Move core of livemedia-creator into pylorax.creator
This moves everything except the cmdline checking into run_creator in pylorax.creator It also rearranges some functions to prevent import loops, and adds a utility function to imgutils (mkfsimage_from_disk for copying a partition into a filesystem image).
This commit is contained in:
Brian C. Lane
parent
96a82b07d9
commit
7fa009c66e
@ -17,25 +17,27 @@
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import logging
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log = logging.getLogger("pylorax")
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import os
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import tempfile
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import subprocess
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import shutil
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import hashlib
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import glob
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import json
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from math import ceil
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# Use Mako templates for appliance builder descriptions
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from mako.template import Template
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from mako.exceptions import text_error_template
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# Use pykickstart to calculate disk image size
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from pykickstart.parser import KickstartParser
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from pykickstart.constants import KS_SHUTDOWN
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from pykickstart.version import makeVersion
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# Use the Lorax treebuilder branch for iso creation
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from pylorax import ArchData
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from pylorax.base import DataHolder
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from pylorax.executils import execWithRedirect, runcmd
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from pylorax.imgutils import PartitionMount, mkext4img
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from pylorax.imgutils import PartitionMount
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from pylorax.imgutils import mount, umount, Mount
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from pylorax.imgutils import mksquashfs, mkrootfsimg
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from pylorax.imgutils import copytree
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@ -174,29 +176,6 @@ def make_appliance(disk_img, name, template, outfile, networks=None, ram=1024,
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f.write(result)
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def make_fsimage(diskimage, fsimage, img_size=None, label="Anaconda"):
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"""
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Copy the / partition of a partitioned disk image to an un-partitioned
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disk image.
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:param str diskimage: The full path to partitioned disk image with a /
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:param str fsimage: The full path of the output fs image file
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:param int img_size: Optional size of the fsimage in MiB or None to make
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it as small as possible
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:param str label: The label to apply to the image. Defaults to "Anaconda"
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"""
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with PartitionMount(diskimage) as img_mount:
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if not img_mount or not img_mount.mount_dir:
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return None
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log.info("Creating fsimage %s (%s)", fsimage, img_size or "minimized")
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if img_size:
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# convert to Bytes
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img_size *= 1024**2
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mkext4img(img_mount.mount_dir, fsimage, size=img_size, label=label)
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def make_runtime(opts, mount_dir, work_dir, size=None):
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"""
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Make the squashfs image from a directory
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@ -331,40 +310,6 @@ def create_pxe_config(template, images_dir, live_image_name, add_args = None):
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f.write(result)
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def create_vagrant_metadata(path, size=0):
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""" Create a default Vagrant metadata.json file
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:param str path: Path to metadata.json file
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:param int size: Disk size in MiB
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"""
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metadata = { "provider":"libvirt", "format":"qcow2", "virtual_size": ceil(size / 1024) }
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with open(path, "wt") as f:
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json.dump(metadata, f, indent=4)
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def update_vagrant_metadata(path, size):
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""" Update the Vagrant metadata.json file
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:param str path: Path to metadata.json file
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:param int size: Disk size in MiB
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This function makes sure that the provider, format and virtual size of the
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metadata file are set correctly. All other values are left untouched.
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"""
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with open(path, "rt") as f:
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try:
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metadata = json.load(f)
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except ValueError as e:
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log.error("Problem reading metadata file %s: %s", path, e)
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return
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metadata["provider"] = "libvirt"
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metadata["format"] = "qcow2"
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metadata["virtual_size"] = ceil(size / 1024)
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with open(path, "wt") as f:
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json.dump(metadata, f, indent=4)
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def make_livecd(opts, mount_dir, work_dir):
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"""
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Take the content from the disk image and make a livecd out of it
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@ -631,4 +576,140 @@ def make_live_images(opts, work_dir, disk_img):
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return work_dir
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def run_creator(opts, callback_func=None):
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"""Run the image creator process
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:param opts: Commandline options to control the process
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:type opts: Either a DataHolder or ArgumentParser
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:returns: The result directory and the disk image path.
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:rtype: Tuple of str
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This function takes the opts arguments and creates the selected output image.
