Stats refresh

haproxy/Readme.md

@@ -75,6 +75,9 @@ that served the page changes, as HAProxy switches between them.
 The stats page can be accessed at http://localhost:1936 where you have to log in
 using the `STATS_AUTH` authentication details (default `admin:admin`).
 
+You may want to set `STATS_REFRESH` option to let the statistics page auto update 
+i.e `STATS_REFRESH="5s"` to update every five seconds (default `0s`: no refresh)
+
 Note that it may take **up to one minute** until backends are plugged-in due to the
 minimum possible `DNS_TTL`.
 
@@ -129,6 +132,7 @@ either when running the container or in a `docker-compose.yml` file.
 
   * `STATS_PORT` The port to bind statistics to - default `1936`
   * `STATS_AUTH` The authentication details (written as `user:password` for the statistics page - default `admin:admin`
+  * `STATS_REFRESH` Refresh timing for the statistics page - default `0s` (no refresh)
   * `FRONTEND_NAME` The label of the frontend - default `http-frontend`
   * `FRONTEND_PORT` The port to bind the frontend to - default `5000`
   * `FRONTEND_MODE` Frontend mode - default `http` or `BACKENDS_MODE` if declared

haproxy/docker-entrypoint.sh

@@ -54,6 +54,7 @@ if ! test -e /usr/local/etc/haproxy/haproxy.cfg; then
     if [ -n "$SERVICE_NAMES" ]; then echo "export SERVICE_NAMES=\"$SERVICE_NAMES\""  >> /etc/environment; fi
     if [ -n "$STATS_AUTH" ]; then echo "export STATS_AUTH=\"$STATS_AUTH\""  >> /etc/environment; fi
     if [ -n "$STATS_PORT" ]; then echo "export STATS_PORT=\"$STATS_PORT\""  >> /etc/environment; fi
+    if [ -n "$STATS_REFRESH" ]; then echo "export STATS_REFRESH=\"$STATS_REFRESH\""  >> /etc/environment; fi
     if [ -n "$TIMEOUT_CLIENT" ]; then echo "export TIMEOUT_CLIENT=\"$TIMEOUT_CLIENT\""  >> /etc/environment; fi
     if [ -n "$TIMEOUT_CONNECT" ]; then echo "export TIMEOUT_CONNECT=\"$TIMEOUT_CONNECT\""  >> /etc/environment; fi
     if [ -n "$TIMEOUT_SERVER" ]; then echo "export TIMEOUT_SERVER=\"$TIMEOUT_SERVER\""  >> /etc/environment; fi

haproxy/src/configure.py

@@ -20,6 +20,7 @@
 PROXY_PROTOCOL_ENABLED = (os.environ.get('PROXY_PROTOCOL_ENABLED', 'false').lower() == "true")
 STATS_PORT = os.environ.get('STATS_PORT', '1936')
 STATS_AUTH = os.environ.get('STATS_AUTH', 'admin:admin')
+STATS_REFRESH = os.environ.get('STATS_REFRESH', '0s')
 BACKENDS = os.environ.get('BACKENDS', '').split(' ')
 BACKENDS_PORT = os.environ.get('BACKENDS_PORT', '80')
 BACKENDS_MODE = os.environ.get('BACKENDS_MODE', FRONTEND_MODE)
@@ -44,6 +45,7 @@
     stats uri /
     stats hide-version
     stats auth $auth
+    stats refresh $refresh
 """)
 
 frontend_conf = Template("""
@@ -235,7 +237,9 @@
 
     configuration.write(
         listen_conf.substitute(
-            port=STATS_PORT, auth=STATS_AUTH
+            port=STATS_PORT, 
+            auth=STATS_AUTH, 
+            refresh=STATS_REFRESH
         )
     )