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Balk at using Kubernetes versions too new to be supported

This commit is contained in:
John Gardiner Myers 2020-03-08 17:57:21 -07:00
parent 443012efc7
commit 8db90a3233
1 changed files with 23 additions and 0 deletions
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23
upup/pkg/fi/cloudup/apply_cluster.go
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@ -1053,6 +1053,29 @@ func (c *ApplyClusterCmd) validateKubernetesVersion() error {
return nil
}
kopsVersion, err := semver.Parse(kopsbase.KOPS_RELEASE_VERSION)
if err != nil {
klog.Warningf("unable to parse kops version %q", kopsVersion)
} else {
tooNewVersion := kopsVersion
tooNewVersion.Minor += 1
tooNewVersion.Pre = nil
tooNewVersion.Build = nil
if util.IsKubernetesGTE(tooNewVersion.String(), *parsed) {
fmt.Printf("\n")
fmt.Printf("%s\n", starline)
fmt.Printf("\n")
fmt.Printf("This version of kubernetes is not yet supported; upgrading kops is required\n")
fmt.Printf("(you can bypass this check by exporting KOPS_RUN_TOO_NEW_VERSION)\n")
fmt.Printf("\n")
fmt.Printf("%s\n", starline)
fmt.Printf("\n")
if os.Getenv("KOPS_RUN_TOO_NEW_VERSION") == "" {
return fmt.Errorf("kops upgrade is required")
}
}
}
if !util.IsKubernetesGTE(OldestSupportedKubernetesVersion, *parsed) {
fmt.Printf("This version of Kubernetes is no longer supported; upgrading Kubernetes is required\n")
fmt.Printf("\n")