Add chaining tuning plugin #3587
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yash97
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Feb 6, 2026
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| // Add IPv6 disable sysctls when DISABLE_POD_V6 is enabled | ||
| if disablePodV6 { | ||
| sysctls["net.ipv6.conf.all.disable_ipv6"] = "1" |
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why do we need to explicitly add these?
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Because VPC CNI currently use tuning CN plugin to disable ipv6. This is just keeping that feature
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i wonder if i need to move this lower and override any tuning configs
yash97
reviewed
Feb 6, 2026
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| Example: | ||
| ``` | ||
| TUNING_SYSCTLS='{"net.core.somaxconn":"1024","net.ipv4.tcp_max_syn_backlog":"2048"}' |
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TOL does user have to provide value through env var? what will be experience if we had config map?
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This wasn't completely sure about. I was thinking env var however config map could work too however I didn't want to add a whole new config map just for this because it seems over kill
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What type of PR is this?
feature
Which issue does this PR fix?:
#3586
What does this PR do / Why do we need it?:
Testing done on this change:
Will this PR introduce any new dependencies?:
Will this break upgrades or downgrades? Has updating a running cluster been tested?:
Does this change require updates to the CNI daemonset config files to work?:
Does this PR introduce any user-facing change?:
Yes.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.