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lab/create

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#!/bin/sh
## Using SSH:
## * Log in to hypervisor, retrieve list of running VMs
## * Log in to hypervisor, retrieve list of ZFS volumes
## * List any VM matching spec ^vpp[\d]+-[\d+]$
## * List any ZFS datasets matching matching spec ^ssd-vol0/vpp[\d]+-[\d+]$
## * If any of these exist, bail and require the user to run ./destroy first
##
##
## * Log in to the hypervisor, and:
## * Clone the base image to all VM names (ssd-vol0/vpp0-[0-3])
## * Mount these in a staging directory
## * Rsync over our build/$(overlay)/$(hypervisor)/*
## * Unmount the staging directories
## * Start the VMs
BASE=${BASE:=ssd-vol0/hvn0.chbtl0.ipng.ch/ssd-vol0/vpp-proto-disk0@20230403-release}
BUILD=${BUILD:=default}
LAB=${LAB:=0}
## Do not touch below this line
LABDIR=/var/lab
STAGING=$LABDIR/staging
HVN="hvn${LAB}.lab.ipng.ch"
VMS=$(ls -1 build/${BUILD}/${HVN}/)
for VM in $VMS; do
echo "[$VM] Cloning base"
ssh root@$HVN "mkdir -p $STAGING/$VM; zfs clone $BASE ssd-vol0/$VM"
echo "[$VM] Mounting in staging"
ssh root@$HVN "mount /dev/zvol/ssd-vol0/$VM-part1 $STAGING/$VM"
echo "[$VM] Rsyncing build"
rsync -aIcg build/$BUILD/$HVN/$VM/ root@${HVN}:$STAGING/$VM/
echo "[$VM] Running lab-build snippets"
ssh root@$HVN "cd $STAGING/$VM; for s in root/lab-build/*; do chroot $STAGING/$VM /bin/bash /\$s; done"
echo "[$VM] Unmounting and snapshotting pristine state"
ssh root@$HVN "umount $STAGING/$VM; zfs snapshot ssd-vol0/${VM}@pristine"
done