mirror of
https://github.com/sdr-enthusiasts/docker-adsb-ultrafeeder.git
synced 2024-12-26 14:22:00 +00:00
210 lines
8.3 KiB
Text
210 lines
8.3 KiB
Text
#!/usr/bin/with-contenv bash
|
|
# shellcheck shell=bash disable=SC1091,SC2015,SC2016
|
|
|
|
source /scripts/common
|
|
|
|
#---------------------------------------------------------------------------------------------
|
|
# Copyright (C) 2023, Ramon F. Kolb (kx1t)
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU General Public License as published by the
|
|
# Free Software Foundation, either version 3 of the License, or (at your option)
|
|
# any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along with this program.
|
|
# If not, see <https://www.gnu.org/licenses/>.
|
|
#---------------------------------------------------------------------------------------------
|
|
|
|
APPNAME="mlat-client"
|
|
echo "[$(date)][${APPNAME}] Started as an s6 service"
|
|
|
|
MLAT_CMD="/usr/bin/mlat-client"
|
|
|
|
RESTARTTIMER=15
|
|
declare -A pid_array
|
|
|
|
if [[ -z "${MLAT_CONFIG}" ]]
|
|
then
|
|
echo "[$(date)][${APPNAME}] Warning: MLAT_CONFIG not defined - MLAT will be disabled."
|
|
sleep infinity
|
|
fi
|
|
|
|
if [[ -z "${MLAT_USER}" ]] && [[ -z "${UUID}" ]]
|
|
then
|
|
echo "[$(date)][${APPNAME}] ERROR: either UUID or MLAT_USER must be defined - MLAT will be disabled."
|
|
sleep infinity
|
|
fi
|
|
|
|
if [[ -z "$LAT$READSB_LAT" ]]; then
|
|
echo "[$(date)][${APPNAME}] ERROR: READSB_LAT or LAT must be defined - MLAT will be disabled."
|
|
sleep infinity
|
|
fi
|
|
|
|
if [[ -z "$LONG$READSB_LON" ]]; then
|
|
echo "[$(date)][${APPNAME}] ERROR: READSB_LON or LONG must be defined - MLAT will be disabled."
|
|
sleep infinity
|
|
fi
|
|
if [[ -z "$ALT$READSB_ALT" ]]; then
|
|
echo "[$(date)][${APPNAME}] ERROR: READSB_ALT or ALT must be defined - MLAT will be disabled."
|
|
sleep infinity
|
|
fi
|
|
|
|
# MLAT_CONFIG has the following format:
|
|
# MLAT_CONFIG=mlatserver_1,mlatserver_port_1,x1,y1,z1;mlatserver_2,mlatserver_port_2,x2,y2,z2 etc
|
|
# where x1,y1,z1; x22,y2,z2; etc are optional and are interpreted as follows:
|
|
# if it's a number, we'll assume it's a port number for return messages
|
|
# if it starts with 'uuid=', it's a UUID number for that instance
|
|
# anything else will be appended as extra parameter(s) to the mlat-client command line
|
|
|
|
# parse MLAT_CONFIG string into mlat_configs array
|
|
readarray -td ";" mlat_configs < <(printf '%s' "${MLAT_CONFIG// /}")
|
|
|
|
# Now loop through the MLAT_CONFIG items and start up an Mlat_client for each of them:
|
|
for instance in "${mlat_configs[@]}"
|
|
do
|
|
[[ -z "${instance}" ]] && continue || true
|
|
# put individual params into the $params array:
|
|
readarray -td "," params < <(printf '%s' "${instance}")
|
|
|
|
uuid_arg=false
|
|
extra_args=""
|
|
|
|
# Check if the params array has values for the mandatory elements:
|
|
if [[ -z "${params[0]}" ]] || [[ -z "${params[1]}" ]]
|
|
then
|
|
echo "[$(date)][${APPNAME}] ERROR -- MLAT_CONFIG is malformed: \"${instance}\". Stopping MLAT execution."
|
|
# shellcheck disable=SC2046
|
|
kill $(ps -s $$ -o pid=)
|
|
sleep infinity
|
|
fi
|
|
|
|
# ------------------------------------------------
|
|
# Build the MLAT parameter string:
|
|
MLAT_PARAM=(--input-type "${MLAT_INPUT_TYPE}")
|
|
MLAT_PARAM+=(--input-connect localhost:30005)
|
|
MLAT_PARAM+=(--server "${params[0]}:${params[1]}")
|
|
|
|
if [ -n "${LAT}" ]; then
|
|
MLAT_PARAM+=(--lat "${LAT}")
|
|
elif [ -n "${READSB_LAT}" ]; then
|
|
MLAT_PARAM+=(--lat "${READSB_LAT}")
|
|
fi
|
|
|
|
if [ -n "${LONG}" ]; then
|
|
MLAT_PARAM+=(--lon "${LONG}")
|
|
elif [ -n "${READSB_LON}" ]; then
|
|
MLAT_PARAM+=(--lon "${READSB_LON}")
|
|
fi
|
|
|
|
if [ -n "${ALT}" ]; then
|
|
MLAT_PARAM+=(--alt "${ALT}")
|
|
elif [ -n "${READSB_ALT}" ]; then
|
|
MLAT_PARAM+=(--alt "${READSB_ALT}")
|
|
fi
|
|
|
|
if [[ -n "${MLAT_USER}" ]]; then
|
|
MLAT_PARAM+=(--user "${MLAT_USER}")
|
|
else
|
|
rnd="${RANDOM}"
|
|
echo "[$(date)][${APPNAME}] WARNING: MLAT_USER is not set - using random number \"${rnd}\" as MLAT_USER"
|
|
MLAT_PARAM+=(--user "${rnd}")
