diff options
Diffstat (limited to 'snmptrap/snmptrapd.sh')
| -rwxr-xr-x[-rw-r--r--] | snmptrap/snmptrapd.sh | 213 |
1 files changed, 200 insertions, 13 deletions
diff --git a/snmptrap/snmptrapd.sh b/snmptrap/snmptrapd.sh index e8ef93e..57fd1b4 100644..100755 --- a/snmptrap/snmptrapd.sh +++ b/snmptrap/snmptrapd.sh @@ -21,18 +21,28 @@ # ECOMP is a trademark and service mark of AT&T Intellectual Property. # -# get to where we are supposed to be for startup -cd /opt/app/snmptrap/bin +# basics +current_cmd=`basename $0` +current_module=`echo $current_cmd | cut -d"." -f1` + +# FMDL:: need to pick up these values from json config, but it isn't +# present at startup +base_dir=/opt/app/snmptrap +pid_file=${base_dir}/tmp/${current_module}.py.pid +start_dir=${base_dir}/bin # include path to 3.6+ version of python that has required dependencies included export PATH=/opt/app/python-3.6.1/bin:$PATH -# expand search for python modules to include ./mod in runtime dir -export PYTHONPATH=./mod:./:$PYTHONPATH - # set location of SSL certificates export REQUESTS_CA_BUNDLE=/etc/ssl/certs/ca-bundle.crt +# get to where we are supposed to be for startup +cd /opt/app/snmptrap/bin + +# expand search for python modules to include ./mod in current/runtime dir +export PYTHONPATH=./mod:./:$PYTHONPATH + # PYTHONUNBUFFERED: # set PYTHONUNBUFFERED to a non-empty string to avoid output buffering; # comment out for runtime environments/better performance! @@ -42,14 +52,191 @@ export REQUESTS_CA_BUNDLE=/etc/ssl/certs/ca-bundle.crt # export CBS_SIM_JSON=../etc/snmptrapd.json -# want tracing? Use this: -# python -m trace --trackcalls snmptrapd.py -v +# # # # # # # # # # +# log_msg - log messages to stdout in standard manner +# # # # # # # # # # +log_msg() +{ + msg=$* + + printf "`date +%Y-%m-%dT%H:%M:%S,%N | cut -c1-23` ${msg}" +} + +# # # # # # # # # # +# Start the service +# # # # # # # # # # +start_service() +{ + # Hints for startup modifications: + # _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ + # standard startup? Use this: + cmd="python ./snmptrapd.py &" + # want tracing? Use this: + # "python -m trace --trackcalls snmptrapd.py &" + # unbuffered io for logs? Use this: + # "python -u snmptrapd.py &" + + cd ${start_dir} + + # check for process already running + if [ -r ${pid_file} ] + then + pid=$(cat ${pid_file}) + if ps -p ${pid} > /dev/null + then + printf "${current_module} already running - PID ${pid}\n" + return 0 + fi + fi + + # FMDL:: do this in snmptrapd.py at startup + # roll log if present at startup + # if [ -f ${LOGFILE} ] + # then + # mv -f ${LOGFILE} ${LOGFILE}.`date +%h-%m-%Y_%H:%M:%S` + # fi + + log_msg "Starting ${current_module}... " + eval ${cmd} + return_code=$? + + if [ ${return_code} -eq 0 ] + then + log_msg "Started.\n" + else + log_msg "\nERROR! Unable to start ${current_module}. Check logs for details.\n" + fi + + return ${return_code} + +} + +# # # # # # # # # # +# Stop the service +# # # # # # # # # # +stop_service() +{ + if [ ! -r ${pid_file} ] + then + log_msg "PID file ${pid_file} does not exist or not readable - unable to stop specific instance of ${current_module}.\n" + log_msg "Diagnose further at command line as needed.\n" + return_code=1 + else + pid=$(cat ${pid_file}) + log_msg "Stopping ${current_module} PID ${pid}...\n" + kill ${pid} + if [ $? -ne 0 ] + then + log_msg "\nERROR while trying to terminate ${current_module} PID ${pid} (is it not running or owned by another userID?)" + log_msg "\nDiagnose further at command line as needed." + return_code=$? + if [ -w ${pid_file} ] + then + rm -f ${pid_file} + fi + else + log_msg "Stopped\n" + if [ -w ${pid_file} ] + then + rm -f ${pid_file} + fi + return_code=0 + fi + fi + + return ${return_code} +} + +# # # # # # # # # # # # # # # +# Check status of the service +# # # # # # # # # # # # # # # +status_service() +{ + if [ -r ${pid_file} ] + then + pid=$(cat ${pid_file}) + pgrep -a python | grep ${current_module} | grep "^${pid}" > /dev/null + return_code=$? + + if [ ${return_code} -eq 0 ] + then + log_msg "Status: ${current_module} running\n" + ps -p ${pid} -f | grep -v PID + return_code=0 + else + log_msg "Status: ERROR! ${current_module} not running.\n" + return_code=1 + fi + else + log_msg "PID file ${pid_file} does not exist or not readable - unable to check status of ${current_module}\n" + log_msg "Diagnose further at command line as needed.\n" + return 1 + fi + + return ${return_code} +} + +# # # # # # # # # # # # # # # # # +# Signal process to reload config +# # # # # # # # # # # # # # # # # +reload_cfg() +{ + if [ -r ${pid_file} ] + then + pid=$(cat ${pid_file}) + ps -p ${pid} > /dev/null 2>&1 + ret=$? + if [ ${ret} ] + then + log_msg "Signaling ${current_module} PID ${pid} to request/read updated configs...\n" + kill -USR1 ${pid} + return_code=$? + if [ ${return_code} -eq 0 ] + then + log_msg "...Signal complete.\n" + else + log_msg "\nERROR signaling ${current_module} - diagnose further at the command line.\n" + fi + else + log_msg "\nERROR: ${current_module} PID ${pid} does not appear to be running.\n" + return_code=1 + fi + else + log_msg "\nERROR: ${current_module} pid_file ${pid_file} does not exist - unable to signal for config re-read.\n" + return_code=1 + fi -# want verbose logging? Use this: -# python snmptrapd.py -v + return ${return_code} +} -# standard startup? Use this: -# python snmptrapd.py +# # # # # # # # # # # # # +# M A I N +# # # # # # # # # # # # # -# unbuffered io for logs and verbose logging? Use this: -python -u snmptrapd.py -v +case "$1" in + "start") + start_service + exit $? + ;; + "stop") + stop_service + exit $? + ;; + "restart") + stop_service + sleep 1 + start_service + exit $? + ;; + "status") + status_service + exit $? + ;; + "reloadCfg") + reload_cfg + exit $? + ;; + *) + printf "\nUsage: ${current_cmd} {start|stop|restart|status|rollLog|reloadCfg}\n" + exit 1 + esac |