diff options
Diffstat (limited to 'virtualbox-ssh.write')
| -rwxr-xr-x | virtualbox-ssh.write | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/virtualbox-ssh.write b/virtualbox-ssh.write new file mode 100755 index 00000000..774f2b4f --- /dev/null +++ b/virtualbox-ssh.write @@ -0,0 +1,211 @@ +#!/usr/bin/python +# Copyright (C) 2012-2015 Codethink Limited +# +# 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; version 2 of the License. +# +# 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 <http://www.gnu.org/licenses/>. + + +'''A Morph deployment write extension for deploying to VirtualBox via ssh. + +VirtualBox is assumed to be running on a remote machine, which is +accessed over ssh. The machine gets created, but not started. + +See file virtualbox-ssh.write.help for documentation + +''' + + +import cliapp +import os +import re +import sys +import time +import tempfile +import urlparse + +import morphlib.writeexts + + +class VirtualBoxPlusSshWriteExtension(morphlib.writeexts.WriteExtension): + + def process_args(self, args): + if len(args) != 2: + raise cliapp.AppException('Wrong number of command line args') + + temp_root, location = args + ssh_host, vm_name, vdi_path = self.parse_location(location) + autostart = self.get_environment_boolean('AUTOSTART') + + vagrant = self.get_environment_boolean('VAGRANT') + + fd, raw_disk = tempfile.mkstemp() + os.close(fd) + self.create_local_system(temp_root, raw_disk) + + try: + self.transfer_and_convert_to_vdi( + raw_disk, ssh_host, vdi_path) + self.create_virtualbox_guest(ssh_host, vm_name, vdi_path, + autostart, vagrant) + except BaseException: + sys.stderr.write('Error deploying to VirtualBox') + os.remove(raw_disk) + cliapp.ssh_runcmd(ssh_host, ['rm', '-f', vdi_path]) + raise + else: + os.remove(raw_disk) + self.status( + msg='Virtual machine %(vm_name)s has been created', + vm_name=vm_name) + + def parse_location(self, location): + '''Parse the location argument to get relevant data.''' + + x = urlparse.urlparse(location) + if x.scheme != 'vbox+ssh': + raise cliapp.AppException( + 'URL schema must be vbox+ssh in %s' % location) + m = re.match('^/(?P<guest>[^/]+)(?P<path>/.+)$', x.path) + if not m: + raise cliapp.AppException('Cannot parse location %s' % location) + return x.netloc, m.group('guest'), m.group('path') + + def transfer_and_convert_to_vdi(self, raw_disk, ssh_host, vdi_path): + '''Transfer raw disk image to VirtualBox host, and convert to VDI.''' + + self.status(msg='Transfer disk and convert to VDI') + + st = os.lstat(raw_disk) + xfer_hole_path = morphlib.util.get_data_path('xfer-hole') + recv_hole = morphlib.util.get_data('recv-hole') + + ssh_remote_cmd = [ + 'sh', '-c', recv_hole, + 'dummy-argv0', 'vbox', vdi_path, str(st.st_size), + ] + + cliapp.runcmd( + ['python', xfer_hole_path, raw_disk], + ['ssh', ssh_host] + map(cliapp.shell_quote, ssh_remote_cmd), + stdout=None, stderr=None) + + def virtualbox_version(self, ssh_host): + 'Get the version number of the VirtualBox running on the remote host.' + + # --version gives a build id, which looks something like + # 1.2.3r456789, so we need to strip the suffix off and get a tuple + # of the (major, minor, patch) version, since comparing with a + # tuple is more reliable than a string and more convenient than + # comparing against the major, minor and patch numbers directly + self.status(msg='Checking version of remote VirtualBox') + build_id = cliapp.ssh_runcmd(ssh_host, ['VBoxManage', '--version']) + version_string = re.match(r"^([0-9\.]+).*$", build_id.strip()).group(1) + return tuple(int(s or '0') for s in version_string.split('.')) + + def create_virtualbox_guest(self, ssh_host, vm_name, vdi_path, autostart, + vagrant): + '''Create the VirtualBox virtual machine.''' + + self.status(msg='Create VirtualBox virtual machine') + + ram_mebibytes = str(self.get_ram_size() / (1024**2)) + + vcpu_count = str(self.get_vcpu_count()) + + if not vagrant: + hostonly_iface = self.get_host_interface(ssh_host) + + if self.virtualbox_version(ssh_host) < (4, 3, 0): + sataportcount_option = '--sataportcount' + else: + sataportcount_option = '--portcount' + + commands = [ + ['createvm', '--name', vm_name, '--ostype', 'Linux26_64', + '--register'], + ['modifyvm', vm_name, '--ioapic', 'on', + '--memory', ram_mebibytes, '--cpus', vcpu_count], + ['storagectl', vm_name, '--name', 'SATA Controller', + '--add', 'sata', '--bootable', 'on', sataportcount_option, '2'], + ['storageattach', vm_name, '--storagectl', 'SATA Controller', + '--port', '0', '--device', '0', '--type', 'hdd', '--medium', + vdi_path], + ] + if vagrant: + commands[1].extend(['--nic1', 'nat', + '--natnet1', 'default']) + else: + commands[1].extend(['--nic1', 'hostonly', + '--hostonlyadapter1', hostonly_iface, + '--nic2', 'nat', '--natnet2', 'default']) + + attach_disks = self.parse_attach_disks() + for device_no, disk in enumerate(attach_disks, 1): + cmd = ['storageattach', vm_name, + '--storagectl', 'SATA Controller', + '--port', str(device_no), + '--device', '0', + '--type', 'hdd', + '--medium', disk] + commands.append(cmd) + + if autostart: + commands.append(['startvm', vm_name]) + + for command in commands: + argv = ['VBoxManage'] + command + cliapp.ssh_runcmd(ssh_host, argv) + + def get_host_interface(self, ssh_host): + host_ipaddr = os.environ.get('HOST_IPADDR') + netmask = os.environ.get('NETMASK') + + if host_ipaddr is None: + raise cliapp.AppException('HOST_IPADDR was not given') + + if netmask is None: + raise cliapp.AppException('NETMASK was not given') + + # 'VBoxManage list hostonlyifs' retrieves a list with the hostonly + # interfaces on the host. For each interface, the following lines + # are shown on top: + # + # Name: vboxnet0 + # GUID: 786f6276-656e-4074-8000-0a0027000000 + # Dhcp: Disabled + # IPAddress: 192.168.100.1 + # + # The following command tries to retrieve the hostonly interface + # name (e.g. vboxnet0) associated with the given ip address. + iface = None + lines = cliapp.ssh_runcmd(ssh_host, + ['VBoxManage', 'list', 'hostonlyifs']).splitlines() + for i, v in enumerate(lines): + if host_ipaddr in v: + iface = lines[i-3].split()[1] + break + + if iface is None: + iface = cliapp.ssh_runcmd(ssh_host, + ['VBoxManage', 'hostonlyif', 'create']) + # 'VBoxManage hostonlyif create' shows the name of the + # created hostonly interface inside single quotes + iface = iface[iface.find("'") + 1 : iface.rfind("'")] + cliapp.ssh_runcmd(ssh_host, + ['VBoxManage', 'hostonlyif', + 'ipconfig', iface, + '--ip', host_ipaddr, + '--netmask', netmask]) + + return iface + +VirtualBoxPlusSshWriteExtension().run() |