Dockerfile

FROM alpine:latest

RUN apk update \
 && apk add curl unzip bash jq ca-certificates sed \
 && rm -rf /var/cache/apk/*


# Install Consul
# Releases at https://releases.hashicorp.com/consul
RUN set -ex \
    && export CONSUL_VERSION=0.7.5 \
    && export CONSUL_CHECKSUM=40ce7175535551882ecdff21fdd276cef6eaab96be8a8260e0599fadb6f1f5b8 \
    && curl --retry 7 --fail -vo /tmp/consul.zip "https://releases.hashicorp.com/consul/${CONSUL_VERSION}/consul_${CONSUL_VERSION}_linux_amd64.zip" \
    && echo "${CONSUL_CHECKSUM}  /tmp/consul.zip" | sha256sum -c \
    && unzip /tmp/consul -d /usr/local/bin \
    && rm /tmp/consul.zip \
    # Create empty directories for Consul config and data \
    && mkdir -p /etc/consul \
    && mkdir -p /var/lib/consul \
    && mkdir /config


# Install Consul template
# Releases at https://releases.hashicorp.com/consul-template/
RUN set -ex \
    && export CONSUL_TEMPLATE_VERSION=0.19.0 \
    && export CONSUL_TEMPLATE_CHECKSUM=31dda6ebc7bd7712598c6ac0337ce8fd8c533229887bd58e825757af879c5f9f \
    && curl --retry 7 --fail -Lso /tmp/consul-template.zip "https://releases.hashicorp.com/consul-template/${CONSUL_TEMPLATE_VERSION}/consul-template_${CONSUL_TEMPLATE_VERSION}_linux_amd64.zip" \
    && echo "${CONSUL_TEMPLATE_CHECKSUM}  /tmp/consul-template.zip" | sha256sum -c \
    && unzip /tmp/consul-template.zip -d /usr/local/bin \
    && rm /tmp/consul-template.zip


# Add Containerpilot and set its configuration
COPY etc/containerpilot.json5 /etc
ENV CONTAINERPILOT /etc/containerpilot.json5
ENV CONTAINERPILOT_VERSION 3.4.2

RUN export CONTAINERPILOT_CHECKSUM=5c99ae9ede01e8fcb9b027b5b3cb0cfd8c0b8b88 \
    && export archive=containerpilot-${CONTAINERPILOT_VERSION}.tar.gz \
    && curl -Lso /tmp/${archive} \
         "https://github.com/joyent/containerpilot/releases/download/${CONTAINERPILOT_VERSION}/${archive}" \
    && echo "${CONTAINERPILOT_CHECKSUM}  /tmp/${archive}" | sha1sum -c \
    && tar zxf /tmp/${archive} -C /usr/local/bin \
    && rm /tmp/${archive}

# Add NATS
ENV GNATSD_VERSION=1.0.6 \
    GNATSD_CHECKSUM=019ee2170feb68504d1d15e4959cd2dbabbd6cd1
RUN curl -Lso /tmp/gnatsd.zip "https://github.com/nats-io/gnatsd/releases/download/v${GNATSD_VERSION}/gnatsd-v${GNATSD_VERSION}-linux-amd64.zip" \
 && echo "${GNATSD_CHECKSUM}  /tmp/gnatsd.zip" | sha1sum -c \
 && unzip -j /tmp/gnatsd.zip -d /tmp

RUN mv /tmp/gnatsd /usr/local/bin/gnatsd \
 && rm /tmp/gnatsd.zip

# COPY ContainerPilot configuration and NATS manage.sh
COPY etc/* /etc/
COPY bin/* /usr/local/bin/

RUN chmod 500 /usr/local/bin/manage.sh

EXPOSE 4222 8222 6222

ENTRYPOINT []
CMD ["containerpilot"]