Flannel configuration not taken into account

[Samuel Paccard]

Hello,

I have installed a charmed kubernetes where I adapted a little bit the bundle in order to change the number of machines and some options.

I want flannel to use another interface thant the one taken by default but the change are not taken into account. If I specify it during the deployment in the bundle the value is left empty.

And if I configure it once the deployment is done with the juju config command, the value stays in the configuration but no operation are done on the nodes.

I also try to change the CIDR to see the reaction, but as for the interface nothing happen.

for information I deploy it on focal and the charm version is cs:~containers/flannel-514.

Did you know how to solve that or do you have a work around ?

Thanks in advance,
Bert regards

[George Kraft (cynerva)]

> If I specify it during the deployment in the bundle the value is left empty.

Can you show us the bundle you're deploying, and where you're seeing the empty value?

> And if I configure it once the deployment is done with the juju config command, the value stays in the configuration but no operation are done on the nodes.

The charm has code to handle the iface config changing[1], and I've confirmed that code is present in flannel rev 514. What operation is not happening that you're expecting to see?

[1]: https://github.com/charmed-kubernetes/charm-flannel/blob/e541222bf746caea5884de99d4ff0472c138fe86/reactive/flannel.py#L141-L144