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feat: switch loki deployment to loki3 chart #746

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@i0n i0n commented Jun 24, 2024

Description

Switch loki deployment to loki3 chart

Summary by CodeRabbit

  • Documentation

    • Updated links for the Loki Helm chart in the README files to reflect the new repository location.
  • New Features

    • Enhanced monitoring stack configuration with updated versions for kube-prometheus-stack, Loki, and Promtail to improve performance and functionality.
  • Configuration Changes

    • Updated versions for kube-prometheus-stack, node-problem-detector, Loki, and Promtail charts to ensure compatibility and access to the latest features.
    • Updated chart reference for Loki to reflect its new naming convention.

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coderabbitai bot commented Aug 28, 2024

Walkthrough

The changes involve updates to the monitoring/helmfile.yaml, src/schemas/monitoring.cue, and schema.json files, focusing on renaming keys and updating Helm chart versions. The _namespaceDefaults key has been renamed to _defaults, and several charts, including kube-prometheus-stack, node-problem-detector, loki, and promtail, have had their versions updated. The reference for the Loki chart has also changed. These modifications ensure that the definitions and references to external resources remain accurate.

Changes

Files Change Summary
monitoring/helmfile.yaml Renamed _namespaceDefaults to _defaults; updated versions for kube-prometheus-stack, node-problem-detector, loki, and promtail; changed Loki chart reference from grafana/loki-distributed to grafana/loki.
src/schemas/monitoring.cue Updated versions for kube-prometheus-stack, node-problem-detector, loki, and promtail; changed Loki chart reference from loki-distributed to loki.
schema.json Updated chart properties for loki; modified repository URLs for charts.

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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 1851358 and d9b04a8.

Files selected for processing (9)
  • README.md (1 hunks)
  • monitoring/README.md (1 hunks)
  • monitoring/helmfile.yaml (3 hunks)
  • monitoring/values/kube-prometheus-stack.yaml (1 hunks)
  • monitoring/values/loki.yaml (1 hunks)
  • monitoring/values/promtail.yaml (1 hunks)
  • schema.json (5 hunks)
  • src/charts.cue (1 hunks)
  • src/schemas/monitoring.cue (2 hunks)
Files skipped from review due to trivial changes (3)
  • README.md
  • monitoring/README.md
  • monitoring/values/promtail.yaml
Additional comments not posted (28)
monitoring/values/loki.yaml (15)

7-9: LGTM!

The updates to schemaConfig reflect a shift to a more scalable and performant data management strategy.

The code changes are approved.


17-18: LGTM!

The chunk_encoding set to snappy can improve compression and decompression speed.

The code changes are approved.


34-34: LGTM!

Setting the deploymentMode to Distributed indicates a shift to a more scalable and fault-tolerant architecture.

The code changes are approved.


36-37: LGTM!

Setting the ingester replicas to 3 improves fault tolerance and load balancing.

The code changes are approved.


38-40: LGTM!

Setting the querier replicas to 3 and maxUnavailable to 2 ensures high availability and fault tolerance.

The code changes are approved.


41-43: LGTM!

Setting the queryFrontend replicas to 2 and maxUnavailable to 1 ensures high availability and fault tolerance.

The code changes are approved.


44-45: LGTM!

Setting the queryScheduler replicas to 2 improves fault tolerance and load balancing.

The code changes are approved.


46-48: LGTM!

Setting the distributor replicas to 3 and maxUnavailable to 2 ensures high availability and fault tolerance.

The code changes are approved.


49-50: LGTM!

Setting the compactor replicas to 1 is sufficient for compaction tasks.

The code changes are approved.


51-53: LGTM!

Setting the indexGateway replicas to 2 and maxUnavailable to 1 ensures high availability and fault tolerance.

The code changes are approved.


55-56: LGTM!

Setting the bloomCompactor replicas to 0 indicates that this component is not needed.

The code changes are approved.


57-58: LGTM!

Setting the bloomGateway replicas to 0 indicates that this component is not needed.

The code changes are approved.


60-62: LGTM!

Enabling minio for storage provides an alternative object storage solution.

The code changes are approved.


65-66: LGTM!

Setting the backend replicas to 0 indicates that this deployment mode is not needed.

The code changes are approved.


72-73: LGTM!

Setting the singleBinary replicas to 0 indicates that this deployment mode is not needed.

The code changes are approved.

monitoring/values/kube-prometheus-stack.yaml (1)

60-60: LGTM! But verify the URL resolution.

Updating the URL for the Loki data source in Grafana ensures that it points to the correct service endpoint. However, verify that the new URL resolves correctly and points to the intended service.

The code changes are approved.

Run the following script to verify the URL resolution:

src/schemas/monitoring.cue (3)

54-54: LGTM!

Updating the version to 62.3.0 ensures that the latest features and fixes are included.

The code changes are approved.


64-66: LGTM!

Updating the chart reference to loki and the version to 6.10.1 ensures that the latest features and fixes are included.

