Marc CARRE
43249a8d39
Given `proxy` & `router` processes have been merged, `launch-proxy`, `launch-router`, `stop-proxy`, `stop-router` do not make sense any more, and should just be `launch` and `stop` with the appropriate flags.
69 lines
2.0 KiB
Bash
Executable File
69 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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set -e
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# You may need to adjust
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# echo 4096 >/proc/sys/net/ipv4/neigh/default/gc_thresh3
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# where the number is greater than NUM_WEAVES*(NUM_WEAVES-1) plus some
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# fudge.
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#
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# Without that, some connections between the weaves may fail to get
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# established, and networking on the host in general becomes
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# broken. There will also be some "net_ratelimit: nnn callbacks
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# suppressed" messages in the syslog.
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START=${FIRST_WEAVE:-1}
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COUNT=${NUM_WEAVES:-28}
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FINISH=$((START+COUNT-1))
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SUBNET=192.168.7
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weavedir=$(dirname $0)/..
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# Generate a random MAC value - copied from 'weave' script
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random_mac() {
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# In the first byte of the MAC, the 'multicast' bit should be
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# clear and 'locally administered' bit should be set. All other
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# bits should be random.
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od -txC -An -N6 /dev/urandom | ( read a b c d e f && printf "%02x:$b:$c:$d:$e:$f" $((0x$a & ~1 | 2)) )
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}
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weave() {
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i=$1
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shift
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WEAVE_CONTAINER_NAME=weave$i WEAVE_HTTP_ADDR=$SUBNET.$i:6784 $weavedir/weave "$@"
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}
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case "$1" in
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launch)
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shift 1
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echo $(date -R) launching
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ip link show multiweave >/dev/null 2>&1 || sudo ip link add name multiweave type bridge
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for i in $(seq $START $FINISH); do
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IP=$SUBNET.$i
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sudo ip addr add $IP/24 dev multiweave
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weave $i launch --datapath '' --iface '' --no-dns --host $IP \
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--name $(random_mac) --nickname weave$i "$@"
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done
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echo $(date -R) connecting
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[ $START -gt 1 ] || START=2
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for i in $(seq $START $FINISH); do
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TO=$SUBNET.$((i-1))
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echo connecting weave$i to $TO
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weave $i connect $TO
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done
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echo $(date -R) done
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;;
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stop)
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for i in $(seq $FINISH -1 $START); do
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IP=$SUBNET.$i
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echo Stopping weave$i
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weave $i stop
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sudo ip addr del $IP/24 dev multiweave || true
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done
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[ -z "$(ip -4 -o addr show multiweave)" ] && sudo ip link del multiweave
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;;
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*)
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weave "$@"
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;;
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esac
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