Update piaware container

Adding a dockerfile and a new services run script.  This adds a single command line argument to Dump1090, the "--gnss" argument which outputs geometric altitude vs. barometric altitude.

piaware/Dockerfile

@@ -0,0 +1,9 @@
+FROM mikenye/piaware:latest
+
+ADD run /etc/services.d/dump1090/
+
+EXPOSE 80/tcp 30003/tcp 30005/tcp 30105/tcp 30978/tcp 30979/tcp
+
+ENTRYPOINT [ "/init" ]
+
+HEALTHCHECK --start-period=7200s --interval=600s CMD /scripts/healthcheck.sh

piaware/run

@@ -0,0 +1,51 @@
+#!/usr/bin/with-contenv bash
+# shellcheck shell=bash
+set -eo pipefail
+
+mkdir -p /run/dump1090-fa
+
+DUMP1090_BIN="/usr/local/bin/dump1090"
+
+# Global settings
+DUMP1090_CMD=("--quiet")
+DUMP1090_CMD+=("--lat" "$LAT")
+DUMP1090_CMD+=("--lon" "$LONG")
+DUMP1090_CMD+=("--net")
+DUMP1090_CMD+=("--fix")
+DUMP1090_CMD+=("--gnss")
+DUMP1090_CMD+=("--json-location-accuracy" "2")
+DUMP1090_CMD+=("--write-json" "/run/dump1090-fa")
+DUMP1090_CMD+=("--net-bind-address" "0.0.0.0")
+
+# Handle "--modeac"
+if [[ "$ALLOW_MODEAC" == "yes" ]]; then
+ DUMP1090_CMD+=("--modeac")
+fi
+
+# If a BEASTHOST is specified
+if [[ -n "$BEASTHOST" ]]; then
+ DUMP1090_CMD+=("--net-only")
+
+# Default - rtlsdr mode
+else
+ DUMP1090_CMD+=("--device-type" "rtlsdr")
+
+ if [[ -n "$DUMP1090_DEVICE" ]]; then
+ DUMP1090_CMD+=("--device" "$DUMP1090_DEVICE")
+ fi
+
+ if [[ -n "$RTLSDR_PPM" ]]; then
+ DUMP1090_CMD+=("--ppm" "$RTLSDR_PPM")
+ fi
+
+ if [[ -n "$RTLSDR_GAIN" ]]; then
+ DUMP1090_CMD+=("--gain" "$RTLSDR_GAIN")
+ fi
+
+fi
+
+# shellcheck disable=SC2016
+"${DUMP1090_BIN}" "${DUMP1090_CMD[@]}" \
+ 2>&1 | stdbuf -o0 awk '{print "[dump1090] " strftime("%Y/%m/%d %H:%M:%S", systime()) " " $0}'
+
+sleep 5