Elasticsearch Helm Chart using the Bitnami repository

Login to the Master Node/Server

ssh nickm@10.154.2.90

sudo su -

cd /root/k3s/k3s-helm-charts/elasticsearch/

If you have not installed Helm 3.11 yet do this:

Installing Helm 3.11 on a Linux Server

1. When working with K3S you need to run this command

export KUBECONFIG=/etc/rancher/k3s/k3s.yaml

1.1 You can edit the .bashrc file put this on the top

nano ~/.bashrc

Reboot the server

sudo reboot

2. Find the Helm Chart in the Repository

You can search for Helm Charts here:
https://artifacthub.io/

3. Search for elasticsearch (prefer a Bitnami Repository if found)

Searching for elasticsearch brings you here:
This one uses the Bitnami Repository Maintained by (Novel) VMware https://artifacthub.io/packages/helm/bitnami/elasticsearch \

4. Adding the Repiository locally (Bitnami)

  1. Click on the Install Button
  2. Copy the command under “Add Repository” section Expect to get
helm repo add bitnami https://charts.bitnami.com/bitnami

run the above command on the server

  1. close the Pop Up that was launched when you pressed the Install Button

5. Creating the Values Yaml file

  1. Click on the Default Values Button
  2. Click on the button with a icon of a Cloud It will try to download the folowing file:
values-elasticsearch.yaml
  1. copy this file name and create a file on the server with that file name
nano values-elasticsearch.yaml
  1. close the download Pop Up by pressing the Cancel Button
  2. Click on the button with an icon with two squares
  3. this will copy the content of the Yaml file to your clipboard
  4. paste this content into your text editor and save it
  5. In the browser click the close Button

6. Create the namespace

run these commands

kubectl get namespaces
kubectl create namespace nico-elasticsearch

kubectl get namespaces

7. Get the Helm Chart Install command

  1. Click on the Install Button
  2. Copy the command under “Install chart” section Expect to get
helm install my-elasticsearch bitnami/elasticsearch --version 19.6.0

change the release name to: my-elasticsearch-release

7. Testing the Helm Chart

Test 1

  1. Take the above command and change the word install to template you should now have
helm template my-elasticsearch-release bitnami/elasticsearch --version 19.6.0

Now run the above command and expect to not have errors

Test 2

  1. add the following to the end of the above command: -f values-elasticsearch.yaml
  2. you should now have
helm template my-elasticsearch-release bitnami/elasticsearch --version 19.6.0 -f values-elasticsearch.yaml

run the above command and expect to not have errors

8. Installing the Helm Chart (Deploying)

  1. take the above command change the word template to install and add the folowing to the end : –namespace nico-elasticsearch
  2. you should nw have:
helm install my-elasticsearch-release bitnami/elasticsearch --version 19.6.0 -f values-elasticsearch.yaml --namespace nico-elasticsearch
  1. run the above command

9. Verifying the deployment

  1. run this command:
helm list -n nico-elasticsearch

helm list --all-namespaces
  1. run this command
kubectl get all -o wide -n nico-elasticsearch

10. Updating the values yaml file

Whenever you need to make changes to your deployment

  1. run this command and make your changes
nano values-elasticsearch.yaml

10.1 Test your changes

  1. Run this command:
helm template my-elasticsearch-release bitnami/elasticsearch --version 19.6.0 -f values-elasticsearch.yaml

10.2 Upgrade your Helm Chart to implement these Updates

  1. Run this command:
helm upgrade my-elasticsearch-release bitnami/elasticsearch --version 19.6.0 -f values-elasticsearch.yaml --namespace nico-elasticsearch

10.3 Verifying the deployment

  1. run this command:
helm list -n nico-elasticsearch
  1. run this command
kubectl get all -o wide -n nico-elasticsearch

11. The Cleanup

run these commands

helm delete my-elasticsearch-release -n nico-elasticsearch
helm list --all-namespaces

kubectl get namespaces

kubectl delete namespace nico-elasticsearch
kubectl get namespaces

helm list --all-namespaces
kubectl get all --all-namespaces