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feat(ct-metrics): add initial conntrack metrics for Prometheus #1057

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@SRodi SRodi commented Nov 22, 2024

Description

Create initial metrics for conntrack:

  • packets_count_per_connection [gauge] see example below
  • bytes_count_per_connection [gauge]
  • connections_count [count] WIP

Related Issue

#806

Checklist

  • I have read the contributing documentation.
  • I signed and signed-off the commits (git commit -S -s ...). See this documentation on signing commits.
  • I have correctly attributed the author(s) of the code.
  • I have tested the changes locally.
  • I have followed the project's style guidelines.
  • I have updated the documentation, if necessary.
  • I have added tests, if applicable.

Screenshots (if applicable) or Testing Completed

This example shows a long-lived TCP connection between client src_ip="10.244.0..230 and server 10.244.1.85

image

This example shows the bytes_count_per_connection where dst_ip=10.244.0.113 which is the pod IP for metrics-server on one of the cluster nodes.

image


Please refer to the CONTRIBUTING.md file for more information on how to contribute to this project.

@SRodi SRodi self-assigned this Nov 22, 2024
@SRodi SRodi requested a review from a team as a code owner November 22, 2024 10:20
@SRodi SRodi marked this pull request as draft November 22, 2024 10:21
@MikeZappa87
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Did we think though around scalability, performance and stability when adding these metrics? Do we have any concerns? Do we have numbers to back this up?

@@ -140,6 +140,26 @@ func InitializeMetrics() {
dnsResponseCounterDescription,
)

// Conntrack Metrics
ConntrackPacketsCounter = exporter.CreatePrometheusGaugeVecForMetric(
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Can you find a way to integrate these into Hubble metrics as well ?

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3 participants