Dockerfile.watcher

FROM alpine:3.11

LABEL maintainer="OMG Network Team <omg@omise.co>"
LABEL description="Official image for OMG Network (Watcher) Plasma Network"

ENV LANG=C.UTF-8

## S6
##

ENV S6_VERSION="1.21.4.0"

RUN set -xe \
 && apk add --update --no-cache --virtual .fetch-deps \
        curl \
        ca-certificates \
 && S6_DOWNLOAD_URL="https://github.com/just-containers/s6-overlay/releases/download/v${S6_VERSION}/s6-overlay-amd64.tar.gz" \
 && S6_DOWNLOAD_SHA256="e903f138dea67e75afc0f61e79eba529212b311dc83accc1e18a449d58a2b10c" \
 && curl -fsL -o s6-overlay.tar.gz "${S6_DOWNLOAD_URL}" \
 && echo "${S6_DOWNLOAD_SHA256}  s6-overlay.tar.gz" |sha256sum -c - \
 && tar -xzC / -f s6-overlay.tar.gz \
 && rm s6-overlay.tar.gz \
 && apk del .fetch-deps

## Application
##

#rocksdb need libstdc++
RUN apk add --update --no-cache --virtual .watcher-runtime \
        bash \
        libressl \
        libressl-dev \
        libstdc++ \
        lksctp-tools

#libsecp256k1
RUN apk add --no-cache gmp-dev

COPY rootfs /

# USER directive is not being used here since privileges are dropped via
# s6-setuigid in /entrypoint. s6-overlay is required to be run as root.
ARG user=watcher
ARG group=watcher
ARG uid=10000
ARG gid=10000

RUN set -xe \
 && addgroup -g ${gid} ${group} \
 && adduser -D -h /app -u ${uid} -G ${group} ${user} \
 && chown "${uid}:${gid}" "/app" \
 && chmod +x /watcher_entrypoint

#rocksdb from builder image to deployer image
RUN mkdir -p /usr/local/rocksdb/lib
RUN mkdir /usr/local/rocksdb/include
COPY --from=omisegoimages/elixir-omg-builder:stable-20201207 /usr/local/rocksdb/ /usr/local/rocksdb/

ARG release_version
ADD _build_docker/prod/watcher-${release_version}.tar.gz /app
RUN chown -R "${uid}:${gid}" /app
WORKDIR /app

# Watcher app is using PORT environment variable to determine which port to run
# the application server.
ENV PORT 7434

EXPOSE $PORT

# These are ports required for clustering. The range is defined in vm.args
# in inet_dist_listen_min and inet_dist_listen_max.
#EXPOSE 4369 6900 6901 6902 6903 6904 6905 6906 6907 6908 6909
# curl for healthchecks
RUN apk add --no-cache curl
ENTRYPOINT ["/init", "/watcher_entrypoint"]

CMD ["foreground"]