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kubeadm: fix kubeadm reset logic

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If /etc/kubeadm/amdin.conf doesn't exist kubeadm reset fails
with the error:
    failed to load admin kubeconfig: open /root/.kube/config: no such file or directory

Fixed by properly checking if file exists before using it.
This commit is contained in:
Ed Bartosh 2019-02-14 12:57:25 +02:00
parent 30c7df5cd8
commit 7a8de82dfd
1 changed files with 10 additions and 6 deletions
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4
cmd/kubeadm/app/cmd/reset.go
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@ -62,8 +62,10 @@ func NewCmdReset(in io.Reader, out io.Writer) *cobra.Command {
kubeadmutil.CheckErr(err) kubeadmutil.CheckErr(err)
kubeConfigFile = cmdutil.FindExistingKubeConfig(kubeConfigFile) kubeConfigFile = cmdutil.FindExistingKubeConfig(kubeConfigFile)
if _, err := os.Stat(kubeConfigFile); !os.IsNotExist(err) {
client, err = getClientset(kubeConfigFile, false) client, err = getClientset(kubeConfigFile, false)
kubeadmutil.CheckErr(err) kubeadmutil.CheckErr(err)
}
if criSocketPath == "" { if criSocketPath == "" {
criSocketPath, err = resetDetectCRISocket(client) criSocketPath, err = resetDetectCRISocket(client)
@ -298,11 +300,13 @@ func resetConfigDir(configPathDir, pkiPathDir string) {
} }
func resetDetectCRISocket(client clientset.Interface) (string, error) { func resetDetectCRISocket(client clientset.Interface) (string, error) {
if client != nil {
// first try to connect to the cluster for the CRI socket // first try to connect to the cluster for the CRI socket
cfg, err := configutil.FetchInitConfigurationFromCluster(client, os.Stdout, "reset", false) cfg, err := configutil.FetchInitConfigurationFromCluster(client, os.Stdout, "reset", false)
if err == nil { if err == nil {
return cfg.NodeRegistration.CRISocket, nil return cfg.NodeRegistration.CRISocket, nil
} }
}
// if this fails, try to detect it // if this fails, try to detect it
return utilruntime.DetectCRISocket() return utilruntime.DetectCRISocket()