Delta ADS/xDS support. Added NewGrpcMuxImpl, a GrpcMux implementation that supports delta (and is intended to soon take over for state-of-the-world). DeltaSubscriptionImpl (which can soon be renamed to/replace GrpcSubscriptionImpl) now uses that new class. NewGrpcMuxImpl is the first user of the recently added WatchMap.
Risk Level: medium (huge new thing that people aren't using yet)
Testing: added delta param variant to ads_integration_test
Docs Changes: added source/common/config/README.md and accompanying diagram, added to root/configuration/overview.rst and root/intro/arch_overview/operations/dynamic_configuration.rst.
Release Notes: added support for delta xDS (including ADS) delivery
Fixes#4991
Signed-off-by: Fred Douglas <fredlas@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ abb14cdd7aa50d0a54a9288420a098314581782a
Omit the node identifier from subsequent discovery requests on the same stream.
Restricted to non-incremental xDS for tractability.
Risk Level: low, affects xDS protocol but guarded by an option
Testing: Unit/integration tests are updated
Docs Changes: xDS spec clarification
Release Notes: omit the node identifier from subsequent discovery requests
Fixes: #7860
Signed-off-by: Kuat Yessenov <kuat@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ 8e07e8297d7d5e68cf6d6d7e49ba98d2500cdef7
Signed-off-by: Daniel Hochman <danielhochman@users.noreply.github.com>
Mirrored from https://github.com/envoyproxy/envoy @ c586af9d3f5940acc73d6a5fd0fdc2c521b6243d
In order to better support clients such as gRPC-LB that want to access
only a single listener/cluster, provide the scope in the xDS
specification to specify explicit resource hints.
Signed-off-by: Harvey Tuch <htuch@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ 7ef20d7609fb6f570a058fcf4b4e000922d7eeba
data-plane-api(CircleCI)