|
|
fi
|
|
|
|
# Now process the rest of the arguments
|
|
# The order doesn't matter, we'll do pattern matching:
|
|
# If the argument is a number, then it must be the beast_results port
|
|
# If the argument starts with "uuid=", then it must be a UUID
|
|
# If the argument isn't any of the above, then it's an "extra argument"
|
|
|
|
for ((i=2; i<${#params[*]}; i++))
|
|
do
|
|
if [[ -n "${params[i]}" ]] && [[ "${params[i]}" =~ ^[0-9]+$ ]]; then
|
|
# It's a number so it must be the return port
|
|
MLAT_PARAM+=("--results beast,listen,${params[i]}")
|
|
|
|
elif header="${params[i]:0:5}" && [[ "${header,,}" == "uuid=" ]]; then
|
|
# It's a UUID
|
|
MLAT_PARAM+=("--uuid ${params[i]:5}")
|
|
uuid_arg=true
|
|
|
|
else
|
|
# It's an Extra Args string
|
|
extra_args="$extra_args ${params[i]}"
|
|
|
|
fi
|
|
done
|
|
# If no UUID was set in the argument strings, check if we can use the generic UUID parameter
|
|
if [[ $uuid_arg == false ]] && [[ -n "${UUID}" ]]; then
|
|
MLAT_PARAM+=("--uuid ${UUID}")
|
|
fi
|
|
# Now add the extra_args, if any:
|
|
[[ -n "${extra_args}" ]] && MLAT_PARAM+=("${extra_args}") || true
|
|
|
|
# ------------------------------------------------
|
|
# Create the command exec string:
|
|
# shellcheck disable=SC2048,SC2086
|
|
execstring="$(echo ${MLAT_CMD} ${MLAT_PARAM[*]} | xargs)"
|
|
|
|
# ------------------------------------------------
|
|
# Ready to launch, but wait until readsb is established...
|
|
if ! pgrep readsb >/dev/null; then
|
|
echo "[$(date)][$APPNAME] Delaying start of MLAT client(s) until container is established..."
|
|
while ! pgrep readsb >/dev/null
|
|
do
|
|
sleep 2
|
|
done
|
|
fi
|
|
sleep 10 # sleep a bit so everything is well established - starting readsb may take a bit
|
|
|
|
# run this Mlat_client instance in the background:
|
|
echo "[$(date)][${APPNAME}] starting: ${MLAT_CMD} ${MLAT_PARAM[*]}"
|
|
|
|
if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
|
|
{ exec ${execstring} 2>&1 | stdbuf -o0 awk -v app="${APPNAME}" -v inst="${params[0]}" '{print "[" strftime("%Y/%m/%d %H:%M:%S", systime()) "][" app "][" inst "] " $0}'; } &
|
|
elif [[ "${LOGLEVEL,,}" == "error" ]]; then
|
|
{ exec ${execstring} 2>&1 >/dev/null | stdbuf -o0 awk -v app="${APPNAME}" -v inst="${params[0]}" '{print "[" strftime("%Y/%m/%d %H:%M:%S", systime()) "][" app "][" inst "] " $0}'; } &
|
|
elif [[ "${LOGLEVEL,,}" == "none" ]]; then
|
|
{ exec ${execstring} >/dev/null 2>/dev/null; } &
|
|
fi
|
|
|
|
# pid_array is indexed by the PID of each mlat_client and contains the MLAT_PARAMs for that instance
|
|
# This is done so we can monitor them and restart them if needed
|
|
pid_array[$!]="${MLAT_PARAM[*]}"
|
|
sleep 5
|
|
done
|
|
|
|
# All MLAT Clients are up, so set the flag. This flag is read by MLATHUB as a sign that it's
|
|
# safe to start up
|
|
touch /run/mlathub_up
|
|
|
|
# Now iterate over all MLAT-client instances and check if they are still running:
|
|
while true
|
|
do
|
|
for mlat_pid in "${!pid_array[@]}"
|
|
do
|
|
if ! kill -0 "${mlat_pid}" >/dev/null 2>&1
|
|
then
|
|
# it exited - let's restart:
|
|
sleep "${RESTARTTIMER}"
|
|
[[ "${LOGLEVEL,,}" != "none" ]] && echo "[$(date)][${APPNAME}] MLAT_Client $(awk '{print $6}' <<< "${pid_array[$mlat_pid]}") exited. Attempting to restart." || true
|
|
# shellcheck disable=SC2086
|
|
execstring="$(echo ${MLAT_CMD} ${pid_array[$mlat_pid]} | xargs)"
|
|
|
|
if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
|
|
{ exec ${execstring} 2>&1 | stdbuf -o0 awk -v app="${APPNAME}" -v inst="${params[0]}" '{print "[" strftime("%Y/%m/%d %H:%M:%S", systime()) "][" app "][" inst "] " $0}'; } &
|
|
elif [[ "${LOGLEVEL,,}" == "error" ]]; then
|
|
{ exec ${execstring} 2>&1 >/dev/null | stdbuf -o0 awk -v app="${APPNAME}" -v inst="${params[0]}" '{print "[" strftime("%Y/%m/%d %H:%M:%S", systime()) "][" app "][" inst "] " $0}'; } &
|
|
elif [[ "${LOGLEVEL,,}" == "none" ]]; then
|
|
{ exec ${execstring} >/dev/null 2>/dev/null; } &
|
|
fi
|
|
|
|
pid_array[$!]="${pid_array[${mlat_pid}]}"
|
|
unset "pid_array[${mlat_pid}]"
|
|
fi
|
|
done
|
|
sleep 10
|
|
done
|