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kubeadm: fix kubeadm join using existing certs

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If 'kubeadm join' is run with --discovery-file option it still
prompts for bootstrap token. This makes it impossible to use
existing client certificates mentioned in the discovery file.

Fixed by checking for empty bootstrap token only if discovery file
is not specified.

Fixes: kubernetes/kubeadm#1142
This commit is contained in:
Ed Bartosh 2018-10-01 18:19:20 +03:00
parent e9a3aaa44b
commit b1b719fa68
1 changed files with 5 additions and 1 deletions
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6
cmd/kubeadm/app/apis/kubeadm/validation/validation.go
View File

@ -99,9 +99,13 @@ func ValidateDiscovery(c *kubeadm.JoinConfiguration) field.ErrorList {
}
if len(c.DiscoveryFile) != 0 {
allErrs = append(allErrs, ValidateDiscoveryFile(c.DiscoveryFile, field.NewPath("discoveryFile"))...)
if len(c.TLSBootstrapToken) != 0 {
allErrs = append(allErrs, ValidateToken(c.TLSBootstrapToken, field.NewPath("tlsBootstrapToken"))...)
}
} else {
allErrs = append(allErrs, ValidateToken(c.TLSBootstrapToken, field.NewPath("tlsBootstrapToken"))...)
}
allErrs = append(allErrs, ValidateArgSelection(c, field.NewPath("discovery"))...)
allErrs = append(allErrs, ValidateToken(c.TLSBootstrapToken, field.NewPath("tlsBootstrapToken"))...)
allErrs = append(allErrs, ValidateJoinDiscoveryTokenAPIServer(c.DiscoveryTokenAPIServers, field.NewPath("discoveryTokenAPIServers"))...)
return allErrs