devservices: Update relay_url to point at relay-cell#134
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This change supports `cell-routing` mode in sentry's devservices, which uses two relays in order to exercise the advertised upstream path, with Synapse in between. The upstream of Synapse is the `relay-cell` service.
lynnagara
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Jun 2, 2026
`cell-routing` mode in devservices now uses a two-relay chain that exercises Relay's advertised-upstream routing locally — entirely from sentry's devservices, leaving the relay repo and default `relay` config untouched: - relay-cell (:7900): processing terminus; registers with Sentry and advertises itself as the upstream for downstream relays. - relay-edge (:7901): connects to relay-cell via the synapse-ingest-router:3000. Project envelops are then forwarded directly to the advertised upstream it reads from relay-cell's project config, bypassing synapse. - also runs taskbroker + taskworker (build project configs) and ingest-events + post-process-forwarder-errors so events ingest end-to-end into a visible issue. - bin/send-cell-test-event.py: sends a test event through the edge. The relay credentials for the new `relay-edge` and `relay-cell` services were generated with the `relay credentials generate --stdout` method. The end to end path also depends on this change to Synapse's dev config getsentry/synapse#134
markstory
approved these changes
Jun 2, 2026
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This change supports
cell-routingmode in sentry's devservices, which uses two relays in order to exercise the advertised upstream path, with Synapse in between.The upstream of Synapse is the
relay-cellservice.