mirror of
https://pagure.io/fedora-infra/ansible.git
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aecec53380
Clean up syntax in all the base tasks. Add CONVENTIONS file for info on where things go. Tweak readme. Switch add playbooks to base role instead of task.
229 lines
8.0 KiB
Python
Executable File
229 lines
8.0 KiB
Python
Executable File
#!/usr/bin/env python
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# hardware-reinstall - Prepare a physical box in FI for re-install.
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# (c) 2012 Red Hat, Inc.
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# Ricky Elrod <codeblock@fedoraproject.org>
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# GPLv2+
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import os
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import sys
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import urllib
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import socket
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import subprocess
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import shlex
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import platform
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from optparse import OptionParser
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parser = OptionParser(
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description='Prepare a physical box in FI for re-install.')
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parser.add_option('-n',
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'--noop',
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action='store_true',
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help="Don't actually modify/download anything, just "
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"output stuff.")
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parser.add_option('-y',
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'--yes',
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action='store_true',
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default=False,
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dest="yes",
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help="Don't prompt to confirm, just do it.")
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parser.add_option('--ip',
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help="Override the IP of the box (passed to Grubby)")
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parser.add_option('--gw',
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help="Override the Gateway of the box (passed to Grubby)",
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dest='gateway')
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parser.add_option('--nm',
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help="Override the Netmask of the box (passed to Grubby)",
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dest='netmask')
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parser.add_option('--dns',
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help="Comma-delimited list of DNS resolvers (passed to "
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"Grubby)",
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dest='dns_resolvers')
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parser.add_option('--ks-file',
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help="Set the kickstart file to use (default:"
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"hardware-rhel-6-nohd)",
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default='hardware-rhel-6-nohd',
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dest='ks_file')
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(options, args) = parser.parse_args()
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if options.yes and options.noop:
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print "Don't ask AND don't do anything? Cmon"
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sys.exit(1)
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# 0. Get our hostname/primary ip
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# Get our primary IP by resolving our hostname.
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if options.ip:
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if not options.netmask:
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print 'You gave a custom IP and should specify a custom netmask too.'
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sys.exit(1)
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primary_ip = options.ip
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else:
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primary_ip = socket.gethostbyname(socket.gethostname())
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# so - anaconda sometimes doesn't seem to listen to our dns
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# when fetching kickstarts, etc - so if we give the ip of the host
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# if we're in 10.5.X network (phx2) then things just work.
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if primary_ip.startswith('10.5.'):
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basehost = "http://10.5.126.23/"
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else:
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basehost = "http://infrastructure.fedoraproject.org/"
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arch = platform.machine()
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VMLINUZ_URL = '%srepo/rhel/RHEL6-%s/images/pxeboot/vmlinuz' % (basehost, arch)
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INITRD_URL = '%srepo/rhel/RHEL6-%s/images/pxeboot/initrd.img' % (basehost,
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arch)
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# 1. Grab initrd and vmlinuz and throw them in /boot
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# FIXME - more error catching here
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if not options.noop:
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print 'Fetching vmlinuz'
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urllib.urlretrieve(VMLINUZ_URL, "/boot/vmlinuz-install")
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print 'Fetching initrd'
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urllib.urlretrieve(INITRD_URL, "/boot/initrd-install.img")
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# 2. Find our network info.
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if options.netmask:
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primary_netmask = options.netmask
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# We still have to get the MAC address, of the primary NIC
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# even if we specify a custom IP/NM.
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cmd = subprocess.Popen('/sbin/ifconfig', stdout=subprocess.PIPE)
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stdout = cmd.communicate()[0]
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i = 0
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lines = stdout.split("\n")
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for line in lines:
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if socket.gethostbyname(socket.gethostname()) in line:
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# Somewhere between EL6 and F17, ifconfig output has changed.
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# We accommodate for both.
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if ':' in line:
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# We are EL6
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if not options.netmask:
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# inet addr:10.5.127.51 Bcast:10.5.127.255 Mask:255.255.255.0
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primary_netmask = line.split('Mask:')[1]
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# On EL6 MAC addr is always one line before the IP address line
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primary_mac = lines[i - 1].split('HWaddr ')[1]
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else:
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# We are likely something newer
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if not options.netmask:
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# inet 10.10.10.113 netmask 255.255.255.0 broadcast
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# 10.10.10.255 # (cont. from above comment)
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primary_netmask = line.split('netmask ')[1].split(' ')[0]
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# On newer things, life gets harder. We have to continue
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# parsing lines until we get one with 'ether ' in it.
