mirror of
https://github.com/sdr-enthusiasts/docker-adsb-ultrafeeder.git
synced 2024-12-26 14:22:00 +00:00
Add Wiedehopf's s6wrap improvements and exit traps (#16)
This commit is contained in:
kx1t
GitHub
commit
9e4ed76de9
6 changed files with 73 additions and 70 deletions
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@ -20,6 +20,4 @@ source /scripts/common
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# If not, see <https://www.gnu.org/licenses/>.
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#---------------------------------------------------------------------------------------------
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[[ -f /.CONTAINER_VERSION ]] && s6wrap --quiet --prepend=01-print-container-version --timestamps --args echo "Container Version: $(cat /.CONTAINER_VERSION), build date $(stat -c '%y' /.CONTAINER_VERSION |sed 's|\(.*\)\.[0-9]* \(.*\)|\1 \2|g')" || true
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@ -25,4 +25,4 @@ then
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echo "$UUID" > /run/uuid
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fi
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exit 0
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exit 0
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@ -17,10 +17,12 @@
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# If not, see <https://www.gnu.org/licenses/>.
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#---------------------------------------------------------------------------------------------
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trap 'pkill -P "$$" || true; s6wrap --quiet --timestamps --prepend=mlat-client --args echo "service stopping"; exit 0' SIGTERM SIGINT SIGHUP SIGQUIT
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APPNAME="mlat-client"
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s6wrap=(s6wrap --quiet --timestamps --prepend="${APPNAME}")
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "Started as an s6 service"
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"${s6wrap[@]}" --args echo "Started as an s6 service"
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source /scripts/common
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source /scripts/interpret_ultrafeeder_config
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@ -32,28 +34,28 @@ declare -A pid_array
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if [[ -z "${MLAT_CONFIG}" ]]
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then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "Warning: MLAT_CONFIG not defined - MLAT will be disabled."
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sleep infinity
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"${s6wrap[@]}" --args echo "Warning: MLAT_CONFIG not defined - MLAT will be disabled."
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exec sleep infinity
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fi
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if [[ -z "${MLAT_USER}" ]] && [[ -z "${UUID}" ]]
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then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "ERROR: either UUID or MLAT_USER must be defined - MLAT will be disabled."
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sleep infinity
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"${s6wrap[@]}" --args echo "ERROR: either UUID or MLAT_USER must be defined - MLAT will be disabled."
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exec sleep infinity
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fi
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if [[ -z "$LAT$READSB_LAT" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "ERROR: READSB_LAT or LAT must be defined - MLAT will be disabled."
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sleep infinity
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"${s6wrap[@]}" --args echo "ERROR: READSB_LAT or LAT must be defined - MLAT will be disabled."
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exec sleep infinity
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fi
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if [[ -z "$LONG$READSB_LON" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "ERROR: READSB_LON or LONG must be defined - MLAT will be disabled."
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sleep infinity
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"${s6wrap[@]}" --args echo "ERROR: READSB_LON or LONG must be defined - MLAT will be disabled."
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exec sleep infinity
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fi
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if [[ -z "$ALT$READSB_ALT" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "ERROR: READSB_ALT or ALT must be defined - MLAT will be disabled."
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sleep infinity
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"${s6wrap[@]}" --args echo "ERROR: READSB_ALT or ALT must be defined - MLAT will be disabled."
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exec sleep infinity
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fi
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# MLAT_CONFIG has the following format:
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@ -69,6 +71,21 @@ MLAT_CONFIG="${MLAT_CONFIG#"${MLAT_CONFIG%%[![:space:]]*}"}" # strip leading s
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MLAT_CONFIG="${MLAT_CONFIG//; /;}"
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readarray -td ";" mlat_configs < <(printf '%s' "${MLAT_CONFIG}")
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# wait until readsb is established...
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if ! pgrep readsb >/dev/null; then
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if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
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"${s6wrap[@]}" --args echo "Delaying start of MLAT client(s) until container is established..."
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fi
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while ! pgrep readsb >/dev/null
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do
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sleep 2 & wait $!
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done
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# wait 2 seconds after readsb process exists
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sleep 2 & wait $!
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fi
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# Now loop through the MLAT_CONFIG items and start up an Mlat_client for each of them:
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for instance in "${mlat_configs[@]}"
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do
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@ -79,10 +96,10 @@ do
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# Check if the params array has values for the mandatory elements:
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if [[ -z "${params[0]}" ]] || [[ -z "${params[1]}" ]]
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then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "ERROR -- MLAT_CONFIG is malformed: \"${instance}\". Stopping MLAT execution."
