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Deployment

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      Transition from dev environment to prod, and keep up with the latest fixes.

      One of Couchbase’s strengths is speedy response, so deployment of apps should be in the same region as the Server — whether Capella, or your own self-managed cluster.

      We always recommend the latest version of the SDK. This not only contains the latest security updates and bug fixes, but will be compatible with the latest Couchbase Server release (note, Capella always runs a recent version of Couchbase Server).

      Before deploying, take note of any compatibility issues for the language platform and underlying OS. The full installation guide should cover any special cases for all supported environments.

      Development & Testing Environments

      During development, some shortcuts are taken to get up and running which would not be acceptable during deployment. These include use of administrator permissions, connecting from your laptop instead of a secure app server, and even disabling certificate verification for TLS. Testing environments may also differ from deployment.

      The Rust SDK docs note whenever a shortcut is being taken, but here is a non-exhaustive list of those development practices which should not be carried over to production deployments:

      • Over-priveleged access

      • Geographical separation of app server and database

      • Skipping certificate verification

      The best way to accommodate developing an application that is to be deployed to production is to use toml files.

      Couchbase Operational Cluster Feature Compatibility

      All of the SDKs have API compatibility with most of the features in Couchbase Operational clusters — whether self-managed, or Capella. The following table covers possible exceptions, and gives the version of the Rust SDK and Couchbase Server with which some features were introduced.

      Table 1. Couchbase Server and SDK Supported Version Matrix
      Server 7.6.x Server 8.0

      KV Range Scan

      All SDK versions

      Vector Search

      All SDK versions

      Zone aware replica reads

      All SDK versions

      KV preferred server groups reads

      All SDK versions

      Vector Query using GSI

      N/A

      All SDK versions

      Distributed ACID Transactions

      N/A

      Response Time Observability

      All supported SDK versions

      Field Level Encryption

      N/A

      Cloud Native Gateway

      N/A

      Further Reading

      Deploying Couchbase Server