[Backport release-2.4] render: Have the context function listen on a TCP port#173
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Previously, the context function (which injects and extracts function pipeline context when rendering) listened on a unix socket. This didn't work in environments where containers don't share a kernel with the CLI (e.g., macOS with Docker Desktop), causing render to time out in such environments. Update the context function to listen on a TCP port. We already handle functions listening on TCP on the host, since this is how the "development" function runtime works. Note that we have to listen on 0.0.0.0 (not localhost/127.0.0.1) to ensure we're reachable from Docker. Fixes #161 Signed-off-by: Adam Wolfe Gordon <awg@upbound.io> (cherry picked from commit e80ffa7)
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Jun 30, 2026
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Description
Backport of #163 to
release-2.4.