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cni: Reserve local ports for DNS proxy even if IPv6 is disabled #32725
Merged
tklauser
merged 2 commits into
cilium:main
from
gandro:pr/gandro/fix-port-reservation-not-working-with-ipv6-disabled
May 28, 2024
Merged
cni: Reserve local ports for DNS proxy even if IPv6 is disabled #32725
tklauser
merged 2 commits into
cilium:main
from
gandro:pr/gandro/fix-port-reservation-not-working-with-ipv6-disabled
May 28, 2024
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This aids in troubleshooting, as the list of ports is not visible anywhere else in the sysdump. Signed-off-by: Sebastian Wicki <sebastian@isovalent.com>
This fixes a bug where the port reservation of ports which can conflict with transparent DNS proxy where only reserved if IPv6 was enabled. The call to `reserveLocalIPPorts` was accidentally added in the "IPv6-only" branch. This commit fixes that by unconditionally reserving local ports. Fixes: 11fe7cc ("cilium-cni: Reserve ports that can conflict with transparent DNS proxy") Signed-off-by: Sebastian Wicki <sebastian@isovalent.com>
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nebril
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May 27, 2024
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Good catch!
tklauser
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May 28, 2024
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Thanks, looks good for @cilium/cli.
This was referenced Jun 8, 2024
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Labels
area/cni
Impacts the Container Networking Interface between Cilium and the orchestrator.
area/proxy
Impacts proxy components, including DNS, Kafka, Envoy and/or XDS servers.
backport-done/1.13
The backport for Cilium 1.13.x for this PR is done.
backport-done/1.14
The backport for Cilium 1.14.x for this PR is done.
backport-done/1.15
The backport for Cilium 1.15.x for this PR is done.
ready-to-merge
This PR has passed all tests and received consensus from code owners to merge.
release-note/bug
This PR fixes an issue in a previous release of Cilium.
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This fixes a bug where the port reservation of ports which can conflict with transparent DNS proxy where only reserved if IPv6 was enabled.
The call to
reserveLocalIPPorts
was accidentally added in the "IPv6-only" branch. This commit fixes that by unconditionally reserving local ports.Fixes: 11fe7cc ("cilium-cni: Reserve ports that can conflict with transparent DNS proxy")