[DT-2471] Upgrade to OpenSearch 3

[fboulnois]

Addresses

https://broadworkbench.atlassian.net/browse/DT-2471

Summary

Upgrades from ElasticSearch 5 to OpenSearch 3. Here's what is needed in the docker-compose.yaml:

  elastic:
    image: opensearchproject/opensearch:3
    ports:
      - "9200:9200"
    container_name: elastic
    volumes:
      - ./data:/usr/share/opensearch/data
    environment:
      - DISABLE_SECURITY_PLUGIN=true
      - discovery.type=single-node
      - cluster.routing.allocation.disk.threshold_enabled=false

---

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• Label PR with a Jira ticket number and include a link to the ticket
• Label PR with a security risk modifier [no, low, medium, high]
• PR describes scope of changes
• Get a minimum of one thumbs worth of review, preferably two if enough team members are available
• Get PO sign-off for all non-trivial UI or workflow changes
• Verify all tests go green
• Test this change deployed correctly and works on dev environment after deployment

[fboulnois]

The /_validate/query endpoint can only validate the query part, but if you have aggregations this marks the query as invalid, hence for the v2 endpoint only the result window size is checked.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
77.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[otchet-broad]

@fboulnois - Had you given any more thought to how we might migrate to this and have both running at the same time?

What's in this PR looks great for the cutover, but it necessitates an all-in migration where both the FE and BE need to convert simultaneously. I wasn't sure where that topic landed.

[eweitz]

Nice consistency in the port!