There was a last error in the script :
snap_service = snaps_service.snapshot_service(snap.id) instead of snap_service = snaps_service.snap_service(sna p.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:Thank you, it's ok for now.
I apologize, I wrote that too fast. That is SQL syntax, not Python. In
Le 04/01/2017 à 18:55, Juan Hernández a écrit :
On 01/04/2017 05:38 PM, Nathanaël Blanchet wrote:sounds good, thank so much for taking time to explain, but for the last
Le 04/01/2017 à 15:41, Juan Hernández a écrit :In the SDK the services are arranged in a tree structure that mimics the
On 01/04/2017 12:30 PM, Yaniv Kaul wrote:Although these examples, I can successfully create a snapshot, but I
On Wed, Jan 4, 2017 at 1:04 PM, Nicolas Ecarnot <nicolas@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
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
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]
entry, I get ;
snap = [s for s in snaps where s.description == 'My snapshot2'][0]
^
SyntaxError: invalid syntax
python should be "if" instead of "where":
snap = [s for s in snaps if s.description == 'My snapshot2'][0]
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.htm l
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
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