Re: [ovirt-users] Power Management with python SDK
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---
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?
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