k8s-concepts's Introduction

K8S-Concepts

How to run

Clone repository:

$ git clone https://github.gamesys.co.uk/Filipe-Costa/k8s-concepts

Open the terminal and run the following commands:

$ minikube config set WantVirtualBoxDriverWarning false
$ minikube config set driver virtualbox
$ minikube config set cpus 2
$ minikube config set memory 8192
$ minikube start

Wait for minikube to start then activate ingress addon:

$ minikube addons enable ingress

On the same terminal window run (to allow minikube to run local docker images):

$ eval $(minikube docker-env)

Run the following commands in order:

$ Make build
$ Make create-ns
$ Make create-pv
$ Make chi-svc

Wait a minute or two between each of these services:

$ Make elastic-svc
$ Make fluentd-svc
$ Make kibana-svc

Run the following command:

$ minikube ip

Copy the IP and add it to your /etc/hosts file (don't forget to save it):

$ sudo nano /etc/hosts


<ip> chi.com, logging.com

You can now access the pages through your browser window:

http://chi.com/healthz -> returns OK

http://logging.com/kibana -> returns Kibana dashboard

Setup Index Pattern in Kibana:

Management > Stack Management > Index Patterns > Create Index Pattern
Add logstash* to the index pattern

Check if Fluentd is aggregating logs correctly:

curl -v http://chi.com/healthz
Go to http://logging.com/kibana > Discovery > Analytics > Type chi-svc in the search bar, it should show that the endpoint has been hit.

Todo

Understand why Fluentd image doesn't allow to read custom logs stored at /data/logs (probably a lack of permissions?)
- Most probably related to the configuration setup.