Why go through the trouble of setting up a home lab for k8s? Well, while using public cloud services is a quick and easy way it will cost money to deploy and run. It will also rely upon predefined cloud formation templates which have already been created. Doing it locally can provide both a more economical way to use k8s as well as give more insight into the internal workings and how it’s actually set up.
Why not use Minikube? Because it’s overly simplified. Using a cluster deployment like this is not only a better learning and testing experience but it also provides an overall more realistic experience of a “real” k8s installation.
Download the Vagrant, Flannel and MetalLB files from GitHub or clone with Git
jonas@octo:~$ sudo apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main"
Hit:1 http://jp.archive.ubuntu.com/ubuntu bionic InRelease
Get:2 https://nvidia.github.io/libnvidia-container/ubuntu18.04/amd64 InRelease [1,106 B]
Get:3 https://nvidia.github.io/nvidia-container-runtime/ubuntu18.04/amd64 InRelease [1,103 B]
Hit:4 http://jp.archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:5 https://download.docker.com/linux/ubuntu bionic InRelease
Get:6 https://nvidia.github.io/nvidia-docker/ubuntu18.04/amd64 InRelease [1,096 B]
Hit:7 http://jp.archive.ubuntu.com/ubuntu bionic-backports InRelease
Hit:9 http://security.ubuntu.com/ubuntu bionic-security InRelease
Get:8 https://packages.cloud.google.com/apt kubernetes-xenial InRelease [8,993 B]
Err:8 https://packages.cloud.google.com/apt kubernetes-xenial InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A030B21BA07F4FB
Hit:10 https://cf-cli-debian-repo.s3.amazonaws.com stable InRelease
Reading package lists… Done
W: GPG error: https://packages.cloud.google.com/apt kubernetes-xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A030B21BA07F4FB
E: The repository 'http://apt.kubernetes.io kubernetes-xenial InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.