minikube is a tool to set up a single-node Kubernetes cluster.
- enough for exploring most topics
Current version: Minikube 0.25.0 with Kubernetes 1.9
Use minikube update-check to print current and latest version number.
$ minikube update-check
CurrentVersion: v0.25.0
LatestVersion: v0.25.0
Use Minikube Release Notes to know the latest version of minikube.
$ which minikube
/usr/local/bin/minikube
$ minikube version
minikube version: v0.25.0
$ minikube start
Starting local Kubernetes v1.9.0 cluster...
Starting VM...
Getting VM IP address...
Moving files into cluster...
Downloading localkube binary
162.41 MB / 162.41 MB [============================================] 100.00% 0s
0 B / 65 B [----------------------------------------------------------] 0.00%
65 B / 65 B [======================================================] 100.00% 0sSetting up certs...
Connecting to cluster...
Setting up kubeconfig...
Starting cluster components...
Kubectl is now configured to use the cluster.
Loading cached images from config file.
$ minikube status
minikube: Running
cluster: Running
kubectl: Correctly Configured: pointing to minikube-vm at 192.168.99.100
$ kubectl cluster-info
Kubernetes master is running at https://192.168.99.100:8443
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
$ kubectl version
Client Version: version.Info{Major:"1", Minor:"9", GitVersion:"v1.9.2", GitCommit:"5fa2db2bd46ac79e5e00a4e6ed24191080aa463b", GitTreeState:"clean", BuildDate:"2018-01-18T21:12:46Z", GoVersion:"go1.9.2", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"", Minor:"", GitVersion:"v1.9.0", GitCommit:"925c127ec6b946659ad0fd596fa959be43f0cc05", GitTreeState:"clean", BuildDate:"2018-01-26T19:04:38Z", GoVersion:"go1.9.1", Compiler:"gc", Platform:"linux/amd64"}
$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
minikube Ready <none> 15d v1.9.0
$ kubectl describe node minikube
Name: minikube
Roles: <none>
Labels: beta.kubernetes.io/arch=amd64
beta.kubernetes.io/os=linux
kubernetes.io/hostname=minikube
Annotations: alpha.kubernetes.io/provided-node-ip=192.168.99.100
node.alpha.kubernetes.io/ttl=0
volumes.kubernetes.io/controller-managed-attach-detach=true
Taints: <none>
CreationTimestamp: Mon, 22 Jan 2018 22:09:48 +0100
...
// Open http://192.168.99.100:30000 in the default browser
$ minikube dashboard
Opening kubernetes dashboard in default browser...
$ eval $(minikube docker-env)
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4f43c0e3addd fed89e8b4248 "/sidecar --v=2 --lo…" About an hour ago Up About an hour k8s_sidecar_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_3
a59c7ed907b8 k8s.gcr.io/k8s-dns-kube-dns-amd64 "/kube-dns --domain=…" About an hour ago Up About an hour k8s_kubedns_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_3
e4138d046670 459944ce8cc4 "/dnsmasq-nanny -v=2…" About an hour ago Up About an hour k8s_dnsmasq_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_3
03c7639e4a1b k8s.gcr.io/kubernetes-dashboard-amd64 "/dashboard --insecu…" About an hour ago Up About an hour k8s_kubernetes-dashboard_kubernetes-dashboard-77d8b98585-95z8f_kube-system_43425126-09ee-11e8-a4fb-080027beab3f_3
f072c858c73d gcr.io/google-containers/kube-addon-manager "/opt/kube-addons.sh" About an hour ago Up About an hour k8s_kube-addon-manager_kube-addon-manager-minikube_kube-system_c4c3188325a93a2d7fb1714e1abf1259_3
033ca27a65c7 gcr.io/k8s-minikube/storage-provisioner "/storage-provisioner" About an hour ago Up About an hour k8s_storage-provisioner_storage-provisioner_kube-system_9854d9af-ffb8-11e7-bd26-080027beab3f_4
b39b9a71a643 gcr.io/google_containers/pause-amd64:3.0 "/pause" About an hour ago Up About an hour k8s_POD_kubernetes-dashboard-77d8b98585-95z8f_kube-system_43425126-09ee-11e8-a4fb-080027beab3f_3
39ac50871bc7 gcr.io/google_containers/pause-amd64:3.0 "/pause" About an hour ago Up About an hour k8s_POD_storage-provisioner_kube-system_9854d9af-ffb8-11e7-bd26-080027beab3f_4
5c7f5b542eed gcr.io/google_containers/pause-amd64:3.0 "/pause" About an hour ago Up About an hour k8s_POD_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_3
622b981f6066 gcr.io/google_containers/pause-amd64:3.0 "/pause" About an hour ago Up About an hour k8s_POD_kube-addon-manager-minikube_kube-system_c4c3188325a93a2d7fb1714e1abf1259_3
$ minikube stop
Stopping local Kubernetes cluster...
Machine stopped.
$ minikube ssh
_ _
_ _ ( ) ( )
___ ___ (_) ___ (_)| |/') _ _ | |_ __
/' _ ` _ `\| |/' _ `\| || , < ( ) ( )| '_`\ /'__`\
| ( ) ( ) || || ( ) || || |\`\ | (_) || |_) )( ___/
(_) (_) (_)(_)(_) (_)(_)(_) (_)`\___/'(_,__/'`\____)
$ uname -a
Linux minikube 4.9.13 #1 SMP Thu Oct 19 17:14:00 UTC 2017 x86_64 GNU/Linux
// Let’s look around and review the configuration (as if we were using the real Kubernetes head node)
// systemctl status kubelet
// /etc/systemd/system/kubelet.service.d/
$ systemctl status
● minikube
State: running
Jobs: 0 queued
Failed: 0 units
Since: Wed 2018-02-07 08:18:33 UTC; 46min ago
CGroup: /
...
