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In the past user had to customize Kubernetes or use a bind mount to make writing the default /usr/libexec/kubernetes/ path work. With systemd-sysext on by default the bind mount doesn't work anymore because it can get lost. A newer workaround is to use a systemd-sysext image that creates a symlink in /usr/libexec/... to redirect to somewhere under /var/. Instead of relying on workarounds, make Kubernetes work by default on Flatcar by having the symlink be part of the generic image. The target folder will be created through a tmpfiles rule.
243 B
243 B
- To make Kubernetes work by default,
/usr/libexec/kubernetes/kubelet-plugins/volume/exec
is now a symlink to the writable folder/var/kubernetes/kubelet-plugins/volume/exec
(Flatcar#1193)