xds: add config for wrr_locality and round_robin LB policy extensions#19517
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htuch merged 2 commits intoenvoyproxy:mainfrom Jan 17, 2022
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xds: add config for wrr_locality and round_robin LB policy extensions#19517htuch merged 2 commits intoenvoyproxy:mainfrom
htuch merged 2 commits intoenvoyproxy:mainfrom
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Signed-off-by: Mark D. Roth <roth@google.com>
Signed-off-by: Mark D. Roth <roth@google.com>
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htuch
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api/envoy/extensions/load_balancing_policies/wrr_locality/v3/wrr_locality.proto
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htuch
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api/envoy/extensions/load_balancing_policies/round_robin/v3/round_robin.proto
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…envoyproxy#19517) This PR adds two new LB policy extension configurations, to be used in gRPC via the new load_balancing_policy field: * round_robin: This allows configuring the built-in ROUND_ROBIN LB policy via the new extension-based API. * wrr_locality: This is an extension config for a new policy that does ROUND_ROBIN-style locality picking and then delegates to a child LB policy extension to pick the endpoint within the locality. This will allow users to plugin their own custom endpoint-picking logic without having to reimplement the locality-picking logic. This is a small step toward moving away from the legacy lb_policy enum. Completing that migration will require work in Envoy to create extension configs for all built-in LB policies and register those extensions. Risk Level: Low Testing: N/A Docs Changes: Included in PR Release Notes: N/A Platform Specific Features: N/A Signed-off-by: Mark D. Roth <roth@google.com> Signed-off-by: Josh Perry <josh.perry@mx.com>
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Signed-off-by: Mark D. Roth roth@google.com
Commit Message: xds: add config for wrr_locality and round_robin LB policy extensions
Additional Description: This PR adds two new LB policy extension configurations, to be used in gRPC via the new
load_balancing_policyfield:round_robin: This allows configuring the built-in ROUND_ROBIN LB policy via the new extension-based API.wrr_locality: This is an extension config for a new policy that does ROUND_ROBIN-style locality picking and then delegates to a child LB policy extension to pick the endpoint within the locality. This will allow users to plugin their own custom endpoint-picking logic without having to reimplement the locality-picking logic.This is a small step toward moving away from the legacy
lb_policyenum. Completing that migration will require work in Envoy to create extension configs for all built-in LB policies and register those extensions.Risk Level: Low
Testing: N/A
Docs Changes: Included in PR
Release Notes: N/A
Platform Specific Features: N/A
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