OpenSearch - Kubernetes

Prerequisite

Install minikube and Docker.

Setup minikube:

minikube config set driver docker # set Docker as minikube driver
minikube config set cpus 4 # adjust depending on your needs
minikube config set memory 8000MB

Setup certificates

A script is provided to help you generate some certificates (setup_certs.sh). Run it. Then replace the values inside the certs-secrets folder with the values of the certificates you just generated.

Then create the secrets:

kubectl apply -f certs-secrets/

OpenSearch

Choose the number of master and data nodes you want in your cluster and modify the replicas count in the opensearch/master.yml and opensearch/data.yml file.

If you choose to have more than 1 master node, be sure to change the cluster.initial_master_nodes options in opensearch/configmap.yml.

For example, if you decide to have 3 master nodes, you will need to put:

cluster.initial_master_nodes: opensearch-master-0,opensearch-master-1,opensearch-master-2

Choose the port where you want to access opensearch in the spec.ports[0].nodePort options in opensearch/service.yml. (by default it will be accessible on port 30002)

You can now launch your opensearch cluster

kubectl apply -f opensearch/

Make sure to also launch the security-admin job to initialize the security plugin.

kubectl apply -f security-admin

OpenSearch Dashboards

Choose the number of replicas and set the replicas count accordingly in dashboards/dashboards.yml.

Choose the port where you want to access dashboards in the spec.ports[0].nodePort options in dashboards/service.yml. (by default it will be accessible on port 30003)

kubectl apply -f dashboards/

Access services

Use the minikube command: minikube service list to get the public IP address of Opensearch and Dashboards.