On Mon, Dec 25, 2017 at 8:05 PM, Yaniv Kaul <ykaul@redhat.com> wrote:

On Mon, Dec 25, 2017 at 5:55 PM, Juan Hernández <jhernand@redhat.com> wrote:
On 12/25/2017 04:21 PM, Yaniv Kaul wrote:

I'm trying to check if a certain host can be upgraded.
1. I'm calling it through the host_service, something like:

host_service = connection.system_service().hosts_service().host_service(
host.id)
is_upgrade = host_service.upgrade_check()

To my surprise, is_upgrade is None. I expected a Boolean.

Replied in the bug below, "check-for-upgrade" operation needs to be asynchronous, the only way we could do is to check underlying "check-for-upgrade" job status until completed and afterwards check if updates are availavle directly on the host (and that AFAIK cannot be done automatically inside SDK as SDKs are automatically generated from API).

2. In addition, when trying to upgrade via:
host_service.upgrade()

I'm getting Operation Failed - and it complains there are no upgrades
available.
Alas, in the UI it shows that upgrades available and upgrade does work
through the UI.

So that seems like a bug, because we have a boolean flag inside database if upgrade is available so there should not be any difference between UI and API

Am I misusing the functions?
(The host is a regular host, not ovirt-node btw).

TIA,
Y.

The "upgrade_check" method doesn't return anything, it just triggers the execution of the process to check for upgrades. Then only result will be that an icon will be displayed in the UI.

That isn't very useful, to be honest, so I'd suggest to open a bug to modify this so that the upgrade runs synchronously, and so that the method returns the boolean that you expected.

Filed https://bugzilla.redhat.com/show_bug.cgi?id=1528999 and now looking into the 2nd issue.
Y.

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Martin Perina
Associate Manager, Software Engineering
Red Hat Czech s.r.o.