Minikube – a utility to run a Kubernetes cluster locally on your PC.
It can use Virtualbox, VMware, Hyper-V etc hypervisors which will be used to create a virtual machine with a Kubernetes cluster.
Minikube is a great tool for developers or DevOps engineers to test deployments/services etc without the need to create and configure a real cluster.
In the post below – a quick HowTo install it and run a Kubernetes pod using the Minikube.
In Arch Linux can be installed from AUR:
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$ yaourt -S minikube
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If you haven’t Virtualbox yet – install it, here it will be used for Minikube:
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$ sudo pacman -S virtualbox
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minikube will work with Kubernetes via kubectl – install it as well:
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$ yaourt -S kubectl
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Now check it.
Start Minikube itself:
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$ minikube start 😄 minikube v0.35.0 on linux (amd64) 🔥 Creating virtualbox VM (CPUs=2, Memory=2048MB, Disk=20000MB) ... 💿 Downloading Minikube ISO ... 184.42 MB / 184.42 MB [============================================] 100.00% 0s 📶 "minikube" IP address is 192.168.99.100 🐳 Configuring Docker as the container runtime ... ✨ Preparing Kubernetes environment ... 💾 Downloading kubelet v1.13.4 💾 Downloading kubeadm v1.13.4 🚜 Pulling images required by Kubernetes v1.13.4 ... 🚀 Launching Kubernetes v1.13.4 using kubeadm ... ⌛ Waiting for pods: apiserver proxy etcd scheduler controller addon-manager dns 🔑 Configuring cluster permissions ... 🤔 Verifying component health ..... 💗 kubectl is now configured to use "minikube" 🏄 Done! Thank you for using minikube!
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Check Virtualbox VMs running:
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$ VBoxManage list runningvms
"minikube" {37da5f2d-c486-4419-a152-eb5dcedde6f3}
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Create a new pod:
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$ kubectl run hello-minikube --image=gcr.io/google_containers/echoserver:1.4 --port=8080 kubectl run --generator=deployment/apps.v1 is DEPRECATED and will be removed in a future version. Use kubectl run --generator=run-pod/v1 or kubectl create instead. deployment.apps/hello-minikube created
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Run the service:
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$ kubectl expose deployment hello-minikube --type=NodePort service "hello-minikube" exposed
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List pods:
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$ kubectl get pod NAME READY STATUS RESTARTS AGE hello-minikube-5857d96c67-x46nk 1/1 Running 0 74s
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And check the service itself:
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$ curl $(minikube service hello-minikube --url) CLIENT VALUES: client_address=172.17.0.1 command=GET real path=/ query=nil request_version=1.1 request_uri=http://192.168.99.100:8080/ SERVER VALUES: server_version=nginx: 1.10.0 - lua: 10001 HEADERS RECEIVED: accept=*/* host=192.168.99.100:31345 user-agent=curl/7.64.0 BODY: -no body in request-
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After you’ll finish – stop and delete VMs, pods, and services:
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$ minikube stop ✋ Stopping "minikube" in virtualbox ... 🛑 "minikube" stopped.
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Done.
