Show last start and audit logs on `minikube logs` if minikube not running

cmd/minikube/cmd/logs.go

@@ -23,6 +23,7 @@ import (
 	"github.com/spf13/viper"
 	cmdcfg "k8s.io/minikube/cmd/minikube/cmd/config"
 	"k8s.io/minikube/pkg/minikube/cluster"
+	"k8s.io/minikube/pkg/minikube/config"
 	"k8s.io/minikube/pkg/minikube/cruntime"
 	"k8s.io/minikube/pkg/minikube/exit"
 	"k8s.io/minikube/pkg/minikube/logs"
@@ -52,6 +53,11 @@ var logsCmd = &cobra.Command{
 	Short: "Returns logs to debug a local Kubernetes cluster",
 	Long:  `Gets the logs of the running instance, used for debugging minikube, not user code.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		if !isClusterRunning() {
+			logs.OutputMinikubeLogs(numberOfLines)
+			return
+		}
+
 		co := mustload.Running(ClusterFlagValue())
 
 		bs, err := cluster.Bootstrapper(co.API, viper.GetString(cmdcfg.Bootstrapper), *co.Config, co.CP.Runner)
@@ -85,6 +91,16 @@ var logsCmd = &cobra.Command{
 	},
 }
 
+func isClusterRunning() bool {
+	if _, err := config.Load(ClusterFlagValue()); err != nil {
+		if config.IsNotExist(err) {
+			return false
+		}
+		exit.Error(reason.HostConfigLoad, "Error getting cluster config", err)
+	}
+	return true
+}
+
 func init() {
 	logsCmd.Flags().BoolVarP(&followLogs, "follow", "f", false, "Show only the most recent journal entries, and continuously print new entries as they are appended to the journal.")
 	logsCmd.Flags().BoolVar(&showProblems, "problems", false, "Show only log entries which point to known problems")

go.sum

@@ -733,7 +733,6 @@ github.com/opencontainers/runtime-spec v1.0.0/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/
 github.com/opencontainers/selinux v1.3.1-0.20190929122143-5215b1806f52/go.mod h1:+BLncwf63G4dgOzykXAxcmnFlUaOlkDdmw/CqsW6pjs=
 github.com/otiai10/copy v1.0.2 h1:DDNipYy6RkIkjMwy+AWzgKiNTyj2RUI9yEMeETEpVyc=
 github.com/otiai10/copy v1.0.2/go.mod h1:c7RpqBkwMom4bYTSkLSym4VSJz/XtncWRAj/J4PEIMY=
-github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95 h1:+OLn68pqasWca0z5ryit9KGfp3sUsW4Lqg32iRMJyzs=
 github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95/go.mod h1:9qAhocn7zKJG+0mI8eUu6xqkFDYS2kb2saOteoSB3cE=
 github.com/otiai10/mint v1.3.0 h1:Ady6MKVezQwHBkGzLFbrsywyp09Ah7rkmfjV3Bcr5uc=
 github.com/otiai10/mint v1.3.0/go.mod h1:F5AjcsTsWUqX+Na9fpHb52P8pcRX2CI6A3ctIT91xUo=
@@ -1009,7 +1008,6 @@ golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzB
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.4.1 h1:Kvvh58BN8Y9/lBi7hTekvtMpm07eUZ0ck5pRHpsMWrY=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2 h1:Gz96sIWK3OalVv/I/qNygP42zyoKp3xptRVCWRFEBvo=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=

pkg/minikube/logs/logs.go

@@ -243,6 +243,16 @@ func outputLastStart() error {
 	return nil
 }
 
+// OutputMinikubeLogs outputs the audit and last start logs only
+func OutputMinikubeLogs(lines int) {
+	if err := outputAudit(lines); err != nil {
+		klog.Errorf("failed to output audit logs: %v", err)
+	}
+	if err := outputLastStart(); err != nil {
+		klog.Errorf("failed to output last start logs: %v", err)
+	}
+}
+
 // logCommands returns a list of commands that would be run to receive the anticipated logs
 func logCommands(r cruntime.Manager, bs bootstrapper.Bootstrapper, cfg config.ClusterConfig, length int, follow bool) map[string]string {
 	cmds := bs.LogCommands(cfg, bootstrapper.LogOptions{Lines: length, Follow: follow})