Files
linuxkit/projects/demo/etcd/etcd.sh
Rolf Neugebauer baab60ea87 demo: Update etcd to use the new mount container
Rolling updates still work

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
2017-04-09 20:50:10 +01:00

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#! /bin/sh
# debug
set -x
set -v
DATADIR=/var/lib/etcd
# Wait till we have an IP address
IP=""
while [ -z "$IP" ]; do
IP=$(ifconfig eth0 2>/dev/null|awk '/inet addr:/ {print $2}'|sed 's/addr://')
sleep 1
done
# Name is infra+last octet of IP address
NUM=$(echo ${IP} | cut -d . -f 4)
PREFIX=$(echo ${IP} | cut -d . -f 1,2,3)
NAME=infra${NUM}
# This should come from Metadata
INIT_CLUSTER="infra200=http://${PREFIX}.200:2380,infra201=http://${PREFIX}.201:2380,infra202=http://${PREFIX}.202:2380,infra203=http://${PREFIX}.203:2380,infra204=http://${PREFIX}.204:2380"
# We currently have no easy way to determine if we join a cluster for
# the first time or if we got restarted and need to join an existing
# cluster. So we first try joining a *new* cluster. This fails if we
# had already joined it previously. As a fallback we then try to join
# an existing cluster.
# Try to join an new cluster
/usr/local/bin/etcd \
--name ${NAME} \
--debug \
--log-package-levels etcdmain=DEBUG,etcdserver=DEBUG \
--data-dir $DATADIR \
--initial-advertise-peer-urls http://${IP}:2380 \
--listen-peer-urls http://${IP}:2380 \
--listen-client-urls http://${IP}:2379,http://127.0.0.1:2379 \
--advertise-client-urls http://${IP}:2379 \
--initial-cluster-token etcd-cluster-1 \
--initial-cluster ${INIT_CLUSTER} \
--initial-cluster-state new
[ $? -eq 0 ] && exit 0
# Try to join an existing cluster
/usr/local/bin/etcd \
--name ${NAME} \
--debug \
--log-package-levels etcdmain=DEBUG,etcdserver=DEBUG \
--data-dir $DATADIR \
--initial-advertise-peer-urls http://${IP}:2380 \
--listen-peer-urls http://${IP}:2380 \
--listen-client-urls http://${IP}:2379,http://127.0.0.1:2379 \
--advertise-client-urls http://${IP}:2379 \
--initial-cluster ${INIT_CLUSTER} \
--initial-cluster-state existing