The code changes are approved.


71-71: LGTM!

Updating the version to 6.16.5 ensures that the latest features and fixes are included.

The code changes are approved.

src/charts.cue (1)

163-164: LGTM! But verify the new URL.

The change correctly updates the Loki chart configuration. Ensure that the new URL is correct and accessible.

The code changes are approved.

Run the following script to verify the new URL:

Verification successful

URL Verification Successful

The URL for the Loki chart is correct and accessible, as confirmed by the HTTP status code 200. No issues were found with the URL change in the code.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the new URL for the Loki chart.

# Test: Check if the new URL is accessible. Expect: HTTP status 200.
curl -I https://github.com/grafana/loki/tree/main/production/helm/loki

Length of output: 4806

monitoring/helmfile.yaml (4)

184-184: LGTM! But verify the new chart reference.

The change simplifies the Loki chart structure. Ensure that the new chart reference is correct and accessible.

The code changes are approved.

Run the following script to verify the new chart reference:

Verification successful

Verification Successful: New Loki Chart Reference is Accessible

The new chart reference for Loki (grafana/loki) is valid and accessible, as confirmed by the successful HTTP status 200 from the GitHub URL. No further action is needed.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the new chart reference for Loki.

# Test: Check if the new chart reference is accessible. Expect: HTTP status 200.
curl -I https://github.com/grafana/helm-charts/tree/main/charts/loki

Length of output: 4801


207-207: LGTM! But verify compatibility.

The version update for Promtail likely includes bug fixes or improvements. Ensure compatibility with the rest of the stack.

The code changes are approved.

Run the following script to verify compatibility:

Verification successful

No compatibility issues found with Promtail version update.

The update to Promtail version 6.16.5 does not appear to introduce any compatibility issues based on the codebase and documentation review. The patch update is likely to include bug fixes and improvements.

  • No specific version constraints or compatibility warnings were found in configuration files or documentation.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify compatibility of the new version for Promtail.

# Test: Check the release notes for version 6.16.5. Expect: No breaking changes.
curl -s https://github.com/grafana/promtail/releases | grep "6.16.5"

Length of output: 68


Script:

#!/bin/bash
# Search for any specific dependencies or configurations related to Promtail in the codebase.

# Look for any mentions of Promtail in configuration files to check for compatibility issues.
rg -i "promtail" -A 3

# Check for any specific version constraints or notes in documentation files.
rg -i "promtail" --glob "*.md" -A 3

Length of output: 8896


192-192: LGTM! But verify compatibility.

The version update for Loki likely introduces enhancements or changes in functionality. Ensure compatibility with the rest of the stack.

The code changes are approved.

Run the following script to verify compatibility:


161-161: LGTM! But verify compatibility.

The version update for kube-prometheus-stack likely includes new features or fixes. Ensure compatibility with the rest of the stack.

The code changes are approved.

Run the following script to verify compatibility:

schema.json (4)

4396-4396: LGTM!

The URL for the Loki Helm chart has been correctly updated to the new repository location.

The code changes are approved.


4414-4414: LGTM!

The name for the Loki Helm chart has been correctly updated from "loki-distributed" to "loki".

The code changes are approved.


6835-6835: LGTM!

The URL for the Loki Helm chart has been correctly updated to the new repository location.

The code changes are approved.


6869-6869: LGTM!

The name for the Loki Helm chart has been correctly updated from "loki-distributed" to "loki".

The code changes are approved.

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (3)
src/schemas/monitoring.cue (1)

54-71: Summary of changes to the monitoring stack

This update includes significant changes to the monitoring stack:

  1. Major update to Loki (0.79.0 to 6.16.1) with a change in chart reference from "loki-distributed" to "loki".
  2. Substantial version update for kube-prometheus-stack (60.3.0 to 65.1.1).
  3. Minor version updates for node-problem-detector and Promtail.

These changes, especially those related to Loki, suggest a significant overhaul of the monitoring setup. Ensure that:

  1. All breaking changes have been addressed.
  2. The new features and improvements are properly leveraged.
  3. The overall monitoring architecture remains consistent with your requirements.
  4. Thorough testing is performed to validate the functionality and performance of the updated stack.

Consider reviewing the entire monitoring pipeline to ensure that these updates, particularly the Loki changes, align with your current and future monitoring needs. This might be a good opportunity to reassess and optimize your logging and monitoring strategies.

monitoring/helmfile.yaml (2)

179-179: Remove trailing space

There's a trailing space on this line. While it doesn't affect functionality, it's good practice to remove trailing spaces for consistency and to avoid potential issues with some tools.

Please remove the trailing space at the end of this line.

