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Node local dns for dual-stack #655

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DockToFuture opened this issue Nov 20, 2024 · 1 comment

DockToFuture commented Nov 20, 2024 •

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We set up kubernetes dual-stack clusters and want to use node-local dns. When checking the code I see that only one IP familiy is supported at time (

dns/cmd/node-cache/main.go

Lines 104 to 106 in fe97ec9

    
           for _, ip := range params.LocalIPs { 
        
           	if utilnet.IsIPv6(params.LocalIPs[0]) != utilnet.IsIPv6(ip) { 
        
           		return params, fmt.Errorf("unexpected IP Family for localIP - %q, want IPv6=%v", ip, utilnet.IsIPv6(params.LocalIPs[0]))

). What is the reason for that? Can we also add dual-stack support to the kubernetes node-cache?

Author

DockToFuture commented Nov 20, 2024

As an implementation proposal I suggest: #657.

ScheererJ mentioned this issue

Add support for node-local-dns in dual-stack cluster. gardener/gardener#10891

Merged

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