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# The range is the line we're on now -> the last line.
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for y in xrange(i, len(lines) - 1):
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if 'ether ' in lines[y]:
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primary_mac = lines[y].split('ether ')[1].split(' ')[0]
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break
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break
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i += 1
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# Gateway
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if options.gateway:
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primary_gateway = options.gateway
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else:
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cmd = subprocess.Popen(['/sbin/ip', 'route'], stdout=subprocess.PIPE)
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stdout = cmd.communicate()[0]
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for line in stdout.split("\n"):
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if 'default' in line:
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# default via 10.10.10.1 dev wlan0 proto static
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primary_gateway = line.split('via ')[1].split(' ')[0]
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break
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# And DNS servers
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if options.dns_resolvers:
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dns_resolvers = options.dns_resolvers
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else:
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dns_servers = []
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with open('/etc/resolv.conf', 'r') as f:
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for line in f.readlines():
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if 'nameserver' in line:
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dns = line.split(' ')
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if len(dns) == 2:
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dns_servers.append(dns[1].strip())
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dns_resolvers = ','.join(dns_servers)
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print '-' * 30
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print 'Primary IP: ' + primary_ip
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print 'Primary Netmask: ' + primary_netmask
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print 'Primary Gateway: ' + primary_gateway
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print 'Primary MAC Address: ' + primary_mac
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print 'DNS Resolvers: ' + dns_resolvers
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print '-' * 30
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# 3. Construct the grubby line.
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# grubby --add-kernel=/boot/vmlinuz-install \
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# --args="ks=http://infrastructure.fedoraproject.org/\
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# repo/rhel/ks/hardware-rhel-6-nohd \
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# repo=http://infrastructure.fedoraproject.org/repo/rhel/RHEL6-x86_64/ \
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# ksdevice=link ip=$IP gateway=$GATEWAY netmask=$NETMASK dns=$DNS" \
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# --title="install el6" --initrd=/boot/initrd-install.img
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grubby_command = '/sbin/grubby --add-kernel=/boot/vmlinuz-install ' \
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'--args="ks=%srepo/rhel/ks/%s ksdevice=%s ' \
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'ip=%s gateway=%s netmask=%s dns=%s repo=%srepo/rhel/RHEL6-x86_64/" ' \
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'--title="install el6" --initrd=/boot/initrd-install.img' % (basehost,
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options.ks_file,
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primary_mac,
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primary_ip,
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primary_gateway,
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primary_netmask,
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dns_resolvers,
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basehost)
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print 'This grubby command seems like it will work:'
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print '-' * 30
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print grubby_command
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print '-' * 30
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print 'Check the command and be sure that it looks correct.'
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if not options.noop:
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if not options.yes:
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print 'Type yes to continue, anything else to abort.'
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print 'By continuing, I will run the above command.'
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if raw_input('> ') != 'yes':
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print 'Removing downloaded files.'
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os.unlink('/boot/vmlinuz-install')
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os.unlink('/boot/initrd-install.img')
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print 'Aborting.'
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sys.exit(1)
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cmd = subprocess.Popen(shlex.split(grubby_command),
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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stdout, stderr = cmd.communicate()
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if stdout:
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print stdout
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if stderr:
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print "[STDERR output]"
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print stderr
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if not options.yes:
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raw_input(
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'Examine the above output, if it looks sane, press enter to '
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'continue.')
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print 'The next command I will run is:'
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print 'echo "savedefault --default=0 --once" | grub --batch'
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if not options.noop:
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cmd = subprocess.Popen(['/sbin/grub', '--batch'],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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stdout = cmd.communicate(input='savedefault --default=0 --once\n')
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print stdout[0]
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print 'Done.'
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print 'When you are ready, run: `shutdown -r now` to reboot.'
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print 'Go here:'
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print 'http://infrastructure.fedoraproject.org/infra/docs/kickstarts.txt'
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print 'And control-f for "Installation" (no quotes). Continue from there.'
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if options.noop:
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print '-' * 30
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print 'Script was run in "no-op" mode - none of the above commands ' \
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'actually ran.'
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print '-' * 30
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