“No available machine matches constraints” error when trying to deploy charmed-kubernetes on openstack/base on a maas cloud

juju
, ,
1

I have successfully deployed an openstack/base environment on a maas-cloud. I am now trying to deploy charmed-kubernetes, but I get errors like:

3        down                    pending              bionic           No available machine matches constraints: [('agent_name', ['e2c1b014-62ed4622-8691-5e520179689d']), ('storage',['root:8']), ('zone', ['default'])] (resolved to "storage=root:8 zone=default")

This appears even if I suppress all machine constraints in the bundle.yaml file and deploy from there.

However, I can deploy instances once logged in the openstack environment. For instance, I have deployed

| ID                                   | Name        | Status | Networks               | Image  | Flavor |
+--------------------------------------+-------------+--------+------------------------+--------+--------+
| be960a39-7507-4bfc-bc9a-5de55ab574d4 | bionic-test | ACTIVE | internal=192.168.0.91  | bionic | small  |
| 982fd557-38d8-4247-b3fa-5ed738e28026 | focal-test  | ACTIVE | internal=192.168.0.186 | focal  | small  |

and created as well as attached

| ID                                   | Name          | Status | Size | Attached to                          |
+--------------------------------------+---------------+--------+------+--------------------------------------+
| 2b51416f-9571-4a55-8a8e-ec867f954afb | bionic-volume | in-use |   10 | Attached to bionic-test on /dev/vdb  |.

So the question is really how to make juju aware of the images available in the openstack environment.

A solution might be to generate another openstack cloud and take the keystone address from the openstack/base deployment as the endpoint for the new cloud. But I still have to find a way to pass authentication information to the bootstrapping process. Any suggestions how to do this properly ?

3

You deploying K8s inside Openstack, or bare metal side by side to you Openstack

4

To use Juju to deploy machines on an OpenStack cloud, you need to tell it where to find metadata for the images available in the OpenStack cloud, which involves setting up a simplestreams service in OpenStack. The procedure for doing so is documented here: https://juju.is/docs/cloud-image-metadata

Let me know if you have any questions after trying that out.

5

Thanks for your response. I have already started what you suggest, as you can tell from my other post. Basically, I am trying to use the openstack deployment on the MaaS as a backend cloud to an openstack frontend cloud. That was the way I interpreted the cloud image metadata and the subsequent Using Openstack with Juju instructions. Correct me if I got that wrong. Unfortunately, the problem then becomes that when I proceed to bootstrapping the other controller on the openstack cloud with the keystone ip auth as endpoint, I get the error message:
ERROR cannot set config: cannot create a client: version part of identity url https://keystone_ip:5000/v3/auth not valid