bingoku/zerotier-one repository overview

## NOTE: to retain configuration; mount a Docker volume, or use a bind-mount, on /var/lib/zerotier-one

FROM debian:buster-slim as builder

## Supports x86_64, x86, arm, and arm64

RUN apt-get update && apt-get install -y curl gnupg
RUN curl -s 'https://raw.githubusercontent.com/zerotier/ZeroTierOne/master/doc/contact%40zerotier.com.gpg' | gpg --import && \
    if z=$(curl -s 'https://install.zerotier.com/' | gpg); then echo "$z" | bash; fi
RUN apt-get update && apt-get install -y zerotier-one=1.8.2
COPY ./main.sh /var/lib/zerotier-one/main.sh

FROM debian:buster-slim
LABEL version="1.8.2"
LABEL description="Containerized ZeroTier One for use on CoreOS or other Docker-only Linux hosts."

# ZeroTier relies on UDP port 9993
EXPOSE 9993/udp

RUN mkdir -p /var/lib/zerotier-one
COPY --from=builder /usr/sbin/zerotier-cli /usr/sbin/zerotier-cli
COPY --from=builder /usr/sbin/zerotier-idtool /usr/sbin/zerotier-idtool
COPY --from=builder /usr/sbin/zerotier-one /usr/sbin/zerotier-one
COPY --from=builder /var/lib/zerotier-one/main.sh /main.sh

RUN chmod 0755 /main.sh
ENTRYPOINT ["/main.sh"]
CMD ["zerotier-one"]

#!/bin/sh

export PATH=/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin

if [ ! -e /dev/net/tun ]; then
	echo 'FATAL: cannot start ZeroTier One in container: /dev/net/tun not present.'
	exit 1
fi

exec "$@"