Provide option for Custom Configuration for Cilium Overlay Networking

[jan-walther]

Description of the feature you would like to add / User story

As a customer
I would like to be able to configure Cilium in detail
in order to utilize e.g. Cilium's L2 Load Balancing. For example configuring the IP range in the KubeOne manifest.

Solution details

• Change the KubeOne resource to accept more Cilium parameters
• Modify the builtin cni-cilium add-on to accept more values from the KubeOne manifest

Alternative approaches

Allow disabling the default CNI add-on so that users can supply their own CNI add-on

Use cases

• Replace MetalLB with Ciliums L2 load balancing

Additional information

[kron4eg]

hello @jan-walther, I'd suggest to use helm chart from the upstream directly. KubeOne addons will never be as configurable as helm chart.

[toschneck]

/label customer-request

[judge-red]

On one hand, we would also like this, on the other hand we're currently deploying the Cilium Helm chart through Kubeone's helmReleases functionality, which works surprisingly well.

[csengerszabo]

We plan to document this below (with Helm chart deployment) and not to implement it into KubeOne

On one hand, we would also like this, on the other hand we're currently deploying the Cilium Helm chart through Kubeone's helmReleases functionality, which works surprisingly well.

[csengerszabo]

/remove-kind feature
/priority normal

[csengerszabo]

/remove-priority high