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"${s6wrap[@]}" --args echo "ERROR -- MLAT_CONFIG is malformed: \"${instance}\". Stopping MLAT execution."
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# shellcheck disable=SC2046
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kill $(ps -s $$ -o pid=)
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sleep infinity
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exec sleep infinity
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fi
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# Now process the the arguments
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@ -92,7 +109,7 @@ do
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# If the argument isn't any of the above, then it's an "extra argument"
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unset uuid_arg lat_arg lon_arg alt_arg input_connect_arg return_port_arg extra_args
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for ((i=2; i<${#params[*]}; i++))
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do
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if [[ -n "${params[i]}" ]] && [[ "${params[i]}" =~ ^[0-9]+$ ]]; then
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@ -124,6 +141,8 @@ do
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MLAT_PARAM=(--input-type "${MLAT_INPUT_TYPE:-auto}")
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MLAT_PARAM+=(--server "${params[0]}:${params[1]}")
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servername=${params[0]}
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# add return port:
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[ -n "${return_port_arg}" ] && MLAT_PARAM+=("--results beast,listen,${return_port_arg}") || true
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@ -134,7 +153,7 @@ do
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MLAT_PARAM+=(--user "${MLAT_USER}")
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else
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rnd="${RANDOM}"
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "WARNING: MLAT_USER is not set - using random number \"${rnd}\" as MLAT_USER"
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"${s6wrap[@]}" --args echo "WARNING: MLAT_USER is not set - using random number \"${rnd}\" as MLAT_USER"
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MLAT_PARAM+=(--user "${rnd}")
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fi
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@ -169,11 +188,7 @@ do
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elif [ -n "${UUID}" ]; then
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MLAT_PARAM+=("--uuid ${UUID}")
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else
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# generate a random UUID
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UUID="$(cat /proc/sys/kernel/random/uuid)"
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[[ -z "${UUID}" ]] && UUID="$(printf '00000000-ffff-aaaa-%04x-%012x\n' "$RANDOM" "$(date +%s)")"
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "WARNING: UUID is not defined - using randomized uuid \"${UUID}\""
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MLAT_PARAM+=("--uuid ${UUID}")
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"${s6wrap[@]}" --args echo "WARNING: UUID is not defined, proceeding without UUID"
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fi
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# Now add the extra_args, if any:
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@ -184,27 +199,20 @@ do
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# shellcheck disable=SC2048,SC2086
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execstring="$(echo ${MLAT_CMD} ${MLAT_PARAM[*]} | xargs)"
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# stagger by 1 second so they don't all start at the same time
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sleep 1 & wait $!
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# ------------------------------------------------
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# Ready to launch, but wait until readsb is established...
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if ! pgrep readsb >/dev/null; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "Delaying start of MLAT client(s) until container is established..."
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while ! pgrep readsb >/dev/null
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do
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sleep 2
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done
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fi
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sleep 10 # sleep a bit so everything is well established - starting readsb may take a bit
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# run this Mlat_client instance in the background:
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "starting: ${MLAT_CMD} ${MLAT_PARAM[*]}"
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#shellcheck disable=SC2069,SC2086
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if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
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{ exec s6wrap --quiet --prepend="${APPNAME}][${params[0]}" --timestamps --args ${execstring}; } &
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"${s6wrap[@]}" --prepend="${APPNAME}][${servername}" --args echo "starting: ${MLAT_CMD} ${MLAT_PARAM[*]}"
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"${s6wrap[@]}" --prepend="${APPNAME}][${servername}" --args ${execstring} &
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elif [[ "${LOGLEVEL,,}" == "error" ]]; then
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{ exec s6wrap --quiet --prepend="${APPNAME}][${params[0]}" --timestamps --args ${execstring} 2>&1 >/dev/null; } &
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"${s6wrap[@]}" --ignore-stdout --prepend="${APPNAME}][${servername}" --args ${execstring} &
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elif [[ "${LOGLEVEL,,}" == "none" ]]; then
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{ exec ${execstring} >/dev/null 2>/dev/null; } &
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"${s6wrap[@]}" --ignore-stderr --ignore-stdout --prepend="${APPNAME}][${servername}" --args ${execstring} &
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fi
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# pid_array is indexed by the PID of each mlat_client and contains the MLAT_PARAMs for that instance
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@ -212,7 +220,7 @@ do
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pid_array[$!]="${MLAT_PARAM[*]}"
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done
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sleep 5
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sleep 5 & wait $!
