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Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
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consul/Dockerfile

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# This Dockerfile creates a production release image for the project using crt release flow.
FROM alpine:3.13 as default
ARG VERSION
ARG BIN_NAME
# PRODUCT_NAME and PRODUCT_VERSION are the name of the software in releases.hashicorp.com
# and the version to download. Example: PRODUCT_NAME=consul PRODUCT_VERSION=1.2.3.
ENV BIN_NAME=$BIN_NAME
ENV VERSION=$VERSION
#ARG CONSUL_VERSION=$VERSION
#ARG PRODUCT_VERSION
ARG PRODUCT_REVISION
ARG PRODUCT_NAME=$BIN_NAME
# TARGETOS and TARGETARCH are set automatically when --platform is provided.
ARG TARGETOS TARGETARCH
LABEL org.opencontainers.image.authors="Consul Team <consul@hashicorp.com>" \
org.opencontainers.image.url="https://www.consul.io/" \
org.opencontainers.image.documentation="https://www.consul.io/docs" \
org.opencontainers.image.source="https://github.com/hashicorp/consul" \
org.opencontainers.image.version=$VERSION \
org.opencontainers.image.vendor="HashiCorp" \
org.opencontainers.image.title="consul" \
org.opencontainers.image.description="Consul is a datacenter runtime that provides service discovery, configuration, and orchestration."
RUN apk add --no-cache dumb-init
# Create a consul user and group first so the IDs get set the same way, even as
# the rest of this may change over time.
RUN addgroup $BIN_NAME && \
adduser -S -G $BIN_NAME $BIN_NAME
COPY dist/$TARGETOS/$TARGETARCH/$BIN_NAME /bin/
RUN mkdir -p /consul/data && \
mkdir -p /consul/config && \
chown -R consul:consul /consul
# Expose the consul data directory as a volume since there's mutable state in there.
VOLUME /consul/data
# Server RPC is used for communication between Consul clients and servers for internal
# request forwarding.
EXPOSE 8300
# Serf LAN and WAN (WAN is used only by Consul servers) are used for gossip between
# Consul agents. LAN is within the datacenter and WAN is between just the Consul
# servers in all datacenters.
EXPOSE 8301 8301/udp 8302 8302/udp
# HTTP and DNS (both TCP and UDP) are the primary interfaces that applications
# use to interact with Consul.
EXPOSE 8500 8600 8600/udp
# Consul doesn't need root privileges so we run it as the consul user from the
# entry point script. The entry point script also uses dumb-init as the top-level
# process to reap any zombie processes created by Consul sub-processes.
COPY .release/docker/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
RUN chmod +x /usr/local/bin/docker-entrypoint.sh
ENTRYPOINT ["docker-entrypoint.sh"]
# By default you'll get an insecure single-node development server that stores
# everything in RAM, exposes a web UI and HTTP endpoints, and bootstraps itself.
# Don't use this configuration for production.
CMD ["agent", "-dev", "-client", "0.0.0.0"]