[et-mgmt-tools] [PATCH] virtinst - virt-convert vmware output
Cole Robinson
crobinso at redhat.com
Wed Sep 24 19:41:25 UTC 2008
Joseph Boggs wrote:
> virt-pack was creating a wrapper file for each disk rather than
> converting it. If we were to convert an image once and then try to
> reconvert that image to another format it will fail based on that
> wrapper file not being the actual disk. We can write an exception to
> handle this. It works perfectly in vmware to redirect it to the raw file
> with the appropriate properties but conflicts with qemu-img for now. It
> was more of a way to package multiple configurations using the same disk
> image file.
>
> Rediffed against current changeset 600 and conflicts resolved with the
> vmware to vmx changes reverted.
>
Thanks.
> diff -r 58a909b4f71c virt-convert
> --- a/virt-convert Mon Sep 22 11:32:11 2008 -0400
> +++ b/virt-convert Tue Sep 23 11:53:19 2008 -0400
> @@ -48,10 +48,9 @@
> opts.add_option("-d", "--debug", action="store_true", dest="debug",
> help=("Print debugging information"))
> opts.add_option("-i", "--input-format", action="store",
> - dest="input_format", help=("Input format, e.g. 'vmx'"))
> + dest="input_format", help=("Input format, e.g. 'vmx / virt-image'"))
> opts.add_option("-o", "--output-format", action="store",
> - dest="output_format", default="virt-image",
> - help=("Output format, e.g. 'virt-image'"))
> + dest="output_format", help=("Output format, e.g. 'virt-image / vmx'"))
> opts.add_option("-D", "--disk-format", action="store",
> dest="disk_format", help=("Output disk format"))
> opts.add_option("-v", "--hvm", action="store_true", dest="fullvirt",
> @@ -211,11 +210,13 @@
> try:
> for d in vmdef.disks.values():
> format = options.disk_format
> -
> # VMDK disks on Solaris converted to vdisk by default
> if (d.format == diskcfg.DISK_FORMAT_VMDK and
> not format and vmcfg.host() == "SunOS"):
> format = "vdisk"
> +
> + if options.output_format == "vmx":
> + format = "vmdk"
>
Hmm, I'm not sure if this is correct wrt the above
code piece. Make this piece an elif with the block
above it.
Also, does vmx _only_ read vmdk files? If that's not
the case, we shouldn't overwrite whatever the specified
format may have been, just default to it if none is
specified.
> if not format:
> format = "raw"
> diff -r 58a909b4f71c virtconv/diskcfg.py
> --- a/virtconv/diskcfg.py Mon Sep 22 11:32:11 2008 -0400
> +++ b/virtconv/diskcfg.py Tue Sep 23 11:53:19 2008 -0400
> @@ -181,7 +181,7 @@
> absout = os.path.join(outdir, relout)
>
> if not (out_format == DISK_FORMAT_VDISK or
> - out_format == DISK_FORMAT_RAW):
> + out_format == DISK_FORMAT_RAW or out_format == DISK_FORMAT_VMDK):
> raise NotImplementedError("Cannot convert to disk format %s" %
> output_format)
>
> diff -r 58a909b4f71c virtconv/formats.py
> --- a/virtconv/formats.py Mon Sep 22 11:32:11 2008 -0400
> +++ b/virtconv/formats.py Tue Sep 23 11:53:19 2008 -0400
> @@ -44,6 +44,7 @@
> Import a configuration file. Raises if the file couldn't be
> opened, or parsing otherwise failed.
> """
> + print "importing file"
> raise NotImplementedError
>
Accidentally left in? :)
> @staticmethod
> diff -r 58a909b4f71c virtconv/parsers/virtimage.py
> --- a/virtconv/parsers/virtimage.py Mon Sep 22 11:32:11 2008 -0400
> +++ b/virtconv/parsers/virtimage.py Tue Sep 23 11:53:19 2008 -0400
> @@ -21,10 +21,13 @@
> import virtconv.formats as formats
> import virtconv.vmcfg as vmcfg
> import virtconv.diskcfg as diskcfg
> +import virtconv.netdevcfg as netdevcfg
> import virtinst.FullVirtGuest as fv
> -
> +import virtinst.ImageParser as ImageParser
> +from virtinst.cli import fail
> from xml.sax.saxutils import escape
> from string import ascii_letters
> +import os
> import re
>
> pv_boot_template = """
> @@ -75,6 +78,10 @@
> </storage>
> </image>
> """
> +
> +def parse_disk_entry(vm, fullkey, value):
> + return
> +
>
Hmm, if this isn't doing anything, it doesn't need to be
present. It isn't an explicit part of the API.
> def export_os_params(vm):
> """
> @@ -183,16 +190,23 @@
> """
> name = "virt-image"
> suffix = ".virt-image.xml"
> - can_import = False
> + can_import = True
> can_export = True
> - can_identify = False
> + can_identify = True
>
> @staticmethod
> def identify_file(input_file):
> """
> Return True if the given file is of this format.
