#!/bin/bash
set -e

COMMUNITY="${SNMP_COMMUNITY:-public}"
ENT_OID="${ENTERPRISE_OID:-.1.3.6.1.4.1.99999}"

# Write snmpd.conf from environment variables so community/OID are configurable
cat > /etc/snmp/snmpd.conf <<EOF
# Listen on all interfaces
agentAddress udp:0.0.0.0:161

# Read-only SNMPv2c community
rocommunity ${COMMUNITY} default

# Delegate our private OID tree to the Python pass_persist script
pass_persist ${ENT_OID} /app/snmp/pass_persist.py

# Reduce noise in logs
syslog 5
EOF

echo "[entrypoint] snmpd.conf written (community=${COMMUNITY}, oid=${ENT_OID})"

# Start snmpd in the background
snmpd -f -Lo &
echo "[entrypoint] snmpd started (PID $!)"

# Hand off to the Python application
exec python main.py