Refine the health point to return current app version, just for debuging issues (#200)

Caddyfile

@@ -22,7 +22,7 @@ route /files/* {
 }
 
 route /ping {
-  respond "pong"
+	respond "app version: {env.APP_VERSION}"
 }
 
 root * /usr/local/www/aria2

HerokuCaddyfile

@@ -1,5 +1,4 @@
 {
-  debug
 	admin off
 	auto_https off
 }
@@ -28,7 +27,7 @@ route /files/* {
 }
 
 route /ping {
-  respond "pong"
+	respond "app version: {env.APP_VERSION}"
 }
 
 root * /usr/local/www/aria2

SecureCaddyfile

@@ -1,4 +1,3 @@
-
 {$DOMAIN}
 
 basicauth / {
@@ -23,7 +22,7 @@ route /files/* {
 }
 
 route /ping {
-  respond "pong"
+	respond "app version: {env.APP_VERSION}"
 }
 
 root * /usr/local/www/aria2

start.sh

@@ -1,4 +1,7 @@
 #!/bin/bash -eu
+
+export APP_VERSION=$(cat /app/APP_VERSION)
+
 if [ "$PGID" != "0" ]; then
   $(dirname $0)/init.sh chpst -u junv ./forego start
 else