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add validation to indicate kube-dns is no longer supported
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parent
8901a9b4f3
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@ -57,6 +57,7 @@ func ValidateInitConfiguration(c *kubeadm.InitConfiguration) field.ErrorList {
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// ValidateClusterConfiguration validates an ClusterConfiguration object and collects all encountered errors
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func ValidateClusterConfiguration(c *kubeadm.ClusterConfiguration) field.ErrorList {
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allErrs := field.ErrorList{}
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allErrs = append(allErrs, ValidateDNS(&c.DNS, field.NewPath("dns"))...)
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allErrs = append(allErrs, ValidateNetworking(c, field.NewPath("networking"))...)
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allErrs = append(allErrs, ValidateAPIServer(&c.APIServer, field.NewPath("apiServer"))...)
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allErrs = append(allErrs, ValidateAbsolutePath(c.CertificatesDir, field.NewPath("certificatesDir"))...)
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@ -484,6 +485,16 @@ func getClusterNodeMask(c *kubeadm.ClusterConfiguration, isIPv6 bool) (int, erro
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return maskSize, nil
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}
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// ValidateDNS validates the DNS object and collects all encountered errors
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func ValidateDNS(dns *kubeadm.DNS, fldPath *field.Path) field.ErrorList {
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allErrs := field.ErrorList{}
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const kubeDNSType = "kube-dns"
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if dns.Type == kubeDNSType {
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allErrs = append(allErrs, field.Invalid(fldPath, dns.Type, fmt.Sprintf("DNS type %q is no longer supported", kubeDNSType)))
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}
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return allErrs
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}
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// ValidateNetworking validates networking configuration
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func ValidateNetworking(c *kubeadm.ClusterConfiguration, fldPath *field.Path) field.ErrorList {
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allErrs := field.ErrorList{}
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