implement docker remote and local cron job

Dockerfile

@@ -1,6 +1,10 @@
 # Use Ubuntu 20.04 as the base image
 FROM ubuntu:20.04
 
+# Set environment variables to avoid interactive prompts
+ENV DEBIAN_FRONTEND=noninteractive
+ENV TZ=America/Chicago
+
 # Install dependencies
 RUN apt-get update && apt-get install -y \
     sqlite3 \
@@ -10,11 +14,12 @@ RUN apt-get update && apt-get install -y \
     gzip \
     && rm -rf /var/lib/apt/lists/*
 
+ARG CACHE_BUST=1
+
 # Create necessary directories
 RUN mkdir -p /jobs/data/sqlite
 RUN mkdir -p /var/tmp
 
-# Copy the backup script into the container
 COPY backup_sqlite.sh /usr/local/bin/backup_script.sh
 
 # Make the script executable
@@ -23,7 +28,6 @@ RUN chmod +x /usr/local/bin/backup_script.sh
 # Create the cron log file
 RUN touch /var/log/cron.log
 
-# Copy the cron job file into the cron.d directory
 COPY backup_cron /etc/cron.d/backup_cron
 
 # Set permissions for the cron job file
@@ -35,5 +39,11 @@ RUN crontab /etc/cron.d/backup_cron
 # Expose the cron log file as a volume
 VOLUME /var/log
 
-# Start cron in the foreground when the container starts
-CMD ["cron", "-f"]
+# Copy the entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+
+# Make the entrypoint script executable
+RUN chmod +x /entrypoint.sh
+
+# Use the entrypoint script to start the container
+CMD ["/entrypoint.sh"]