chore(deps): update helm release ollama to v1.40.0

[renovate-bot-cbcoutinho]

This PR contains the following updates:

Package	Update	Change
ollama (source)	minor	1.38.0 → 1.40.0

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Release Notes

otwld/ollama-helm (ollama)

v1.40.0

Compare Source

Get up and running with large language models locally.

What's Changed

• feat: upgrade app version to 0.15.2 by @​jdetroyes in #​212

Full Changelog: otwld/ollama-helm@ollama-1.39.0...ollama-1.40.0

v1.39.0

Compare Source

Get up and running with large language models locally.

What's Changed

• feat: upgrade app version to 0.15.1 by @​MateuszKrawczuk in #​211

New Contributors

• @​MateuszKrawczuk made their first contribution in #​211

Full Changelog: otwld/ollama-helm@ollama-1.38.0...ollama-1.39.0

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Configuration

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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This PR has been generated by Renovate Bot.

[claude]

Pull Request Review - Ollama Helm Chart Update v1.39.0

Summary

This PR updates the Ollama Helm chart dependency from v1.38.0 to v1.39.0. This is a minor version bump that upgrades the underlying Ollama application to v0.15.1.

Code Quality: ✅ APPROVED

Positive aspects:

• Proper dependency management: The update correctly modifies both Chart.yaml (version constraint) and Chart.lock (locked version + digest)
• Automated update: Renovate bot ensures timely dependency updates
• Version alignment: Chart follows semantic versioning appropriately
• Lock file integrity: New digest (sha256:8d521a60...) ensures supply chain security

Changes Analysis

Files modified:

1. charts/nextcloud-mcp-server/Chart.yaml: Ollama version constraint updated to 1.39.0
2. charts/nextcloud-mcp-server/Chart.lock: Lock file regenerated with new version and digest

What changed upstream:

• Ollama application upgraded to v0.15.1 (from the otwld/ollama-helm chart)
• This is a maintenance release with no breaking changes indicated

Potential Considerations

1. Testing ⚠️

• CI checks are currently in progress (integration tests running)
• Recommendation: Verify that existing Ollama-based features work correctly:
  • Semantic search with Ollama embeddings (if using OLLAMA_BASE_URL)
  • RAG evaluation tools
  • Provider auto-detection (Bedrock → Ollama → Simple fallback)

2. Compatibility ✅

• No breaking changes identified in the Ollama chart update
• The conditional deployment pattern (ollama.enabled) remains unchanged
• External Ollama instances (via OLLAMA_BASE_URL) are not affected by this chart update

3. Configuration ✅

• All Ollama-related configuration in values.yaml remains compatible
• Provider architecture (ADR-015) supports this update transparently
• No migration steps required

4. Performance ✅

• Minor version updates typically include performance improvements
• No known performance regressions in v0.15.1

5. Security ✅

• Updated lock file digest ensures supply chain integrity
• Using official chart repository (https://otwld.github.io/ollama-helm)
• SSL verification defaults remain enforced (OLLAMA_VERIFY_SSL: "true")

Test Coverage: ✅

The existing test suite covers Ollama integration:

• tests/integration/test_semantic_search.py - Semantic search with providers
• tests/integration/provider_fixtures.py - Provider initialization
• tests/rag_evaluation/llm_providers.py - RAG with Ollama

Wait for CI completion before merging to ensure integration tests pass.

Recommendation: ✅ APPROVE WITH CI VALIDATION

This is a routine dependency update with minimal risk. The changes are:

• ✅ Properly scoped (dependency version bump only)
• ✅ Following best practices (lock file + version constraints)
• ✅ Backward compatible (no breaking changes)
• ✅ Security-conscious (digest verification)

Action items before merge:

1. ✅ Linting passed
2. ⏳ Wait for integration tests to complete
3. ✅ No manual testing required (unless integration tests fail)

Once CI passes, this PR is safe to merge.

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Review performed by Claude Code based on repository conventions in CLAUDE.md

[claude]

PR Review: Update Ollama Helm Chart to v1.40.0

Summary

This PR updates the Ollama Helm chart dependency from v1.38.0 to v1.40.0, which upgrades the underlying Ollama application from v0.15.0 to v0.15.2. This is a routine dependency update managed by Renovate Bot.

Code Quality ✅

• Changes are minimal and focused: Only updates version numbers in Chart.yaml and Chart.lock
• Follows semantic versioning: Minor version bump (1.38.0 → 1.40.0)
• Lock file properly updated: Digest and timestamp reflect the new dependency

Compatibility Assessment ✅

Ollama Provider Integration (nextcloud_mcp_server/providers/ollama.py):

• Uses stable Ollama HTTP API endpoints:
  • /api/embeddings - Single embedding generation
  • /api/embed - Batch embedding generation
  • /api/generate - Text generation
  • /api/tags - Model listing
  • /api/pull - Model downloading
• No API changes detected in the Ollama releases between v0.15.0 and v0.15.2
• The provider implementation uses standard HTTP patterns without version-specific dependencies

Version Upgrade Path:

• v1.38.0 (Ollama 0.15.0) → v1.39.0 (Ollama 0.15.1) → v1.40.0 (Ollama 0.15.2)
• These are patch-level Ollama updates, maintaining backward compatibility

Test Coverage ✅

• CI checks running: Linting passed, integration tests in progress
• Integration tests exist for Ollama provider (tests/integration/test_rag.py)
• Provider-agnostic architecture: The unified provider system (ADR-015) isolates Ollama-specific logic

Potential Issues 🔍

None identified, but recommend monitoring:

1. Embedding quality: Ollama v0.15.x series may include embedding model improvements
2. Batch processing: The provider uses batch size of 32 (conservative, per Ollama issue #6262)
3. Auto-loading models: The provider auto-pulls models on initialization if missing

Security Considerations ✅

• Dependency source: Official Ollama Helm chart from otwld/ollama-helm
• No security advisories found for this version range
• SSL verification: Provider supports SSL verification (default: enabled)

Performance Considerations ✅

• Resource limits unchanged: Chart values maintain existing CPU/memory limits
• Model caching: Persistent volume configuration unchanged (20Gi default)
• Timeout configuration: Provider uses conservative 120s timeout for operations

Recommendations

✅ Approve and merge - This is a safe, routine dependency update with:

• No breaking changes to the Ollama API
• Proper version constraints maintained
• CI validation in progress
• Well-isolated provider architecture minimizes risk

Post-merge validation:

1. Monitor integration tests for any embedding quality regressions
2. Verify model auto-loading behavior if using the subchart deployment
3. Check for any Ollama server logs if deployed in production

References

• Ollama Helm Chart: https://github.com/otwld/ollama-helm
• Provider Architecture: docs/ADR-015-unified-provider-architecture.md
• Provider Implementation: nextcloud_mcp_server/providers/ollama.py:1
• Integration Tests: tests/integration/test_rag.py:1