#!/usr/bin/python3 # # Live Media Creator # # Copyright (C) 2011-2015 Red Hat, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # Author(s): Brian C. Lane # import logging log = logging.getLogger("livemedia-creator") import os import sys import uuid import tempfile import subprocess from time import sleep import shutil import argparse import hashlib import glob # Use pykickstart to calculate disk image size from pykickstart.parser import KickstartParser from pykickstart.version import makeVersion # Use Mako templates for appliance builder descriptions from mako.template import Template from mako.exceptions import text_error_template # Use the Lorax treebuilder branch for iso creation from pylorax import ArchData, setup_logging from pylorax.base import DataHolder from pylorax.treebuilder import TreeBuilder, RuntimeBuilder, udev_escape from pylorax.treebuilder import findkernels from pylorax.sysutils import joinpaths, remove from pylorax.imgutils import PartitionMount, mksparse, mkext4img, loop_detach from pylorax.imgutils import get_loop_name, dm_detach, mount, umount, Mount from pylorax.imgutils import mksquashfs, mkqcow2, mktar, mkrootfsimg from pylorax.imgutils import copytree from pylorax.executils import execWithRedirect, runcmd from pylorax.monitor import LogMonitor from pylorax.mount import IsoMountpoint # no-virt mode doesn't need libvirt, so make it optional try: import libvirt except ImportError: libvirt = None # Default parameters for rebuilding initramfs, override with --dracut-args DRACUT_DEFAULT = ["--xz", "--add", "livenet dmsquash-live convertfs pollcdrom", "--omit", "plymouth", "--no-hostonly", "--debug"] ROOT_PATH = "/mnt/sysimage/" RUNTIME = "images/install.img" class InstallError(Exception): pass class FakeDNF(object): """ A minimal DNF object suitable for passing to RuntimeBuilder lmc uses RuntimeBuilder to run the arch specific iso creation templates, so the the installroot config value is the important part of this. Everything else should be a nop. """ def __init__(self, conf): self.conf = conf def reset(self): pass class VirtualInstall(object): """ Run virt-install using an iso and a kickstart """ def __init__(self, iso, ks_paths, disk_img, img_size=2048, kernel_args=None, memory=1024, vnc=None, arch=None, log_check=None, virtio_host="127.0.0.1", virtio_port=6080, qcow2=False): """ Start the installation :param iso: Information about the iso to use for the installation :type iso: IsoMountpoint :param list ks_paths: Paths to kickstart files. All are injected, the first one is the one executed. :param str disk_img: Path to a disk image, created it it doesn't exist :param int img_size: The image size, in MiB, to create if it doesn't exist :param str kernel_args: Extra kernel arguments to pass on the kernel cmdline :param int memory: Amount of RAM to assign to the virt, in MiB :param str vnc: Arguments to pass to virt-install --graphics :param str arch: Optional architecture to use in the virt :param log_check: Method that returns True if the installation fails :type log_check: method :param str virtio_host: Hostname to connect virtio log to :param int virtio_port: Port to connect virtio log to :param bool qcow2: Set to True if disk_img is a qcow2 """ self.virt_name = "LiveOS-"+str(uuid.uuid4()) # add --graphics none later # add whatever serial cmds are needed later args = ["-n", self.virt_name, "-r", str(memory), "--noreboot", "--noautoconsole"] args.append("--graphics") if vnc: args.append(vnc) else: args.append("none") for ks in ks_paths: args.append("--initrd-inject") args.append(ks) disk_opts = "path={0}".format(disk_img) if qcow2: disk_opts += ",format=qcow2" else: disk_opts += ",format=raw" if not os.path.isfile(disk_img): mksparse(disk_img, img_size * 1024**2) args.append("--disk") args.append(disk_opts) if iso.stage2: disk_opts = "path={0},device=cdrom,readonly=on,shareable=on".format(iso.iso_path) args.append("--disk") args.append(disk_opts) extra_args = "ks=file:/{0}".format(os.path.basename(ks_paths[0])) if not vnc: extra_args += " inst.cmdline" if kernel_args: extra_args += " "+kernel_args if iso.stage2: extra_args += " stage2=live:CDLABEL={0}".format(udev_escape(iso.label)) args.append("--extra-args") args.append(extra_args) args.append("--location") args.append(iso.mount_dir) channel_args = "tcp,host={0}:{1},mode=connect,target_type=virtio" \ ",name=org.fedoraproject.anaconda.log.0".format( virtio_host, virtio_port) args.append("--channel") args.append(channel_args) if arch: args.append("--arch") args.append(arch) log.info("Running virt-install.") try: execWithRedirect("virt-install", args, raise_err=True) except subprocess.CalledProcessError as e: raise InstallError("Problem starting virtual install: %s" % e) conn = libvirt.openReadOnly(None) dom = conn.lookupByName(self.virt_name) # TODO: If vnc has been passed, we should look up the port