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Ipv6 test#214

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ipv6-test
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Ipv6 test#214
matejvasek wants to merge 35 commits into
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ipv6-test

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matejvasek added 6 commits May 7, 2026 16:17
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
matejvasek added 23 commits May 8, 2026 01:53
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
This reverts commit fb801ae.
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
ResolveTCPAddr + DialTCP resolves the hostname to a single address and
dials it directly.  When DNS returns both A and AAAA records (dual-stack
Docker network), the IPv4 address is typically returned first.  On
IPv6-only pods this fails with "network is unreachable" because the pod
has no IPv4 connectivity.

Switch to net.Dial which implements Happy Eyeballs (RFC 6555): it
resolves all addresses, tries them concurrently with IPv6 preferred,
and uses whichever connects first.  The tcp4/tcp6 explicit cases are
also handled correctly by net.Dial.

Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
Signed-off-by: Matej Vašek <matejvasek@gmail.com>
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