From 1cf036a80de5ef5cf41b18d5c64f0849e0ab592b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Fern=C3=A1ndez?=
 <7312236+fernandezcuesta@users.noreply.github.com>
Date: Fri, 11 Sep 2026 23:39:23 +0200
Subject: [PATCH] feat: leverage reusable cli standard options
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Signed-off-by: Jesús Fernández <7312236+fernandezcuesta@users.noreply.github.com>
---
 Dockerfile       |  2 +-
 function/main.py | 42 ++++--------------------------------------
 pyproject.toml   |  2 +-
 3 files changed, 6 insertions(+), 40 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 21c60a7..c668646 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,7 +31,7 @@ RUN --mount=type=cache,target=/root/.cache/pip \
 
 # Copy the function venv to our runtime stage. It's important that the path be
 # the same as in the build stage, to avoid shebang paths and symlinks breaking. 
-FROM gcr.io/distroless/python3-debian12 AS image
+FROM gcr.io/distroless/python3-debian13 AS image
 WORKDIR /
 COPY --from=build /venv/fn /venv/fn
 EXPOSE 9443
diff --git a/function/main.py b/function/main.py
index 7ea1197..1b049a4 100644
--- a/function/main.py
+++ b/function/main.py
@@ -1,50 +1,16 @@
 """The composition function's main CLI."""
 
 import click
-from crossplane.function import logging, runtime
+from crossplane.function import cli as sdkcli
 
 from function import fn
 
 
 @click.command()
-@click.option(
-    "--debug",
-    "-d",
-    is_flag=True,
-    help="Emit debug logs.",
-)
-@click.option(
-    "--address",
-    default="0.0.0.0:9443",
-    show_default=True,
-    help="Address at which to listen for gRPC connections",
-)
-@click.option(
-    "--tls-certs-dir",
-    help="Serve using mTLS certificates.",
-    envvar="TLS_SERVER_CERTS_DIR",
-)
-@click.option(
-    "--insecure",
-    is_flag=True,
-    help="Run without mTLS credentials. "
-    "If you supply this flag --tls-certs-dir will be ignored.",
-)
-def cli(debug: bool, address: str, tls_certs_dir: str, insecure: bool) -> None:  # noqa:FBT001  # We only expect callers via the CLI.
+@sdkcli.standard_options
+def cli(**kwargs):
     """A Crossplane composition function."""
-    try:
-        level = logging.Level.INFO
-        if debug:
-            level = logging.Level.DEBUG
-        logging.configure(level=level)
-        runtime.serve(
-            fn.FunctionRunner(),
-            address,
-            creds=runtime.load_credentials(tls_certs_dir),
-            insecure=insecure,
-        )
-    except Exception as e:
-        click.echo(f"Cannot run function: {e}")
+    sdkcli.run(fn.FunctionRunner(), **kwargs)
 
 
 if __name__ == "__main__":
diff --git a/pyproject.toml b/pyproject.toml
index 0c04510..e6b1d75 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ classifiers = [
 ]
 
 dependencies = [
-  "crossplane-function-sdk-python==0.14.0",
+  "crossplane-function-sdk-python==0.15.0",
   "click==8.5.0",
   "grpcio>=1.73.1",
 ]