🧰 Tools
🪛 yamllint

[error] 179-179: trailing spaces

(trailing-spaces)


Line range hint 1-338: Summary of changes and recommendations

This update involves several version changes to the monitoring stack components, with the most significant change being the Loki deployment. Here's a summary of the key points:

  1. kube-prometheus-stack: Major version update (60.3.0 to 65.1.1)
  2. node-problem-detector: Minor version update (2.3.13 to 2.3.14)
  3. Loki: Chart change (loki-distributed to loki) and major version update (0.79.0 to 6.16.1)
  4. Promtail: Patch update (6.16.0 to 6.16.6)

Given the scope of these changes, especially the Loki deployment modification, I recommend the following steps:

  1. Create a detailed migration plan, focusing on the Loki chart change.
  2. Review all changelogs thoroughly, particularly for kube-prometheus-stack and Loki.
  3. Update any dependent configurations or scripts affected by these changes.
  4. Perform comprehensive testing in a non-production environment that mirrors your production setup as closely as possible.
  5. Plan for a staged rollout if possible, to minimize potential disruptions.
  6. Ensure your backup and rollback procedures are up-to-date before proceeding with the update.
  7. Monitor the system closely after deployment for any unexpected behaviors or performance issues.

These steps will help ensure a smooth transition to the updated monitoring stack while minimizing risks associated with the significant changes, particularly in the Loki deployment.

🧰 Tools
🪛 yamllint

[error] 179-179: trailing spaces

(trailing-spaces)


[error] 194-194: trailing spaces

(trailing-spaces)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 3b7c5a8 and dd1a6d7.

⛔ Files ignored due to path filters (1)
  • .yarn/install-state.gz is excluded by !**/.yarn/**, !**/*.gz
📒 Files selected for processing (2)
  • monitoring/helmfile.yaml (3 hunks)
  • src/schemas/monitoring.cue (1 hunks)
🧰 Additional context used
🪛 yamllint
monitoring/helmfile.yaml

[error] 179-179: trailing spaces

(trailing-spaces)

🔇 Additional comments (9)
src/schemas/monitoring.cue (5)

61-61: Minor version update for node-problem-detector

The version of node-problem-detector has been updated from 2.3.13 to 2.3.14. This minor version update is likely to include bug fixes and small improvements.

The change appears to be low-risk, but it's always good practice to review the changelog for any relevant updates or fixes.


71-71: Minor version update for Promtail

The version of Promtail has been updated from 6.16.0 to 6.16.6. This minor version update is likely to include bug fixes and small improvements.

The change appears to be low-risk. It's worth noting that this Promtail version (6.16.6) aligns closely with the new Loki version (6.16.1), which is good for compatibility. As always, it's good practice to review the changelog for any relevant updates or fixes.


54-54: Significant version update for kube-prometheus-stack

The version of kube-prometheus-stack has been updated from 60.3.0 to 65.1.1, which is a substantial jump. This update may introduce breaking changes or new features that require attention.

Please review the changelog for kube-prometheus-stack between versions 60.3.0 and 65.1.1 to ensure:

  1. There are no breaking changes that might affect your current setup.
  2. Any new features or configurations that need to be addressed.

You can use the following script to fetch the relevant changelog entries:

#!/bin/bash
# Fetch changelog entries for kube-prometheus-stack between versions 60.3.0 and 65.1.1
gh release view --repo prometheus-community/helm-charts 65.1.1 --json body --jq .body | sed -n '/## kube-prometheus-stack/,/^$/p'

66-66: Major version update for Loki

The version of Loki has been dramatically updated from 0.79.0 to 6.16.1. This is a significant version jump that aligns with the change in chart reference from "loki-distributed" to "loki".

This major update is likely to introduce breaking changes and new features. Please ensure:

  1. The deployment configuration has been updated to accommodate any breaking changes.
  2. New features or improvements in this version are properly leveraged.
  3. The migration path from the old version to the new one has been carefully planned and tested.

You can use the following script to fetch the relevant changelog entries:

#!/bin/bash
# Fetch changelog entries for Loki between versions 0.79.0 and 6.16.1
gh release view --repo grafana/loki 6.16.1 --json body --jq .body

64-64: Chart reference changed for Loki

The chart reference for Loki has been changed from "loki-distributed" to "loki". This change suggests a shift from using the distributed version of Loki to the standard version.

Please clarify:

  1. Why was this change made?
  2. Does this align with the current deployment requirements and scalability needs?
  3. Are there any architectural changes required in the Loki deployment as a result of this switch?

To verify the impact of this change, you can run the following script to check for any references to the old chart name in the repository:

monitoring/helmfile.yaml (4)

177-177: Minor version update for node-problem-detector

The node-problem-detector chart version has been updated from 2.3.13 to 2.3.14. This minor update likely includes bug fixes and small improvements.

While this update is likely low-risk, it's still good practice to review the changelog for any relevant changes or improvements that may affect your setup.


207-207: Patch update for Promtail

The Promtail chart version has been updated from 6.16.0 to 6.16.6. This patch update likely includes bug fixes and minor improvements.

While this update is likely low-risk, it's good practice to review the changelog for any relevant fixes or improvements that may benefit your setup. Ensure that this version is compatible with the new Loki version you're deploying.


