helm: update AWS MCP addon for native Streamable HTTP (2.1.0)

[moshemorad]

Summary

The built-in AWS MCP addon images (robusta-dev/holmes-mcp-integrations#30, merged) were migrated off supergateway/SSE to run awslabs.aws-api-mcp-server's native MCP Streamable HTTP transport, released as tag 2.1.0. The native server serves only at /mcp. The chart still pointed at the old 2.0.1 image and generated an MCP URL with no /mcp path and no transport mode, so Holmes' streamable-http client hit :8000 root and got 404/406 — it couldn't connect.

Changes

• helm/holmes/templates/toolset-config.yaml — in the aws_api MCP server config, append /mcp to the url and add "mode" "streamable-http".
• helm/holmes/values.yaml — bump both image tags under mcpAddons.aws: aws-api-mcp-server and multiAccount.image (multi-aws-api-mcp-server) from 2.0.1 → 2.1.0.

The tcpSocket health probes, ServiceAccount/IRSA, and READ_OPERATIONS_ONLY (read-only mode) env are left unchanged.

Verification

$ helm template r ./helm/holmes --set mcpAddons.aws.enabled=true | grep -A5 aws_api
      aws_api:
        config:
          icon_url: https://raw.githubusercontent.com/gilbarbara/logos/.../aws.svg
          mode: streamable-http
          url: http://r-aws-mcp-server.default.svc.cluster.local:8000/mcp
        description: AWS API MCP Server - comprehensive AWS service access...

Rendered URL ends in /mcp, mode: streamable-http is present, and the rendered image tag is aws-api-mcp-server:2.1.0.

🤖 Generated with Claude Code

https://claude.ai/code/session_01P2aD44gnGDWY68YNzpCkuq

---

Generated by Claude Code

Summary by CodeRabbit

• Chores
  • Upgraded AWS MCP container images to version 2.1.0 for enhanced reliability
  • Updated AWS MCP server configuration to use optimized HTTP streaming mode

[netlify]

✅ Deploy Preview for holmes-docs ready!

Name	Link
🔨 Latest commit	e18ab9a
🔍 Latest deploy log	https://app.netlify.com/projects/holmes-docs/deploys/6a3bcb51fa707c0008edf3a8
😎 Deploy Preview	https://deploy-preview-2222--holmes-docs.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 2a063588-6739-40d8-8fbc-8b8a06e8ad3d

📥 Commits

Reviewing files that changed from the base of the PR and between b046938 and f96a3a0.

📒 Files selected for processing (2)

• helm/holmes/templates/toolset-config.yaml
• helm/holmes/values.yaml

---

Walkthrough

The AWS MCP addon toolset configuration in the Helm chart is updated to append /mcp to the server URL and set mode: streamable-http. Both aws-api-mcp-server and multi-aws-api-mcp-server container image tags are bumped from 2.0.1 to 2.1.0.

Changes

AWS MCP Server Update

Layer / File(s)	Summary
AWS MCP endpoint, transport mode, and image bumps helm/holmes/templates/toolset-config.yaml, helm/holmes/values.yaml	Server url is updated to include the /mcp path and mode is set to streamable-http; both aws-api-mcp-server and multi-aws-api-mcp-server image tags are bumped from 2.0.1 to 2.1.0.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• HolmesGPT/holmesgpt#1318: Adds Azure MCP using the same /mcp + streamable-http pattern and refactors the AWS MCP block to include url/mode fields — directly related to the same config structure being modified here.
• HolmesGPT/holmesgpt#1541: Also bumps aws-api-mcp-server image versions in helm/holmes/values.yaml, overlapping with the same Helm values image declarations.
• HolmesGPT/holmesgpt#1335: Modifies the same AWS MCP server config in helm/holmes/templates/toolset-config.yaml, specifically removing the streamable-http mode — the inverse of what this PR does.

Suggested reviewers

• RoiGlinik
• Avi-Robusta

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: updating the AWS MCP addon Helm configuration to support native Streamable HTTP transport in version 2.1.0, which directly matches the changes made to the toolset config URL/mode and image tag updates.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

✅ Docker images ready for e8a762e29 (built in 6m 29s)

• us-central1-docker.pkg.dev/robusta-development/temporary-builds/holmes:e8a762e29
• us-central1-docker.pkg.dev/robusta-development/temporary-builds/holmes-operator:e8a762e29

⚠️ Warning: does not support ARM (ARM images are built on release only - not on every PR)

Use these tags to pull the images for testing.

📋 Copy commands

⚠️ Temporary images are deleted after 30 days. Copy to a permanent registry before using them:

gcloud auth configure-docker us-central1-docker.pkg.dev
docker pull us-central1-docker.pkg.dev/robusta-development/temporary-builds/holmes:e8a762e29
docker tag us-central1-docker.pkg.dev/robusta-development/temporary-builds/holmes:e8a762e29 me-west1-docker.pkg.dev/robusta-development/development/holmes-dev:e8a762e29
docker push me-west1-docker.pkg.dev/robusta-development/development/holmes-dev:e8a762e29
docker pull us-central1-docker.pkg.dev/robusta-development/temporary-builds/holmes-operator:e8a762e29
docker tag us-central1-docker.pkg.dev/robusta-development/temporary-builds/holmes-operator:e8a762e29 me-west1-docker.pkg.dev/robusta-development/development/holmes-operator-dev:e8a762e29
docker push me-west1-docker.pkg.dev/robusta-development/development/holmes-operator-dev:e8a762e29

Patch Helm values in one line (choose the chart you use):

HolmesGPT chart:

helm upgrade --install holmesgpt ./helm/holmes \
  --set registry=me-west1-docker.pkg.dev/robusta-development/development \
  --set image=holmes-dev:e8a762e29 \
  --set operator.registry=me-west1-docker.pkg.dev/robusta-development/development \
  --set operator.image=holmes-operator-dev:e8a762e29

Robusta wrapper chart:

helm upgrade --install robusta robusta/robusta \
  --reuse-values \
  --set holmes.registry=me-west1-docker.pkg.dev/robusta-development/development \
  --set holmes.image=holmes-dev:e8a762e29 \
  --set holmes.operator.registry=me-west1-docker.pkg.dev/robusta-development/development \
  --set holmes.operator.image=holmes-operator-dev:e8a762e29