Merge branch 'j.vondoemming-master-patch-15113' into 'master'

Update Dockerfile

See merge request !1

Dockerfile

 # This file is a template, and might need editing before it works on your project.
 FROM httpd:alpine
 
-COPY . /usr/local/apache2/htdocs/
-WORKDIR /usr/local/apache2/htdocs/
+COPY . /app
+WORKDIR /app
+
 RUN apk update && apk add git make gcc
+
 RUN make build-renderer
 RUN make build-site
 RUN make deploy-site
 
-RUN apt update && apt install -y build-essential git
-
-# COPY public/ /usr/local/apache2/htdocs/
+RUN cp  /app/public/ /usr/local/apache2/htdocs/
 EXPOSE 80