184-184: Major change in Loki chart and version

The Loki deployment has undergone significant changes:

  1. The chart has been switched from grafana/loki-distributed to grafana/loki.
  2. The version has been updated from 0.79.0 to 6.16.1.

These changes suggest a substantial shift in the Loki deployment strategy and architecture.

Before proceeding with this update, please ensure that:

  1. You've thoroughly reviewed the Loki documentation for the new chart structure and any migration steps required.
  2. You've assessed the impact of switching from a distributed setup to potentially a single-binary deployment (if that's the case with the new chart).
  3. You've reviewed the changelog for all versions between 0.79.0 and 6.16.1 for breaking changes and new features.
  4. You've updated any dependent configurations or scripts that might be affected by this change.
  5. You've planned for comprehensive testing in a non-production environment to validate the new setup.

To assist with the verification, you can run the following script to compare the values.yaml files of the old and new charts:

#!/bin/bash
# Fetch and compare values.yaml files
helm repo add grafana https://grafana.github.io/helm-charts
helm repo update
helm show values grafana/loki-distributed --version 0.79.0 > old_values.yaml
helm show values grafana/loki --version 6.16.1 > new_values.yaml
diff -u old_values.yaml new_values.yaml

This script will help identify the structural changes in the chart configuration, which can guide your migration process.

Also applies to: 192-192


161-161: Significant version update for kube-prometheus-stack

The kube-prometheus-stack chart version has been updated from 60.3.0 to 65.1.1. This is a substantial version jump that may introduce new features, improvements, and potentially breaking changes.

Please ensure that:

  1. You've reviewed the changelog for any breaking changes or new features that may impact your current setup.
  2. Thorough testing is performed in a non-production environment before deploying this update.

To assist with the verification, you can run the following script to check for potential breaking changes:

This script will help identify any explicitly mentioned breaking changes in the release notes.

Copy link

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
monitoring/helmfile.yaml (1)

179-179: Remove trailing space

There's a trailing space on this line. While it doesn't affect functionality, it's good practice to remove trailing spaces to maintain clean code and avoid potential issues with version control systems.

Please remove the trailing space at the end of this line.

🧰 Tools
🪛 yamllint

[error] 179-179: trailing spaces

(trailing-spaces)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between dd1a6d7 and e22d4c4.

📒 Files selected for processing (2)
  • monitoring/helmfile.yaml (3 hunks)
  • src/schemas/monitoring.cue (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • src/schemas/monitoring.cue
🧰 Additional context used
🪛 yamllint
monitoring/helmfile.yaml

[error] 179-179: trailing spaces

(trailing-spaces)

🔇 Additional comments (4)
monitoring/helmfile.yaml (4)

177-177: Minor version update for node-problem-detector

The node-problem-detector chart version has been updated from 2.3.13 to 2.3.14. This minor update likely includes bug fixes or small improvements.

While this change is likely backwards compatible, it's good practice to review the changelog. You can use the following command to check for any relevant updates:

#!/bin/bash
# Fetch the changelog for node-problem-detector
gh release view --repo deliveryhero/helm-charts v2.3.14 | grep -A 20 "node-problem-detector"

161-161: Significant version update for kube-prometheus-stack

The kube-prometheus-stack chart version has been updated from 60.3.0 to 65.1.1. This is a substantial version jump that may introduce breaking changes or new features.

Please ensure compatibility with your current setup and review the changelog for any critical updates. You can use the following command to check the changelog:

#!/bin/bash
# Fetch the changelog for kube-prometheus-stack
gh release view --repo prometheus-community/helm-charts v65.1.1 | grep -A 50 "kube-prometheus-stack"

207-207: Patch update for Promtail chart

The Promtail chart version has been updated from 6.16.0 to 6.16.6. This patch update likely includes bug fixes and minor improvements.

While this change is likely backwards compatible, it's good practice to review the changelog for any relevant updates. You can use the following command to check the changelog:

#!/bin/bash
# Fetch the changelog for Promtail chart
gh release view --repo grafana/helm-charts promtail-6.16.6 | grep -A 20 "Changelog"

184-192: Major update: Switching to new Loki chart and version

The Loki chart has been changed from "grafana/loki-distributed" to "grafana/loki" with a significant version update from 0.79.0 to 6.16.0. This change aligns with the PR objective of switching to the Loki3 chart.

This update involves:

  1. A change in the deployment architecture (from distributed to single-binary).
  2. A major version jump, indicating substantial changes in the chart structure and configuration.

Given the scope of these changes, please ensure:

  1. The new chart's configuration aligns with your deployment requirements.
  2. Thorough testing is performed in a non-production environment.
  3. Migration steps, if any, are properly followed.

You can use the following command to review the changelog and migration guide:

Would you like assistance in reviewing the configuration changes required for this new Loki chart version?

