Couchbase

Couchbase is a distributed NoSQL database designed for interactive applications. It combines the benefits of a memory-first architecture, rich query capabilities, and a powerful indexing engine. Couchbase is often used for applications requiring high availability, scalability, and performance.

Key Features of Couchbase:

• JSON Data Storage: Flexible schema to adapt to dynamic application needs.
• N1QL Query Language: SQL-like query syntax for JSON data.
• Memory-First Architecture: Ensures low latency and high throughput.
• Distributed Architecture: Supports horizontal scaling.
• Full-Text Search: Built-in capabilities for advanced text-based queries.
• Cross-Data Center Replication (XDCR): Enables data replication across geographically distributed clusters.

Deploying Couchbase on Akash

Akash is a decentralized cloud computing platform that allows developers to deploy containerized applications at a lower cost than traditional cloud providers. Here’s a step-by-step guide to deploy Couchbase on Akash using the couchbase Docker image.

1. Prepare the Deployment Environment

1. Install Akash CLI:
   Follow the official Akash CLI installation guide to set up your environment.

2. Fund Your Wallet:
   Ensure your Akash wallet is funded with sufficient AKT tokens to pay for the deployment.

3. Create the Deployment Directory:
   Set up a directory on your local machine to hold the deployment files.

2. Create the SDL File

The SDL (Stack Definition Language) file specifies how Couchbase should be deployed on the Akash network.

Below is an example SDL file for deploying Couchbase:

---
version: "2.0"

services:
  couchbase:
    image: couchbase
    expose:
      - port: 8091
        as: 8091
        to:
          - global
      - port: 8092
        as: 8092
        to:
          - global
      - port: 11210
        as: 11210
        to:
          - global
      - port: 11211
        as: 11211
        to:
          - global
    env:
      - CB_USERNAME=admin           # Default Couchbase username
      - CB_PASSWORD=password        # Default Couchbase password
    resources:
      cpu:
        units: 1                    # CPU units
      memory:
        size: 2Gi                   # Memory allocation
      storage:
        size: 10Gi                  # Disk storage

profiles:
  compute:
    couchbase-profile:
      resources:
        cpu:
          units: 1
        memory:
          size: 2Gi
        storage:
          size: 10Gi
  placement:
    couchbase-placement:
      attributes:
        host: akash
      signedBy:
        anyOf:
          - akash
      pricing:
        couchbase-pricing:
          denom: uakt
          amount: 1000

deployment:
  couchbase-deployment:
    profile: couchbase-profile
    count: 1

3. Deploy the SDL File

1. Validate the SDL File: Run the following command to ensure your SDL file is correctly formatted:

   akash tx deployment validate <path-to-sdl>

2. Create the Deployment: Deploy the Couchbase service:

   akash tx deployment create <path-to-sdl> --from <your-wallet-name> --chain-id <chain-id> --node <node-url>

3. Bid and Lease Management:

   • Wait for providers to bid on your deployment.
   • Select a provider and create a lease.

4. Access Your Couchbase Service: Once the lease is created, you’ll receive the endpoint information. Use it to access Couchbase’s web UI on http://<provider-ip>:8091.

4. Configure Couchbase

1. Access the Admin UI:

   • Navigate to the Couchbase web interface using the URL provided.
   • Login using the credentials (CB_USERNAME and CB_PASSWORD) defined in the SDL file.

2. Set Up Buckets:

   • Buckets in Couchbase are similar to databases in relational systems.
   • Create buckets for your application needs.

3. Connect Your Application:

   • Use Couchbase SDKs or drivers to connect your application to the deployed Couchbase instance.

5. Monitor and Scale

• Monitor Usage:
  Use the Couchbase admin UI to monitor resource usage and performance.

• Scale the Deployment:
  Update the count field in the SDL file to scale the Couchbase deployment horizontally and redeploy.

Conclusion

Deploying Couchbase on Akash provides a cost-efficient and scalable solution for distributed applications. By leveraging Akash’s decentralized infrastructure and Couchbase’s advanced database capabilities, you can build high-performance, scalable systems with minimal overhead.