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# All MLAT Clients are up, so set the flag. This flag is read by MLATHUB as a sign that it's
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# safe to start up
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@ -226,26 +234,26 @@ do
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if ! kill -0 "${mlat_pid}" >/dev/null 2>&1
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then
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# it exited - let's restart:
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sleep "${RESTARTTIMER}"
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sleep "${RESTARTTIMER}" & wait $!
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servername="$(awk '{print $4}' <<< "${pid_array[$mlat_pid]}")"
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servername="${servername%%:*}"
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[[ "${LOGLEVEL,,}" != "none" ]] && s6wrap --quiet --prepend="${APPNAME}[${servername}" --timestamps --args echo "MLAT_Client ${servername} exited. Attempting to restart." || true
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[[ "${LOGLEVEL,,}" != "none" ]] && "${s6wrap[@]}" --prepend="${APPNAME}[${servername}" --args echo "MLAT_Client ${servername} exited. Attempting to restart." || true
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# shellcheck disable=SC2086
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execstring="$(echo ${MLAT_CMD} ${pid_array[$mlat_pid]} | xargs)"
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#shellcheck disable=SC2069,SC2086
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if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
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{ exec s6wrap --quiet --prepend="${APPNAME}][${servername}" --timestamps --args ${execstring} 2>&1; } &
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"${s6wrap[@]}" --prepend="${APPNAME}][${servername}" --args ${execstring} &
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elif [[ "${LOGLEVEL,,}" == "error" ]]; then
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{ exec s6wrap --quiet --prepend="${APPNAME}][${servername}" --timestamps --args ${execstring} 2>&1 >/dev/null; } &
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"${s6wrap[@]}" --ignore-stdout --prepend="${APPNAME}][${servername}" --args ${execstring} &
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elif [[ "${LOGLEVEL,,}" == "none" ]]; then
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{ exec ${execstring} >/dev/null 2>/dev/null; } &
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"${s6wrap[@]}" --ignore-stderr --ignore-stdout --prepend="${APPNAME}][${servername}" --args ${execstring} &
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fi
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pid_array[$!]="${pid_array[${mlat_pid}]}"
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unset "pid_array[${mlat_pid}]"
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fi
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done
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sleep 10
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sleep 10 & wait $!
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done
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@ -4,15 +4,15 @@
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APPNAME="mlathub"
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source /scripts/common
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source /scripts/interpret_ultrafeeder_config
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s6wrap=(s6wrap --quiet --timestamps --prepend="${APPNAME}")
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if [[ -z "${MLAT_CONFIG}" ]] && [[ -z "$MLATHUB_NET_CONNECTOR" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "No MLAT servers have been defined in MLAT_CONFIG and no external sources have been defined in MLATHUB_NET_CONNECTOR - no need to start MLATHUB"
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"${s6wrap[@]}" --args echo "No MLAT servers have been defined in MLAT_CONFIG and no external sources have been defined in MLATHUB_NET_CONNECTOR - no need to start MLATHUB"
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sleep infinity
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fi
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if chk_enabled "${MLATHUB_DISABLED}"; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "MLATHUB is disabled."
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"${s6wrap[@]}" --args echo "MLATHUB is disabled."
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sleep infinity
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fi
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@ -60,7 +60,7 @@ done
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if (( mlat_result_sources == 0 ))
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then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "No MLAT servers have been defined in MLAT_CONFIG - no need to start MLATHUB"
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"${s6wrap[@]}" --args echo "No MLAT servers have been defined in MLAT_CONFIG - no need to start MLATHUB"
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sleep infinity
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fi
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@ -110,7 +110,9 @@ MLATHUB_CMD+=("--net-heartbeat=${READSB_NET_HEARTBEAT:-35}")
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if [[ ! -f /run/mlathub_up ]]
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then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "Delaying MLAT hub start until container is established..."
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if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
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"${s6wrap[@]}" --args echo "Delaying MLAT hub start until container is established..."
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fi
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while [[ ! -f /run/mlathub_up ]]
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do
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sleep 2
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@ -118,16 +120,13 @@ then
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fi
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sleep 5 # sleep a bit so everything is well established
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "Starting MLATHUB..."
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"${s6wrap[@]}" --args echo "Starting MLATHUB..."
