fix(base-cluster/monitoring): increase limit of grafana sidecar

[marvinWolff]

Summary by CodeRabbit

• Chores
  • Set memory resource limit (256Mi) for monitoring sidecar to improve resource management and system stability.

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[gemini-code-assist]

Summary of Changes

Hello @marvinWolff, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a potential resource constraint for the Grafana sidecar by explicitly setting a memory limit within the base-cluster monitoring configuration. This change aims to improve the stability and reliability of the monitoring component by ensuring it has adequate resources.

Highlights

• Grafana Sidecar Memory Limit: Increased the memory limit for the Grafana sidecar within the base-cluster monitoring configuration to "256Mi" to ensure stable operation.

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[coderabbitai]

Walkthrough

A memory limit of 256Mi was added to the monitoring sidecar resource configuration in the base cluster values file. This is a configuration-only update that establishes resource constraints for the monitoring sidecar container without modifying any other settings.

Changes

Cohort / File(s)	Summary
Monitoring Sidecar Resource Configuration charts/base-cluster/values.yaml	Added memory limit of 256Mi to monitoring.sidecar.resources; previously the resources object was empty.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Single configuration field update with no logic changes
• No cross-file dependencies or side effects to verify
• Standard Kubernetes resource configuration pattern

Suggested reviewers

• tasches
• teutonet-bot

Poem

🐰 A sidecar so lean, now constrained to a dream,
Two-fifty-six megabytes, a memory stream,
No more shall it wander unbounded and free,
A resource-aware hop, as it ought to be! ✨

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 clearly describes the main change: increasing a memory limit for the Grafana sidecar monitoring component, which aligns with the changeset that adds a 256Mi memory limit.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/base-cluster/set_grafana_sidecar_limit

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[gemini-code-assist]

Code Review

This pull request increases the memory limit for the Grafana sidecar to 256Mi, likely to address out-of-memory issues. The change is straightforward. I have added one suggestion to also explicitly define a memory request for improved clarity and consistency with the project's configuration standards.

[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

charts/base-cluster/values.yaml (1)

245-249: Consider adding CPU limits alongside memory for consistency.

The change adds a memory limit to the grafana sidecar, which addresses the stated objective. However, reviewing similar configurations in this file (e.g., oauthProxy at lines 214–220, nodeExporter at lines 293–300), components with explicit resource limits typically define both memory and CPU constraints. The sidecar is now memory-constrained but lacks CPU constraints, which could be inconsistent with the resource management patterns established elsewhere.

Verify whether:

1. The 256Mi memory limit is adequate for the grafana sidecar workload
2. CPU limits or requests should be added for resource consistency and to prevent unbounded CPU consumption

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between f345cea and d81435f.

📒 Files selected for processing (1)

• charts/base-cluster/values.yaml (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)

• GitHub Check: lint helm chart (base-cluster)
• GitHub Check: check licenses