Hi Juan, Il 01/12/2015 16:48, Juan Hernández ha scritto:

On 12/01/2015 03:16 PM, Giulio Casella wrote:

...

Hi everybody, I'm trying to enable power management on a host using python, but I'm stuck.

Previously (ovirt 3.5) I directly wrote power management parameters into PowerManagement structure (and everything was working fine), but starting from 3.6 this is not possible.

This is what I do now:

agent = params.Agent() agent.set_options(params.Options()) agent.set_type("ilo3") agent.set_username("admin") agent.set_password("mysecret") agent.set_address("172.20.20.1")

agents=params.Agents() agents.add_agent(agent)

pm=params.PowerManagement() pm.set_agents(agents) pm.set_enabled(True)

myhost=api.hosts.get("myhost") myhost.set_power_management(pm) try: myhost.update() except Exception as e: print "Error: %s" % e

and I get:

Error: status: 400 reason: Bad Request detail: Cannot edit Host. Power Management is enabled for Host but no Agent type selected.

If I dont't enable PM (pm.set_enabled line above) I get no error, but no agent is added.

My software is: - ovirt-engine-3.6.0.3-1.el6 - ovirt-engine-sdk-python-3.6.0.3-1.el6 on a CentOS 6.6 distro.

Any ideas?

Thanks in advance, Giulio

In 3.6 fencing agents have been converted into a sub-collection of the host entity:

https://.../ovirt-engine/api/hosts/{host:id}/fenceagents

This means that the recommended way to add/remove/update fencing agents now in Python is now this:

---8<--- # Find the host: host = api.hosts.get(name="myhost");

# Enable power management: host.get_power_management().set_enabled(True) host.update()

# Add the fencing agent: agent = params.Agent() agent.set_options(params.Options()) agent.set_type("ilo3") agent.set_username("admin") agent.set_password("mysecret") agent.set_address("172.20.20.1") agent.set_order(1); host.fenceagents.add(agent) --->8---

This piece of code is working, thanks! But only if host.update() is called after adding an agent (e.g moving host.update() at the bottom). I don't have any fence agent configured before, and setting enabled=True and calling update, lead to the 400 HTTP error.

You can use this as a workaround. However the mechanism used in 3.5 should continue working in 3.6. If it doesn't it is a bug. The script that you shared is the one you used in 3.5?

In 3.5 I used: myhost=api.hosts.get("myhost") pm=params.PowerManagement(type_="ilo3",enabled=True,address="172.20.20.1",username="admin",password="mysecret") myhost.set_power_management(pm) myhost.update() not working in 3.6 (according to bug https://bugzilla.redhat.com/show_bug.cgi?id=1118329, marked CLOSED WONTFIX, there is no backward compatibility). Anyway I reached my goal, thank you! Giulio