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@detiber
detiber / README.md
Last active October 24, 2024 05:56
Using CFSSL as an external CA for kubeadm

CFSSL as an external CA for non-ha kubeadm intialized clusters

Using cfssl to Create an External CA Infrastructure

Install cfssl

# This requires an existing Go environment with GOPATH set
go get -u github.com/cloudflare/cfssl/cmd/...
@miry
miry / 01_extract_crt.rb
Last active September 3, 2023 06:32
Extract certificate from the kubernetes config.
require 'optparse'
require 'yaml'
require 'base64'
options = {
config_path: File.join(ENV['HOME'], '.kube', 'config'),
write_dir: File.join(ENV['HOME'], '.kube')
}
OptionParser.new do |opts|