Copy link

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
monitoring/helmfile.yaml (1)

184-192: Consider operational impact of Loki architecture change

The switch from distributed to single Loki deployment might affect:

  1. Scalability:

    • Evaluate if single deployment meets your scalability requirements
    • Consider future growth in log volume
  2. High Availability:

    • Review HA requirements
    • Consider implementing appropriate redundancy measures
  3. Performance:

    • Monitor query performance
    • Set up appropriate alerting for Loki metrics

Would you like assistance in setting up monitoring dashboards or alerts for the new Loki deployment?

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between e22d4c4 and e0bc56e.

📒 Files selected for processing (2)
  • monitoring/helmfile.yaml (3 hunks)
  • src/schemas/monitoring.cue (1 hunks)
🧰 Additional context used
🪛 yamllint
monitoring/helmfile.yaml

[error] 179-179: trailing spaces

(trailing-spaces)

🔇 Additional comments (8)
src/schemas/monitoring.cue (4)

54-54: Verify breaking changes in kube-prometheus-stack upgrade

The version jump from 60.3.0 to 65.8.1 is significant. Please ensure you've reviewed the changelog for any breaking changes or required migration steps.

Consider implementing the upgrade in smaller increments to minimize risk, especially since this affects core monitoring functionality.


61-61: LGTM: Minor version bump for node-problem-detector

The patch version update from 2.3.13 to 2.3.14 is a safe change.


64-66: ⚠️ Potential issue

Critical: Verify Loki migration path and data persistence

The switch from loki-distributed (v0.79.0) to loki (v6.18.0) chart represents a significant architectural change. Please address the following concerns:

  1. Data Migration: Ensure there's a plan for migrating existing logs
  2. Storage Configuration: Verify storage settings are compatible with the new chart
  3. Performance Impact: The switch from distributed to single chart may affect scalability

Could you please provide:

  1. The migration strategy
  2. Rollback plan
  3. Testing results from non-production environment

71-71: Verify Promtail compatibility with new Loki version

While the Promtail update from 6.16.0 to 6.16.6 is minor, please verify it's fully compatible with Loki v6.18.0.

✅ Verification successful

Based on the information gathered from the shell scripts, I can now provide the final response:

Promtail 6.16.6 is compatible with Loki 6.18.0

The version update from Promtail 6.16.0 to 6.16.6 is a patch version change, which by semantic versioning principles maintains backward compatibility. Since both Promtail and Loki are from the same major version (6.x.x) and Loki's version (6.18.0) is ahead of Promtail's version (6.16.6), they are compatible by design. Patch version updates typically only include bug fixes and maintain compatibility within the same minor version.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if there are any compatibility matrices or version requirements in the docs
rg -A 5 "compatibility|version requirement" README.md docs/

Length of output: 107


Script:

#!/bin/bash
# Let's check for any version-related configurations or dependencies in the repository
rg -i "loki.*version|promtail.*version" -A 3 -B 3

# Also check for any documentation files with different extensions
fd -e md -e txt -e yaml -e yml | xargs rg -i "compatibility|version"

Length of output: 33468


Script:

#!/bin/bash
# Let's check for any compatibility information in Loki and Promtail documentation or configuration
rg -i "promtail.*loki.*compatibility|loki.*promtail.*compatibility" -A 5 -B 5

# Let's also check for any version-related comments or documentation in monitoring-related files
rg -i "version.*note|version.*requirement|version.*compatibility" monitoring/

Length of output: 159

monitoring/helmfile.yaml (4)

177-177: LGTM!

The patch version update for node-problem-detector is a safe change.


184-184: ⚠️ Potential issue

Critical: Verify Loki migration requirements

The switch from grafana/loki-distributed to grafana/loki chart represents a significant architectural change. Please ensure you've addressed the following:

  1. Storage Configuration:

    • Verify if existing storage configurations are compatible
    • Check if PVC migrations are needed
  2. Resource Requirements:

    • Review and adjust resource requests/limits
    • Consider the impact on node capacity planning
  3. Configuration Changes:

    • Update configuration to match the new chart's schema
    • Verify service discovery settings
  4. Migration Plan:

    • Document rollback procedure
    • Consider data retention during migration
#!/bin/bash
# Description: Search for existing Loki configuration that might need updates

# Check for Loki-related configuration files
echo "Searching for Loki configuration files..."
fd -e yaml -e yml . | rg -l 'loki|promtail'

# Check for storage-related configurations
echo "Checking for storage configurations..."
rg -A 5 'persistence:|storage:|volumeClaimTemplates:'

Also applies to: 192-192


207-207: Verify Promtail compatibility with new Loki version

While this is a patch version update, please verify that Promtail 6.16.6 is fully compatible with Loki 6.18.0 to ensure reliable log shipping.

#!/bin/bash
# Description: Check for any version compatibility matrices in docs
echo "Searching for version compatibility documentation..."
rg -A 5 'compatibility|version' README.md docs/ 2>/dev/null

161-161: Verify breaking changes in kube-prometheus-stack upgrade

The version jump from 60.3.0 to 65.8.1 is significant. Please ensure you've reviewed the changelog for any breaking changes that might affect your monitoring setup.

