ARG ALPINE_VERSION=3.8

FROM alpine:${ALPINE_VERSION}
ARG BUILD_DATE
ARG VCS_REF
LABEL org.label-schema.schema-version="1.0.0-rc1" \
      maintainer="quentin.mcgaw@gmail.com" \
      org.label-schema.build-date=$BUILD_DATE \
      org.label-schema.vcs-ref=$VCS_REF \
      org.label-schema.vcs-url="https://github.com/qdm12/private-internet-access-docker" \
      org.label-schema.url="https://github.com/qdm12/private-internet-access-docker" \
      org.label-schema.vcs-description="VPN client to tunnel to private internet access servers using OpenVPN, IPtables, DNS over TLS and Alpine Linux" \
      org.label-schema.vcs-usage="https://github.com/qdm12/private-internet-access-docker/blob/master/README.md#setup" \
      org.label-schema.docker.cmd="docker run -d --cap-add=NET_ADMIN --device=/dev/net/tun -e USER=js89ds7 -e PASSWORD=8fd9s239G qmcgaw/private-internet-access" \
      org.label-schema.docker.cmd.devel="docker run -it --rm --cap-add=NET_ADMIN --device=/dev/net/tun -e USER=js89ds7 -e PASSWORD=8fd9s239G qmcgaw/private-internet-access" \
      org.label-schema.docker.params="REGION=PIA region,PROTOCOL=udp/tcp,ENCRYPTION=strong/normal,BLOCK_MALICIOUS=on/off,USER=PIA user,PASSWORD=PIA password,EXTRA_SUBNETS=extra subnets to allow on the firewall" \
      org.label-schema.version="" \
      image-size="20MB" \
      ram-usage="13MB to 80MB" \
      cpu-usage="Low to Medium"
ENV USER= \
    PASSWORD= \
    ENCRYPTION=strong \
    PROTOCOL=udp \
    REGION="CA Montreal" \
    BLOCK_MALICIOUS=off \
    EXTRA_SUBNETS=
ENTRYPOINT /entrypoint.sh
HEALTHCHECK --interval=5m --timeout=5s --start-period=15s --retries=1 \
            CMD grep -Fq "$(wget -qO- 'https://duckduckgo.com/?q=what+is+my+ip' | grep -oE 'Your IP address is [0-9.]*[0-9]' | grep -oE '[0-9][0-9.]*')" "/openvpn-$PROTOCOL-$ENCRYPTION/$REGION.ovpn"
RUN apk add -q --progress --no-cache --update openvpn wget ca-certificates iptables unbound unzip && \
    wget -q https://www.privateinternetaccess.com/openvpn/openvpn.zip \
            https://www.privateinternetaccess.com/openvpn/openvpn-strong.zip \
            https://www.privateinternetaccess.com/openvpn/openvpn-tcp.zip \
            https://www.privateinternetaccess.com/openvpn/openvpn-strong-tcp.zip && \
    unzip -q openvpn.zip -d /openvpn-udp-normal && \
    unzip -q openvpn-strong.zip -d /openvpn-udp-strong && \
    unzip -q openvpn-tcp.zip -d /openvpn-tcp-normal && \
    unzip -q openvpn-strong-tcp.zip -d /openvpn-tcp-strong && \
    apk del -q --progress --purge unzip && \
    rm -rf /*.zip /var/cache/apk/* /etc/unbound/unbound.conf && \
    addgroup nonrootgroup --gid 1000 && \
    adduser nonrootuser -G nonrootgroup -D -H --uid 1000
COPY --from=qmcgaw/dns-trustanchor /named.root /etc/unbound/root.hints
COPY --from=qmcgaw/dns-trustanchor /root.key /etc/unbound/root.key
COPY --from=qmcgaw/malicious-hostnames /malicious-hostnames.bz2 /tmp/malicious-hostnames.bz2
COPY --from=qmcgaw/malicious-ips /malicious-ips.bz2 /tmp/malicious-ips.bz2
RUN cd /tmp && \
    tar -xjf malicious-hostnames.bz2 && \
    tar -xjf malicious-ips.bz2 && \
    while read hostname; do echo "local-zone: \""$hostname"\" static" >> blocks-malicious.conf; done < malicious-hostnames && \
    while read ip; do echo "private-address: $ip" >> blocks-malicious.conf; done < malicious-ips && \
    tar -cjf /etc/unbound/blocks-malicious.bz2 blocks-malicious.conf && \
    rm -f /tmp/*
COPY unbound.conf /etc/unbound/unbound.conf
COPY entrypoint.sh /entrypoint.sh
RUN chown nonrootuser:nonrootgroup -R /etc/unbound && \
    chmod 700 /etc/unbound && \
    chmod 500 /entrypoint.sh && \
    chmod 400 \
        /etc/unbound/root.hints \
        /etc/unbound/root.key \
        /etc/unbound/unbound.conf \
        /etc/unbound/blocks-malicious.bz2