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teleport.sh
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teleport.sh
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#!/bin/sh
#teleport a cnvm, yo.
#[email protected] 8/21/2015
#pubbranch test
set -e
export cnvmname=$1
export container=$(docker inspect $(docker ps | grep ${cnvmname} | awk '{print $1}') | head -3 | grep Id | awk '{print $2}' | sed s/\"//g | sed s/\,//g)
export cnvmweaveipaddr=$(weave ps | grep $(docker inspect ${cnvmname} | grep \"Hostname\": | awk '{print $2}' | awk -F\" '{print $2}') | awk '{print $3}')
export dst=$2
export hosty=$(echo ${dst} | awk -F: '{print $1}')
export dsty=$(echo ${dst} | awk -F: '{print $2}')
export dstuser=$(echo ${dst} | awk -F@ '{print $1}')
export PID=$$
##test 2
#functions / defines
status() {
echo "[o] $* "
}
error() {
echo "[-] ERROR: $*"
}
remote_ok() {
status Checking remote landing-zone...
testit=$(ssh -o StrictHostKeyChecking=no ${hosty} whoami)
if [ $testit != "$dstuser" ] ; then
error You dont have remote ssh -o StrictHostKeyChecking=no rights! Bailing....
exit 100
fi
tesit2=$(ssh -o StrictHostKeyChecking=no ${hosty} "ls -la ${dsty} 2>1 | grep -v cannot| wc -l")
if [ $tesit2 -lt 1 ] ; then
error REMOTE Target directory doesn\'t exist. Bailing!
exit 100
fi
status Remote landing zone OK
}
sanitize_it() {
status Sanitizing ${hosty}
}
snapshot() {
status Setting up local landing-zone...
mkdir -p /home/$(whoami)/sneakers/${container}.$$
IMAGEDIR=/home/$(whoami)/sneakers/${container}.$$
status Checkpointing sneaker ${GRAY}${container}
docker checkpoint --image-dir=${IMAGEDIR} --work-dir=/tmp ${container} >/dev/null
status Checkpoint success...
SOURCEIMAGE=$(docker inspect ${container} | grep \"Image\": | tail -1 | awk '{print $2}' | sed s/\"//g | sed s/,//g | sed s/\\//-/g)
DESTIMAGE=${IMAGEDIR}/${SOURCEIMAGE}-$$.tar.gz
export DESTIMAGE
status Registering sneaker image...
docker commit $1 $SOURCEIMAGE-$$ >/dev/null
status Streaming sneaker image...
docker save $SOURCEIMAGE-$$ | gzip - | ssh -o StrictHostKeyChecking=no -C ${hosty} "gzip -dc | docker load"
status Streaming sneaker image COMPLETE
}
teleport() {
status Transferring machine state information....
scp -o StrictHostKeyChecking=no -r $1 $2 > /dev/null
status Machine state information transfer COMPLETE
status Creating remote surrogate...
REMOTESNEAKER=$(ssh -o StrictHostKeyChecking=no ${hosty} docker create --name=${cnvmname} ${SOURCEIMAGE}-${PID})
ssh -o StrictHostKeyChecking=no ${hosty} docker start ${REMOTESNEAKER} >/dev/null
ssh -o StrictHostKeyChecking=no ${hosty} docker kill ${REMOTESNEAKER} >/dev/null
status Remote surrogate creation ${REMOTESNEAKER} COMPLETE
status Restoring instance run state...
ssh -o StrictHostKeyChecking=no ${hosty} docker restore --work-dir=/tmp --image-dir=${dsty}/${container}.${PID} --force ${REMOTESNEAKER} >/dev/null
status Instance run state restoration COMPLETE
status Updating remote native IP addr and routes
REMOTEIPADDR=$(ssh -o StrictHostKeyChecking=no ${hosty} docker inspect ${REMOTESNEAKER} | grep IPAddress\" | sed s/\"//g | sed s/,//g | awk '{print $2}')
ssh -o StrictHostKeyChecking=no ${hosty} docker exec --privileged=true ${REMOTESNEAKER} ifconfig eth0 ${REMOTEIPADDR} up
ssh -o StrictHostKeyChecking=no ${hosty} "docker exec --privileged=true ${REMOTESNEAKER} route add -net 0.0.0.0 netmask 0.0.0.0 gw 172.17.42.1 || /bin/true" 2>&1 >/dev/null
status Updating remote native IP addr and routes COMPLETE
status Bringing up Weave sneaker-LAN.....
#jiggle-the-handle :)
ssh -o StrictHostKeyChecking=no ${hosty} weave attach ${cnvmweaveipaddr} ${REMOTESNEAKER} 2>/dev/null
ssh -o StrictHostKeyChecking=no ${hosty} weave detach ${cnvmweaveipaddr} ${REMOTESNEAKER} 2>/dev/null
ssh -o StrictHostKeyChecking=no ${hosty} weave attach ${cnvmweaveipaddr} ${REMOTESNEAKER} 2>/dev/null
status Weave sneaker-LAN ONLINE
status Instance teleportation COMPLETE
status New sneaker id: ${REMOTESNEAKER}
status New native IP ADDR: ${REMOTEIPADDR}
status Weave SLAN IP ADDR: ${cnvmweaveipaddr}
}
#main
status Checking remote site
remote_ok
status Sanitizing site
sanitize_it
status Snapshotting sneaker: ${container}
snapshot ${container}
status Teleporting sneaker: ${container}
teleport ${IMAGEDIR} ${dst}
status Cleaning up...
docker rm ${container}
status DONE