> + Not able to guarantee <image> is on the top line rather than a blankline
> """
> - raise NotImplementedError
> + infile = open(input_file, "r")
> + line = infile
> + for line in line.readlines():
> + if re.match(r'^<image>', line):
> + return True
> + infile.close()
> +
>
No thoughts on my previous comment? :
'Hmm, might it be better just to do ImageParser.parse_file here,
and if it throws an exception, log it and return False?'
I think that's the way to go.
> @staticmethod
> def import_file(input_file):
> @@ -200,7 +214,48 @@
> Import a configuration file. Raises if the file couldn't be
> opened, or parsing otherwise failed.
> """
> - raise NotImplementedError
> + vm = vmcfg.vm()
> + try:
> + config = ImageParser.parse_file(input_file)
> + except Exception, e:
> + fail("Couldn't import file \"%s\": %s" % (input_file, e))
> +
I mentioned in a response to your other patch, but skip
the quote escaping, just use single quotes.
> + domain = config.domain
> + boot = domain.boots[0]
> +
> + if not config.name:
> + raise ValueError("No Name defined in \"%s\"" % input_file)
> + vm.name = config.name
> + vm.memory = config.domain.memory
> + if config.descr:
> + vm.description = config.descr
> + vm.nr_vcpus = config.domain.vcpu
> +
> + bus="scsi"
> + diskinst = 0
> + devid = (bus, diskinst)
> +
> + for d in boot.drives:
> + disk = d.disk
> + if disk.format == "raw":
> + disk.format = diskcfg.DISK_FORMAT_RAW
> + else:
> + raise ValueError("%s is not a supported disk format" % disk.format)
> +
The 'Disk' class also supports vmdk, which is supported
by diskcfg, so you probably want to allow that as well.
Also, compare against the Disk class constants, not
their values (eg. use FORMAT_RAW and FORMAT_VMDK)
> + vm.disks[devid] = diskcfg.disk(bus = bus,
> + type = diskcfg.DISK_TYPE_DISK)
> + vm.disks[devid].format = disk.format
> + vm.disks[devid].path = disk.file
> + diskinst = diskinst + 1
> +
> + nics = domain.interface
> + nicinst = 0
> + while nicinst < nics:
> + vm.netdevs[nicinst] = netdevcfg.netdev(type = netdevcfg.NETDEV_TYPE_UNKNOWN)
> + nicinst = nicinst + 1
> + """ Eventually need to add support for mac addresses if given"""
> + vm.validate()
> + return vm
>
> @staticmethod
> def export_file(vm, output_file):
> diff -r 58a909b4f71c virtconv/parsers/vmx.py
> --- a/virtconv/parsers/vmx.py Mon Sep 22 11:32:11 2008 -0400
> +++ b/virtconv/parsers/vmx.py Tue Sep 23 11:53:19 2008 -0400
> @@ -22,9 +22,105 @@
> import virtconv.vmcfg as vmcfg
> import virtconv.diskcfg as diskcfg
> import virtconv.netdevcfg as netdevcfg
> -
> +import time
> +import sys
> import re
> import os
> +
> +_VMX_MAIN_TEMPLATE = """
> +#!/usr/bin/vmplayer
> +
> +# Generated %(now)s by %(progname)s
> +# http://virt-manager.et.redhat.com/
> +
> +# This is a Workstation 5 or 5.5 config file
> +# It can be used with Player
> +config.version = "8"
> +virtualHW.version = "4"
> +
> +# Selected operating system for your virtual machine
> +guestOS = "other"
> +
> +# displayName is your own name for the virtual machine
> +displayName = "%(/image/name)s"
> +
> +# These fields are free text description fields
> +annotation = "%(/image/description)s"
> +guestinfo.vmware.product.long = "%(/image/label)s"
> +guestinfo.vmware.product.url = "http://virt-manager.et.redhat.com/"
> +guestinfo.vmware.product.class = "virtual machine"
> +
> +# Number of virtual CPUs. Your virtual machine will not
> +# work if this number is higher than the number of your physical CPUs
> +numvcpus = "%(/image/devices/vcpu)s"
> +
> +# Memory size and other memory settings
> +memsize = "%(/image/devices/memory)d"
> +MemAllowAutoScaleDown = "FALSE"
> +MemTrimRate = "-1"
> +
> +# Unique ID for the virtual machine will be created
> +uuid.action = "create"
> +
> +## For appliances where tools are installed already, this should really
> +## be false, but we don't have that ionfo in the metadata
> +# Remind to install VMware Tools
> +# This setting has no effect in VMware Player
> +tools.remindInstall = "TRUE"
> +
> +# Startup hints interfers with automatic startup of a virtual machine
> +# This setting has no effect in VMware Player
> +hints.hideAll = "TRUE"
> +
> +# Enable time synchronization between computer
> +# and virtual machine
> +tools.syncTime = "TRUE"
> +
> +# First serial port, physical COM1 is not available
> +serial0.present = "FALSE"
> +
> +# Optional second serial port, physical COM2 is not available
> +serial1.present = "FALSE"
> +
> +# First parallell port, physical LPT1 is not available
> +parallel0.present = "FALSE"
> +
> +# Logging
> +# This config activates logging, and keeps last log
> +logging = "TRUE"
> +log.fileName = "%(/image/name)s.log"
> +log.append = "TRUE"
> +log.keepOld = "3"
> +
> +# These settings decides interaction between your
> +# computer and the virtual machine
> +isolation.tools.hgfs.disable = "FALSE"
> +isolation.tools.dnd.disable = "FALSE"
> +isolation.tools.copy.enable = "TRUE"
> +isolation.tools.paste.enabled = "TRUE"
> +
> +# Settings for physical floppy drive
> +floppy0.present = "FALSE"
> +"""
> +
> +
> +
Trim a couple of these lines.
