fix heredoc literal

search/Dockerfile

@@ -15,12 +15,19 @@ WORKDIR /usr/share/nginx/html
 
 COPY --from=build /app/dist /usr/share/nginx/html
 # below hack only seems to work if the container isn't built with corresponding vite variable
-COPY <<EOF /docker-entrypoint.d/99-insert.sh
-#!/bin/sh 
+
+COPY <<'EOF' /docker-entrypoint.d/01-insert-window-variable.sh
+#!/bin/sh
+
+set -eu
+
 if [ -n "$API_HOST" ]; then
-  echo "window.API_HOST = '$API_HOST';"
+  echo API_HOST variable found
+  echo "window.API_HOST='$API_HOST';" >> /usr/share/nginx/html/env.js
 fi
 EOF
 
+RUN chmod +x /docker-entrypoint.d/01-insert-window-variable.sh
+
 EXPOSE 80
 

search/README.md

@@ -4,4 +4,11 @@ Build with vite env's and run with docker run / compose
 
 If you want to configure API_HOST at runtime, build without vite envs
 
-`docker run -p 8080:80 --env API_HOST="localhost:1234" nginx-test`
+`docker run -p 8080:80 --env API_HOST="localhost:1234" nginx-test`
+
+Alternatively you can mount env.js as a docker volume under `/usr/share/nginx/html/env.js`
+
+
+``` env.js
+window.API_HOST=http://localhost:4321;"
+```

search/public/env.js

@@ -1 +1,2 @@
-// add window objects here
+// add window variables here
+