nixpkgs/modules/installer/tools/nixos-build-vms/nixos-build-vms.sh

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#! @shell@ -e
# Shows the usage of this command to the user
showUsage()
{
echo "Usage: $0 -n network_expr -i infrastructure_expr"
echo "Options:"
echo
echo "-n,--network Network Nix expression which captures properties of machines in the network"
echo "--use-backdoor Indicates that the backdoor must be enabled so that the VMs can be accessed through a UNIX domain socket"
echo "--show-trace Shows the output trace"
echo "-h,--help Shows the usage of this command"
}
# Parse valid argument options
PARAMS=`getopt -n $0 -o n:h -l network:,use-backdoor,show-trace,help -- "$@"`
if [ $? != 0 ]
then
showUsage
exit 1
fi
eval set -- "$PARAMS"
# Evaluate valid options
while [ "$1" != "--" ]
do
case "$1" in
-n|--network)
networkExpr=`readlink -f $2`
;;
--use-backdoor)
useBackdoorArg="--arg useBackdoor true"
;;
--show-trace)
showTraceArg="--show-trace"
;;
-h|--help)
showUsage
exit 0
;;
esac
shift
done
# Validate the given options
if [ "$networkExpr" = "" ]
then
echo "ERROR: A network expression must be specified!" >&2
exit 1
fi
if [ -z "$NIXOS" ]
then
NIXOS=/etc/nixos/nixos
fi
# Build a network of VMs
nix-build $NIXOS/modules/installer/tools/nixos-build-vms/build-vms.nix --argstr networkExpr $networkExpr --argstr nixos $NIXOS --argstr nixpkgs $NIXPKGS_ALL $useBackdoorArg $showTraceArg