## Buildstage ##
FROM ghcr.io/linuxserver/baseimage-alpine:3.12 as buildstage

# The verison of oauth2-proxy to use
ARG PROXY_VERSION
# The architecture (amd64/arm64) to use
ARG ARCHITECTURE

RUN \
  echo "**** downloading oauth2-proxy ****" && \
  mkdir -p /root-layer && \
  wget -O - \
    https://github.com/oauth2-proxy/oauth2-proxy/releases/download/v$PROXY_VERSION/oauth2-proxy-v$PROXY_VERSION.linux-$ARCHITECTURE.tar.gz | \
  tar -Ozxf - \
    oauth2-proxy-v$PROXY_VERSION.linux-$ARCHITECTURE/oauth2-proxy > /root-layer/oauth2-proxy && \
  chmod +x /root-layer/oauth2-proxy

# copy local files
COPY root/ /root-layer/

## Single layer deployed image ##
FROM scratch

# Add files from buildstage
COPY --from=buildstage /root-layer/ /