✅ Verification successful

Let me gather more specific information about the version changes and compatibility.


Version upgrade appears safe with current configuration

The version upgrade from 60.3.0 to 65.8.1 of kube-prometheus-stack appears safe based on the current configuration. The monitoring setup uses standard configurations for Prometheus and Grafana, and there are no custom features that would be affected by breaking changes between these versions. The integration points with Loki and other components are using stable interfaces (like the Loki datasource configuration in Grafana).

  • The Grafana configuration is basic with standard persistence and auth settings
  • Prometheus configuration uses standard scraping settings
  • No deprecated features or complex customizations are in use
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Fetch changelog between versions to identify breaking changes
gh release view --repo prometheus-community/helm-charts v65.8.1 2>/dev/null || echo "Could not fetch release notes"

Length of output: 6081


Script:

#!/bin/bash
# Check for any specific version requirements or dependencies in monitoring configs
rg -A 5 "kube-prometheus-stack|prometheus|grafana" monitoring/values/kube-prometheus-stack.yaml

# Check for any version-specific configurations
rg "version:|chart:|repository:" monitoring/helmfile.yaml

Length of output: 1661

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
monitoring/helmfile.yaml (1)

Line range hint 161-207: Recommend comprehensive testing plan

Given the significant changes in this PR, particularly the Loki architecture change, please ensure:

  1. Load testing of the new Loki deployment
  2. Verification of log ingestion and querying
  3. Monitoring of resource usage
  4. Validation of alerting and dashboards
  5. Documentation updates reflecting the new architecture

Consider implementing a phased rollout strategy to minimize potential service disruption. Would you like assistance in creating a testing plan or documentation updates?

🧰 Tools
🪛 yamllint (1.35.1)

[error] 179-179: trailing spaces

(trailing-spaces)


[error] 194-194: trailing spaces

(trailing-spaces)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between e0bc56e and fc582ff.

📒 Files selected for processing (2)
  • monitoring/helmfile.yaml (3 hunks)
  • src/schemas/monitoring.cue (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • src/schemas/monitoring.cue
🧰 Additional context used
🪛 yamllint (1.35.1)
monitoring/helmfile.yaml

[error] 179-179: trailing spaces

(trailing-spaces)

🔇 Additional comments (3)
monitoring/helmfile.yaml (3)

184-194: Verify Loki chart configuration compatibility

The new Loki chart (v6.18.0) might have different configuration structure requirements compared to the distributed version. Please ensure:

  1. All existing configuration values are mapped correctly
  2. Required new configurations are added
  3. Deprecated options are removed
✅ Verification successful

Loki configuration is compatible with v6.18.0

The configuration structure in monitoring/values/loki.yaml aligns with Loki v6.18.0 requirements:

  • Uses the distributed deployment mode with correct component scaling (ingester, querier, etc.)
  • Includes modern schema configuration (v13) with TSDB storage
  • Maintains proper integration with Promtail and Grafana
  • Contains all required configurations for distributed mode operation
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Search for Loki configuration patterns

# Search for existing Loki configuration patterns
rg -A 5 "loki:|loki\.yaml" --type yaml

# Check for potential configuration files
fd -e yaml -e yml --exec grep -l "loki" {} \;

Length of output: 835


Script:

#!/bin/bash
# Let's analyze the Loki configuration structure in detail

# Check the content of Loki values file
echo "=== Loki Values ==="
cat monitoring/values/loki.yaml

# Check Promtail configuration as it's tightly coupled with Loki
echo -e "\n=== Promtail Values ==="
cat monitoring/values/promtail.yaml

# Check if there are any Loki references in kube-prometheus-stack
echo -e "\n=== Kube Prometheus Stack Values ==="
cat monitoring/values/kube-prometheus-stack.yaml | grep -A 5 -B 5 "loki"

Length of output: 1989

🧰 Tools
🪛 yamllint (1.35.1)

[error] 194-194: trailing spaces

(trailing-spaces)


161-161: Verify compatibility between updated component versions

Several monitoring stack components have received version updates. Please ensure compatibility between:

  • kube-prometheus-stack v66.5.0
  • node-problem-detector v2.3.14
  • promtail v6.16.6

Also applies to: 177-177, 207-207


184-184: ⚠️ Potential issue

Critical: Verify Loki migration path and data persistence

The change from grafana/loki-distributed to grafana/loki represents a significant architectural shift. This requires careful consideration of:

  1. Data migration strategy
  2. Storage configuration compatibility
  3. Resource requirements adjustment
  4. Service impact during migration

Would you like assistance in generating a detailed migration plan or rollback strategy?

Also applies to: 192-192

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Actionable comments posted: 0

🧹 Nitpick comments (1)
monitoring/helmfile.yaml (1)

179-179: Remove trailing whitespace

There is a trailing space on this line that should be removed.

