From 666df5fc3b64c6cc9f6fc03fed46a441d7fcd315 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <me@liz.coffee>
Date: Sat, 13 Dec 2025 00:50:07 -0800
Subject: Add entrypoint which replaces static with prod url

---
 Dockerfile           | 10 +++++++++-
 docker-entrypoint.sh | 21 +++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 docker-entrypoint.sh

diff --git a/Dockerfile b/Dockerfile
index f993163..ffc3d7c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,18 @@
-FROM nginx:alpine as adelie
+FROM nginx:alpine
 
+# Copy static assets
 COPY static/ /usr/share/nginx/html/
 
+# Copy nginx configuration
 COPY nginx.conf /etc/nginx/nginx.conf
 
+# Copy entrypoint script
+COPY docker-entrypoint.sh /usr/local/bin/
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+
 EXPOSE 80
 
 HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
   CMD wget --quiet --tries=1 --spider http://localhost/ || exit 1
+
+ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
new file mode 100644
index 0000000..55e2b6c
--- /dev/null
+++ b/docker-entrypoint.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+set -e
+
+# If HOST is set, replace /static/ URLs in CSS and JS files
+if [ ! -z "$HOST" ]; then
+  # Escape special characters for sed
+  ESCAPED_HOST=$(echo "$HOST" | sed 's/[\/&]/\\&/g')
+
+  # Replace /static/ paths in all CSS files
+  find /usr/share/nginx/html -name "*.css" -type f -exec sed -i "s|/static/|${ESCAPED_HOST}/static/|g" {} \;
+
+  # Replace /static/ paths in all JS files
+  find /usr/share/nginx/html -name "*.js" -type f -exec sed -i "s|/static/|${ESCAPED_HOST}/static/|g" {} \;
+
+  echo "✓ Updated static URLs to use HOST: $HOST"
+else
+  echo "✓ Serving static assets from /static/ (local, no HOST set)"
+fi
+
+# Start nginx in foreground
+exec nginx -g "daemon off;"
-- 
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