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# shellcheck disable=SC2086,SC2069
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if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args "${MLATHUB_BIN}" "${MLATHUB_CMD[@]}" $MLATHUB_EXTRA_ARGS 2>&1
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exec "${s6wrap[@]}" --args "${MLATHUB_BIN}" "${MLATHUB_CMD[@]}" $MLATHUB_EXTRA_ARGS
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elif [[ "${LOGLEVEL,,}" == "error" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args "${MLATHUB_BIN}" "${MLATHUB_CMD[@]}" $MLATHUB_EXTRA_ARGS 2>&1 >/dev/null
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exec "${s6wrap[@]}" --ignore-stdout --args "${MLATHUB_BIN}" "${MLATHUB_CMD[@]}" $MLATHUB_EXTRA_ARGS
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elif [[ "${LOGLEVEL,,}" == "none" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args "${MLATHUB_BIN}" "${MLATHUB_CMD[@]}" $MLATHUB_EXTRA_ARGS >/dev/null 2>/dev/null
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exec "${s6wrap[@]}" --ignore-stdtout --ignore-stderr --args "${MLATHUB_BIN}" "${MLATHUB_CMD[@]}" $MLATHUB_EXTRA_ARGS
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fi
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "WARNING: The mlathub instance has exited. Restarting in 10 seconds."
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sleep 10
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@ -8,7 +8,9 @@ if chk_enabled "$PROMETHEUS_ENABLE"; then
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do
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sleep 1
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done
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echo -e "HTTP/1.1 200 OK\nContent-Type: text/plain\n\n$(cat /run/readsb-prometheus.prom)" | ncat -l 9274 > /dev/null 2>&1
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trap "pkill -P $$ || true; s6wrap --timestamps --prepend=prometheus-readsb --quiet --args echo 'service stopping'; exit 0" SIGTERM SIGINT SIGHUP SIGQUIT
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echo -e "HTTP/1.1 200 OK\nContent-Type: text/plain\n\n$(cat /run/readsb-prometheus.prom)" | ncat -l 9274 > /dev/null 2>&1 &
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wait
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else
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sleep infinity
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exec sleep infinity
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fi
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@ -5,7 +5,7 @@ APPNAME="readsb"
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source /scripts/common
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source /scripts/interpret_ultrafeeder_config
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s6wrap=(s6wrap --quiet --timestamps --prepend="${APPNAME}")
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mkdir -p /run/readsb
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@ -65,12 +65,12 @@ if ! chk_enabled "$READSB_NET_SBS_DISABLE_REDUCE"; then
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fi
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if chk_enabled "${READSB_FORWARD_MLAT}"; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "WARNING -- READSB_FORWARD_MLAT has been set! Do not feed the output of this container to any aggregators!"
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"${s6wrap[@]}" --quiet --args echo "WARNING -- READSB_FORWARD_MLAT has been set! Do not feed the output of this container to any aggregators!"
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READSB_CMD+=("--forward-mlat")
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fi
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if chk_enabled "${READSB_FORWARD_MLAT_SBS}"; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "WARNING -- READSB_FORWARD_MLAT_SBS has been set! Do not feed the SBS (BaseStation) output of this container to any aggregators!"
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"${s6wrap[@]}" --quiet --args echo "WARNING -- READSB_FORWARD_MLAT_SBS has been set! Do not feed the SBS (BaseStation) output of this container to any aggregators!"
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READSB_CMD+=("--forward-mlat-sbs")
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fi
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@ -322,14 +322,10 @@ fi
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# shellcheck disable=SC2086,SC2069
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if [[ -z "${LOGLEVEL}" ]] || [[ "${LOGLEVEL,,}" == "verbose" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args "${READSB_BIN}" "${READSB_CMD[@]}" $READSB_EXTRA_ARGS 2>&1
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exec "${s6wrap[@]}" --args "${READSB_BIN}" "${READSB_CMD[@]}" $READSB_EXTRA_ARGS
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elif [[ "${LOGLEVEL,,}" == "error" ]]; then
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args "${READSB_BIN}" "${READSB_CMD[@]}" $READSB_EXTRA_ARGS 2>&1 1>/dev/null
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exec "${s6wrap[@]}" --quiet --ignore-stdout --args "${READSB_BIN}" "${READSB_CMD[@]}" $READSB_EXTRA_ARGS
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elif [[ "${LOGLEVEL,,}" == "none" ]]; then
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"${READSB_BIN}" "${READSB_CMD[@]}" $READSB_EXTRA_ARGS >/dev/null 2>/dev/null
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exec "${s6wrap[@]}" --quiet --ignore-stdout --ignore-stderr --args "${READSB_BIN}" "${READSB_CMD[@]}" $READSB_EXTRA_ARGS
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fi
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s6wrap --quiet --prepend="${APPNAME}" --timestamps --args echo "WARNING: The main readsb instance has exited. Restarting in 10 seconds."
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sleep 10
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