$ systemctl status localkube
● localkube.service - Localkube
Loaded: loaded (/etc/systemd/system/localkube.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2018-02-07 08:18:58 UTC; 45min ago
Docs: https://github.com/kubernetes/minikube/tree/master/pkg/localkube
Main PID: 3200 (localkube)
Tasks: 16 (limit: 4915)
Memory: 387.5M
CPU: 3min 18.720s
CGroup: /system.slice/localkube.service
└─3200 /usr/local/bin/localkube --dns-domain=cluster.local --node-ip=192.168.99.100 --generate-certs=false --logtostderr=true --enable-dns=false
Feb 07 08:58:55 minikube localkube[3200]: store.index: compact 5229
Feb 07 08:58:55 minikube localkube[3200]: finished scheduled compaction at 5229 (took 360.927µs)
Feb 07 08:59:03 minikube localkube[3200]: E0207 08:59:03.130887 3200 healthcheck.go:317] Failed to start node healthz on 0: listen tcp: address 0: missing port in address
Feb 07 09:00:03 minikube localkube[3200]: E0207 09:00:03.131343 3200 healthcheck.go:317] Failed to start node healthz on 0: listen tcp: address 0: missing port in address
Feb 07 09:01:03 minikube localkube[3200]: E0207 09:01:03.131920 3200 healthcheck.go:317] Failed to start node healthz on 0: listen tcp: address 0: missing port in address
Feb 07 09:02:03 minikube localkube[3200]: E0207 09:02:03.132321 3200 healthcheck.go:317] Failed to start node healthz on 0: listen tcp: address 0: missing port in address
Feb 07 09:03:03 minikube localkube[3200]: E0207 09:03:03.133390 3200 healthcheck.go:317] Failed to start node healthz on 0: listen tcp: address 0: missing port in address
Feb 07 09:03:55 minikube localkube[3200]: store.index: compact 5411
Feb 07 09:03:55 minikube localkube[3200]: finished scheduled compaction at 5411 (took 508.142µs)
Feb 07 09:04:03 minikube localkube[3200]: E0207 09:04:03.134138 3200 healthcheck.go:317] Failed to start node healthz on 0: listen tcp: address 0: missing port in address
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
57e7299e9762 fed89e8b4248 "/sidecar --v=2 --..." About a minute ago Up About a minute k8s_sidecar_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_4
00fb16c937ef k8s.gcr.io/k8s-dns-kube-dns-amd64 "/kube-dns --domai..." About a minute ago Up About a minute k8s_kubedns_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_4
23dc5d200f28 k8s.gcr.io/kubernetes-dashboard-amd64 "/dashboard --inse..." About a minute ago Up About a minute k8s_kubernetes-dashboard_kubernetes-dashboard-77d8b98585-95z8f_kube-system_43425126-09ee-11e8-a4fb-080027beab3f_4
308baba19572 459944ce8cc4 "/dnsmasq-nanny -v..." About a minute ago Up About a minute k8s_dnsmasq_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_4
d5739b03dd46 gcr.io/google-containers/kube-addon-manager "/opt/kube-addons.sh" About a minute ago Up About a minute k8s_kube-addon-manager_kube-addon-manager-minikube_kube-system_c4c3188325a93a2d7fb1714e1abf1259_4
db2ada38e57d gcr.io/google_containers/pause-amd64:3.0 "/pause" About a minute ago Up About a minute k8s_POD_kubernetes-dashboard-77d8b98585-95z8f_kube-system_43425126-09ee-11e8-a4fb-080027beab3f_4
af0365a5313e gcr.io/k8s-minikube/storage-provisioner "/storage-provisioner" About a minute ago Up About a minute k8s_storage-provisioner_storage-provisioner_kube-system_9854d9af-ffb8-11e7-bd26-080027beab3f_5
7e2999a4df87 gcr.io/google_containers/pause-amd64:3.0 "/pause" About a minute ago Up About a minute k8s_POD_kube-dns-6777479f6b-5p6s2_kube-system_435953f7-09ee-11e8-a4fb-080027beab3f_4
f2c3038f70e9 gcr.io/google_containers/pause-amd64:3.0 "/pause" About a minute ago Up About a minute k8s_POD_storage-provisioner_kube-system_9854d9af-ffb8-11e7-bd26-080027beab3f_5
ada76588316e gcr.io/google_containers/pause-amd64:3.0 "/pause" About a minute ago Up About a minute k8s_POD_kube-addon-manager-minikube_kube-system_c4c3188325a93a2d7fb1714e1abf1259_4
$ exit
logout
// https://github.com/kubernetes/minikube/pull/2272
$ ./out/minikube cache add ubuntu:16.04 redis:3
$ ./out/minikube cache list
Official docs: Installing minikube
- Install a Hypervisor, e.g. VirtualBox 5.2.6
- brew install kubectl
- brew cask install minikube
brew cask reinstall minikubeto reinstall and upgrade minikube- https://github.com/kubernetes/minikube/blob/v0.25.0/README.md