Add opensearch service to CI

[dagardner-nv]

Description

• Enables running the examples/frameworks/haystack_deep_research_agent/tests/test_haystack_deep_research_agent.py integration test.

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Summary by CodeRabbit

• Chores
  • Updated CI pipeline to provision an OpenSearch service container (opensearchproject/opensearch:2.11.1) with single-node mode and security disabled for CI execution.
  • Added a CI environment variable for the OpenSearch endpoint (http://opensearch:9200).
  • These changes standardize the CI environment and improve consistency of pipeline runs involving search-related operations.

[coderabbitai]

Walkthrough

Added an OpenSearch service container to the GitLab CI configuration and defined a CI variable for its URL.

Changes

Cohort / File(s)	Summary
CI configuration \.gitlab-ci.yml	Added CI variable NAT_CI_OPENSEARCH_URL=http://opensearch:9200. Introduced OpenSearch service opensearchproject/opensearch:2.11.1 with alias opensearch and environment variables discovery.type=single-node, plugins.security.disabled=true.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title “Add opensearch service to CI” is concise, uses the imperative mood, and accurately summarizes the main change of introducing an OpenSearch service into the CI pipeline for integration testing. It clearly reflects the pull request’s intent and stays well within the 72-character limit.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

.gitlab-ci.yml (1)

98-102: Harden OpenSearch service: heap cap, readiness, and robust config delivery.

• Add OPENSEARCH_JAVA_OPTS to reduce CI memory pressure.
• Consider passing settings via command -E to avoid dotted env var quirks on some runners.
• Ensure tests wait for OpenSearch readiness to prevent flakes.

Suggested minimal change (heap cap):

     - name: opensearchproject/opensearch:2.11.1
       alias: opensearch
       variables:
         discovery.type: "single-node"
         plugins.security.disabled: "true"
+        OPENSEARCH_JAVA_OPTS: "-Xms512m -Xmx512m"

Alternative (more robust) config via command:

-    - name: opensearchproject/opensearch:2.11.1
-      alias: opensearch
-      variables:
-        discovery.type: "single-node"
-        plugins.security.disabled: "true"
+    - name: opensearchproject/opensearch:2.11.1
+      alias: opensearch
+      command: ["opensearch", "-E", "discovery.type=single-node", "-E", "plugins.security.disabled=true"]
+      variables:
+        OPENSEARCH_JAVA_OPTS: "-Xms512m -Xmx512m"

Also verify the runner host doesn’t block OpenSearch on vm.max_map_count; if it does, we may need to retry with a lighter search backend for CI or use a runner with that sysctl set.

📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 7f1872e and 868de88.

📒 Files selected for processing (1)

• .gitlab-ci.yml (2 hunks)

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• GitHub Check: CI Pipeline / Check

🔇 Additional comments (1)

.gitlab-ci.yml (1)

45-45: Good addition; confirm consumers.

NAT_CI_OPENSEARCH_URL looks correct for intra-job networking. Please confirm tests/examples actually read this variable (or default to the same URL) to avoid flakiness.

[dagardner-nv]

/merge