add support for namespace

cmd/minikube/cmd/start.go

@@ -436,7 +436,7 @@ func showKubectlInfo(kcs *kubeconfig.Settings, k8sVersion string, machineName st
 		if kcs.KeepContext {
 			out.T(style.Kubectl, "To connect to this cluster, use:  --context={{.name}}", out.V{"name": kcs.ClusterName})
 		} else {
-			out.T(style.Ready, `Done! kubectl is now configured to use "{{.name}}" by default`, out.V{"name": machineName})
+			out.T(style.Ready, `Done! kubectl is now configured to use "{{.name}}" cluster and "{{.ns}}" namespace by default`, out.V{"name": machineName, "ns": kcs.Namespace})
 		}
 	}()
 

cmd/minikube/cmd/start_flags.go

@@ -108,6 +108,7 @@ const (
 	kicBaseImage            = "base-image"
 	startOutput             = "output"
 	ports                   = "ports"
+	startNamespace          = "namespace"
 )
 
 // initMinikubeFlags includes commandline flags for minikube.
@@ -153,6 +154,7 @@ func initMinikubeFlags() {
 // initKubernetesFlags inits the commandline flags for Kubernetes related options
 func initKubernetesFlags() {
 	startCmd.Flags().String(kubernetesVersion, "", fmt.Sprintf("The Kubernetes version that the minikube VM will use (ex: v1.2.3, 'stable' for %s, 'latest' for %s). Defaults to 'stable'.", constants.DefaultKubernetesVersion, constants.NewestKubernetesVersion))
+	startCmd.Flags().String(startNamespace, "default", "The namespace used in the Kubernetes cluster")
 	startCmd.Flags().Var(&config.ExtraOptions, "extra-config",
 		`A set of key=value pairs that describe configuration that may be passed to different components.
 		The key should be '.' separated, and the first part before the dot is the component to apply the configuration to.
@@ -324,6 +326,7 @@ func generateClusterConfig(cmd *cobra.Command, existing *config.ClusterConfig, k
 			KubernetesConfig: config.KubernetesConfig{
 				KubernetesVersion:      k8sVersion,
 				ClusterName:            ClusterFlagValue(),
+				Namespace:              viper.GetString(startNamespace),
 				APIServerName:          viper.GetString(apiServerName),
 				APIServerNames:         apiServerNames,
 				APIServerIPs:           apiServerIPs,
@@ -545,6 +548,10 @@ func updateExistingConfigFromFlags(cmd *cobra.Command, existing *config.ClusterC
 		cc.KubernetesConfig.KubernetesVersion = getKubernetesVersion(existing)
 	}
 
+	if cmd.Flags().Changed(startNamespace) {
+		cc.KubernetesConfig.Namespace = viper.GetString(startNamespace)
+	}
+
 	if cmd.Flags().Changed(apiServerName) {
 		cc.KubernetesConfig.APIServerName = viper.GetString(apiServerName)
 	}

go.mod

@@ -34,6 +34,7 @@ require (
 	github.com/googleapis/gnostic v0.3.0 // indirect
 	github.com/hashicorp/go-getter v1.4.2
 	github.com/hashicorp/go-retryablehttp v0.6.6
+	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/hooklift/assert v0.0.0-20170704181755-9d1defd6d214 // indirect
 	github.com/hooklift/iso9660 v0.0.0-20170318115843-1cf07e5970d8
 	github.com/intel-go/cpuid v0.0.0-20181003105527-1a4a6f06a1c6 // indirect
@@ -49,7 +50,9 @@ require (
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/libvirt/libvirt-go v3.4.0+incompatible
 	github.com/machine-drivers/docker-machine-driver-vmware v0.1.1
+	github.com/mattn/go-colorable v0.1.8 // indirect
 	github.com/mattn/go-isatty v0.0.12
+	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/mitchellh/go-ps v0.0.0-20190716172923-621e5597135b
 	github.com/moby/hyperkit v0.0.0-20171020124204-a12cd7250bcd
 	github.com/olekukonko/tablewriter v0.0.4
@@ -64,7 +67,8 @@ require (
 	github.com/russross/blackfriday v1.5.3-0.20200218234912-41c5fccfd6f6 // indirect
 	github.com/samalba/dockerclient v0.0.0-20160414174713-91d7393ff859 // indirect
 	github.com/shirou/gopsutil v2.18.12+incompatible
-	github.com/spf13/cobra v1.0.0
+	github.com/sirupsen/logrus v1.7.0 // indirect
+	github.com/spf13/cobra v1.1.1
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.7.0
 	github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f // indirect
@@ -76,7 +80,7 @@ require (
 	golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
 	golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a
-	golang.org/x/sys v0.0.0-20200523222454-059865788121
+	golang.org/x/sys v0.0.0-20201018230417-eeed37f84f13
 	golang.org/x/text v0.3.2
 	google.golang.org/api v0.25.0
 	gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 // indirect

