Add container; fix typo

Containerfile

@@ -0,0 +1,10 @@
+# Build: podman build -t code.philo.ydns.eu/philorg/tinyseady-mailer -f Containerfile
+
+FROM docker.io/python:3.12-alpine
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/
+
+COPY . /src
+WORKDIR /src
+RUN uv sync --frozen --no-cache && uv pip install --system .
+
+CMD tinysteady-mailer

src/tinysteady_mailer/tsmailer.py

@@ -206,7 +206,7 @@ async def mailer():
         last_failure = sorted(failure_files, key=lambda f: f.lstat().st_mtime)[-1]
         users = read_json(last_failure)
         if len(users) == 0:
-            logger.info(f"No record in {last_failure} file, existing.")
+            logger.info(f"No record in {last_failure} file. Nothing to do, exiting.")
             sys.exit(0)
         logger.info(
             f"Using a file with {len(users)} failed attempts for this config ({last_failure})"