Skip to main content

Kubernetes : Minikube on CentOS 7

Deploy  Kubernetes on a developer's workstation.

This example is on CentOS 7with KVM. It is a VM. It can be used to develop applications locally and then publish them to OpenShift, GCE or even Azure AKS. 

Install the required packages and start libvirt

yum -y install qemu-kvm libvirt libvirt-daemon-kvm
systemctl enable --now libvirtd

Setup the repo for Kubernetes.

cat <<'EOF' > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-$basearch
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
EOF

Install Kubectl

yum -y install kubectl

Download the minikube binary and docker machine driver

wget https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 -O minikube
wget https://storage.googleapis.com/minikube/releases/latest/docker-machine-driver-kvm2
chmod 755 minikube docker-machine-driver-kvm2
mv minikube docker-machine-driver-kvm2 /usr/local/bin/

Run a quick minikube check to make sure it's working.

minikube version

minikube version: v1.0.1

Run a kubectl check

kubectl -o json
{
  "clientVersion": {
    "major": "1",
    "minor": "14",
    "gitVersion": "v1.14.1",
    "gitCommit": "b7394102d6ef778017f2ca4046abbaa23b88c290",
    "gitTreeState": "clean",
    "buildDate": "2019-04-08T17:11:31Z",
    "goVersion": "go1.12.1",
    "compiler": "gc",
    "platform": "linux/amd64"
  }
}

Start minikube

minikube start --vm-driver kvm2

After the the start command runs, check the status

minikube status

You should see out put like this.

host: Running
kubelet: Running
apiserver: Running
kubectl: Correctly Configured: pointing to minikube-vm at 192.168.39.33

Setup the environment

minikube docker-env

Output will look like this:

Kubernetes master is running at https://192.168.39.33:8443
KubeDNS is running at https://192.168.39.33:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

Log into the minikube

minikube ssh

Check the docker status

docker ps

At this point you are in a normal VM shell. All tools work as expected.

To stop minikube.

minikube stop

To remove minikube, do like follows

minikube delete

 

Back to top