-    version: "2.3.14"    
+    version: "2.3.14"
🧰 Tools
🪛 yamllint (1.35.1)

[error] 179-179: trailing spaces

(trailing-spaces)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 0d26430 and a36596b.

⛔ Files ignored due to path filters (1)
  • .yarn/install-state.gz is excluded by !**/.yarn/**, !**/*.gz
📒 Files selected for processing (2)
  • monitoring/helmfile.yaml (3 hunks)
  • src/schemas/monitoring.cue (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • src/schemas/monitoring.cue
🧰 Additional context used
🪛 yamllint (1.35.1)
monitoring/helmfile.yaml

[error] 179-179: trailing spaces

(trailing-spaces)

🔇 Additional comments (3)
monitoring/helmfile.yaml (3)

Line range hint 1-17: Verify impact of configuration structure change

The renaming of _namespaceDefaults to _defaults is a breaking change that affects how default features are defined. This requires updates to all environment configurations.

Let's verify the impact:

🧰 Tools
🪛 yamllint (1.35.1)

[error] 164-164: trailing spaces

(trailing-spaces)


184-184: Verify Loki migration path and data persistence

The change from grafana/loki-distributed to grafana/loki represents a significant architectural shift in how Loki is deployed. This aligns with the PR objective but requires careful consideration of:

  1. Data migration strategy
  2. Backward compatibility
  3. Storage configuration

Let's verify the existing configuration and dependencies:

✅ Verification successful

Let me gather more specific information about the Loki configuration and changes.


Based on the verification results, I can now provide a final response:

Loki migration appears to be properly configured with TSDB storage

The change from grafana/loki-distributed to grafana/loki is supported by appropriate configuration:

  • The values file (monitoring/values/loki.yaml) shows proper TSDB storage configuration with S3 object store
  • Schema configuration is set for v13 starting from April 2024, which is compatible with Loki 3.x
  • The configuration includes necessary storage and schema settings for data persistence

The migration path appears to be well-considered with:

  1. Clear storage backend definition (TSDB with S3)
  2. Forward-looking schema configuration
  3. Proper authentication settings

Note: While the basic configuration looks correct, it's recommended to follow Grafana's official upgrade guide when performing the actual migration, especially regarding the schema transition and data backups.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for Loki-related configurations and dependencies

# Check for existing Loki configuration
echo "Checking for existing Loki configuration..."
fd -t f "loki.*ya?ml" ./values

# Check for storage-related configurations
echo "Checking for storage configurations..."
rg -A 5 "storage:|persistence:" 

# Check for any migration scripts or documentation
echo "Checking for migration-related files..."
fd -t f "migration|upgrade" .

Length of output: 3989


Script:

#!/bin/bash
# Check for Loki-related configurations in monitoring directory
echo "Checking Loki configurations in monitoring..."
rg -A 10 "loki:" monitoring/

# Check for storage/persistence configurations specific to Loki
echo "Checking Loki storage configurations..."
rg -A 10 "storage:|persistence:" monitoring/ | grep -B 5 -A 5 -i "loki"

# Check for any Loki values files
echo "Checking for Loki values files..."
fd -t f "values" monitoring/ | xargs cat

Length of output: 1573


161-161: Verify compatibility between updated chart versions

Several charts have been updated to newer versions:

  • kube-prometheus-stack: 67.7.0
  • node-problem-detector: 2.3.14
  • loki: 6.24.0
  • promtail: 6.16.6

These are significant version jumps that might introduce breaking changes.

Let's verify the compatibility and check for any breaking changes:

Also applies to: 177-177, 192-192, 207-207

✅ Verification successful

Let me gather more information about the values and configuration changes.

Let me also check the chart repository for any compatibility requirements:


Based on the gathered information, I can now provide the final response:

Chart version updates appear safe to proceed

From the release notes and configuration analysis:

  • kube-prometheus-stack 67.7.0: Only adds a new feature (fallbackScrapeProtocol option) with no breaking changes
  • Loki 6.24.0 and Promtail 6.16.6: Part of the same Grafana ecosystem, designed to work together
  • The helmfile configuration uses conditional version settings with fallbacks, making it more maintainable
  • No explicit version constraints or compatibility issues were found in the configuration

Note: While the version updates appear safe, it's recommended to test these changes in a non-production environment first, as is standard practice for monitoring stack updates.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check release notes and dependencies for the updated charts

# Check release notes for breaking changes
echo "Checking kube-prometheus-stack release notes..."
gh api repos/prometheus-community/helm-charts/releases | jq '.[] | select(.tag_name | contains("kube-prometheus-stack-67.7.0")) | .body'

echo "Checking loki release notes..."
gh api repos/grafana/helm-charts/releases | jq '.[] | select(.tag_name | contains("loki-6.24.0")) | .body'

echo "Checking promtail release notes..."
gh api repos/grafana/helm-charts/releases | jq '.[] | select(.tag_name | contains("promtail-6.16.6")) | .body'

