k8s-playground is based Kubeclust .
k8s-playground sets up a kubernetes cluster on three VirtualBox virtual machines (one master and two workers) running Ubuntu 18.04 LTS using kubeadm.
- k8s specific version = 1.11.0
- docker specific version = docker-ce:17.03
- Use a pod network flannel
- increase master's memory
- Virtual environment with Python3
- Virtualbox
$ git clone https://github.com/redtree0/k8sPlayground
$ cd k8sPlayground
$ pip install virtualenv
$ virtualenv -p python3 k8s_env
$ source k8s_env/bin/activate
In the virtual environment, run
$ pip install -r requirements.txt
Install ansible roles.
$ ansible-galaxy install -r requirements.yml -p roles/
Run vagrant up to bring up three virtual machines.
The hostnames and IP addresses of the machines are as follows:
kubemaster — 192.168.99.20
worker1 – 192.168.99.21
worker2 – 192.168.99.22
$ make cluster
As soon as it is done, you can ssh into kubemaster using vagrant ssh kubemaster to see the nodes in the cluster by running kubectl get nodes. They may take a while to get ready. You should see something like this:
NAME STATUS ROLES AGE VERSION
kubemaster Ready master 6m v1.11.0
worker1 Ready <none> 5m v1.11.0
worker2 Ready <none> 5m v1.11.0
[kubernetes-with-flannel] (https://medium.com/@anilkreddyr/kubernetes-with-flannel-understanding-the-networking-part-1-7e1fe51820e4)
$ make clean
This will drain the nodes, make sure that they are empty before shutting them down and reset all kubeadm installed state.