Let's look at an example of how to launch a Kubernetes cluster from scratch on DigitalOcean, including kubeadm, an Nginx Ingress controller, and Letsencrypt certificates.
We'll be creating a four-node cluster (k8s-master, k8s-000...k8s-002), load balancer, and ssl certificates.
| #!/usr/bin/env python | |
| """ | |
| urlnorm.py - URL normalisation routines | |
| urlnorm normalises a URL by; | |
| * lowercasing the scheme and hostname | |
| * taking out default port if present (e.g., http://www.foo.com:80/) | |
| * collapsing the path (./, ../, etc) | |
| * removing the last character in the hostname if it is '.' |
| function generate_osid($length) | |
| { | |
| $rand = ''; | |
| for($i = 0; $i < $length; $i++) | |
| { | |
| $number = mt_rand(0, 61); | |
| if($number < 10) | |
| { |
