1 files changed, 28 insertions, 0 deletions
diff --git a/server/health.ts b/server/health.ts
new file mode 100644
index 0000000..1acc074
--- /dev/null
+++ b/server/health.ts
@@ -0,0 +1,28 @@
+import {
+  getRequiredEnv,
+  getStdout,
+  type HealthChecker,
+  type HealthCheckInput,
+  HealthCheckOutput,
+  type IEither,
+  type ITraceable,
+  type ServerTrace,
+  TraceUtil,
+} from "@emprespresso/pengueno";
+
+export const healthCheck: HealthChecker = (
+  input: ITraceable<HealthCheckInput, ServerTrace>,
+): Promise<IEither<Error, HealthCheckOutput>> =>
+  input
+    .bimap(TraceUtil.withFunctionTrace(healthCheck))
+    .move(getRequiredEnv("LAMINAR_HOST"))
+    // ensure LAMINAR_HOST is propagated to getStdout for other procedures
+    .map((e) => e.get().moveRight(["laminarc", "show-jobs"]))
+    .map((i) =>
+      i
+        .get()
+        .mapRight(i.move.apply)
+        .flatMapAsync(getStdout.apply)
+        .then((gotJobs) => gotJobs.moveRight(HealthCheckOutput.YAASSSLAYQUEEN)),
+    )
+    .get();