and print that # for the user at this point while dom.isActive() and not log_check(): sys.stdout.write(".") sys.stdout.flush() sleep(10) print() if log_check(): log.info("Installation error detected. See logfile.") else: log.info("Install finished. Or at least virt shut down.") def destroy(self): """ Make sure the virt has been shut down and destroyed Could use libvirt for this instead. """ log.info("Shutting down %s", self.virt_name) subprocess.call(["virsh", "destroy", self.virt_name]) subprocess.call(["virsh", "undefine", self.virt_name]) def is_image_mounted(disk_img): """ Check to see if the disk_img is mounted :returns: True if disk_img is in /proc/mounts :rtype: bool """ with open("/proc/mounts") as mounts: for mnt in mounts: fields = mnt.split() if len(fields) > 2 and fields[1] == disk_img: return True return False def find_ostree_root(phys_root): """ Find root of ostree deployment :param str phys_root: Path to physical root :returns: Relative path of ostree deployment root :rtype: str :raise Exception: More than one deployment roots were found """ ostree_root = "" ostree_sysroots = glob.glob(joinpaths(phys_root, "ostree/boot.0/*/*/0")) if ostree_sysroots: if len(ostree_sysroots) > 1: raise Exception("Too many deployment roots found: %s" % ostree_sysroots) ostree_root = os.path.relpath(ostree_sysroots[0], phys_root) return ostree_root def get_arch(mount_dir): """ Get the kernel arch :returns: Arch of first kernel found at mount_dir/boot/ or i386 :rtype: str """ kernels = findkernels(mount_dir) if not kernels: return "i386" return kernels[0].arch def make_appliance(disk_img, name, template, outfile, networks=None, ram=1024, vcpus=1, arch=None, title="Linux", project="Linux", releasever="7.0"): """ Generate an appliance description file :param str disk_img: Full path of the disk image :param str name: Name of the appliance, passed to the template :param str template: Full path of Mako template :param str outfile: Full path of file to write, using template :param list networks: List of networks(str) from the kickstart :param int ram: Ram, in MiB, passed to template. Default is 1024 :param int vcpus: CPUs, passed to template. Default is 1 :param str arch: CPU architecture. Default is 'x86_64' :param str title: Title, passed to template. Default is 'Linux' :param str project: Project, passed to template. Default is 'Linux' :param str releasever: Release version, passed to template. Default is 17 """ if not (disk_img and template and outfile): return None log.info("Creating appliance definition using %s", template) if not arch: arch = "x86_64" log.info("Calculating SHA256 checksum of %s", disk_img) sha256 = hashlib.sha256() with open(disk_img) as f: while True: data = f.read(1024**2) if not data: break sha256.update(data) log.info("SHA256 of %s is %s", disk_img, sha256.hexdigest()) disk_info = DataHolder(name=os.path.basename(disk_img), format="raw", checksum_type="sha256", checksum=sha256.hexdigest()) try: result = Template(filename=template).render(disks=[disk_info], name=name, arch=arch, memory=ram, vcpus=vcpus, networks=networks, title=title, project=project, releasever=releasever) except Exception: log.error(text_error_template().render()) raise with open(outfile, "w") as f: f.write(result) def make_fsimage(diskimage, fsimage, img_size=None, label="Anaconda"): """ Copy the / partition of a partitioned disk image to an un-partitioned disk image. :param str diskimage: The full path to partitioned disk image with a / :param str fsimage: The full path of the output fs image file :param int img_size: Optional size of the fsimage in MiB or None to make it as small as possible :param str label: The label to apply to the image. Defaults to "Anaconda" """ with PartitionMount(diskimage) as img_mount: if not img_mount or not img_mount.mount_dir: return None log.info("Creating fsimage %s (%s)", fsimage, img_size or "minimized") if img_size: # convert to Bytes img_size *= 1024**2 mkext4img(img_mount.mount_dir, fsimage, size=img_size, label=label) def make_runtime(opts, mount_dir, work_dir): """ Make the squashfs image from a directory :param opts: options passed to livemedia-creator :type opts: argparse options :param str mount_dir: Directory tree to compress :param str work_dir: Output compressed image to work_dir+images/install.img """ kernel_arch = get_arch(mount_dir) # Fake dnf object fake_dbo = FakeDNF(conf=DataHolder(installroot=mount_dir)) # Fake arch with only basearch set arch = ArchData(kernel_arch) # TODO: Need to get release info from someplace... product = DataHolder(name=opts.project, version=opts.releasever, release="", variant="", bugurl="", isfinal=False) # This is a mounted image partition, cannot hardlink to it, so just use it # symlink mount_dir/images to work_dir/images so we don't run out of space os.makedirs(joinpaths(work_dir, "images")) rb = RuntimeBuilder(product, arch, fake_dbo) log.info("Creating runtime") rb.create_runtime(joinpaths(work_dir, RUNTIME), size=None) def rebuild_initrds_for_live(opts, sys_root_dir, results_dir): """ Rebuild intrds for pxe live image (root=live:http://) :param opts: options passed to livemedia-creator :type opts: argparse options :param str sys_root_dir: Path to root of the system :param str results_dir: Path of directory for storing results """ if not opts.dracut_args: dracut_args = DRACUT_DEFAULT else: dracut_args = [] for arg in opts.dracut_args: dracut_args += arg.split(" ", 1) log.info("dracut args = %s", dracut_args) dracut = ["dracut", "--nomdadmconf", "--nolvmconf"] + dracut_args kdir = "boot" if opts.ostree: kernels_dir = glob.glob(joinpaths(sys_root_dir, "boot/ostree/*"))[0] kdir = os.path.relpath(kernels_dir, sys_root_dir) kernels = [kernel for kernel in findkernels(sys_root_dir, kdir) if hasattr(kernel, "initrd")] if not kernels: raise Exception("No initrds found, cannot rebuild_initrds") # Hush some dracut warnings. TODO: bind-mount proc in place? open(joinpaths(sys_root_dir,"/proc/modules"),"w") if opts.ostree: # Dracut assumes to have some dirs in disk image # /var/tmp for temp files vartmp_dir = joinpaths(sys_root_dir, "var/tmp") if not os.path.isdir(vartmp_dir): os.mkdir(vartmp_dir) # /root (maybe not fatal) root_dir = joinpaths(sys_root_dir, "var/roothome") if not os.path.isdir(root_dir): os.mkdir(root_dir) # /tmp (maybe not fatal) tmp_dir = joinpaths(sys_root_dir, "sysroot/tmp") if not os.path.isdir(tmp_dir): os.mkdir(tmp_dir) for kernel in kernels: outfile = kernel.initrd.path + ".live" log.info("rebuilding %s", outfile) kver = kernel.version cmd = dracut + [outfile, kver] runcmd(cmd, root=sys_root_dir) new_initrd_path = joinpaths(results_dir, os.path.basename(kernel.initrd.path)) shutil.move(joinpaths(sys_root_dir, outfile), new_initrd_path) os.chmod(new_initrd_path, 0o644) shutil.copy2(joinpaths(sys_root_dir, kernel.path), results_dir) os.unlink(joinpaths(sys_root_dir,"/proc/modules")) def create_pxe_config(template, images_dir, live_image_name, add_args = None): """ Create template for pxe to live configuration :param str images_dir: Path of directory with images to be used :param str live_image_name: Name of live rootfs image file :param list add_args: Arguments to be added to initrd= pxe config """ add_args = add_args or [] kernels = [kernel for kernel in findkernels(images_dir, kdir="") if hasattr(kernel, "initrd")] if not kernels: return kernel = kernels[0] add_args_str = " ".join(add_args) try: result = Template(filename=template).render(kernel=kernel.path, initrd=kernel.initrd.path, liveimg=live_image_name, addargs=add_args_str) except Exception: log.error(text_error_template().render()) raise with open (joinpaths(images_dir, "PXE_CONFIG"), "w") as f: f.write(result) def make_livecd(opts, mount_dir, work_dir): """ Take the content from the disk image and make a livecd out of it :param opts: options passed to livemedia-creator :type opts: argparse options :param str mount_dir: Directory tree to compress :param str work_dir: Output compressed image to work_dir+images/install.img This uses wwood's squashfs live initramfs method: * put the real / into LiveOS/rootfs.img * make a squashfs of the LiveOS/rootfs.img tree * This is loaded by dracut when the cmdline is passed to the kernel: root=live:CDLABEL= rd.live.image """ kernel_arch = get_arch(mount_dir) arch = ArchData(kernel_arch) # TODO: Need to get release info from someplace... product = DataHolder(name=opts.project, version=opts.releasever, release="", variant="", bugurl="", isfinal=False) # Link /images to work_dir/images to make the templates happy if os.path.islink(joinpaths(mount_dir, "images")): os.unlink(joinpaths(mount_dir, "images")) execWithRedirect("/bin/ln", ["-s", joinpaths(work_dir, "images"), joinpaths(mount_dir, "images")]) # The templates expect the config files to be in /tmp/config_files # I think these should be release specific, not from lorax, but for now configdir = joinpaths(opts.lorax_templates,"live/config_files/") configdir_path = "tmp/config_files" fullpath = joinpaths(mount_dir, configdir_path) if os.path.exists(fullpath): remove(fullpath) copytree(configdir, fullpath) isolabel = opts.volid or "{0.name}-{0.version}-{1.basearch}".format(product, arch) if len(isolabel) > 32: isolabel = isolabel[:32] log.warn("Truncating isolabel to 32 chars: %s", isolabel) tb = TreeBuilder(product=product, arch=arch, domacboot=opts.domacboot, inroot=mount_dir, outroot=work_dir, runtime=RUNTIME, isolabel=isolabel, templatedir=joinpaths(opts.lorax_templates,"live/")) log.info("Rebuilding initrds") if not opts.dracut_args: dracut_args = DRACUT_DEFAULT else: dracut_args = [] for arg in opts.dracut_args: dracut_args += arg.split(" ", 1) log.info("dracut args = %s", dracut_args) tb.rebuild_initrds(add_args=dracut_args) log.info("Building