feat(devserver): Run separate transactions post process forwarder (#4…

…0130)

Combined post process forwarder no longer works with Sentry/Snuba
defaults (fully separated errors/transactions topics).

Running a combined PPF caused this error in self hosted:
#40120.

In the future it may be nice to support a PPF implementation that can
consume from multiple topics in order to reduce the amount of docker
containers in dev / low volume environments but this is not currently
possible.

src/sentry/runner/commands/devserver.py

@@ -18,11 +18,22 @@
         "sentry",
         "run",
         "post-process-forwarder",
-        "--entity=all",
+        "--entity=errors",
         "--loglevel=debug",
         "--commit-batch-size=100",
         "--commit-batch-timeout-ms=1000",
     ],
+    "post-process-forwarder-transactions": [
+        "sentry",
+        "run",
+        "post-process-forwarder",
+        "--entity=transactions",
+        "--loglevel=debug",
+        "--commit-batch-size=100",
+        "--commit-batch-timeout-ms=1000",
+        "--commit-log-topic=snuba-transactions-commit-log",
+        "--synchronize-commit-group=transactions_group",
+    ],
     "ingest": ["sentry", "run", "ingest-consumer", "--all-consumer-types"],
     "region_to_control": ["sentry", "run", "region-to-control-consumer", "--region-name", "_local"],
     "server": ["sentry", "run", "web"],
@@ -250,6 +261,7 @@ def devserver(
 
         if eventstream.requires_post_process_forwarder():
             daemons += [_get_daemon("post-process-forwarder")]
+            daemons += [_get_daemon("post-process-forwarder-transactions")]
 
         if settings.SENTRY_EXTRA_WORKERS:
             daemons.extend([_get_daemon(name) for name in settings.SENTRY_EXTRA_WORKERS])