diff --git a/rootfs/etc/s6-overlay/s6-rc.d/generate-prom/run b/rootfs/etc/s6-overlay/s6-rc.d/generate-prom/run
new file mode 100755
index 0000000..1c72f10
--- /dev/null
+++ b/rootfs/etc/s6-overlay/s6-rc.d/generate-prom/run
@@ -0,0 +1,2 @@
+#!/bin/sh
+exec /scripts/generate-prom.sh
diff --git a/rootfs/etc/s6-overlay/s6-rc.d/generate-prom/type b/rootfs/etc/s6-overlay/s6-rc.d/generate-prom/type
new file mode 100644
index 0000000..5883cff
--- /dev/null
+++ b/rootfs/etc/s6-overlay/s6-rc.d/generate-prom/type
@@ -0,0 +1 @@
+longrun
diff --git a/rootfs/etc/s6-overlay/s6-rc.d/user/contents.d/generate-prom b/rootfs/etc/s6-overlay/s6-rc.d/user/contents.d/generate-prom
new file mode 100644
index 0000000..e69de29
diff --git a/rootfs/scripts/generate-prom.sh b/rootfs/scripts/generate-prom.sh
new file mode 100755
index 0000000..3136902
--- /dev/null
+++ b/rootfs/scripts/generate-prom.sh
@@ -0,0 +1,25 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
+# generate prom file for consumption by for example docker-telegraf-adsb
+# currently this only has autogain as the other metrics can be generated in docker-telegraf-adsb
+
+OUT=/run/skyaware978/stats.prom
+TMP=/run/skyaware978/stats.prom.tmp
+
+function generate() {
+    if [[ -f "$AUTOGAIN_CURRENT_VALUE_FILE" ]]; then
+        echo "autogain_current_value=$(cat "$AUTOGAIN_CURRENT_VALUE_FILE")"
+        echo "autogain_max_value=$(cat "$AUTOGAIN_MAX_GAIN_VALUE_FILE")"
+        echo "autogain_min_value=$(cat "$AUTOGAIN_MIN_GAIN_VALUE_FILE")"
+        echo "autogain_pct_strong_messages_max=$AUTOGAIN_PERCENT_STRONG_MESSAGES_MAX"
+        echo "autogain_pct_strong_messages_min=$AUTOGAIN_PERCENT_STRONG_MESSAGES_MIN"
+    fi
+}
+
+while sleep 60; do
+    generate > "$TMP"
+    mv -f "$TMP" "$OUT"
+done
+
+