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See the cmdline --help for livemedia-creator for the possible options
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(Yes, this is not ideal, but we can fix that later)
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"""
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result_dir = None
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# Parse the kickstart
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if opts.ks:
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ks_version = makeVersion()
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ks = KickstartParser(ks_version, errorsAreFatal=False, missingIncludeIsFatal=False)
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ks.readKickstart(opts.ks[0])
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# live iso usually needs dracut-live so warn the user if it is missing
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if opts.ks and opts.make_iso:
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if "dracut-live" not in ks.handler.packages.packageList:
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log.error("dracut-live package is missing from the kickstart.")
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raise RuntimeError("dracut-live package is missing from the kickstart.")
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# Make the disk or filesystem image
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if not opts.disk_image and not opts.fs_image:
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if not opts.ks:
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raise RuntimeError("Image creation requires a kickstart file")
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errors = []
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if opts.no_virt and ks.handler.method.method not in ("url", "nfs") \
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and not ks.handler.ostreesetup.seen:
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errors.append("Only url, nfs and ostreesetup install methods are currently supported."
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"Please fix your kickstart file." )
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if ks.handler.method.method in ("url", "nfs") and not ks.handler.network.seen:
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errors.append("The kickstart must activate networking if "
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"the url or nfs install method is used.")
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if ks.handler.displaymode.displayMode is not None:
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errors.append("The kickstart must not set a display mode (text, cmdline, "
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"graphical), this will interfere with livemedia-creator.")
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if opts.make_fsimage or (opts.make_pxe_live and opts.no_virt):
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# Make sure the kickstart isn't using autopart and only has a / mountpoint
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part_ok = not any(p for p in ks.handler.partition.partitions
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if p.mountpoint not in ["/", "swap"])
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if not part_ok or ks.handler.autopart.seen:
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errors.append("Filesystem images must use a single / part, not autopart or "
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"multiple partitions. swap is allowed but not used.")
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if not opts.no_virt and ks.handler.reboot.action != KS_SHUTDOWN:
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errors.append("The kickstart must include shutdown when using virt installation.")
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if errors:
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list(log.error(e) for e in errors)
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raise RuntimeError("\n".join(errors))
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# Make the image. Output of this is either a partitioned disk image or a fsimage
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try:
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disk_img = make_image(opts, ks)
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except InstallError as e:
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log.error("ERROR: Image creation failed: %s", e)
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raise RuntimeError("Image creation failed: %s" % e)
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if opts.image_only:
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return (result_dir, disk_img)
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if opts.make_iso:
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work_dir = tempfile.mkdtemp(prefix="lmc-work-")
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log.info("working dir is %s", work_dir)
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if (opts.fs_image or opts.no_virt) and not opts.disk_image:
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# Create iso from a filesystem image
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disk_img = opts.fs_image or disk_img
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if not make_squashfs(opts, disk_img, work_dir):
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log.error("squashfs.img creation failed")
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raise RuntimeError("squashfs.img creation failed")
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with Mount(disk_img, opts="loop") as mount_dir:
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result_dir = make_livecd(opts, mount_dir, work_dir)
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else:
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# Create iso from a partitioned disk image
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disk_img = opts.disk_image or disk_img
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with PartitionMount(disk_img) as img_mount:
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if img_mount and img_mount.mount_dir:
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make_runtime(opts, img_mount.mount_dir, work_dir, calculate_disk_size(opts, ks)/1024.0)
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result_dir = make_livecd(opts, img_mount.mount_dir, work_dir)
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# --iso-only removes the extra build artifacts, keeping only the boot.iso
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if opts.iso_only and result_dir:
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boot_iso = joinpaths(result_dir, "images/boot.iso")
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if not os.path.exists(boot_iso):
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log.error("%s is missing, skipping --iso-only.", boot_iso)
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else:
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iso_dir = tempfile.mkdtemp(prefix="lmc-result-")
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dest_file = joinpaths(iso_dir, opts.iso_name or "boot.iso")
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shutil.move(boot_iso, dest_file)
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shutil.rmtree(result_dir)
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result_dir = iso_dir
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# cleanup the mess
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# cleanup work_dir?