> +_VMX_ETHERNET_TEMPLATE = """
> +ethernet%(dev)s.present = "TRUE"
> +ethernet%(dev)s.connectionType = "nat"
> +ethernet%(dev)s.addressType = "generated"
> +ethernet%(dev)s.generatedAddressOffset = "0"
> +ethernet%(dev)s.autoDetect = "TRUE"
> +"""
> +
> +_VMX_IDE_TEMPLATE = """
> +# IDE disk
> +ide%(dev)s.present = "TRUE"
> +ide%(dev)s.fileName = "%(disk_filename)s"
> +ide%(dev)s.mode = "persistent"
> +ide%(dev)s.startConnected = "TRUE"
> +ide%(dev)s.writeThrough = "TRUE"
> +"""
>
> def parse_netdev_entry(vm, fullkey, value):
> """
> @@ -70,14 +166,13 @@
>
> # Does anyone else think it's scary that we're still doing things
> # like this?
> +
> if bus == "ide":
> inst = int(inst) + int(bus_nr) * 2
> -
> devid = (bus, inst)
> if not vm.disks.get(devid):
> vm.disks[devid] = diskcfg.disk(bus = bus,
> type = diskcfg.DISK_TYPE_DISK)
> -
> if key == "devicetype":
> if lvalue == "atapi-cdrom" or lvalue == "cdrom-raw":
> vm.disks[devid].type = diskcfg.DISK_TYPE_CDROM
> @@ -100,7 +195,7 @@
> name = "vmx"
> suffix = ".vmx"
> can_import = True
> - can_export = False
> + can_export = True
> can_identify = True
>
> @staticmethod
> @@ -160,7 +255,7 @@
> for devid, disk in vm.disks.iteritems():
> if disk.type == diskcfg.DISK_TYPE_DISK:
> continue
> -
> +
> # vmx files often have dross left in path for CD entries
> if (disk.path is None
> or disk.path.lower() == "auto detect" or
> @@ -180,6 +275,8 @@
>
> @staticmethod
> def export_file(vm, output_file):
> +
> +
> """
> Export a configuration file.
> @vm vm configuration instance
Hmm, the 3/4 of the previous changes are all whitespace.
Please try to minimize these in the future, they just
balloon patch size and generally add nothing of value.
> @@ -189,6 +286,56 @@
> exception on failure to write the output file.
> """
>
> - raise NotImplementedError
> + """ Cleanup spaces and multiple lines"""
> + vm.description = vm.description.strip()
> + vm.description = vm.description.replace("\n","|")
> + vmx_out_template = []
> + vmx_dict = {
> + "now": time.strftime("%Y-%m-%dT%H:%M:%S %Z", time.localtime()),
> + "progname": os.path.basename(sys.argv[0]),
> + "/image/name": vm.name,
> + "/image/description": vm.description or "None",
> + "/image/label": vm.name,
> + "/image/devices/vcpu" : vm.nr_vcpus,
> + "/image/devices/memory": long(vm.memory)/1024
> + }
> + vmx_out = _VMX_MAIN_TEMPLATE % vmx_dict
> + vmx_out_template.append(vmx_out)
> +
> + disk_out_template = []
> + diskcount = 0
> + for disk in vm.disks:
> + ide_count = 0
> + dev = "%d:%d" % (ide_count / 2, ide_count % 2)
> + disk_dict = {
> + "dev": dev,
> + "disk_filename" : vm.disks[disk].path
> + }
> + disk_out = _VMX_IDE_TEMPLATE % disk_dict
> + disk_out_template.append(disk_out)
> + diskcount = diskcount + 1
> +
> + eth_out_template = []
> + if len(vm.netdevs):
> + for devnum in vm.netdevs:
> + eth_dict = {
> + "dev" : devnum
> + }
> + eth_out = _VMX_ETHERNET_TEMPLATE % eth_dict
> + eth_out_template.append(eth_out)
> +
> +
> +
> +
> +
> +
> +### write out generated templates, will sequence these better so we can write inline ###
> + outfile = open(output_file, "w")
> + outfile.writelines(vmx_out_template)
> + outfile.writelines(disk_out_template)
> + outfile.writelines(eth_out_template)
> + outfile.close()
> +
> + #raise NotImplementedError
Hmm, why all the extra newlines and strangely indented comment?
Thanks,
Cole
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