boot.iso") tb.build() return work_dir def mount_boot_part_over_root(img_mount): """ Mount boot partition to /boot of root fs mounted in img_mount Used for OSTree so it finds deployment configurations on live rootfs param img_mount: object with mounted disk image root partition type img_mount: imgutils.PartitionMount """ root_dir = img_mount.mount_dir is_boot_part = lambda dir: os.path.exists(dir+"/loader.0") tmp_mount_dir = tempfile.mkdtemp() sys_root = find_ostree_root(root_dir) sysroot_boot_dir = None for dev, _size in img_mount.loop_devices: if dev is img_mount.mount_dev: continue try: mount("/dev/mapper/"+dev, mnt=tmp_mount_dir) if is_boot_part(tmp_mount_dir): umount(tmp_mount_dir) sysroot_boot_dir = joinpaths(joinpaths(root_dir, sys_root), "boot") mount("/dev/mapper/"+dev, mnt=sysroot_boot_dir) break else: umount(tmp_mount_dir) except subprocess.CalledProcessError as e: log.debug("Looking for boot partition error: %s", e) remove(tmp_mount_dir) return sysroot_boot_dir def novirt_log_check(log_check, proc): """ Check to see if there has been an error in the logs :param log_check: method to call to check for an error in the logs :param proc: Popen object for the anaconda process :returns: True if the process has been terminated The log_check method should return a True if an error has been detected. When an error is detected the process is terminated and this returns True """ if log_check(): proc.terminate() return True return False def novirt_install(opts, disk_img, disk_size, repo_url): """ Use Anaconda to install to a disk image :param opts: options passed to livemedia-creator :type opts: argparse options :param str disk_img: The full path to the disk image to be created :param int disk_size: The size of the disk_img in MiB :param str repo_url: The url of the repository to use for the installation This method makes sure SELinux is permissive during the install, runs anaconda to create the image and then based on the opts passed create a qcow2 image or tarfile. """ import selinux # Set selinux to Permissive if it is Enforcing selinux_enforcing = False if selinux.is_selinux_enabled() and selinux.security_getenforce(): selinux_enforcing = True selinux.security_setenforce(0) # Clean up /tmp/ from previous runs to prevent stale info from being used for path in ["/tmp/yum.repos.d/", "/tmp/yum.cache/"]: if os.path.isdir(path): shutil.rmtree(path) args = ["--kickstart", opts.ks[0], "--cmdline", "--repo", repo_url] if opts.anaconda_args: for arg in opts.anaconda_args: args += arg.split(" ", 1) if opts.proxy: args += ["--proxy", opts.proxy] if opts.armplatform: args += ["--armplatform", opts.armplatform] if opts.make_iso or opts.make_fsimage: # Make a blank fs image args += ["--dirinstall"] mkext4img(None, disk_img, label=opts.fs_label, size=disk_size * 1024**2) if not os.path.isdir(ROOT_PATH): os.mkdir(ROOT_PATH) mount(disk_img, opts="loop", mnt=ROOT_PATH) elif opts.make_tar: args += ["--dirinstall"] # Install directly into ROOT_PATH, make sure it starts clean if os.path.exists(ROOT_PATH): shutil.rmtree(ROOT_PATH) if not os.path.isdir(ROOT_PATH): os.mkdir(ROOT_PATH) else: args += ["--image", disk_img] # Create the sparse image mksparse(disk_img, disk_size * 1024**2) log_monitor = LogMonitor(timeout=opts.timeout) args += ["--remotelog", "%s:%s" % (log_monitor.host, log_monitor.port)] # Make sure anaconda has the right product and release os.environ["ANACONDA_PRODUCTNAME"] = opts.project os.environ["ANACONDA_PRODUCTVERSION"] = opts.releasever log.info("Running anaconda.") try: execWithRedirect("anaconda", args, raise_err=True, reset_lang=False, env_add={"ANACONDA_PRODUCTNAME": opts.project, "ANACONDA_PRODUCTVERSION": opts.releasever}, callback=lambda p: not novirt_log_check(log_monitor.server.log_check, p)) # Make sure the new filesystem is correctly labeled args = ["-e", "/proc", "-e", "/sys", "-e", "/dev", "/etc/selinux/targeted/contexts/files/file_contexts", "/"] if opts.make_iso or opts.make_fsimage or opts.make_tar: execWithRedirect("setfiles", args, root=ROOT_PATH) else: with PartitionMount(disk_img) as img_mount: if img_mount and img_mount.mount_dir: execWithRedirect("setfiles", args, root=img_mount.mount_dir) except subprocess.CalledProcessError as e: log.error("Running anaconda failed: %s", e) raise InstallError("novirt_install failed") finally: log_monitor.shutdown() # Move the anaconda logs over to a log directory log_dir = os.path.abspath(os.path.dirname(opts.logfile)) log_anaconda = joinpaths(log_dir, "anaconda") if not os.path.isdir(log_anaconda): os.mkdir(log_anaconda) for l in glob.glob("/tmp/*log")+glob.glob("/tmp/anaconda-tb-*"): shutil.copy2(l, log_anaconda) os.unlink(l) if opts.make_iso or opts.make_fsimage: umount(ROOT_PATH) else: # If anaconda failed the disk image may still be in use by dm execWithRedirect("anaconda-cleanup", []) dm_name = os.path.splitext(os.path.basename(disk_img))[0] dm_path = "/dev/mapper/"+dm_name if os.path.exists(dm_path): dm_detach(dm_path) loop_detach(get_loop_name(disk_img)) if selinux_enforcing: selinux.security_setenforce(1) if opts.qcow2: log.info("Converting %s to qcow2", disk_img) qcow2_args = [] for arg in opts.qcow2_args: qcow2_args += arg.split(" ", 1) # convert the image to qcow2 format if "-O" not in qcow2_args: qcow2_args.extend(["-O", "qcow2"]) qcow2_img = tempfile.mktemp(prefix="disk", suffix=".img") execWithRedirect("qemu-img", ["convert"] + qcow2_args + [disk_img, qcow2_img], raise_err=True) execWithRedirect("mv", ["-f", qcow2_img, disk_img], raise_err=True) elif opts.make_tar: compress_args = [] for arg in opts.compress_args: compress_args += arg.split(" ", 1) rc = mktar(ROOT_PATH, disk_img, opts.compression, compress_args) shutil.rmtree(ROOT_PATH) if rc: raise InstallError("novirt_install mktar failed: rc=%s" % rc) def virt_install(opts, install_log, disk_img, disk_size): """ Use virt-install to install to a disk image :param opts: options passed to livemedia-creator :type opts: argparse options :param str install_log: The path to write the log from virt-install :param str disk_img: The full path to the disk image to be created :param int disk_size: The size of the disk_img in MiB This uses virt-install with a boot.iso and a kickstart to create a disk image and then optionally, based on the opts passed, creates tarfile. """ iso_mount = IsoMountpoint(opts.iso, opts.location) log_monitor = LogMonitor(install_log, timeout=opts.timeout) kernel_args = "" if opts.kernel_args: kernel_args += opts.kernel_args if opts.proxy: kernel_args += " proxy="+opts.proxy if opts.qcow2 and not opts.make_fsimage: # virt-install can't take all the qcow2 options so create the image first qcow2_args = [] for arg in opts.qcow2_args: qcow2_args += arg.split(" ", 1) mkqcow2(disk_img, disk_size*1024**2, qcow2_args) if opts.make_fsimage or opts.make_tar: diskimg_path = tempfile.mktemp(prefix="disk", suffix=".img") else: diskimg_path = disk_img try: virt = VirtualInstall(iso_mount, opts.ks, diskimg_path, disk_size, kernel_args, opts.ram, opts.vnc, opts.arch, log_check = log_monitor.server.log_check, virtio_host = log_monitor.host, virtio_port = log_monitor.port, qcow2=opts.qcow2) virt.destroy() log_monitor.shutdown() except InstallError as e: log.error("VirtualInstall failed: %s", e) raise finally: log.info("unmounting the iso") iso_mount.umount() if log_monitor.server.log_check(): if not log_monitor.server.error_line and opts.timeout: msg = "virt_install failed due to timeout" else: msg = "virt_install failed on line: %s" % log_monitor.server.error_line raise InstallError(msg) if opts.make_fsimage: make_fsimage(diskimg_path, disk_img, disk_size, label=opts.fs_label) os.unlink(diskimg_path) elif opts.make_tar: compress_args = [] for arg in opts.compress_args: compress_args += arg.split(" ", 1) with PartitionMount(diskimg_path) as img_mount: if img_mount and img_mount.mount_dir: rc = mktar(img_mount.mount_dir, disk_img, opts.compression, compress_args) os.unlink(diskimg_path) if rc: raise InstallError("virt_install failed") def make_squashfs(disk_img, work_dir, compression="xz"): """ Create a squashfs image of an unpartitioned filesystem disk image :param str disk_img: Path to the unpartitioned filesystem disk image :param str work_dir: Output compressed image to work_dir+images/install.img :param str compression: Compression type to use Take disk_img and put it into LiveOS/rootfs.img and squashfs this tree into work_dir+images/install.img """ liveos_dir = joinpaths(work_dir, "runtime/LiveOS") os.makedirs(liveos_dir) os.makedirs(os.path.dirname(joinpaths(work_dir, RUNTIME))) rc = execWithRedirect("/bin/ln", [disk_img, joinpaths(liveos_dir, "rootfs.img")]) if rc != 0: shutil.copy2(disk_img, joinpaths(liveos_dir, "rootfs.img")) mksquashfs(joinpaths(work_dir, "runtime"), joinpaths(work_dir, RUNTIME), compression) remove(joinpaths(work_dir, "runtime")) def make_image(opts, ks): """ Install to a disk image :param opts: options passed to livemedia-creator :type opts: argparse options :param str ks: Path to the kickstart to use for the installation :returns: Path of the image created :rtype: str Use virt-install or anaconda to install to a disk image. """ disk_size = 2 + sum(p.size for p in ks.handler.partition.partitions) log.info("disk_size = %sMiB", disk_size) if opts.image_name: disk_img = joinpaths(opts.result_dir, opts.image_name) else: disk_img = tempfile.mktemp(prefix="disk", suffix=".img", dir=opts.result_dir) log.info("disk_img = %s", disk_img) try: if opts.no_virt: method = ks.handler.method if method.method == "url": repo_url = method.url elif method.method == "nfs": if method.opts: repo_url = "nfs:%s:%s:%s" % (method.opts, method.server, method.dir) else: repo_url = "nfs:%s:%s" % (method.server, method.dir) else: raise InstallError("Unsupported installation method: %s" % method.method) novirt_install(opts, disk_img, disk_size, repo_url) else: install_log = os.path.abspath(os.path.dirname(opts.logfile))+"/virt-install.log" log.info("install_log = %s", install_log) virt_install(opts, install_log, disk_img, disk_size) except InstallError as e: log.error("Install failed: %s", e) if not opts.keep_image and os.path.exists(disk_img): log.info("Removing bad disk image") os.unlink(disk_img) raise log.info("Disk Image install successful") return disk_img def make_live_images(opts, work_dir, root_dir, rootfs_image=None, size=None): """ Create live images from direcory or rootfs image :param opts: options passed to livemedia-creator :type opts: argparse options :param str work_dir: Directory for storing results :param str root_dir: Root directory of live filesystem tree :param str rootfs_image: Path to live rootfs image to be used :returns: Path of directory with created images :rtype: str """ sys_root = "" if opts.ostree: sys_root = find_ostree_root(root_dir) squashfs_root_dir = joinpaths(work_dir, "squashfs_root") liveos_dir = joinpaths(squashfs_root_dir, "LiveOS") os.makedirs(liveos_dir) if rootfs_image: rc = execWithRedirect("/bin/ln", [rootfs_image, joinpaths(liveos_dir, "rootfs.img")]) if rc != 0: shutil.copy2(rootfs_image, joinpaths(liveos_dir, "rootfs.img")) else: log.info("Creating live rootfs image") mkrootfsimg(root_dir, joinpaths(liveos_dir, "rootfs.img"), "LiveOS", size=size, sysroot=sys_root) log.info("Packing live rootfs image") add_pxe_args = [] live_image_name = "live-rootfs.squashfs.img" mksquashfs(squashfs_root_dir, joinpaths(work_dir, live_image_name), opts.compression, opts.compress_args) remove(squashfs_root_dir) log.info("Rebuilding initramfs for live") rebuild_initrds_for_live(opts, joinpaths(root_dir, sys_root), work_dir) if opts.ostree: add_pxe_args.append("ostree=/%s" % sys_root) template = joinpaths(opts.lorax_templates, "pxe-live/pxe-config.tmpl") create_pxe_config(template, work_dir, live_image_name, add_pxe_args) return work_dir def main(): parser = argparse.ArgumentParser(description="Create Live Install Media", fromfile_prefix_chars="@") # These are mutually exclusive, one is required action = parser.add_mutually_exclusive_group(required=True) action.add_argument("--make-iso", action="store_true", help="Build a live iso") action.add_argument("--make-disk", action="store_true", help="Build a partitioned disk image") action.add_argument("--make-fsimage", action="store_true", help="Build a filesystem image") action.add_argument("--make-appliance", action="store_true", help="Build an appliance image and XML description") action.add_argument("--make-ami", action="store_true", help="Build an ami image") action.add_argument("--make-tar", action="store_true", help="Build a tar of the root filesystem") action.add_argument("--make-pxe-live", action="store_true", help="Build a live pxe boot squashfs image") action.add_argument("--make-ostree-live", action="store_true", help="Build a live pxe boot squashfs image of Atomic Host") parser.add_argument("--iso", type=os.path.abspath, help="Anaconda installation .iso path to use for virt-install") parser.add_argument("--ks", action="append", type=os.path.abspath, help="Kickstart file defining the install.") parser.add_argument("--image-only", action="store_true", help="Exit after creating fs/disk image.") parser.add_argument("--no-virt", action="store_true", help="Use Anaconda's image install instead of virt-install") parser.add_argument("--proxy", help="proxy URL to use for the install") parser.add_argument("--anaconda-arg", action="append", dest="anaconda_args", help="Additional argument to pass to anaconda (no-virt " "mode). Pass once for each argument") parser.add_argument("--armplatform", help="the platform to use when creating images for ARM, " "i.e., highbank, mvebu, omap, tegra, etc.") parser.add_argument("--location", default=None, type=os.path.abspath, help="location of iso directory tree with initrd.img " "and vmlinuz. Used to run virt-install with a " "newer initrd than the iso.") parser.add_argument("--logfile", default="./livemedia.log", type=os.path.abspath, help="Path to logfile") parser.add_argument("--lorax-templates", default="/usr/share/lorax/", type=os.path.abspath, help="Path to mako templates for lorax") parser.add_argument("--tmp", default="/var/tmp", type=os.path.abspath, help="Top level temporary directory") parser.add_argument("--resultdir", default=None, dest="result_dir", type=os.path.abspath, help="Directory to copy the resulting images and iso into. " "Defaults to the temporary working directory") parser.add_argument("--macboot", action="store_true", default=True, dest="domacboot") parser.add_argument("--nomacboot", action="store_false", dest="domacboot") image_group = parser.add_argument_group("disk/fs image arguments") image_group.add_argument("--disk-image", type=os.path.abspath, help="Path to existing disk image to use for creating final image.") image_group.add_argument("--keep-image", action="store_true", help="Keep raw disk image after .iso creation") image_group.add_argument("--fs-image", type=os.path.abspath, help="Path to existing filesystem image to use for creating final image.") image_group.add_argument("--image-name", default=None, help="Name of output file to create. Used for tar, fs and disk image. Default is a random name.") image_group.add_argument("--fs-label", default="Anaconda", help="Label to set on fsimage, default is 'Anaconda'") image_group.add_argument("--qcow2", action="store_true", help="Create qcow2 image instead of raw sparse image when making disk images.") image_group.add_argument("--qcow2-arg", action="append", dest="qcow2_args", default=[], help="Arguments to pass to qemu-img. Pass once for each argument") image_group.add_argument("--compression", default="xz", help="Compression binary for make-tar. xz, lzma, gzip, and bzip2 are supported. xz is the default.") image_group.add_argument("--compress-arg", action="append", dest="compress_args", default=[], help="Arguments to pass to compression. Pass once for each argument") # Group of arguments for appliance creation app_group = parser.add_argument_group("appliance arguments") app_group.add_argument("--app-name", default=None, help="Name of appliance to pass to template") app_group.add_argument("--app-template", default=None, help="Path to template to use for appliance data.") app_group.add_argument("--app-file", default="appliance.xml", help="Appliance template results file.") # Group of arguments to pass to virt-install if not libvirt: virt_group = parser.add_argument_group("virt-install arguments (DISABLED -- no libvirt)") else: virt_group = parser.add_argument_group("virt-install arguments") virt_group.add_argument("--ram", metavar="MEMORY", type=int, default=1024, help="Memory to allocate for installer in megabytes.") virt_group.add_argument("--vcpus", default=1, help="Passed to --vcpus command") virt_group.add_argument("--vnc", help="Passed to --graphics command") virt_group.add_argument("--arch", default=None, help="Passed to --arch command") virt_group.add_argument("--kernel-args", help="Additional argument to pass to the installation kernel") # dracut arguments dracut_group = parser.add_argument_group("dracut arguments") dracut_group.add_argument("--dracut-arg", action="append", dest="dracut_args", help="Argument to pass to dracut when " "rebuilding the initramfs. Pass this " "once for each argument. NOTE: this " "overrides the default. (default: %s)" % (DRACUT_DEFAULT,)) # pxe to live arguments pxelive_group = parser.add_argument_group("pxe to live arguments") pxelive_group.add_argument("--live-rootfs-size", type=int, default=0, help="Size of root filesystem of live image in GiB") pxelive_group.add_argument("--live-rootfs-keep-size", action="store_true", help="Keep the original size of root filesystem in live image") parser.add_argument("--title", default="Linux Live Media", help="Substituted for @TITLE@ in bootloader config files") parser.add_argument("--project", default="Linux", help="substituted for @PROJECT@ in bootloader config files") parser.add_argument("--releasever", default="22", help="substituted for @VERSION@ in bootloader config files") parser.add_argument("--volid", default=None, help="volume id") parser.add_argument("--squashfs_args", help="additional squashfs args") parser.add_argument("--timeout", default=None, type=int, help="Cancel installer after X minutes") opts = parser.parse_args() setup_logging(opts.logfile, log) log.debug( opts ) # Check for invalid combinations of options, print all the errors and exit. errors = [] if not opts.disk_image and not opts.fs_image and not opts.ks: errors.append("Image creation requires a kickstart file") if opts.ks and not os.path.exists(opts.ks[0]): errors.append("kickstart file (%s) is missing." % opts.ks[0]) if opts.make_iso and not os.path.exists( opts.lorax_templates): errors.append("The lorax templates directory (%s) doesn't " "exist." % opts.lorax_templates) if opts.result_dir and os.path.exists(opts.result_dir): errors.append("The results_dir (%s) should not exist, please delete or " "move its contents" % opts.result_dir) if opts.iso and not os.path.exists(opts.iso): errors.append("The iso %s is missing." % opts.iso) if opts.disk_image and not os.path.exists(opts.disk_image): errors.append("The disk image %s is missing." % opts.disk_image) if opts.fs_image and not os.path.exists(opts.fs_image): errors.append("The filesystem image %s is missing." % opts.fs_image) is_install = not (opts.disk_image or opts.fs_image) if is_install and not opts.no_virt and not opts.iso: errors.append("virt install