From 461a0eeea3a8a6b3783ef17c50286e44f9dc4f3e Mon Sep 17 00:00:00 2001
From: Michael Krieger <phyre@phyre.me>
Date: Thu, 16 Dec 2021 15:52:30 -0500
Subject: [PATCH] Permit the healthcheck to work if a BASE_PATH is set

You can set the environment variable BASE_PATH=statping so that https://yoursite.domain:1234/statping/ is how the app is accessed.  Note that a forward-slash is not used (which would otherwise allow just the variable to be dropped in). In order to do that, the healthcheck, which does not obey BASE_PATH, must be disabled. This should make it continue to work.
---
 Dockerfile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index ca503f78..18aac4fc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -60,9 +60,10 @@ ENV IS_DOCKER=true
 ENV SASS=/usr/local/bin/sassc
 ENV STATPING_DIR=/app
 ENV PORT=8080
+ENV BASE_PATH=""
 
 EXPOSE $PORT
 
-HEALTHCHECK --interval=60s --timeout=10s --retries=3 CMD curl -s "http://localhost:$PORT/health" | jq -r -e ".online==true"
+HEALTHCHECK --interval=60s --timeout=10s --retries=3 CMD if [ -z "$BASE_PATH" ]; then HEALTHPATH="/health"; else HEALTHPATH="/$BASE_PATH/health" ; fi && curl -s "http://localhost:80$HEALTHPATH" | jq -r -e ".online==true"
 
 CMD statping --port $PORT