add aria2 exporter

Dockerfile

@@ -20,6 +20,8 @@ RUN apk add --no-cache \
         nginx \
         su-exec
 
+COPY --from=sbruder/aria2_exporter /aria2_exporter /aria2_exporter
+
 COPY --from=webui /webui-aria2/docs /srv/www/webui
 COPY --from=webui /AriaNg/dist /srv/www/webui/ng
 

entrypoint.sh

@@ -5,6 +5,8 @@ if ! [ -z $NGINX_LISTEN_SOCKET ]; then
 fi
 nginx
 
+ARIA2_URL=http://localhost:6800 /aria2_exporter &
+
 touch /data/torrents
 chown $UID /data/torrents
 

nginx.conf

@@ -19,4 +19,8 @@ server {
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "Upgrade";
     }
+
+    location /metrics {
+        proxy_pass http://localhost:9578/metrics;
+    }
 }