2019-01-30 06:05:57 +00:00
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# https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/container.md#docker
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FROM alpine:latest
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2019-05-10 03:06:49 +00:00
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ARG ETCD_VER=v3.3.13
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2019-01-30 06:05:57 +00:00
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ARG ETCD_DOWNLOAD_URL=https://github.com/coreos/etcd/releases/download
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ENV DATA_DIR=/var/lib/etcd/
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ENV IP=0.0.0.0
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ENV NODE_NAME=node1
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ENV CLUSTER=${NODE_NAME}=http://${IP}:2380
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ENV TOKEN=my-etcd-token
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ENV CLUSTER_STATE=new
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2019-05-08 10:10:47 +00:00
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ENV ETCDCTL_API=3
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2019-01-30 06:05:57 +00:00
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2019-05-10 03:06:49 +00:00
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# VOLUME [ "${DATA_DIR}" ]
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2019-01-30 06:05:57 +00:00
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RUN wget ${ETCD_DOWNLOAD_URL}/${ETCD_VER}/etcd-${ETCD_VER}-linux-amd64.tar.gz \
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&& tar -xzvf etcd*.tar.gz \
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&& mv etcd*/etcd /usr/local/bin/ \
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2019-05-08 10:10:47 +00:00
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&& mv etcd*/etcdctl /usr/local/bin/ \
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2019-01-30 06:05:57 +00:00
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&& rm -rf etcd* \
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&& mkdir -p ${DATA_DIR} \
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# Alpine Linux doesn't use pam, which means that there is no /etc/nsswitch.conf,
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# but Golang relies on /etc/nsswitch.conf to check the order of DNS resolving
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# (see https://github.com/golang/go/commit/9dee7771f561cf6aee081c0af6658cc81fac3918)
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# To fix this we just create /etc/nsswitch.conf and add the following line:
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&& echo 'hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4' >> /etc/nsswitch.conf
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EXPOSE 2379 2380
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CMD ["sh", "-c", "etcd --data-dir ${DATA_DIR} --name ${NODE_NAME} \
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--initial-advertise-peer-urls http://${IP}:2380 --listen-peer-urls http://${IP}:2380 \
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--advertise-client-urls http://${IP}:2379 --listen-client-urls http://${IP}:2379 \
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--initial-cluster ${CLUSTER} \
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2019-05-08 10:10:47 +00:00
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--initial-cluster-state ${CLUSTER_STATE} --initial-cluster-token ${TOKEN} \
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--auto-compaction-retention=1"]
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