SNMP Install - Ubuntu

#!/usr/bin/env bash

set -e

SNMP_COMMUNITY="${SNMP_COMMUNITY:-partitio}"
SNMP_CONTACT_NAME="${SNMP_CONTACT_NAME:-partitio}"
SNMP_CONTACT_ADDRESS="${SNMP_CONTACT_ADDRESS:-assistance@partitio.com}"
SNMP_ENABLE_EXTENSIONS="${SNMP_ENABLE_EXTENSIONS:-}"

sudo apt-get update && sudo apt-get install -y curl snmpd
cat << EOF | sudo tee /etc/snmp/snmpd.conf
com2sec readonly  default         ${SNMP_COMMUNITY}

group ReadOnly v2c        readonly
view all    included  .1                               80
access ReadOnly ""      any       noauth    exact  all    none   none

syslocation Rack, Room, Building, City, Country [GPSX,Y]
syscontact ${SNMP_CONTACT_NAME} ${SNMP_CONTACT_ADDRESS}

#Distro Detection
extend .1.3.6.1.4.1.2021.7890.1 distro /usr/bin/distro
EOF

if [[ -n "${SNMP_ENABLE_EXTENSIONS}" ]]; then
  cat << EOF | sudo tee -a /etc/snmp/snmpd.conf
#Hardware Detection
extend .1.3.6.1.4.1.2021.7890.2 hardware '/bin/cat /sys/devices/virtual/dmi/id/product_name'
extend .1.3.6.1.4.1.2021.7890.3 manufacturer '/bin/cat /sys/devices/virtual/dmi/id/sys_vendor'
extend .1.3.6.1.4.1.2021.7890.4 serial '/bin/cat /sys/devices/virtual/dmi/id/product_serial'
EOF
fi

sudo curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro
sudo chmod +x /usr/bin/distro
sudo systemctl restart snmpd

REGISTER_HOSTNAME="$(hostname -I|cut -d' ' -f1)"
SNMP_COMMUNITY="${COMMUNITY:-partitio}"
SNMP_VERSION="${SNMP_VERSION:-v2c}"
LIBRENMS="${LIBRENMS:-192.168.52.117}"

echo "Registering to LibreNMS($LIBRENMS) $REGISTER_HOSTNAME Community: $SNMP_COMMUNITY VERSION: $SNMP_VERSION"

curl --header "Content-Type: application/json" \
   --header "X-Auth-Token: a2096d515787040a9cacab57e8cded18" \
   --request POST \
   --data "{\"hostname\":\"$REGISTER_HOSTNAME\",\"version\":\"$SNMP_VERSION\",\"community\":\"$SNMP_COMMUNITY\"}" \
   http://$LIBRENMS/api/v0/devices