Martynas Pumputis
4f42029228
The vars can be customized before enabling the plugin with e.g.:
docker plugin set $PLUGIN_NAME set WEAVE_MTU=8160
The ARP settings apply to "weave" bridge. In order to manipulate them,
we bind mount the host's /proc to /host/proc.
(The mount type of /proc changed to bind, Otherwise (when type =
"proc"), the kernel does not propagate pids of host processes as the
plugin runs in a separate PID ns.)
Persistence relies on weave.db which is stored under
/var/lib/weave/weave.db on the host.
NOTE: we do not persist peer list for plugin-v2, as it gets
restored from existing alive master nodes during the peer discovery.
78 lines
2.4 KiB
Bash
Executable File
78 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
set -e
|
|
|
|
# Default if not supplied - same as weave net default
|
|
IPALLOC_RANGE=${IPALLOC_RANGE:-10.32.0.0/12}
|
|
HTTP_ADDR=${WEAVE_HTTP_ADDR:-127.0.0.1:6784}
|
|
STATUS_ADDR=${WEAVE_STATUS_ADDR:-0.0.0.0:6782}
|
|
HOST_ROOT=${HOST_ROOT:-/host}
|
|
WEAVE_DIR="/host/var/lib/weave"
|
|
LOG_FILE_WEAVER="$WEAVE_DIR/weaver.log"
|
|
LOG_FILE_PLUGIN="$WEAVE_DIR/plugin.log"
|
|
|
|
mkdir $WEAVE_DIR || true
|
|
|
|
echo "Starting launch.sh" >>$LOG_FILE_WEAVER
|
|
|
|
# Check if the IP range overlaps anything existing on the host
|
|
/usr/bin/weaveutil netcheck $IPALLOC_RANGE weave
|
|
|
|
SWARM_PEERS=$(/usr/bin/weaveutil swarm-manager-peers 2>>$LOG_FILE_WEAVER)
|
|
! /usr/bin/weaveutil is-swarm-manager 2>>$LOG_FILE_WEAVER || IS_SWARM_MANAGER=1
|
|
# Prevent from restoring from a persisted peers list
|
|
rm -f "/restart.sentinel"
|
|
|
|
/home/weave/weave --local create-bridge \
|
|
--proc-path=/host/proc \
|
|
--weavedb-dir-path=$WEAVE_DIR \
|
|
--force >>$LOG_FILE_WEAVER 2>&1
|
|
|
|
BRIDGE_OPTIONS="--datapath=datapath"
|
|
if [ "$(/home/weave/weave --local bridge-type)" = "bridge" ]; then
|
|
# TODO: Call into weave script to do this
|
|
if ! ip link show vethwe-pcap >/dev/null 2>&1; then
|
|
ip link add name vethwe-bridge type veth peer name vethwe-pcap
|
|
ip link set vethwe-bridge up
|
|
ip link set vethwe-pcap up
|
|
ip link set vethwe-bridge master weave
|
|
fi
|
|
BRIDGE_OPTIONS="--iface=vethwe-pcap"
|
|
fi
|
|
|
|
if [ -z "$IPALLOC_INIT" ]; then
|
|
if [ $IS_SWARM_MANAGER == "1" ]; then
|
|
IPALLOC_INIT="consensus=$(echo $SWARM_PEERS | wc -l)"
|
|
else
|
|
IPALLOC_INIT="observer"
|
|
fi
|
|
fi
|
|
|
|
/home/weave/weaver $EXTRA_ARGS --port=6783 $BRIDGE_OPTIONS \
|
|
--http-addr=$HTTP_ADDR --status-addr=$STATUS_ADDR --docker-api='' --no-dns \
|
|
--ipalloc-range=$IPALLOC_RANGE \
|
|
--ipalloc-init $IPALLOC_INIT \
|
|
--nickname "$(hostname)" \
|
|
--log-level=debug \
|
|
--db-prefix="$WEAVE_DIR/weave" \
|
|
$(echo $SWARM_PEERS | tr '\n' ' ') \
|
|
>>$LOG_FILE_WEAVER 2>&1 &
|
|
WEAVE_PID=$!
|
|
|
|
# Wait for weave process to become responsive
|
|
while true; do
|
|
curl $HTTP_ADDR/status >/dev/null 2>&1 && break
|
|
if ! kill -0 $WEAVE_PID >/dev/null 2>&1; then
|
|
echo Weave process has died >&2
|
|
exit 1
|
|
fi
|
|
sleep 1
|
|
done
|
|
|
|
# TODO(mp) docker api?
|
|
/home/weave/plugin $EXTRA_ARGS --log-level=debug --meshsocket='' --docker-api='' >>$LOG_FILE_PLUGIN 2>&1 &
|
|
|
|
echo "End of launch.sh" >>$LOG_FILE_WEAVER
|
|
|
|
wait $WEAVE_PID
|