minikube version: new flag --packages to list all included tools vers…

…ions

cmd/minikube/cmd/version.go

@@ -18,18 +18,23 @@ package cmd
 
 import (
 	"encoding/json"
+	"os/exec"
+	"strings"
 
 	"github.com/spf13/cobra"
 	"gopkg.in/yaml.v2"
+	"k8s.io/klog/v2"
 	"k8s.io/minikube/pkg/minikube/exit"
+	"k8s.io/minikube/pkg/minikube/mustload"
 	"k8s.io/minikube/pkg/minikube/out"
 	"k8s.io/minikube/pkg/minikube/reason"
 	"k8s.io/minikube/pkg/version"
 )
 
 var (
-	versionOutput string
-	shortVersion  bool
+	versionOutput        string
+	shortVersion         bool
+	listPackagesVersions bool
 )
 
 var versionCmd = &cobra.Command{
@@ -43,13 +48,55 @@ var versionCmd = &cobra.Command{
 			"minikubeVersion": minikubeVersion,
 			"commit":          gitCommitID,
 		}
+
+		if listPackagesVersions {
+			co := mustload.Running(ClusterFlagValue())
+			runner := co.CP.Runner
+			// docker version --format='{{.Client.Version}}'
+			// sudo crictl version
+			// runc --version
+			// crio version
+			// buildctl --version
+			// sudo ctr version
+			// sudo podman version
+
+			versionCMDS := map[string]*exec.Cmd{
+				"docker":   exec.Command("docker", "version", "--format={{.Client.Version}}min"),
+				"crictl":   exec.Command("sudo", "crictl", "version"),
+				"crio":     exec.Command("crio", "version"),
+				"runc":     exec.Command("runc", "--version"),
+				"buildctl": exec.Command("buildctl", "--version"),
+				"ctr":      exec.Command("sudo", "ctr", "version"),
+			}
+			for k, v := range versionCMDS {
+				rr, err := runner.RunCmd(v)
+				if err != nil {
+					klog.Warningf("error getting %s's version: %v", k, err)
+					data[k] = "error"
+				} else {
+					data[k] = strings.TrimSpace(rr.Stdout.String())
+				}
+
+			}
+
+		}
+
 		switch versionOutput {
 		case "":
 			if !shortVersion {
 				out.Ln("minikube version: %v", minikubeVersion)
 				if gitCommitID != "" {
 					out.Ln("commit: %v", gitCommitID)
 				}
+				for k, v := range data {
+					// for backward compatibility we keep the old ways separate
+					if k == "minikubeVersion" || k == "commit" {
+						continue
+					}
+					if v != "" {
+						out.Ln("\n%s: %s\n", k, v)
+					}
+				}
 			} else {
 				out.Ln("%v", minikubeVersion)
 			}
@@ -74,4 +121,5 @@ var versionCmd = &cobra.Command{
 func init() {
 	versionCmd.Flags().StringVarP(&versionOutput, "output", "o", "", "One of 'yaml' or 'json'.")
 	versionCmd.Flags().BoolVar(&shortVersion, "short", false, "Print just the version number.")
+	versionCmd.Flags().BoolVar(&listPackagesVersions, "packages", false, "list versions of all packages included with minikube. (cluster must be running)")
 }