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FROM ubuntu
RUN \
sed 's/main$/main universe/' -i /etc/apt/sources.list && \
apt-get update && \
env DEBIAN_FRONTEND=noninteractive apt-get install -y curl
RUN \
cd /tmp && \
(curl -L https://github.com/coreos/etcd/releases/download/v2.0.9/etcd-v2.0.9-linux-amd64.tar.gz | tar -xz) && \
mkdir -p /opt/etcd/bin && \
cp -v /tmp/etcd-v2.0.9-linux-amd64/etcd /opt/etcd/bin && \
cp -v /tmp/etcd-v2.0.9-linux-amd64/etcdctl /opt/etcd/bin && \
rm -rf /tmp/etcd-v2.0.9-linux-amd64
WORKDIR /opt/etcd
VOLUME ["/opt/etcd/data"]
CMD MY_IP=$(awk "/${HOSTNAME}/ {print \$1}" < /etc/hosts) && \
export HEARTBEAT_INTERVAL=${HEARTBEAT_INTERVAL:-100} && \
echo "My IP: ${MY_IP}" && \
echo "Container host: ${CONTAINER_HOST}" && \
echo "My Discovery: ${DISCOVERY}" && \
echo "Heartbeat interval: ${HEARTBEAT_INTERVAL}" && \
/opt/etcd/bin/etcd --discovery="${DISCOVERY}" \
--name=${ETCD_NAME} \
--advertise-client-urls=http://${CONTAINER_HOST}:4001 \
--initial-advertise-peer-urls=http://${CONTAINER_HOST}:7001 \
--listen-client-urls=http://${MY_IP}:4001 \
--listen-peer-urls=http://${MY_IP}:7001 \
--data-dir=/opt/etcd/data \
--heartbeat-interval=${HEARTBEAT_INTERVAL} \
--election-timeout=6000
EXPOSE 4001 7001
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