Add UDPRoute to VirtualService#3698
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😊 Welcome @kirgene! This is either your first contribution to the Istio api repo, or it's been You can learn more about the Istio working groups, Code of Conduct, and contribution guidelines Thanks for contributing! Courtesy of your friendly welcome wagon. |
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Hi @kirgene. Thanks for your PR. I'm waiting for a istio member to verify that this patch is reasonable to test. If it is, they should reply with Tip We noticed you've done this a few times! Consider joining the org to skip this step and gain Once the patch is verified, the new status will be reflected by the I understand the commands that are listed here. DetailsInstructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. |
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This is a big step; Istio has never supported UDP service-to-service. We'd need a design doc to even begin to understand how this feature would work |
Add a Udp field on VirtualService and a UDPRoute message describing L4 routing for UDP traffic. Mirrors the existing TCPRoute structure. This is the natural place for Gateway API UDPRoute translations to live on the Istio side.
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Add UDPRoute support to the kube-gateway controller. Per the Gateway API spec, one UDPRoute can attach to a listener, with port-based routing to a single upstream cluster. UDPRouteCollection produces VirtualServices using the new Udp field (istio/api#3698). The gateway listener builder emits UDP socket listeners with envoy.filters.udp_listener.udp_proxy pointing at the resolved upstream cluster.
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@keithmattix I wrote up the design doc: RFC: Gateway API UDPRoute Support (in the Networking WG folder). It scopes UDP to gateway ingress only, no service-to-service. Worth noting Gateway API is promoting UDPRoute to v1 in the upcoming 1.6 release (kubernetes-sigs/gateway-api#4843). |
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@kirgene Thank you! I added the doc to the agenda for our weekly working group meeting |
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@keithmattix thanks for adding it! I'd like to present it myself and answer questions live, but I have a conflict this Wednesday. Could it be slotted for an upcoming meeting I can attend? Happy to be flexible on which week. |
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@kirgene Of course, we can bump it to the next week |
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@keithmattix perfect, thank you. |
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some inputs istio/istio#1430 |
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Adds a
udpfield onVirtualServiceand aUDPRoutemessage for L4 UDP routing. Mirrors the existingTCPRoutestructure.Used by istio/istio#59664 to carry Gateway API UDPRoute translations alongside HTTP, TCP, and TLS routes.