Copy from local to assist with caching

Dockerfile

@@ -11,7 +11,8 @@ ENV RAILS_ENV="production"
 ENV NODE_ENV="production"
 
 # Install build dependencies
-RUN apk add --no-cache whois nodejs yarn ca-certificates git bash \
+RUN --mount=cache,target=/etc/apk/cache,sharing=locked \
+  apk add whois nodejs yarn ca-certificates git bash \
   gcc g++ make libc-dev file sed \
   imagemagick protobuf-dev libpq ffmpeg icu-dev libidn-dev yaml-dev \
   readline-dev postgresql-dev curl tini python3 shared-mime-info && \
@@ -35,10 +36,14 @@ ARG MASTO_VERSION=unknown
 
 # Install mastodon
 USER mastodon
-RUN git clone -vvv -b ${GIT_BRANCH} ${GIT_REPOSITORY} /opt/mastodon && \
-  rm -rf /opt/mastodon/.git
+COPY ../mastodon/* /opt/mastodon/
+RUN rm -rf /opt/mastodon/.git
+
+USER root
+RUN apk -U upgrade
 
 # Install dependencies
+USER mastodon
 WORKDIR /opt/mastodon
 RUN mkdir -p /opt/mastodon/.config/yarn/global && \
   touch /opt/mastodon/.config/yarn/global/.yarnclean && \
@@ -55,4 +60,9 @@ RUN OTP_SECRET=precompile_placeholder SECRET_KEY_BASE=precompile_placeholder \
 COPY root/ /
 COPY sounds/ /opt/mastodon/public/sounds/
 
+# Final ENV setup
+ENV RAILS_SERVE_STATIC_FILES="false"
+ENV RAILS_ENV="production"
+ENV NODE_ENV="production"
+
 ENTRYPOINT ["/sbin/tini", "--"]