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if disk_img and not (opts.keep_image or opts.disk_image or opts.fs_image):
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os.unlink(disk_img)
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log.info("Disk image erased")
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disk_img = None
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elif opts.make_appliance:
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if not opts.ks:
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networks = []
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else:
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networks = ks.handler.network.network
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make_appliance(opts.disk_image or disk_img, opts.app_name,
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opts.app_template, opts.app_file, networks, opts.ram,
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opts.vcpus or 1, opts.arch, opts.title, opts.project, opts.releasever)
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elif opts.make_pxe_live:
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work_dir = tempfile.mkdtemp(prefix="lmc-work-")
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log.info("working dir is %s", work_dir)
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disk_img = opts.fs_image or opts.disk_image or disk_img
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log.debug("disk image is %s", disk_img)
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result_dir = make_live_images(opts, work_dir, disk_img)
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if result_dir is None:
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log.error("Creating PXE live image failed.")
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raise RuntimeError("Creating PXE live image failed.")
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if opts.result_dir != opts.tmp and result_dir:
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copytree(result_dir, opts.result_dir, preserve=False)
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shutil.rmtree(result_dir)
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result_dir = None
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return (result_dir, disk_img)
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@ -483,3 +483,37 @@ def mkhfsimg(rootdir, outfile, size=None, label="", mountargs="", graft=None):
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graft = graft or {}
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mkfsimage("hfsplus", rootdir, outfile, size, mountargs=mountargs,
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mkfsargs=["-v", label], graft=graft)
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def mkfsimage_from_disk(diskimage, fsimage, img_size=None, label="Anaconda"):
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"""
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Copy the / partition of a partitioned disk image to an un-partitioned
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disk image.
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:param str diskimage: The full path to partitioned disk image with a /
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:param str fsimage: The full path of the output fs image file
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:param int img_size: Optional size of the fsimage in MiB or None to make
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it as small as possible
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:param str label: The label to apply to the image. Defaults to "Anaconda"
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"""
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with PartitionMount(diskimage) as img_mount:
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if not img_mount or not img_mount.mount_dir:
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return None
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logger.info("Creating fsimage %s (%s)", fsimage, img_size or "minimized")
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if img_size:
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# convert to Bytes
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img_size *= 1024**2
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mkext4img(img_mount.mount_dir, fsimage, size=img_size, label=label)
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def default_image_name(compression, basename):
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""" Return a default image name with the correct suffix for the compression type.
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:param str compression: Compression type
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:param str basename: Base filename
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:returns: basename with compression suffix
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If the compression is unknown it defaults to xz
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"""
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SUFFIXES = {"xz": ".xz", "gzip": ".gz", "bzip2": ".bz2", "lzma": ".lzma"}
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return basename + SUFFIXES.get(compression, ".xz")
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@ -17,20 +17,20 @@
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import logging
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log = logging.getLogger("pylorax")
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import glob
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import json
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from math import ceil
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import os
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import tempfile
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import subprocess
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import shutil
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import glob
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import socket
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import tempfile
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# Use the Lorax treebuilder branch for iso creation
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from pylorax.creator import create_vagrant_metadata, update_vagrant_metadata, make_fsimage
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from pylorax.executils import execWithRedirect, execReadlines
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from pylorax.imgutils import PartitionMount, mksparse, mkext4img, loop_detach
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from pylorax.imgutils import get_loop_name, dm_detach, mount, umount
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from pylorax.imgutils import mkqemu_img, mktar
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from pylorax.imgutils import mkcpio
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from pylorax.imgutils import mkqemu_img, mktar, mkcpio, mkfsimage_from_disk
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from pylorax.monitor import LogMonitor
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from pylorax.mount import IsoMountpoint
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from pylorax.sysutils import joinpaths
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@ -43,6 +43,40 @@ class InstallError(Exception):
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pass
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def create_vagrant_metadata(path, size=0):
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""" Create a default Vagrant metadata.json file
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:param str path: Path to metadata.json file
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:param int size: Disk size in MiB
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"""
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metadata = { "provider":"libvirt", "format":"qcow2", "virtual_size": ceil(size / 1024) }
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with open(path, "wt") as f:
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json.dump(metadata, f, indent=4)
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def update_vagrant_metadata(path, size):
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""" Update the Vagrant metadata.json file
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:param str path: Path to metadata.json file
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:param int size: Disk size in MiB
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This function makes sure that the provider, format and virtual size of the
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metadata file are set correctly. All other values are left untouched.
