opensearch-service

Qubership OpenSearch

Qubership OpenSearch is a comprehensive solution for deploying OpenSearch in Kubernetes with High Availability (HA), Disaster Recovery (DR), and Multi-AZ setups. Includes tools for backup management, monitoring, database as a service API and integration testing to ensure reliable operation and security. Designed for creating resilient and secure OpenSearch clusters in a cloud-native environment.

Documentation

• Architecture guide.
• Installation guide.
• Monitoring guide
• Troubleshooting guide.
• Internal Developer Guide.
• Guides.
• Quick Start.

Repository structure

• ./charts - directory with main HELM chart for OpenSearch and integration tests.
• ./config - directory with YAML resources for operator framework.
• ./controllers - directory with operator's Golang source code which implements controller functionality.
• ./dev-kit - directory with scripts for working with Golang Operator Framework.
• ./disasterrecovery - directory with operator's Golang source code which implements disaster recovery functionality.
• ./docs - directory with actual documentation for OpenSearch service component.
• ./integration-tests - directory with Robot Framework test cases for OpenSearch.
• ./tls-init - directory with source code, Dockerfile and CI/CD config files for tls-init job.
• ./utils - directory with operator's Golang source code which implements common functions.

How to start

Deploy to k8s

Pure helm

1. Build operator and integration tests, if you need non-main versions.
2. Prepare kubeconfig on you host machine to work with target cluster.
3. Prepare sample.yaml file with deployment parameters, which should contains custom docker images if it is needed.
4. Store sample.yaml file in /charts/helm/opensearch-service directory.
5. Go to /charts/helm/opensearch-service directory.
6. Run the following command:

helm install opensearch-service ./ -f sample.yaml -n <TARGET_NAMESPACE>

Smoke tests

There is no smoke tests.

How to debug

VSCode

To debug Operator in VSCode you can use Launch operator configuration which is already defined in .vscode/launch.json file.

The developer should configure environment variables:

• KUBECONFIG - developer should need to define KUBECONFIG environment variable which should contains path to the kube-config file. It can be defined on configuration level or on the level of user's environment variables.
• OPENSEARCH_USERNAME - username for REST API access.
• OPENSEARCH_PASSWORD - password for REST API access.
• OPENSEARCH_HOST - OpenSearch's Ingress.
• OPENSEARCH_NAME, WATCH_NAMESPACE.

How to troubleshoot

There are no well-defined rules for troubleshooting, as each task is unique, but there are some tips that can do:

• Deploy parameters.
• Application manifest.
• Logs from all OpenSearch service pods: operator, OpenSearch, monitoring and others.

Also, developer can take a look on Troubleshooting guide.

Evergreen strategy

To keep the component up to date, the following activities should be performed regularly:

• Vulnerabilities fixing.
• OpenSearch upgrade.
• Bug-fixing, improvement and feature implementation for operator and other related supplementary services.

Useful links

• OpenSearch Doc Portal
• Internal Developer Guide.