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EBS: fail cleanly on invalid configuration (clear message, exit 78, no crash) - #206
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…o crash) Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughThe service now reports options validation failures to stderr and exits with code 78. A process-level test checks this behavior for missing Twitch IDs. The README adds troubleshooting guidance for startup configuration failures. ChangesStartup validation
Priority: ⬇️ Low Estimated code review effort: 2 (Simple) | ~10 minutes Change: Bug fix Suggested reviewers: Merge Risk: 🟡 Moderate · up to The new clean-failure handling covers missing Twitch IDs, but some invalid settings can still crash the service with an unhandled exception instead of exiting with code 78. The troubleshooting guidance may also leave operators restarting a container that still has its old configuration. Address these gaps before merging. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Actionable comments posted: 3
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/EDNexus.Ebs/Program.cs:
- Line 443: Update the EbsOptions binding calls in Program.cs to handle
typed-setting conversion failures at the binding boundary, including the
bindings before the OptionsValidationException handler. Identify and report the
affected setting and exit with code 78, while limiting this handling to
configuration conversion failures so unrelated InvalidOperationException
instances remain unclassified.
- Line 439: Expand the protected startup path in Program to include app.Build()
and the startup service resolutions before any EbsOptions.Value access; ensure
an OptionsValidationException from those steps reaches the existing handler that
reports the validation message and exits with code 78.
Review comments at @src/EDNexus.Ebs/README.md:
- Line 329: Update the recovery instructions in the README’s `restart:
unless-stopped` section to tell operators to recreate the container after
editing `.env`, using `docker compose up -d --force-recreate` or equivalent;
clarify that restarting alone does not apply changed environment variables.
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src/EDNexus.Ebs/Program.cssrc/EDNexus.Ebs/README.mdtests/EDNexus.Ebs.Tests/EbsHardeningTests.cstests/EDNexus.Ebs.Tests/StartupFailureTests.cs
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…d while the host runs The configuration-error exit now covers building the host and the services resolved during setup (options validate when first read), and typed-setting conversion failures from the configuration binder, which are a plain InvalidOperationException; only that specific failure is classified, other exceptions still crash. The Testing environment still lets the exception reach the test host. README: recreate the container after editing .env, since a restart reuses the old environment. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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A missing or invalid setting made the EBS container die with an unhandled exception (full stack trace, and a crash report from any crash handler in the container, e.g. Datadog crash tracking). It is an operator configuration mistake, not a bug, so it should say what to fix and exit cleanly.
Context
Since v0.0.21 the service validates its settings at start-up (EBS-9) instead of failing at the first Twitch login.
Twitch:ClientIdandTwitch:ExtensionIdhave always defaulted to empty and must come from.env/ environment variables, so a.envholding only the two secrets now stops the container at start. That check is intended; how it failed was not.Change
Program.cs: catchOptionsValidationExceptionaroundapp.Run(), printEDNexus EBS cannot start: the configuration is invalid.with each failure and a pointer to.env.example, and exit with code 78 (EX_CONFIG). No unhandled exception, so no crash dump or crash report.README: new Troubleshooting section with the common messages and fixes (and that.env.examplealready contains the public Client ID and Extension ID).StartupFailureTests: runs the real service as a child process withTwitch__ClientId/Twitch__ExtensionIdempty and asserts exit code 78, both settings named, and no "Unhandled exception". RemovedInvalid_configuration_stops_the_host_from_starting, a test-host version of the same check that is redundant now and was the source of the intermittentObjectDisposedExceptionflake.Fixing a running deployment
Set
Twitch__ClientIdandTwitch__ExtensionIdin.env(see.env.example; usually the same value) and restart the container. This PR does not change that requirement.Verified
dotnet build0 warnings; EBS tests 184/184, three runs in a row. Ran the built service by hand with the two settings missing: the message above, exit code 78. A new container image is published by the EBS container workflow after merge.🤖 Generated with Claude Code
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.envfiles.