go.sum

@@ -625,6 +625,8 @@ github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.3 h1:YPkqC67at8FYaadspW/6uE0COsBxS2656RLEr8Bppgk=
 github.com/hashicorp/golang-lru v0.5.3/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
+github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
+github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/hashicorp/hcl v0.0.0-20180404174102-ef8a98b0bbce/go.mod h1:oZtUIOe8dh44I2q6ScRibXws4Ajl+d+nod3AaR9vL5w=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
@@ -778,6 +780,8 @@ github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVc
 github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.6 h1:6Su7aK7lXmJ/U79bYtBjLNaha4Fs1Rg9plHpcH+vvnE=
 github.com/mattn/go-colorable v0.1.6/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ0s8=
+github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-ieproxy v0.0.0-20190610004146-91bb50d98149/go.mod h1:31jz6HNzdxOmlERGGEc4v/dMssOfmp2p5bT/okiKFFc=
 github.com/mattn/go-ieproxy v0.0.0-20190702010315-6dee0af9227d/go.mod h1:31jz6HNzdxOmlERGGEc4v/dMssOfmp2p5bT/okiKFFc=
 github.com/mattn/go-ieproxy v0.0.1/go.mod h1:pYabZ6IHcRpFh7vIaLfK7rdcWgFEb3SFJ6/gNWuh88E=
@@ -796,6 +800,8 @@ github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54=
 github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
+github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-shellwords v1.0.5 h1:JhhFTIOslh5ZsPrpa3Wdg8bF0WI3b44EMblmU9wIsXc=
 github.com/mattn/go-shellwords v1.0.5/go.mod h1:3xCvwCdWdlDJUrvuMn7Wuy9eWs4pE8vqg+NOMyg4B2o=
 github.com/mattn/go-shellwords v1.0.10/go.mod h1:EZzvwXDESEeg03EKmM+RmDnNOPKG4lLtQsUlTZDWQ8Y=
@@ -1020,6 +1026,8 @@ github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0 h1:UBcNElsrwanuuMsnGSlYmtmgbb23qDR5dG+6X6Oo89I=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
+github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
+github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/assertions v1.0.0 h1:UVQPSSmc3qtTi+zPPkCXvZX9VvW/xT/NsRvKfwY81a8=
@@ -1048,6 +1056,8 @@ github.com/spf13/cobra v0.0.5 h1:f0B+LkLX6DtmRH1isoNA9VTtNUK9K8xYd28JNNfOv/s=
 github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
 github.com/spf13/cobra v1.0.0 h1:6m/oheQuQ13N9ks4hubMG6BnvwOeaJrqSPLahSnczz8=
 github.com/spf13/cobra v1.0.0/go.mod h1:/6GTrnGXV9HjY+aR4k0oJ5tcvakLuG6EuKReYlHNrgE=
+github.com/spf13/cobra v1.1.1 h1:KfztREH0tPxJJ+geloSLaAkaPkr4ki2Er5quFV1TDo4=
+github.com/spf13/cobra v1.1.1/go.mod h1:WnodtKOvamDL/PwE2M4iKs8aMDBZ5Q5klgD3qfVJQMI=
 github.com/spf13/jwalterweatherman v0.0.0-20180109140146-7c0cea34c8ec/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9Gc1vn7yk=
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
@@ -1364,6 +1374,8 @@ golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200511232937-7e40ca221e25/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200523222454-059865788121 h1:rITEj+UZHYC927n8GT97eC3zrpzXdb/voyeOuVKS46o=
 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201018230417-eeed37f84f13 h1:5jaG59Zhd+8ZXe8C+lgiAGqkOaZBruqrWclLkgAww34=
+golang.org/x/sys v0.0.0-20201018230417-eeed37f84f13/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.0.0-20170915090833-1cbadb444a80/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

pkg/minikube/config/types.go

@@ -78,6 +78,7 @@ type ClusterConfig struct {
 type KubernetesConfig struct {
 	KubernetesVersion   string
 	ClusterName         string
+	Namespace           string
 	APIServerName       string
 	APIServerNames      []string
 	APIServerIPs        []net.IP

pkg/minikube/kubeconfig/settings.go

@@ -33,6 +33,9 @@ type Settings struct {
 	// The name of the cluster for this context
 	ClusterName string
 
+	// The name of the namespace for this context
+	Namespace string
+
 	// ClusterServerAddress is the address of the Kubernetes cluster
 	ClusterServerAddress string
 
@@ -104,6 +107,7 @@ func PopulateFromSettings(cfg *Settings, apiCfg *api.Config) error {
 	contextName := cfg.ClusterName
 	context := api.NewContext()
 	context.Cluster = cfg.ClusterName
+	context.Namespace = cfg.Namespace
 	context.AuthInfo = userName
 	apiCfg.Contexts[contextName] = context
 

pkg/minikube/node/start.go

@@ -318,6 +318,7 @@ func setupKubeconfig(h *host.Host, cc *config.ClusterConfig, n *config.Node, clu
 	}
 	kcs := &kubeconfig.Settings{
 		ClusterName:          clusterName,
+		Namespace:            cc.KubernetesConfig.Namespace,
 		ClusterServerAddress: addr,
 		ClientCertificate:    localpath.ClientCert(cc.Name),
 		ClientKey:            localpath.ClientKey(cc.Name),

site/content/en/docs/commands/start.md

@@ -75,6 +75,7 @@ minikube start [flags]
       --memory string                     Amount of RAM to allocate to Kubernetes (format: <number>[<unit>], where unit = b, k, m or g).
       --mount                             This will start the mount daemon and automatically mount files into minikube.
       --mount-string string               The argument to pass the minikube mount command on start.
+      --namespace string                  The namespace used in the Kubernetes cluster (default "default")
       --nat-nic-type string               NIC Type used for nat network. One of Am79C970A, Am79C973, 82540EM, 82543GC, 82545EM, or virtio (virtualbox driver only) (default "virtio")
       --native-ssh                        Use native Golang SSH client (default true). Set to 'false' to use the command line 'ssh' command when accessing the docker machine. Useful for the machine drivers when they will not start with 'Waiting for SSH'. (default true)
       --network-plugin string             Kubelet network plug-in to use (default: auto)