# Use a minimal base image
FROM alpine:latest

# Install necessary packages
RUN apk add --no-cache snmpd python3 py3-pip

# Install any additional Python packages if needed
RUN pip3 install --no-cache-dir random

# Copy the custom script into the container
COPY custom_snmp_script.py /usr/local/bin/custom_snmp_script.py

# Make the script executable
RUN chmod +x /usr/local/bin/custom_snmp_script.py

# Configure snmpd to use the custom script
RUN echo "extend customOID /usr/local/bin/custom_snmp_script.py" >> /etc/snmp/snmpd.conf

# Expose the SNMP port
EXPOSE 161/udp

# Start snmpd with environment variables
CMD ["sh", "-c", "snmpd -f -c /etc/snmp/snmpd.conf -Lf /dev/null -p /var/run/snmpd.pid -a -x $SNMP_COMMUNITY"]