cherry-picks from upstream on v1.14.10 for conformance test fix #19
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this commit updates the service logic, from the agent all the way down to the datapath, to take into account the L4 protocols specified in a k8s service. Historically Cilium has always been ignoring, at least from a end user perspective, the protocol specified in a k8s service, resulting in the inability to expose a port only for a given protocol, or in the opposite case, resulting in a single protocol-agnostic service exposed whenever 2 TCP and UDP services on the same port were configured. Co-authored-by: Nate Sweet <[email protected]> Co-authored-by: Antonio Ojea <[email protected]> Signed-off-by: Gilberto Bertin <[email protected]>
add a new bpf-lb-proto-diff flag that disables the service protocol differentiation logic, allowing to keep the old Cilium behavior where service protocols are not distinguished Signed-off-by: Gilberto Bertin <[email protected]>
when upgrading to a version of Cilium that supports and has service protocol differentiation enabled, existing services without protocol set will be overwritten (or better, restored from the bpf maps, deleted because they are orphan and the recreated) with their protocol set. As this causes connection disruptions, keep those services without protocol until the user explicitly deletes them. To allow both type of services to co-exist, this commit: - introduces a second service lookup in the datapath, without the protocol set, in case the protocol lookup fails - updates the service allocation logic to check both for services with and without protocol before allocating a new one - updates the deletion logic to look for both with and without protocol versions, to ensure all service versions are proper deleted Co-authored-by: Antonio Ojea <[email protected]> Signed-off-by: Gilberto Bertin <[email protected]>
Signed-off-by: Gilberto Bertin <[email protected]>
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The cilium#33434 fix for the issue described in cilium#9207 will not be backported to older versions. So we would like to cherry-pick the upstream changes on the version we support now v1.14.10.