fix: host readiness probe on ipv6 in addition to ipv4 (#3765) #3767
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Problem: the readiness probe endpoint is not available on IPv6. This is a problem on IPv6 only clusters when using IPv6 for the pod network. The gateway pod refuses to come up because the readyz condition never fulfills. Example: ``` Warning Unhealthy 88s (x160 over 26m) kubelet Readiness probe failed: Get "http://[fdd3:7046:2ad5:430a:39bb:bc6d:e254:a621]:8081/readyz": dial tcp [fdd3:7046:2ad5:430a:39bb:bc6d:e254:a621]:8081: connect: connection refused ``` Solution: host the readyz endpoint on IPv6 as well.
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## release-2.1 #3767 +/- ##
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+ Coverage 86.94% 86.96% +0.01%
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Files 128 128
Lines 16000 16001 +1
Branches 62 62
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+ Hits 13911 13915 +4
+ Misses 1922 1919 -3
Partials 167 167 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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bjee19
approved these changes
Aug 20, 2025
salonichf5
approved these changes
Aug 20, 2025
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Cherrypick of #3765
Problem: the readiness probe endpoint is not available on IPv6. This is a problem on IPv6 only clusters when using IPv6 for the pod network. The gateway pod refuses to come up because the readyz condition never fulfills.
Example:
Solution: host the readyz endpoint on IPv6 as well.
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