sidecar

term

cloudnetworking

A helper container that runs alongside a main application to add capabilities without changing it.

The sidecar pattern attaches concerns like proxying, logging, or TLS termination as a neighbour container, so the app stays focused on its own job. It is the building block of the service mesh, where the sidecar handles all network traffic.

Also known as: sidecar container, sidecar proxy

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