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"""
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with open(path, "rt") as f:
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try:
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metadata = json.load(f)
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except ValueError as e:
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log.error("Problem reading metadata file %s: %s", path, e)
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return
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metadata["provider"] = "libvirt"
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metadata["format"] = "qcow2"
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metadata["virtual_size"] = ceil(size / 1024)
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with open(path, "wt") as f:
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json.dump(metadata, f, indent=4)
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def find_free_port(start=5900, end=5999, host="127.0.0.1"):
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""" Return first free port in range.
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@ -513,7 +547,7 @@ def virt_install(opts, install_log, disk_img, disk_size):
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raise InstallError(msg)
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if opts.make_fsimage:
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make_fsimage(diskimg_path, disk_img, disk_size, label=opts.fs_label)
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mkfsimage_from_disk(diskimg_path, disk_img, disk_size, label=opts.fs_label)
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os.unlink(diskimg_path)
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elif opts.make_tar:
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compress_args = []
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@ -20,43 +20,20 @@
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import logging
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log = logging.getLogger("livemedia-creator")
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import glob
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import os
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import selinux
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import sys
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import tempfile
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import shutil
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import glob
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import selinux
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# Use pykickstart to calculate disk image size
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from pykickstart.parser import KickstartParser
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from pykickstart.version import makeVersion
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from pykickstart.constants import KS_SHUTDOWN
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# Use the Lorax treebuilder branch for iso creation
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from pylorax import setup_logging, find_templates, vernum
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from pylorax.cmdline import lmc_parser
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from pylorax.creator import make_image, make_squashfs, make_livecd, make_runtime, make_appliance, make_live_images
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from pylorax.creator import calculate_disk_size
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from pylorax.imgutils import PartitionMount
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from pylorax.imgutils import Mount
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from pylorax.imgutils import copytree
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from pylorax.installer import InstallError
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from pylorax.creator import run_creator
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from pylorax.imgutils import default_image_name
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from pylorax.sysutils import joinpaths
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def default_image_name(compression, basename):
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""" Return a default image name with the correct suffix for the compression type.
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:param str compression: Compression type
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:param str basename: Base filename
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:returns: basename with compression suffix
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If the compression is unknown it defaults to xz
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"""
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SUFFIXES = {"xz": ".xz", "gzip": ".gz", "bzip2": ".bz2", "lzma": ".lzma"}
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return basename + SUFFIXES.get(compression, ".xz")
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def main():
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parser = lmc_parser()
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opts = parser.parse_args()
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@ -213,121 +190,12 @@ def main():
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tempfile.tempdir = opts.tmp
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disk_img = None
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# Parse the kickstart
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if opts.ks:
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ks_version = makeVersion()
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ks = KickstartParser(ks_version, errorsAreFatal=False, missingIncludeIsFatal=False)
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ks.readKickstart(opts.ks[0])
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# live iso usually needs dracut-live so warn the user if it is missing
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if opts.ks and opts.make_iso:
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if "dracut-live" not in ks.handler.packages.packageList:
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log.error("dracut-live package is missing from the kickstart.")
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sys.exit(1)
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# Make the disk or filesystem image
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if not opts.disk_image and not opts.fs_image:
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errors = []
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if opts.no_virt and ks.handler.method.method not in ("url", "nfs") \
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and not ks.handler.ostreesetup.seen:
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errors.append("Only url, nfs and ostreesetup install methods are currently supported."
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"Please fix your kickstart file." )
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if ks.handler.method.method in ("url", "nfs") and not ks.handler.network.seen:
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errors.append("The kickstart must activate networking if "
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"the url or nfs install method is used.")
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if ks.handler.displaymode.displayMode is not None:
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errors.append("The kickstart must not set a display mode (text, cmdline, "
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"graphical), this will interfere with livemedia-creator.")
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if opts.make_fsimage or (opts.make_pxe_live and opts.no_virt):
|
||||
# Make sure the kickstart isn't using autopart and only has a / mountpoint
|
||||
part_ok = not any(p for p in ks.handler.partition.partitions
|
||||
if p.mountpoint not in ["/", "swap"])
|
||||
if not part_ok or ks.handler.autopart.seen:
|
||||
errors.append("Filesystem images must use a single / part, not autopart or "
|
||||
"multiple partitions. swap is allowed but not used.")
|
||||
|
||||
if not opts.no_virt and ks.handler.reboot.action != KS_SHUTDOWN:
|
||||
errors.append("The kickstart must include shutdown when using virt installation.")
