chore: Update genmon service Docker image to version 0.0.3

genmon/Dockerfile

@@ -2,33 +2,43 @@
 FROM python:3.8-slim
 # Base image python:3.8-slim is chosen for its minimal size while still providing Python 3.8.
 
+# Set non-interactive mode and define timezone to avoid unnecessary prompts during build.
+ENV DEBIAN_FRONTEND=noninteractive TZ="America/Chicago"
+
 # Install essential packages in one layer to reduce the image size.
-RUN apt update && apt upgrade -y && \
-    DEBIAN_FRONTEND="noninteractive" TZ="America/Chicago" apt install -y --no-install-recommends \
-    git sudo cron net-tools nano && \
-    rm -rf /var/lib/apt/lists/*
-# Update and upgrade packages, install necessary tools (git, sudo, cron, net-tools, nano) for the application.
-# Non-interactive mode is used to avoid hanging during build due to user prompts.
-# Clean up after install reduces image layers and size.
+# Combine update, install, and cleanup in a single RUN to minimize layer size.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    git sudo cron net-tools && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/* /var/cache/apt/*
 
-# Expose ports for SSH, HTTPS, and a application port to get to the genmon application.
-EXPOSE 22 443 8000
+# Expose necessary ports for HTTPS, and the application.
+EXPOSE 443 8000
 
 # Set the working directory for any subsequent instructions.
 WORKDIR /git
-# '/git' directory will hold all our application files.
 
-# Clone the repository and prepare it for use.
-RUN git clone http://github.com/jgyates/genmon.git && \
+# Configure application settings via environment variables.
+ENV USE_SERIAL_TCP=true
+
+# Clone the repository with shallow clone to minimize data pulled.
+RUN git clone --depth 1 http://github.com/jgyates/genmon.git && \
     chmod 775 /git/genmon/startgenmon.sh /git/genmon/genmonmaint.sh && \
     rm -rf /git/genmon/.git
-# Clone the genmon repository, modify script permissions to make them executable, and remove the .git directory to conserve space.
 
 # Initialize the application and configure it.
-RUN /git/genmon/genmonmaint.sh -i -n && \
-    sed -i 's/use_serial_tcp = False/use_serial_tcp = True/g' /etc/genmon/genmon.conf
-# Run initial setup scripts and modify the configuration to enable TCP for serial communications.
+RUN /git/genmon/genmonmaint.sh -i -n
+# Run initial setup scripts.
+
+# Clean up apt caches.
+RUN apt-get clean && \
+    rm -rf /var/lib/apt/lists/* /var/cache/apt/*
+
+# Copy the entrypoint script to the container.
+COPY entrypoint.sh /entrypoint.sh
+
+# Make the entrypoint script executable.
+RUN chmod +x /entrypoint.sh
 
-# Define the default command to run within the container.
-CMD ["/bin/bash", "-c", "touch /var/log/startup.log && /git/genmon/startgenmon.sh start && tail -F /var/log/startup.log"]
-# Ensure the startup log exists, start the genmon application, and follow the startup log for debugging and monitoring.
+# Set the custom entrypoint script as the entrypoint
+ENTRYPOINT ["/entrypoint.sh"]

genmon/VERSION

@@ -1 +1 @@
-0.0.2
+0.0.3

genmon/docker-compose.yml

@@ -6,7 +6,7 @@ services:
   # 'big-bear-genmon' is the name of the service
   big-bear-genmon:
     # Specifies the Docker image to use for the big-bear-genmon service
-    image: bigbeartechworld/big-bear-genmon:0.0.2
+    image: bigbeartechworld/big-bear-genmon:0.0.3
     # Environment variables to set inside the container
     environment:
       - TZ=America/Chicago # Set the timezone to 'America/Chicago'

genmon/entrypoint.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Ensure the non-root user can write where necessary
+touch /var/log/startup.log
+
+# If you need to modify configurations owned by root, you need to adjust this beforehand or run as root
+sed -i "s/use_serial_tcp = .*/use_serial_tcp = $USE_SERIAL_TCP/g" /etc/genmon/genmon.conf
+
+# Start the application
+/git/genmon/startgenmon.sh start
+
+# Follow the log for outputs
+tail -F /var/log/startup.log