Showing posts with label ELK. Show all posts
Showing posts with label ELK. Show all posts

Tuesday, March 14, 2023

Installing the ELK stack and Fluent-Bit on Minikube on Ubuntu 20.04


This should be easy, but it took me a couple of days to successfully get it running, so that showed me that I needed to create this post. The problems are:

1. There are a LOT of out-of-date articles out there that are now just wrong (this one was written on 3/14/2023 and will be obsolete at some point; I apologize in advance if you are reading this after that point of obsolescence). It's not the fault of the authors. Components in this space are simply changing very quickly. Event some of the latest HOWTO documentation in the different github repositories is wrong (invalid/deprecated flag used, etc.)

2. The various helm charts include some example yaml files (yay!) that don't work without modification (dammit!).

3. The Fluent Bit helm chart defaults simply do not work with a default Elasticsearch install. Specifically, Elasticsearch requires (and there is no way to disable this) TLS connections with authentication, while the Fluent Bit chart is only set up for an HTTP connection to Elasticsearch with NO authentication.

So those are some of the reasons for this article.

This solution is for a DEV/practice environment. I can't possibly list all of the reasons why. Those reasons start with "it's on minikube" and include "the Elastic password is in plaintext", among many, many others.


I've uploaded the scripts as gists to Github. So all you need to do is start with a working install of Ubuntu 20.04 desktop (my test systems have been configured with 16 cores and 64GB RAM). Your user must have sudo access (you'll be prompted for the password as the scripts run) and you can run these two scripts in order:

Tuesday, October 16, 2018

You can now use Vega to create custom graphs in Kibana

Prior to Kibana 6.2, you had to create a custom plugin to create custom visualization types. Now, however, support for Vega is included. Vega is a JSON (HJSON, actually) language that you can think of as a wrapper around the D3 visualization toolkit to allow it to display in Kibana. Here's a video with the highlights: