The sidecar proxy approach enables a lot of awesomeness. Squarely in the datapath between microservices, the sidecar can precisely tell what the application is trying to do. It can monitor and instrument protocol traffic, not in the bowels of the networking layers but at the application level, to enable deep visibility, access controls and traffic management. If we look closely however, there are many intermediate layers that the data has to pass through before the high-value analysis of appl...
