OpenSearch

Here’s a step-by-step guide to deploying OpenSearch using the opensearchproject/opensearch Docker image on Akash, a decentralized cloud computing platform.

Step 1: Install Akash CLI

1. Download and install the Akash CLI from the Akash GitHub releases page.
2. Ensure you have an Akash wallet with sufficient funds for deployment.

Step 2: Write the SDL Deployment File

Create a file called deploy.yaml for your OpenSearch deployment. Here’s a sample SDL template:

---
version: "2.0"

services:
  opensearch:
    image: opensearchproject/opensearch:latest
    env:
      - discovery.type=single-node # For standalone mode
    expose:
      - port: 9200
        as: 9200
        to:
          - global
      - port: 9600
        as: 9600
        to:
          - global

profiles:
  compute:
    opensearch:
      resources:
        cpu:
          units: 2
        memory:
          size: 4Gi
        storage:
          size: 10Gi
  placement:
    akash:
      pricing:
        opensearch:
          denom: uakt
          amount: 100

deployment:
  opensearch:
    opensearch:
      profile: opensearch
      count: 1
    placement:
      akash:
        profile: akash
        count: 1

Step 3: Deploy the SDL File on Akash

1. Upload the SDL File: Run the following command to validate and create a deployment from your SDL file:

   provider-services tx deployment create deploy.yaml --from <wallet-name> --chain-id <chain-id> --node <node-url>

2. Wait for Deployment Approval: Akash will broadcast the deployment transaction. Wait for a provider to accept your bid.

3. Lease the Deployment: Once a bid is accepted, lease the deployment by running:

   provider-services tx market lease create --dseq <deployment-sequence> --oseq 1 --gseq 1 --from <wallet-name>

4. Query Lease Details: Use the following command to get the deployment’s IP address:

   provider-services provider lease-status --dseq <deployment-sequence> --oseq 1 --gseq 1 --provider <provider-address>

Step 4: Access OpenSearch

1. Once deployed, OpenSearch will be available at the provider’s public IP and port (e.g., http://<provider-ip>:9200).
2. Use tools like curl or any HTTP client to interact with the OpenSearch API:

   curl -X GET "http://<provider-ip>:9200/_cat/health?v"

Step 5: Monitor OpenSearch

OpenSearch exposes a monitoring endpoint at port 9600. Access metrics and logs using:

curl -X GET "http://<provider-ip>:9600/_nodes/stats"

Optional: Persist Data Using External Storage

By default, Akash deployments are stateless, and data will be lost if the container is restarted. To persist data:

1. Modify the SDL to include an external volume:

   services:
     opensearch:
       volumes:
         - /data:/mnt/data/opensearch

2. Attach persistent storage using Akash’s storage solutions.

This configuration deploys a single-node OpenSearch setup. For clustering, update the discovery.type and network configurations accordingly. Let me know if you’d like additional customization!