Changed how docker container runs. Runtime env is now injected as base64 encoded data URI.

Stouffi · Stouffi · commit 267632152ff6 · 2020-02-29T13:56:06.000+01:00
diff --git a/Dockerfile b/Dockerfile
@@ -1,5 +1,7 @@
 FROM nginx:stable-alpine
 
+RUN apk add --update coreutils
+
 RUN apk add --no-cache nodejs yarn
 
 RUN yarn global add @beam-australia/react-env
diff --git a/entrypoint.sh b/entrypoint.sh
@@ -6,17 +6,21 @@ echo "Serializing environment:"
 
 react-env --dest .
 
-# save content of env.js as it will be removed.
-subs=$(cat env.js)
+envs=$(cat env.js)
 
-rm env.js
+echo "$envs"
+
+# save content of env.js as it will be removed.
+subs="data:text/javascript;base64,$(base64 -w 0 env.js)"
 
 echo "$subs"
 
+rm env.js
+
 # cat /var/www/index.html
 
 # Substitute the script with src by an equivalent inline script.
-sed -i "s~<script src=\"/env.js\"></script>~<script>${subs}</script>~" /var/www/index.html
+sed -i "s|<script src=\"/env.js\"></script>|<script src=\"${subs}\"></script>|" /var/www/index.html
 
 # echo 'After substitution'
 # cat /var/www/index.html
diff --git a/src/index.html b/src/index.html
@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <title>TypeScript React Starter</title>
-    <script src="env.js"></script>
+    <script src="/env.js"></script>
   </head>
   <body></body>
 </html>
