##NET-SNMP Daemon This is polinux/snmpd docker image with snmpd daemon running in foreground and based on offcial CentOS-7 and offers ability to provide any argument to snmpd process.

This container is built that any extra parameters provided to docker run will be passed directly to snmpd command. For example, if you run docker run [run options] polinux/snmpd -c FILE you pass -c FILE to snmpd daemon.

ENV Variables

ENV SERVER_IP=127.0.0.1 (IP of the monitoring server)
ENV LOCATION=Office (ocation of the monitored node)
ENV [email protected] (System administrator email)

Usage

Basic

docker run \
-d \
--name snmpd \
-p 161:161 \
polinux/snmpd

Mount custom config , override some options

Using custom config file:
docker run \
-d \
--name snmpd \
-p 161:161 \
-v /my-snmpd.conf:/etc/snmpd/snmpd.conf \
polinux/snmpd \
-c /etc/snmpd/snmod.conf

Using just ENV variables:
docker run \
-d \
--name snmpd \
-p 161:161 \
--env="SERVER_IP=server_ip" \
--env="LOCATION=user1-computer" \
--env="[email protected]" \
polinux/snmpd

SNMPD CMD params

snmpd command can be used with some parameters to define monitoring server address and other parameters. Simple --help output below:

-f (foregroud) used as default in this image

Usage:  snmpd [OPTIONS] [LISTENING ADDRESSES]

Version:  5.7.2
Web:      http://www.net-snmp.org/
Email:    [email protected]

  -a			log addresses
  -A			append to the logfile rather than truncating it
  -c FILE[,...]		read FILE(s) as configuration file(s)
  -C			do not read the default configuration files
		  (config search path: /etc/snmp:/usr/share/snmp:/usr/lib64/snmp:/root/.snmp)
  -d			dump sent and received SNMP packets
  -D[TOKEN[,...]]	turn on debugging output for the given TOKEN(s)
		  (try ALL for extremely verbose output)
		  Don't put space(s) between -D and TOKEN(s).
  -f			do not fork from the shell
  -g GID		change to this numeric gid after opening
		  transport endpoints
  -h, --help		display this usage message
  -H			display configuration file directives understood
  -I [-]INITLIST	list of mib modules to initialize (or not)
		  (run snmpd with -Dmib_init for a list)
  -L <LOGOPTS>		toggle options controlling where to log to
e:           log to standard error
o:           log to standard output
n:           don't log at all
f file:      log to the specified file
s facility:  log to syslog (via the specified facility)

(variants)
[EON] pri:   log to standard error, output or /dev/null for level 'pri' and above
[EON] p1-p2: log to standard error, output or /dev/null for levels 'p1' to 'p2'
[FS] pri token:    log to file/syslog for level 'pri' and above
[FS] p1-p2 token:  log to file/syslog for levels 'p1' to 'p2'
  -m MIBLIST		use MIBLIST instead of the default MIB list
  -M DIRLIST		use DIRLIST as the list of locations to look for MIBs
		  (default $HOME/.snmp/mibs:/usr/share/snmp/mibs)
  -p FILE		store process id in FILE
  -q			print information in a more parsable format
  -r			do not exit if files only accessible to root
		  cannot be opened
  -u UID		change to this uid (numeric or textual) after
		  opening transport endpoints
  -v, --version		display version information
  -V			verbose display
  -x ADDRESS		use ADDRESS as AgentX address
  -X			run as an AgentX subagent rather than as an
		  SNMP master agent

Deprecated options:
  -l FILE		use -Lf <FILE> instead
  -P			use -p instead
  -s			use -Lsd instead
  -S d|i|0-7		use -Ls <facility> instead