Dockerfile

#INSTALL 1/2 CONSUL_TEMPLATE

FROM debian:jessie as consul-template
LABEL authors="Miguel Ángel Ausó m.auso.p@gmail.com"
 
# CONSUL-TEMPLATE OPTIONS
ENV CONSUL_TEMPLATE_VERSION=0.18.5

RUN apt-get update && \
    mkdir -p /tmp/consul-template && \
    cd /tmp/consul-template && \
    apt-get -y install wget unzip && \
    wget https://releases.hashicorp.com/consul-template/${CONSUL_TEMPLATE_VERSION}/consul-template_${CONSUL_TEMPLATE_VERSION}_linux_amd64.zip && \
    unzip consul-template_${CONSUL_TEMPLATE_VERSION}_linux_amd64.zip

# END 1/2

# INSTALL 2/2 HAPROXY

FROM debian:jessie
LABEL description="HaProxy images integrate with Consul using consul template"
LABEL version="1.7.9"

# COPY CONSUL TEMPLATE
COPY --from=consul-template /tmp/consul-template /

# HAPROXY OPTIONS
ENV HAPROXY_MAXCONN_GLOBAL=50000 HAPROXY_SPREAD_CHECKS=5 HAPROXY_MAX_SPREAD_CHECKS=15000 HAPROXY_SPREAD-CHECKS=5 HAPROXY_RETRIES=3 HAPROXY_BACKLOG=10000 HAPROXY_MAXCONN=10000 HAPROXY_TIMEOUT_CONNECT=3s HAPROXY_TIMEOUT_CLIENT=30s HAPROXY_TIMEOUT_SERVER=30s HAPROXY_TIMEOUT_HTTP_KEEP_ALIVE=1s HAPROXY_TIMEOUT_HTTP_REQUEST=15s HAPROXY_TIMEOUT_QUEUE=30s LOCAL_SYSLOG=127.0.0.1:514 

ENV CONSUL_SERVER=127.0.0.1:8500 TINI_VERSION=v0.14.0

## HAProxy CONFIGURE
COPY haproxy.cfg.ctmpl /haproxy.cfg.ctmpl

# runtime dependencies
RUN apt-get update && apt-get -y upgrade && apt-get install -y --no-install-recommends \
        iptables \
        openssl \
        procps \
        python3 \
        runit \
        socat \
        ca-certificates

# Build Haproxy
COPY build-haproxy.sh \
    /haproxy/
RUN chmod 755 /haproxy/build-haproxy.sh

RUN apt-get update && apt-get install -y --no-install-recommends gcc libc6-dev libffi-dev libpcre3-dev libreadline-dev libssl-dev zlib1g-dev make wget \
  && rm -rf /var/lib/apt/lists/* \
  && /haproxy/build-haproxy.sh \
  && apt-get purge -y --auto-remove $buildDeps \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/*

COPY *.lua /haproxy/

COPY run.sh /run.sh
RUN chmod 755 /run.sh \
    && mkdir -p /var/state/haproxy/ \
    && mkdir -p /var/run/haproxy/

# Script to star with consul-template and haproxy
COPY config.conf /config.conf

# All Tini does is spawn a single child (Tini is meant to be run in a container), and wait for it to exit all the while reaping zombies and performing signal forwarding.
RUN apt-get update && apt-get install -y --no-install-recommends gnupg2 wget \
  && wget --output-document=tini https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini \
  && wget --output-document=tini.asc https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini.asc \
  && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 595E85A6B1B4779EA4DAAEC70B588DFF0527A9B7 \
  && gpg --verify /tini.asc \
  && rm -rf /tini.asc \
  && mv tini /usr/bin/tini \
  && chmod +x /usr/bin/tini \
  && tini -- true \
RUN apt-get purge -y --auto-remove gnupg2 wget

ENTRYPOINT [ "tini", "-g", "--", "/consul-template" ]
CMD [ "-config=/config.conf" ]

# END 2/2