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@ -215,10 +215,19 @@ func multiWordReplace(s string, subname string, sub string) string {
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func getKubeVersion() string {
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// These executables might not be on the user's path.
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_, err := exec.LookPath("kubectl")
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if err != nil {
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exitWithError(fmt.Errorf("kubernetes version check failed: %v", err))
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_, err = exec.LookPath("kubelet")
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if err != nil {
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exitWithError(fmt.Errorf("Version check failed: need kubectl or kubelet binaries to get kubernetes version"))
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}
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return getKubeVersionFromKubelet()
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}
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return getKubeVersionFromKubectl()
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}
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func getKubeVersionFromKubectl() string {
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cmd := exec.Command("kubectl", "version", "--short")
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out, err := cmd.CombinedOutput()
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if err != nil {
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@ -228,6 +237,17 @@ func getKubeVersion() string {
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return getVersionFromKubectlOutput(string(out))
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}
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func getKubeVersionFromKubelet() string {
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cmd := exec.Command("kubelet", "--version")
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out, err := cmd.CombinedOutput()
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if err != nil {
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continueWithError(fmt.Errorf("%s", out), "")
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}
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return getVersionFromKubeletOutput(string(out))
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}
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func getVersionFromKubectlOutput(s string) string {
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serverVersionRe := regexp.MustCompile(`Server Version: v(\d+.\d+)`)
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subs := serverVersionRe.FindStringSubmatch(s)
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@ -238,6 +258,16 @@ func getVersionFromKubectlOutput(s string) string {
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return subs[1]
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}
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func getVersionFromKubeletOutput(s string) string {
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serverVersionRe := regexp.MustCompile(`Kubernetes v(\d+.\d+)`)
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subs := serverVersionRe.FindStringSubmatch(s)
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if len(subs) < 2 {
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printlnWarn(fmt.Sprintf("Unable to get kubelet version, using default version: %s", defaultKubeVersion))
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return defaultKubeVersion
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}
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return subs[1]
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}
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func makeSubstitutions(s string, ext string, m map[string]string) string {
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for k, v := range m {
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subst := "$" + k + ext
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