119 lines
2.5 KiB
Bash
Executable file
119 lines
2.5 KiB
Bash
Executable file
#!/bin/bash
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#
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# Script for bringing up an N node consul cluster
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# on the local machine on different ports.
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#
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# The first node is listening on the default ports
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# so that the command line tool works.
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#
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# Examples:
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#
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# 3-node cluster:
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#
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# $ consul-cluster.bash
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# $ consul-cluster.bash 3
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#
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# 5-node cluster with specific consul version:
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#
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# $ consul-cluster.bash 5 ~/consul-0.7.5/consul
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config() {
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local port=${1:-0}
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local name="consul${port}"
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local nodeid=$(printf "00000000-0000-0000-0000-%012d" $port)
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local path="$DIR/${name}"
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cat << EOF > "${path}/a.json"
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{
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"server" : true,
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"node_id" : "${nodeid}",
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"node_name" : "${name}",
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"data_dir" : "${name}/data",
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"pid_file" : "${name}/pid",
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"bind_addr" : "127.0.0.1",
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"retry_join" : ["127.0.0.1:8301","127.0.0.1:8304","127.0.0.1:8307"],
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"bootstrap_expect" : ${N},
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"ports" : {
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"http" : $((8500 + $port)),
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"dns" : $((8600 + $port)),
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"server" : $((8300 + 3*$port)),
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"serf_lan" : $((8301 + 3*$port)),
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"serf_wan" : $((8302 + 3*$port)),
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"rpc" : $((8400 + $port))
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}
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}
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EOF
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}
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trap cleanup EXIT TERM KILL
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jobs=
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cleanup() {
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[ "$jobs" == "" ] || kill $jobs
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[ "$CLEANDIR" == "y" -a "$DIR" != "" ] && rm -rf "$DIR"
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}
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run() {
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local port=$1
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local name=consul${port}
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local path="$DIR/${name}"
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rm -rf "${path}"
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mkdir -p "${path}"
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config $port
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( $CONSUL agent -config-dir "${path}" 2>&1 | tee "${path}/log" ; echo "Exit code: $?" >> "${path}/log" ) &
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jobs="$jobs $!"
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}
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N=3
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CONSUL=$(which consul)
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CLEANDIR=y
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SLEEP=y
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while test $# -gt 0 ; do
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case "$1" in
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-d|--dir)
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shift
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DIR=$1
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CLEANDIR=n
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shift
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;;
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-n|--nodes)
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shift
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N=$1
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shift
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;;
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-q|--quick)
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shift
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SLEEP=n
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;;
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-x|--consul)
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shift
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CONSUL=$1
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shift
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;;
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*)
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echo "Usage: $(basename $0) [-n nodes] [-x consul] [-d dir]"
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echo ""
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echo " -h, --help brief help"
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echo " -d, --dir temp dir path to the temp directory, default is $DIR"
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echo " -n, --nodes nodes number of nodes to start, default is $N"
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echo " -q, --quick do not wait during startup"
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echo " -x, --consul consul consul binary, default is $CONSUL"
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exit 0
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;;
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esac
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done
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[ "$DIR" == "" ] && DIR=$(mktemp -d /tmp/consul-cluster-XXXXXXX)
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echo "Starting $N node cluster. exe=$CONSUL data=$DIR"
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[ "$CLEANDIR" == "y" ] && echo "Data files will be removed"
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echo "Stop with CTRL-C"
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echo ""
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[ "$SLEEP" == "y" ] && sleep 3
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for ((i=0 ; i < N ; i++)) ; do run $i ; done
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wait
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