Add steps for dhcp and unbound extends

seqs/snmp.sh

@@ -391,6 +391,86 @@ step_40() {
   exe service snmpd restart
 }
 distroExtendLoc="${toolConfigLoc}/distro"
+
+
+step_42_info() { 
+  echo "Gather dhcp information from a dhcpd lease file"
+  echoinfo "pi-hole lease file not supported"
+}
+step_42_alias() { ALIAS="dhcp"; }
+step_42() {
+  local locExtName="dhcpstats"
+  local locExtUrl="https://github.com/librenms/librenms-agent/raw/master/snmp/dhcp.py"
+  local locExtLoc="${toolConfigLoc}/dhcp.py"
+
+  checkExtend $locExtName
+  [ $? -ne 0 ] && return 0
+
+  exe apt install dhcpd-pools
+  endReturn -o $? "Install dhcpd-pools failed"
+
+  exe wget $locExtUrl -O "${locExtLoc}"
+  endReturn -o $? "Download $locExtName script failed"
+  exe chmod +x "$locExtLoc"
+  
+  echoseq " [I] Create extend for $locExtName"
+  addConf -a "extend $locExtName ${locExtLoc}" "$toolConfig"
+
+  echoseq " [I] Create config for $locExtName"
+  addConf -s "$dhcpExtendConfig" "$dhcpExtendConfigLoc"
+  
+  echo " [W] Adapt config $dhcpExtendConfigLoc manually and restart snmpd"
+}
+dhcpExtendConfigLoc="${toolConfigLoc}/dhcp.json"
+dhcpExtendConfig="{\"leasefile\": \"/var/lib/dhcp/dhcpd.leases\"
+}"
+
+step_44_info() { 
+  echo "Extend unbound stats"
+}
+step_44_alias() { ALIAS="unbound"; }
+step_44() {
+  local locExtName="unbound"
+  local locExtUrl="https://github.com/librenms/librenms-agent/raw/master/snmp/unbound"
+  local locExtLoc="${toolConfigLoc}/unbound"
+
+  checkExtend $locExtName
+  [ $? -ne 0 ] && return 0
+
+  exe wget $locExtUrl -O "${locExtLoc}"
+  endReturn -o $? "Download $locExtName script failed"
+  exe chmod +x "$locExtLoc"
+
+  echoseq " [I] Create extend for $locExtName"
+  addConf -a "extend /usr/bin/sudo $locExtName ${locExtLoc}" "$toolConfig"
+
+  echoseq " [I] Create config for $locExtName"
+  addConf -s "$unboundExtendConfig" "$unboundExtendConfigLoc"
+
+  exe systemctl restart unbound.service
+  exe systemctl restart snmpd.service
+}
+unboundExtendConfigLoc="/etc/unbound/unbound.conf.d/extended-stats.conf"
+unboundExtendConfig=$(cat <<UB_EOF
+# Enable extended statistics
+server:
+    extended-statistics: yes
+    statistics-cumulative: yes
+
+remote-control:
+    control-enable: yes
+    control-interface: 127.0.0.1
+UB_EOF
+)
+
+step_45_info() { echo "Set sudoers file to execute unbount-control"; }
+step_45() {
+  addConf -s "$unboundSudoer" "$unboundSudoerLoc"
+}
+unboundSudoerLoc="/etc/sudoers.d/snmpunbound"
+unboundSudoer="Debian-snmp ALL=(ALL) NOPASSWD: /usr/sbin/unbound-control, ${toolConfigLoc}/unbound"
+
+
 checkExtend() {
   # adding dry run output for clarification
   if [ $DRY -ne 0 ] ; then