MAAS Fails to Connect to LXD Host

[Hakan Saplakoglu]

Recreate:
1. Add new LXD Pod
2. Fill in info
3. Click "Add KVM"

When I do this I get an error: Failed talking to pod: 'ports'. I'm not sure what this means. I was unable to find any documentation on the new LXD pod feature.

It seems MAAS is able to contact the LXD API at the very least, because if I try a different address/port it will give a different error. I would like to clarify what exactly the "LXD Address" should be. I've tried the following:

<ip>:8443 - Above Error
<ip>:8443/1.0 - Not Found Error
https://<ip>:8443 - Above Error
https://<ip>:8443/1.0 - Not Found Error

I could be missing something here, but could I get more info about the error?

[Lee Trager (ltrager)]

<ip>, <ip>:<port>, https://<ip>, http://<ip>:<port> should all work. The MAAS logs should contain more information about why MAAS can't connect.

[Hakan Saplakoglu (hakasapl)]

Here's what the log has:

2020-07-01 23:48:42 maasserver.forms.pods: [critical] Failed to discover pod.
        Traceback (most recent call last):
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 653, in _runCallbacks
            current.result = callback(current.result, *args, **kw)
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 1117, in _cbDeferred
            self.callback(self.resultList)
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 459, in callback
            self._startRunCallbacks(result)
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 567, in _startRunCallbacks
            self._runCallbacks()
        --- <exception caught here> ---
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 653, in _runCallbacks
            current.result = callback(current.result, *args, **kw)
          File "/snap/maas/7578/lib/python3.6/site-packages/maasserver/forms/pods.py", line 407, in <lambda>
            get_best_discovered_result(discovered),
          File "/snap/maas/7578/lib/python3.6/site-packages/maasserver/clusterrpc/pods.py", line 86, in get_best_discovered_result
            raise exc
        provisioningserver.rpc.exceptions.PodActionFail: Failed talking to pod: 'ports'

2020-07-01 23:48:42 maasserver.websockets.protocol: [critical] Error on request (75) pod.create: Failed talking to pod: 'ports'
        Traceback (most recent call last):
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 653, in _runCallbacks
            current.result = callback(current.result, *args, **kw)
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 1117, in _cbDeferred
            self.callback(self.resultList)
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 459, in callback
            self._startRunCallbacks(result)
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 567, in _startRunCallbacks
            self._runCallbacks()
        --- <exception caught here> ---
          File "/snap/maas/7578/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 653, in _runCallbacks
            current.result = callback(current.result, *args, **kw)
          File "/snap/maas/7578/lib/python3.6/site-packages/maasserver/forms/pods.py", line 426, in wrap_errors
            raise PodProblem(str(failure.value))
        maasserver.exceptions.PodProblem: Failed talking to pod: 'ports'

Netstat reveals LXD listening on 8443:
tcp6 0 0 :::8443 :::* LISTEN 249941/lxd

[Hakan Saplakoglu (hakasapl)]

Any updates on this? The LXD daemon is running on the same host as the maas region controller, and is remotely accessible.

[Hakan Saplakoglu (hakasapl)]

Any updates? Do you need any more info from me?

[Launchpad Janitor (janitor)]

[Expired for MAAS because there has been no activity for 60 days.]

[Dan Ardelean (danardelean)]

I am having the same issues with MAAS 3.1 and LXD 4.19 on the same host, "provisioningserver.drivers.pod.lxd.LXDPodError: Pod 0: Failed to connect to the LXD REST API."

[Alexsander de Souza (alexsander-souza)]

Hi Dan, can you please attach the rackd.log to this bug?

[Launchpad Janitor (janitor)]

[Expired for MAAS because there has been no activity for 60 days.]