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Fix kubeadm upgrade plan issue with FQDN nodes names

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the fix introduced in #110634 also introduces a bug preventing `kubeadm
upgrade plan` from running on nodes having a different `os.Hostname()`
than node name. concretely, for a node `titi.company.ch`,
`os.Hostname()` will return `titi`, while the full node name is actually
`titi.company.ch`. this simple fix uses the `cfg.NodeRegistration.Name`
instead, which fixes the issue on my nodes with a FQDN node name

Keep previous hostname retrieval as fallback for dupURL CRI fix
This commit is contained in:
Clément Nussbaumer 2022-07-26 09:33:44 +02:00
parent 95303390ac
commit 1459fdf7cf
1 changed files with 8 additions and 3 deletions
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11
cmd/kubeadm/app/cmd/upgrade/common.go
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@ -232,9 +232,14 @@ func enforceRequirements(flags *applyPlanFlags, args []string, dryRun bool, upgr
if dupURLScheme {
socket := strings.ReplaceAll(cfg.NodeRegistration.CRISocket, kubeadmapiv1.DefaultContainerRuntimeURLScheme+"://", "")
cfg.NodeRegistration.CRISocket = kubeadmapiv1.DefaultContainerRuntimeURLScheme + "://" + socket
hostname, err := os.Hostname()
if err != nil {
return nil, nil, nil, errors.Wrapf(err, "failed to get hostname")
var hostname string
if len(cfg.NodeRegistration.Name) > 0 {
hostname = cfg.NodeRegistration.Name
} else {
hostname, err = os.Hostname()
if err != nil {
return nil, nil, nil, errors.Wrapf(err, "failed to get hostname")
}
}
klog.V(2).Infof("ensuring that Node %q has a CRI socket annotation with correct URL scheme %q", hostname, cfg.NodeRegistration.CRISocket)
if err := patchnodephase.AnnotateCRISocket(client, hostname, cfg.NodeRegistration.CRISocket); err != nil {