sync from master.#117

Merged

wangfakang merged 25 commits intowangfakang:masterfrom

envoyproxy:main

Jul 9, 2021

Commits on Jul 5, 2021

Commits on Jul 6, 2021

Doc: Clarify request/response attributes are http-only (#17204)
mandarjog
authored

Commits on Jul 7, 2021

Commits on Jul 8, 2021

Commits on Jul 9, 2021

protobuf: allow relaxed opaque message with no properties (#17122)
Shikugawa
authored
Deprecate cluster's and listener's `tls_context` in favor of transport socket (#17163)
tyxia
authored
alpha matching: support generic action factory context (#17271)
Snow Pettersen
authored
xDS unified mux: subscription states (#16486)
Dmitri Dolguikh
authored
stats: optimize stats-matchers instantiated with "prefix." pattern, to avoid having to do toString() mapping and caching (#17018)
jmarantz
authored
ci: Add cache for missing precheck jobs (#17155)
phlax
authored