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89 lines
2.6 KiB
Bash
Executable File
89 lines
2.6 KiB
Bash
Executable File
#! /bin/sh
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# debug
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set -x
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set -v
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MOUNTPOINT=/var/etcd
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mount_drive()
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{
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mkdir -p "$MOUNTPOINT"
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# TODO fix for multiple disks, cdroms etc
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DEVS="$(find /dev -maxdepth 1 -type b ! -name 'loop*' ! -name 'nbd*' | grep -v '[0-9]$' | sed 's@.*/dev/@@' | sort)"
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for DEV in $DEVS
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do
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DRIVE="/dev/${DEV}"
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# see if it has a partition table
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if sfdisk -d "${DRIVE}" >/dev/null 2>/dev/null
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then
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# 83 is Linux partition identifier
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DATA=$(sfdisk -J "$DRIVE" | jq -e -r '.partitiontable.partitions | map(select(.type=="83")) | .[0].node')
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if [ $? -eq 0 ]
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then
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mount "$DATA" "$MOUNTPOINT" && return
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fi
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fi
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done
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echo "WARNING: Failed to mount a persistent volume (is there one?)"
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# not sure if we want to fatally bail here, in some debug situations it is ok
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# exit 1
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}
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mount_drive
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# Wait till we have an IP address
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IP=""
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while [ -z "$IP" ]; do
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IP=$(ifconfig eth0 2>/dev/null|awk '/inet addr:/ {print $2}'|sed 's/addr://')
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sleep 1
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done
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# Name is infra+last octet of IP address
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NUM=$(echo ${IP} | cut -d . -f 4)
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PREFIX=$(echo ${IP} | cut -d . -f 1,2,3)
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NAME=infra${NUM}
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# This should come from Metadata
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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"
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# We currently have no easy way to determine if we join a cluster for
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# the first time or if we got restarted and need to join an existing
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# cluster. So we first try joining a *new* cluster. This fails if we
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# had already joined it previously. As a fallback we then try to join
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# an existing cluster.
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# Try to join an new cluster
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/usr/local/bin/etcd \
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--name ${NAME} \
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--debug \
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--log-package-levels etcdmain=DEBUG,etcdserver=DEBUG \
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--data-dir $MOUNTPOINT \
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--initial-advertise-peer-urls http://${IP}:2380 \
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--listen-peer-urls http://${IP}:2380 \
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--listen-client-urls http://${IP}:2379,http://127.0.0.1:2379 \
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--advertise-client-urls http://${IP}:2379 \
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--initial-cluster-token etcd-cluster-1 \
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--initial-cluster ${INIT_CLUSTER} \
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--initial-cluster-state new
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[ $? -eq 0 ] && exit 0
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# Try to join an existing cluster
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/usr/local/bin/etcd \
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--name ${NAME} \
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--debug \
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--log-package-levels etcdmain=DEBUG,etcdserver=DEBUG \
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--data-dir $MOUNTPOINT \
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--initial-advertise-peer-urls http://${IP}:2380 \
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--listen-peer-urls http://${IP}:2380 \
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--listen-client-urls http://${IP}:2379,http://127.0.0.1:2379 \
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--advertise-client-urls http://${IP}:2379 \
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--initial-cluster ${INIT_CLUSTER} \
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--initial-cluster-state existing
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