Hello kubers, welcome to kuberverse repo! This is the place where we publish the files used on our Youtube recording labs!
Here, you will find instructions on how to get ready with our labs. The labs where written with easy in mind, to help you build and play kubernetes clusters. Please, fell free to try them out!!
To run the labs you will need to have pre-installed on your computer the latest version of the following softwares:
- Vagrant by Hashicorp
- Virtualbox by Oracle
The gold rule here is more is better. As we will create clusters using virtual machines running on your desk computer or notebook, resources will be needed in the proportion of your use. To be used for study, and using my computer (an old macbook pro late 2012 retina, with a Intel Core i5 processor with 8Gb of memory) as the basis for this labs, I can assure you can run a k8s cluster with 1 master with 2Gb of memory and 2 workers with 1Gb each. This configuration fits almost all of the 6 scenarios of the CKA and the 4 scenarios of CKAD certification exams.
At this moment we have 3 labs available for you to play with:
As anounced in december 03, 2018 by the kubernetes release team in the Kubernetes 1.13 Announcement Blog Post, kubeadm is officialy GA. That means a unified and simplified method to deploy k8s clusters without the need to go manually over the steps of configuring individually each component. The scope of kubeadm is to be a toolbox for both admins and automated, higher-level system.
The templates presented here are focused on local environments to be used in a way to help you build k8s clusters with kubeadm. Let´s go through the available labs for this scenario.
This is the empty lab created for those who wants to install a k8s cluster using the kubeadm method but wish to do almost all the work manually, running the commands necessary to bring the cluster up on a step-by-step way. This template will create the boxes MASTER and WORKERS, with the base recomended OS image (ubuntu 16.04).
- you're new to kubernetes and wish to start your first cluster running all the commands needed to create your study cluster environment;
- you like to do stuffs manually ir order to have a deeper understanting of what is happening;
This is the half lab created for those who wants to install a k8s cluster using the kubeadm method but wish to optimize time. This template installs automatically all the packages upgrades to the base recomended OS image (ubuntu 16.04). This template also installs the packages for docker, kubernetes and all their dependencies. No kubernetes configuration is done here.
- you have played already with the first template and have "destroyed" your previous cluster using the vagrant destroy -f command;
- you want just to configure kubernetes but do not want to install the packages manually on each MASTER and WORKER of your setup;
- you want to play with kubeadm init on the masters and kubeadm join on the workers;
- you want to choose your networking settings (calico, flannel, etc)
This is the full lab created for those who wants to install a k8s cluster using the kubeadm method but wish to optimize even more the time. This template installs and bootstraps automatically a full cluster with the calico networking interface. This is the full cluster build that I have created to optimize your study time.
- you want a very, very, very easy way to bring a cluster up and running in a couple of minutes;
- you have studied a lot, the steps involved in the k8s cluster configuration using the kubeadm method;
- you´re curious and wish to put your hands on a cluster without being involved in the configuration steps but wants to play with kubectl;
- you´re tired to install and configure all the components necessary to bring a cluster up;
- you wish to get a coffe while the hard work is done automatically for you;