fix: Move galactic-cni's host kubeconfig off /etc for Talos#227
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…nodes install.sh wrote its kubeconfig/CA cert to /etc/galactic via a hostPath mount. On Talos (and other immutable-root distros), only /var is writable without a host-level extraMounts entry, so mkdir /etc/galactic failed outright. Move that state to /var/lib/galactic instead -- /opt/cni/bin (the CNI binary path) is unaffected and already correct. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
scotwells
approved these changes
Jul 10, 2026
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Summary
galactic-cni's installer DaemonSet writes a kubeconfig and CA cert to the host at/etc/galactic, so the kubelet-exec'd CNI binary (which runs outside any pod's cgroup and can't read the pod's own ServiceAccount token) has something to authenticate with. On Talos Linux, the host root filesystem is immutable — only/varis writable viahostPathwithout an explicitextraMountsentry in the machine config — somkdir /etc/galacticfails immediately and the CNI DaemonSet never comes up.This moves that state to
/var/lib/galactic, which sits on Talos's writable EPHEMERAL partition (/var) with no machine-config changes required. The CNI binary path,/opt/cni/bin, is untouched — it already matches Talos's expected location and isn't affected by this bug.Test plan
kubectl kustomize config/cnibuilds cleanly with the new path in both the initContainer and main container mounts, and thegalactic-etcvolume'shostPath.pathtask lint(golangci-lint + yamlfmt) passes