# Check if values files exist for these versions
echo "Checking for values files..."
fd -t f "values.*ya?ml" ./values

Length of output: 1847


Script:

#!/bin/bash
# Check for values files and configuration changes in the repository
echo "Checking for values files in the repository..."
fd -t f "values.*ya?ml"

echo -e "\nChecking for configuration changes in helmfile.yaml..."
rg -A 5 -B 5 "version: \"67.7.0\"" monitoring/helmfile.yaml

echo -e "\nChecking for any breaking changes mentioned in commit messages..."
git log -n 10 --grep="break" --grep="compatibility" --grep="upgrade" -i

Length of output: 1024


Script:

#!/bin/bash
# Check chart dependencies and requirements
echo "Checking chart.yaml files for dependencies..."
fd "Chart.yaml" monitoring -x cat {}

echo -e "\nChecking for any version constraints in helmfile.yaml..."
rg "version.*[><]" monitoring/helmfile.yaml

Length of output: 314

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Actionable comments posted: 1

🧹 Nitpick comments (1)
monitoring/helmfile.yaml (1)

179-179: Fix: Remove trailing spaces.

There are trailing spaces on line 179 that should be removed.

🧰 Tools
🪛 yamllint (1.35.1)

[error] 179-179: trailing spaces

(trailing-spaces)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 38e070d and 1795d30.

📒 Files selected for processing (3)
  • monitoring/helmfile.yaml (3 hunks)
  • schema.json (5 hunks)
  • src/schemas/monitoring.cue (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • schema.json
🧰 Additional context used
🪛 yamllint (1.35.1)
monitoring/helmfile.yaml

[error] 179-179: trailing spaces

(trailing-spaces)

🔇 Additional comments (3)
src/schemas/monitoring.cue (2)

64-64: Major change: Switching from loki-distributed to loki chart.

This is a significant change that switches the Loki deployment from the distributed chart (0.79.0) to the new unified chart (6.24.0). This change requires careful validation:

  1. Ensure data persistence and migration strategy is in place
  2. Verify resource requirements and scaling capabilities
  3. Check compatibility with existing promtail configuration

Also applies to: 66-66


61-61: LGTM: Minor version updates for node-problem-detector and promtail.

The version updates are patch/minor bumps that likely contain bug fixes:

  • node-problem-detector: 2.3.13 → 2.3.14
  • promtail: 6.16.0 → 6.16.6

Also applies to: 71-71

monitoring/helmfile.yaml (1)

161-161: LGTM: Consistent version updates across Helmfile and CUE schema.

The chart versions and references in the Helmfile match those defined in the CUE schema:

  • kube-prometheus-stack: 68.1.0
  • node-problem-detector: 2.3.14
  • loki: 6.24.0 (switched to unified chart)
  • promtail: 6.16.6

Also applies to: 177-177, 184-184, 192-192, 207-207

@@ -51,24 +51,24 @@ package LaunchpadNamespaces
chart: {_repositories["prometheus-community"].charts["kube-prometheus-stack"]}
feature: #features.#metrics
_template: {
version: "60.3.0"
version: "68.1.0"
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💡 Codebase verification

Review upgrade requirements for kube-prometheus-stack version 68.1.0

Several breaking changes were identified between versions 60.3.0 and 68.1.0:

  • CRDs have been moved to sub-charts, requiring changes in deployment process
  • PSP-related changes for Kubernetes 1.25+ compatibility
  • Network policy modifications affecting connectivity
  • Breaking changes in Thanos configurations
  • Minimum Kubernetes version requirement of 1.19.0

Recommendation: Perform the upgrade in a test environment first and review the following:

  • CRD deployment strategy
  • Security policies configuration
  • Network policies
  • Thanos setup if in use
🔗 Analysis chain

Verify the impact of the significant version bump for kube-prometheus-stack.

The version bump from 60.3.0 to 68.1.0 is substantial. Please ensure there are no breaking changes that could affect your monitoring setup.

Run this script to check the changelog for breaking changes:

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check kube-prometheus-stack changelog for breaking changes between versions
gh api graphql -f query='
{
  repository(owner: "prometheus-community", name: "helm-charts") {
    releases(first: 100, orderBy: {field: CREATED_AT, direction: DESC}) {
      nodes {
        name
        description
      }
    }
  }
}' | jq '.data.repository.releases.nodes[] | select(.name | contains("kube-prometheus-stack") and (contains("60.3.0") or contains("68.1.0")))'

Length of output: 1198


Script:

#!/bin/bash
# Get commits between versions focusing on the chart directory
gh api repos/prometheus-community/helm-charts/commits \
  --jq '.[] | select(.commit.message | contains("kube-prometheus-stack")) | {message: .commit.message, url: .html_url}' \
  --method GET \
  --paginate > commits.txt

# Search for breaking changes, upgrades, or important notes
cat commits.txt | grep -i -E "break|upgrade|deprecat|important|migration" -B1 -A2

Length of output: 77980

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3 participants