From 55a022a95ba43c0a378e3d1e26dc89e9bd3ff355 Mon Sep 17 00:00:00 2001
From: demo-bot <demo-bot@kyndryl.com>
Date: Sun, 9 Aug 2026 15:10:48 +0000
Subject: [PATCH] decomposer: generate files for Create a production-suitable
 Dockerfile and minimal Docker Compose configuration for packaging and running
 the completed FastAPI endpoint monitoring service.

---
 src/containerizer/cli.py | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 src/containerizer/cli.py

diff --git a/src/containerizer/cli.py b/src/containerizer/cli.py
new file mode 100644
index 0000000..b327f4b
--- /dev/null
+++ b/src/containerizer/cli.py
@@ -0,0 +1,40 @@
+import argparse
+import json
+import sys
+
+from .generate import containerize, dumps
+from .verify import verify_with_docker
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Containerize an existing FastAPI service")
+    parser.add_argument("--input", default="-", help="contract JSON file, or - for stdin")
+    parser.add_argument("--service-dir", required=True, help="existing FastAPI repository root")
+    parser.add_argument("--output", default="-", help="result JSON file, or - for stdout")
+    parser.add_argument("--verify-docker", action="store_true",
+                        help="actually build, start, probe (when configured), and stop Compose")
+    args = parser.parse_args()
+    raw = sys.stdin.read() if args.input == "-" else open(args.input).read()
+    payload = json.loads(raw)
+    result = containerize(payload, args.service_dir)
+    if args.verify_docker:
+        spec = payload["service_specification"]
+        cfg = spec.get("container", {})
+        port = cfg.get("port", spec.get("port", 8000))
+        health = cfg.get("health_endpoint", spec.get("health_endpoint"))
+        result["container_artifacts"]["docker_verification"] = verify_with_docker(
+            args.service_dir, port, health)
+    else:
+        result["container_artifacts"]["docker_verification"] = {
+            "executed": False, "passed": None,
+            "reason": "--verify-docker was not requested",
+        }
+    text = dumps(result)
+    if args.output == "-":
+        sys.stdout.write(text)
+    else:
+        open(args.output, "w").write(text)
+
+
+if __name__ == "__main__":
+    main()