Simple bash script for managing a VirtualHost VM for local web development.

vm.sh

#! /bin/bash
ETHERNET="en0"
WIRELESS="en1"
NGINX_CONFIGS_PATH=""
VRDEPORT=3389
VRDEAUTHTYPE="external"
VRDEENABLED="off"

if [ -z $2 ]; then
	VMNAME="dev-local"
else
	VMNAME=$2
fi

#
# "start"
#
if [ $1 = "start" ]; then
	# Step 0) If VM is currently running, stop it and start it again.  I've
	# probably changed networks and forgotten it's running, so the bridge needs
	# to be reset.  I could probably be a little smarter here and check if the
	# host IP address has changed and if the bridged connection has changed
	# before just killing the current running VM, but for now it doesn't matter
	# -- I'll fix that if it becomes an issue.
	if [ "running" = `VBoxManage showvminfo "$VMNAME" | grep State | tr -s " " | cut -d" " -f2` ]; then
		# Turn off guest
		echo "Powering off current instance of \"$VMNAME\"..."
		VBoxManage controlvm "$VMNAME" acpipowerbutton
	fi

	# Step 1) Figure out whether we're running on wireless or ethernet
	# Ethernet -- check first, since if we have ethernet AND wireless, I want
	# ethernet to take priority
	if [ 'active' = `ifconfig $ETHERNET | grep status: | tr -s " " | cut -d' ' -f2` ]; then
		echo "Bridging Ethernet connection on $ETHERNET"
		INTERFACE=$ETHERNET

	# Wireless
	elif [ 'active' = `ifconfig $WIRELESS | grep status: | tr -s " " | cut -d' ' -f2` ]; then
		echo "Bridging Wireless connection on $WIRELESS"
		INTERFACE=$WIRELESS
	else
		echo "Could not find active interface.  Bridging will not be enabled.  Using hostonly adapter."
	fi

	# Step 2) Modify vbox to use the appropriate adaptor
	# Set up VM to use bridged adaptor (if available) else hostonly interface
	if [ -z $INTERFACE ]; then
		VBoxManage modifyvm "$VMNAME" --nic1 hostonly --hostonlyadapter1 "vboxnet0"
	else
		# Get bridge adaptor name
		INTERFACE_NAME="${INTERFACE}:`VBoxManage list bridgedifs | grep -v VBoxNetworkName | grep $INTERFACE | cut -d':' -f3`"

		VBoxManage modifyvm "$VMNAME" --nic1 bridged --bridgeadapter1 "$INTERFACE_NAME"
	fi

	# Step 3) start the virtual machine
	# Ensure VRDE is set up
	VBoxManage modifyvm "$VMNAME" --vrdeport $VRDEPORT --vrdeauthtype $VRDEAUTHTYPE

	# Start guest
	echo "Starting VM"
	VBoxHeadless --startvm "$VMNAME" --vrde $VRDEENABLED &
	sleep 5 # Wait a second for the VM to catch up

	# Step 4) Get the IP address of the virtual machine
	# Get guest IP address
	echo -ne "Getting the guest IP address"
	# Give the VM a little time to start up, then poll for its IP address
	COUNTER=0
	IP_FOUND=0
	until [ $IP_FOUND -gt 0 ]; do
		echo -ne "."
		sleep 2
		let COUNTER+=1
		if [ $COUNTER -gt 10 ]; then
			GUEST_IP=`VBoxManage guestproperty enumerate "$VMNAME" | grep "V4/IP" | cut -d"," -f2 | cut -d":" -f2 | tr -d " "`
			if [ "$GUEST_IP" != "" ]; then
				let IP_FOUND+=1
			fi
		elif [ $COUNTER -gt 30 ]; then
			echo "It's taking too long to get the guest's IP address."
			echo -e "Do you want to wait a little longer? [Y/n]"
			read WAIT
			if [ "$WAIT" == "Y" ] || [ "$WAIT" == "y" ]; then
				echo "Continuing to look for guest IP address..."
				echo "If this script consistently asks \"Do you want to wait a little longer?\" you may consider editing it and increasing the polling interval: $0"
				let COUNTER=0
			else
				echo "Please manually check on the virtual machine."
				VBoxManage showvminfo "$VMNAME" | grep State
				exit 2
			fi
		fi
	done
	echo ""
	echo "\"$VMNAME\" is running with the IP address: $GUEST_IP"

	# Step 5) Update hosts file with current IP address
	# Is this a fresh hosts file (one that we haven't modified before) or one that's been previously modified that we need to update?
	echo "Updating /etc/hosts using 'sudo', you will be asked for your password:"

	HOSTS="\n# \"$VMNAME\" BEGIN\n"
	while read DOMAIN
		do
			HOSTS=$HOSTS"$GUEST_IP $DOMAIN\n"
	done < ~/.vm-sites
	HOSTS=$HOSTS"# \"$VMNAME\" END"

	HOSTS_ENTRY=`grep "$VMNAME" /etc/hosts | wc -l | tr -s " "`
	if [ $HOSTS_ENTRY -gt 1 ]; then
		sudo sed -ni.bak '1h;1!H;${;g;s/# "$VMNAME" BEGIN\n.*\n# "$VMNAME" END/$HOSTS/g;p;}' /etc/hosts
	else
		echo -e $HOSTS | sudo tee -a /etc/hosts
	fi

#
# "stop"
#
elif [ $1 = "stop" ]; then
	# Turn off guest
	if [ "powered" != `VBoxManage showvminfo "$VMNAME" | grep State | tr -s " " | cut -d" " -f2` ]; then
		echo "Powering off current instance of \"$VMNAME\"..."
		VBoxManage controlvm "$VMNAME" acpipowerbutton && echo "Done!"
	else
		echo "\"$VMNAME\" is not currently running."
	fi

#
# "ip"
#
elif [ $1 = "ip" ]; then
	if [ "powered" != `VBoxManage showvminfo "$VMNAME" | grep State | tr -s " " | cut -d" " -f2` ]; then
		GUEST_IP=`VBoxManage guestproperty enumerate "$VMNAME" | grep "V4/IP" | cut -d"," -f2 | cut -d":" -f2 | tr -d " "`
		if [ -z $GUEST_IP ]; then
			echo "No IP address for \"$VMNAME\".  You should probably restart the machine."
		else
			echo $GUEST_IP
		fi
	else
		echo "\"$VMNAME\" is not currently running."
	fi

#
# default / command not found
#
else
	echo "Available commands:"
	echo "start | stop | ip"
fi




# If there are more than 1 VMs running then only add a hosts entry for the current VM
#RUNNING_VMS=`VBoxManage list runningvms | wc -l`
#if [ $RUNNING_VMS -gt 1 ]; then
#	echo "$RUNNING_VMS VMs are running"
#elif [ $RUNNING_VMS -eq 1 ]; then
#	echo "1 VM is running"
#fi