Parse port into int, bind cannot accept str

Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.8.10
+
+RUN apt-get update
+RUN apt-get upgrade -y
+
+COPY pysyslog.py /app/pysyslog.py
+
+WORKDIR /app
+
+EXPOSE 514
+
+CMD ["/app/pysyslog.py", "-l", "logs.log", "-p", "514", "-i", "0.0.0.0"]

pysyslog.py

@@ -49,6 +49,7 @@ def main(argv):
     logging.basicConfig(level=logging.INFO, format='%(message)s', datefmt='',
                         filename=logfile, filemode='a')
 
+    port = int(port)
     try:
         server = socketserver.UDPServer((boundip, port), SyslogUDPHandler)
         server.serve_forever(poll_interval=0.5)

start_as_docker.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+if [[ -z "${PYSYSLOG_PORT}" ]]; then
+    echo "Missing env var PYSYSLOG_PORT"
+    exit;
+fi
+
+docker build -t pysyslog-py-3.8.10 .
+
+echo "Build done, now starting docker with port ${PYSYSLOG_PORT}"
+
+docker run -d --rm -p ${PYSYSLOG_PORT}:514/udp pysyslog-py-3.8.10
+
+echo "To follow the logs enter 'docker logs -f {token given above}'"
+
+echo "To stop the container 'docker kill {token given above}'"