needs an install iso.") if opts.volid and len(opts.volid) > 32: errors.append("the volume id cannot be longer than 32 characters") if is_install and not opts.no_virt and not libvirt: errors.append("virt install requires libvirt-python3 to be installed.") if is_install and not opts.no_virt \ and not os.path.exists("/usr/bin/virt-install"): errors.append("virt-install needs to be installed.") if is_install and opts.no_virt \ and not os.path.exists("/usr/sbin/anaconda"): errors.append("no-virt requires anaconda to be installed.") if opts.make_appliance and not opts.app_template: opts.app_template = joinpaths(opts.lorax_templates, "appliance/libvirt.tmpl") if opts.make_appliance and not os.path.exists(opts.app_template): errors.append("The appliance template (%s) doesn't " "exist" % opts.app_template) if opts.image_name and os.path.exists(joinpaths(opts.result_dir, opts.image_name)): errors.append("The disk image to be created should not exist.") if opts.qcow2 and not os.path.exists("/usr/bin/qemu-img"): errors.append("qcow2 requires the qemu-img utility to be installed.") if opts.qcow2 and opts.make_iso: errors.append("qcow2 cannot be used to make a bootable iso.") if opts.make_fsimage and opts.qcow2: errors.append("qcow2 cannot be used to make filesystem images.") if opts.make_tar and opts.qcow2: errors.append("qcow2 cannot be used to make a tar.") if os.getuid() != 0: errors.append("You need to run this as root") if errors: list(log.error(e) for e in errors) sys.exit(1) # Default to putting results into tmp if not opts.result_dir: opts.result_dir = opts.tmp else: os.makedirs(opts.result_dir) # AMI image is just a fsimage with an AMI label if opts.make_ami: opts.make_fsimage = True if not opts.image_name: opts.image_name = "ami-root.img" if opts.fs_label == "Anaconda": opts.fs_label = "AMI" elif opts.make_tar: if not opts.image_name: opts.image_name = "root.tar.xz" if opts.compression == "xz" and not opts.compress_args: opts.compress_args = ["-9"] if opts.app_file: opts.app_file = joinpaths(opts.result_dir, opts.app_file) if opts.make_ostree_live: opts.make_pxe_live = True opts.ostree = True else: opts.ostree = False tempfile.tempdir = opts.tmp disk_img = None # Parse the kickstart if opts.ks: ks_version = makeVersion() ks = KickstartParser(ks_version, errorsAreFatal=False, missingIncludeIsFatal=False) ks.readKickstart(opts.ks[0]) # Make the disk or filesystem image if not opts.disk_image and not opts.fs_image: errors = [] if opts.no_virt and ks.handler.method.method not in ("url", "nfs"): errors.append("Only url and nfs install methods are currently supported. Please " "fix your kickstart file." ) if ks.handler.displaymode.displayMode is not None: errors.append("The kickstart must not set a display mode (text, cmdline, " "graphical), this will interfere with livemedia-creator.") if opts.make_fsimage: # 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 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) if not opts.image_only: result_dir = None if opts.make_iso: work_dir = tempfile.mkdtemp() 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 make_squashfs(disk_img, work_dir) 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) result_dir = make_livecd(opts, img_mount.mount_dir, work_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, opts.arch, opts.title, opts.project, opts.releasever) elif opts.make_pxe_live: work_dir = tempfile.mkdtemp() log.info("working dir is %s", work_dir) if (opts.fs_image or opts.no_virt) and not opts.disk_image: # Create pxe live images from a filesystem image disk_img = opts.fs_image or disk_img with Mount(disk_img, opts="loop") as mnt_dir: result_dir = make_live_images(opts, work_dir, mnt_dir, rootfs_image=disk_img) else: # Create pxe live images from a partitioned disk image disk_img = opts.disk_image or disk_img is_root_part = None if opts.ostree: is_root_part = lambda dir: os.path.exists(dir+"/ostree/deploy") with PartitionMount(disk_img, mount_ok=is_root_part) as img_mount: if img_mount and img_mount.mount_dir: try: mounted_sysroot_boot_dir = None if opts.ostree: mounted_sysroot_boot_dir = mount_boot_part_over_root(img_mount) if opts.live_rootfs_keep_size: size = img_mount.mount_size / 1024**3 else: size = opts.live_rootfs_size or None result_dir = make_live_images(opts, work_dir, img_mount.mount_dir, size=size) finally: if mounted_sysroot_boot_dir: umount(mounted_sysroot_boot_dir) if opts.result_dir != opts.tmp and result_dir: copytree(result_dir, opts.result_dir) shutil.rmtree(result_dir) log.info("SUMMARY") log.info("-------") log.info("Logs are in %s", os.path.abspath(os.path.dirname(opts.logfile))) if disk_img: log.info("Disk image is at %s", disk_img) if opts.make_appliance: log.info("Appliance description is in %s", opts.app_file) log.info("Results are in %s", opts.result_dir) sys.exit( 0 ) if __name__ == '__main__': main()