v0.1.5: Fix ENV syntax in website Dockerfile

Dockerfile.website

@@ -12,7 +12,6 @@ RUN node build-blog.js
 
 FROM nginx:alpine
 COPY --from=version /tmp/version.txt /tmp/version.txt
-ENV VERSION=$(cat /tmp/version.txt)
 
 COPY --from=builder /app/www/ /usr/share/nginx/html/
 COPY docker-entrypoint.d/ /docker-entrypoint.d/

docker-entrypoint.d/30-envsubst.sh

@@ -1,6 +1,9 @@
 #!/bin/sh
 set -e
 
+VERSION=$(cat /tmp/version.txt)
+export VERSION
+
 # Run envsubst on index.html
 if [ -f /usr/share/nginx/html/index.html ]; then
     envsubst < /usr/share/nginx/html/index.html > /usr/share/nginx/html/index.html.tmp