help building a docker image

[bjbjb]

I'm trying to install the same image but can't get it to install

Code:

FROM arm64v8/alpine:3.7

VOLUME /data
VOLUME /config

ARG DOCKERIZE_ARCH=armhf

ENV DOCKERIZE_VERSION=v0.6.0

RUN echo "@testing http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \
&& apk --no-cache add bash dumb-init ip6tables ufw@testing openvpn shadow transmission-daemon transmission-cli curl jq \
&& echo "Install dockerize $DOCKERIZE_VERSION ($DOCKERIZE_ARCH)" \
&& wget -qO- https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-linux-$DOCKERIZE_ARCH-$DOCKERIZE_VERSION.tar.gz | tar xz -C /usr/bin \
&& mkdir -p /opt/transmission-ui \
&& echo "Install Combustion" \
&& wget -qO- https://github.com/Secretmapper/combustion/archive/release.tar.gz | tar xz -C /opt/transmission-ui \
&& echo "Install kettu" \
&& wget -qO- https://github.com/endor/kettu/archive/master.tar.gz | tar xz -C /opt/transmission-ui \
&& mv /opt/transmission-ui/kettu-master /opt/transmission-ui/kettu \
&& echo "Install Transmission-Web-Control" \
&& mkdir /opt/transmission-ui/transmission-web-control \
&& curl -sL `curl -s https://api.github.com/repos/ronggang/transmission-web-control/releases/latest | jq --raw-output '.tarball_url'` | tar -C /opt/transmission-ui/transmission-web-control/ --strip-components=2 -xz \
&& ln -s /usr/share/transmission/web/style /opt/transmission-ui/transmission-web-control \
&& ln -s /usr/share/transmission/web/images /opt/transmission-ui/transmission-web-control \
&& ln -s /usr/share/transmission/web/javascript /opt/transmission-ui/transmission-web-control \
&& ln -s /usr/share/transmission/web/index.html /opt/transmission-ui/transmission-web-control/index.original.html \
&& rm -rf /tmp/* /var/tmp/* \
&& groupmod -g 1000 users \
&& useradd -u 911 -U -d /config -s /bin/false abc \
&& usermod -G users abc

ADD openvpn/ /etc/openvpn/
ADD transmission/ /etc/transmission/

plus all the environmental stuff, but it doesn't even get there.
Instead I'm getting this:

Code:

Step 7/11 : ADD openvpn/ /etc/openvpn/
ADD failed: stat /var/lib/docker/tmp/docker-builder012776508/openvpn: no such file or directory

Any ideas?
Thanks!