minikube
minikube is local Kubernetes, focusing on making it easy to learn and develop for Kubernetes.
All you need is Docker (or similarly compatible) container or a Virtual Machine environment, and Kubernetes is a single command away: minikube start
To install the latest minikube stable release on x86-64 Linux using binary download:
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube
[xwl@VM-0-15-centos ~]$ curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 73.1M 100 73.1M 0 0 13.3M 0 0:00:05 0:00:05 --:--:-- 12.3M
[xwl@VM-0-15-centos ~]$ sudo install minikube-linux-amd64 /usr/local/bin/minikube
[xwl@VM-0-15-centos ~]$ minikube version
minikube version: v1.28.0
commit: 986b1ebd987211ed16f8cc10aed7d2c42fc8392f
[xwl@VM-0-15-centos ~]$ docker version
Client: Docker Engine - Community
Version: 20.10.5
API version: 1.41
Go version: go1.13.15
Git commit: 55c4c88
Built: Tue Mar 2 20:33:55 2021
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.5
API version: 1.41 (minimum version 1.12)
Go version: go1.13.15
Git commit: 363e9a8
Built: Tue Mar 2 20:32:17 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.4
GitCommit: 05f951a3781f4f2c1911b05e61c160e9c30eaa8e
runc:
Version: 1.0.0-rc93
GitCommit: 12644e614e25b05da6fd08a38ffa0cfe1903fdec
docker-init:
Version: 0.19.0
GitCommit: de40ad0
[xwl@VM-0-15-centos ~]$ minikube start
* minikube v1.28.0 on Centos 7.9.2009 (amd64)
* Automatically selected the docker driver. Other choices: ssh, none
* Using Docker driver with root privileges
* Starting control plane node minikube in cluster minikube
* Pulling base image ...
* Downloading Kubernetes v1.25.3 preload ...
> preloaded-images-k8s-v18-v1...: 385.44 MiB / 385.44 MiB 100.00% 8.46 Mi
> gcr.io/k8s-minikube/kicbase: 386.27 MiB / 386.27 MiB 100.00% 5.46 MiB p
> gcr.io/k8s-minikube/kicbase: 0 B [________________________] ?% ? p/s 36s
* Creating docker container (CPUs=2, Memory=3900MB) ...
* Preparing Kubernetes v1.25.3 on Docker 20.10.20 ...
- Generating certificates and keys ...
- Booting up control plane ...
- Configuring RBAC rules ...
* Verifying Kubernetes components...
- Using image gcr.io/k8s-minikube/storage-provisioner:v5
* Enabled addons: storage-provisioner, default-storageclass
* kubectl not found. If you need it, try: 'minikube kubectl -- get pods -A'
* Done! kubectl is now configured to use "minikube" cluster and "default" namespace by defaultDashboard
minikube has integrated support for the Kubernetes Dashboard UI.
The Dashboard is a web-based Kubernetes user interface. You can use it to:
- deploy containerized applications to a Kubernetes cluster
- troubleshoot your containerized application
- manage the cluster resources
- get an overview of applications running on your cluster
- creating or modifying individual Kubernetes resources (such as Deployments, Jobs, DaemonSets, etc)
For example, you can scale a Deployment, initiate a rolling update, restart a pod or deploy new applications using a deploy wizard.
To access the dashboard:
minikube dashboard
If you don’t want to open a web browser, the dashboard command can also simply emit a URL:
minikube dashboard --url
kubectl
The Kubernetes command-line tool, kubectl, allows you to run commands against Kubernetes clusters. You can use kubectl to deploy applications, inspect and manage cluster resources, and view logs. For more information including a complete list of kubectl operations, see the kubectl reference documentation.
Use kubectl inside minikube
[xwl@VM-0-15-centos ~]$ alias kubectl=”minikube kubectl –“
[xwl@VM-0-15-centos ~]$ kubectl version
> kubectl.sha256: 64 B / 64 B [————————-] 100.00% ? p/s 0s
> kubectl: 42.93 MiB / 42.93 MiB [————] 100.00% 16.38 MiB p/s 2.8s
WARNING: This version information is deprecated and will be replaced with the output from kubectl version –short. Use –output=yaml|json to get the full version.
Client Version: version.Info{Major:”1″, Minor:”25″, GitVersion:”v1.25.3″, GitCommit:”434bfd82814af038ad94d62ebe59b133fcb50506″, GitTreeState:”clean”, BuildDate:”2022-10-12T10:57:26Z”, GoVersion:”go1.19.2″, Compiler:”gc”, Platform:”linux/amd64″}
Kustomize Version: v4.5.7
Server Version: version.Info{Major:”1″, Minor:”25″, GitVersion:”v1.25.3″, GitCommit:”434bfd82814af038ad94d62ebe59b133fcb50506″, GitTreeState:”clean”, BuildDate:”2022-10-12T10:49:09Z”, GoVersion:”go1.19.2″, Compiler:”gc”, Platform:”linux/amd64″}
[xwl@VM-0-15-centos ~]$ kubectl version –short
Flag –short has been deprecated, and will be removed in the future. The –short output will become the default.
Client Version: v1.25.3
Kustomize Version: v4.5.7
Server Version: v1.25.3
[xwl@VM-0-15-centos ~]$ kubectl get po -A
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-565d847f94-96ddg 1/1 Running 0 24m
kube-system etcd-minikube 1/1 Running 0 24m
kube-system kube-apiserver-minikube 1/1 Running 0 24m
kube-system kube-controller-manager-minikube 1/1 Running 0 24m
kube-system kube-proxy-phgl7 1/1 Running 0 24m
kube-system kube-scheduler-minikube 1/1 Running 0 24m
kube-system storage-provisioner 1/1 Running 1 (23m ago) 24m