: vm_service = vms_service.vm_service(vm.id) snaps_service = vm_service.snapshots_service() snaps = snaps_service.list() snap = [s for s in snaps if s.description == 'My snapshot2'][0] # Remove the snapshot: snap_service = snaps_service.snapshot_service(snap.id) snap_service.remove() # Close the connection to the server: connection.close() Le 06/01/2017 à 14:44, Nathanaël Blanchet a écrit : > > > Le 06/01/2017 à 13:39, Juan Hernández a écrit : > >> On 01/06/2017 12:20 PM, Nathanaël Blanchet wrote: >> >>> >>> 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(a)ecarnot.net >>>>>>> <mailto:nicolas@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 >>> >> I apologize, I wrote that too fast. That is SQL syntax, not Python. In >> python should be "if" instead of "where": >> >> snap = [s for s in snaps if s.description == 'My snapshot2'][0] >> > Thank you, it's ok for now. > >> >> May I use a version 3 of python? >>> >> You SDK supports both Python 2 and Python 3. If you are using the RPMs >> make sure to install the 'python3-ovirt-engine-sdk4' package. >> > > python3-ovirt-engine-sdk4 doesn't exist in repos, only > python-ovirt-engine-sdk4 > Thanks to your explanations, I begin to understand the philosophy of this > sdk, it's far different from sdk3. > What's was wrong with the v3, what was the motivation to write a new > version? > Will it be possible to use the old sdk3 (manually installed) for old > scripts in ovirt 4.2 ? > > >> Note that both are supported, but Python 3 doesn't get a lot of >> attention yet, so you may find issues. If you find any issue with Python >> 3 let as know, as we are committed to make it work. >> >> # 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 >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Users mailing list >>>>>>> Users(a)ovirt.org <mailto:Users@ovirt.org> >>>>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>>>> <http://lists.ovirt.org/mailman/listinfo/users> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Users mailing list >>>>>>> Users(a)ovirt.org >>>>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>>>> >>>>>>> _______________________________________________ >>>>>> Users mailing list >>>>>> Users(a)ovirt.org >>>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>>> >>>>> > -- Nathanaël Blanchet Supervision réseau Pôle Infrastrutures Informatiques 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users