|
||||
|
||||
if errors:
|
||||
list(log.error(e) for e in errors)
|
||||
sys.exit(1)
|
||||
|
||||
# Make the image. Output of this is either a partitioned disk image or a fsimage
|
||||
try:
|
||||
disk_img = make_image(opts, ks)
|
||||
except InstallError as e:
|
||||
log.error("ERROR: Image creation failed: %s", e)
|
||||
sys.exit(1)
|
||||
|
||||
result_dir = None
|
||||
if not opts.image_only:
|
||||
if opts.make_iso:
|
||||
work_dir = tempfile.mkdtemp(prefix="lmc-work-")
|
||||
log.info("working dir is %s", work_dir)
|
||||
|
||||
if (opts.fs_image or opts.no_virt) and not opts.disk_image:
|
||||
# Create iso from a filesystem image
|
||||
disk_img = opts.fs_image or disk_img
|
||||
|
||||
if not make_squashfs(opts, disk_img, work_dir):
|
||||
log.error("squashfs.img creation failed")
|
||||
sys.exit(1)
|
||||
|
||||
with Mount(disk_img, opts="loop") as mount_dir:
|
||||
result_dir = make_livecd(opts, mount_dir, work_dir)
|
||||
else:
|
||||
# Create iso from a partitioned disk image
|
||||
disk_img = opts.disk_image or disk_img
|
||||
with PartitionMount(disk_img) as img_mount:
|
||||
if img_mount and img_mount.mount_dir:
|
||||
make_runtime(opts, img_mount.mount_dir, work_dir, calculate_disk_size(opts, ks)/1024.0)
|
||||
result_dir = make_livecd(opts, img_mount.mount_dir, work_dir)
|
||||
|
||||
# --iso-only removes the extra build artifacts, keeping only the boot.iso
|
||||
if opts.iso_only and result_dir:
|
||||
boot_iso = joinpaths(result_dir, "images/boot.iso")
|
||||
if not os.path.exists(boot_iso):
|
||||
log.error("%s is missing, skipping --iso-only.", boot_iso)
|
||||
else:
|
||||
iso_dir = tempfile.mkdtemp(prefix="lmc-result-")
|
||||
dest_file = joinpaths(iso_dir, opts.iso_name or "boot.iso")
|
||||
shutil.move(boot_iso, dest_file)
|
||||
shutil.rmtree(result_dir)
|
||||
result_dir = iso_dir
|
||||
|
||||
# cleanup the mess
|
||||
# cleanup work_dir?
|
||||
if disk_img and not (opts.keep_image or opts.disk_image or opts.fs_image):
|
||||
os.unlink(disk_img)
|
||||
log.info("Disk image erased")
|
||||
disk_img = None
|
||||
elif opts.make_appliance:
|
||||
if not opts.ks:
|
||||
networks = []
|
||||
else:
|
||||
networks = ks.handler.network.network
|
||||
make_appliance(opts.disk_image or disk_img, opts.app_name,
|
||||
opts.app_template, opts.app_file, networks, opts.ram,
|
||||
opts.vcpus or 1, opts.arch, opts.title, opts.project, opts.releasever)
|
||||
elif opts.make_pxe_live:
|
||||
work_dir = tempfile.mkdtemp(prefix="lmc-work-")
|
||||
log.info("working dir is %s", work_dir)
|
||||
disk_img = opts.fs_image or opts.disk_image or disk_img
|
||||
log.debug("disk image is %s", disk_img)
|
||||
|
||||
result_dir = make_live_images(opts, work_dir, disk_img)
|
||||
if result_dir is None:
|
||||
log.error("Creating PXE live image failed.")
|
||||
sys.exit(1)
|
||||
|
||||
if opts.result_dir != opts.tmp and result_dir:
|
||||
copytree(result_dir, opts.result_dir, preserve=False)
|
||||
shutil.rmtree(result_dir)
|
||||
result_dir = None
|
||||
try:
|
||||
# TODO - Better API than passing in opts
|
||||
(result_dir, disk_img) = run_creator(opts)
|
||||
except Exception as e: # pylint: disable=broad-except
|
||||
log.error(str(e))
|
||||
sys.exit(1)
|
||||
|
||||
log.info("SUMMARY")
|
||||
log.info("-------")
|
||||
|
||||
Loading…
Reference in New Issue
Block a user