Don't make boots be quiet

[forks/vmdebootstrap.git] / vmdebootstrap

diff --git a/vmdebootstrap b/vmdebootstrap
index 93bb2c6bce46b44760450e181cb79d84c16296da..9dd9ba54a6899324ed83704861a1a9eabffd5998 100755 (executable)
--- a/vmdebootstrap
+++ b/vmdebootstrap
@@ -1,5 +1,6 @@
 #!/usr/bin/python
-# Copyright 2011  Lars Wirzenius
+# Copyright 2011, 2012  Lars Wirzenius
+# Copyright 2012  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
@@ -36,6 +37,8 @@ class VmDebootstrap(cliapp.Application):
                                'create a disk image of size SIZE (%default)',
                                metavar='SIZE',
                                default='1G')
+        self.settings.string(['tarball'], "tar up the disk's contents in FILE",
+                             metavar='FILE')
         self.settings.string(['mirror'],
                              'use MIRROR as package source (%default)',
                              metavar='URL',
@@ -52,6 +55,7 @@ class VmDebootstrap(cliapp.Application):
                                   'install package in DEB file onto system '
                                     '(not from mirror)',
                                   metavar='DEB')
+        self.settings.boolean(['no-kernel'], 'do not install a linux package')
         self.settings.boolean(['enable-dhcp'], 'enable DHCP on eth0')
         self.settings.string(['root-password'], 'set root password',
                              metavar='PASSWORD')
@@ -74,21 +78,26 @@ class VmDebootstrap(cliapp.Application):
                                 'to sudo group')
 
     def process_args(self, args):
-        if not self.settings['image']:
-            raise cliapp.AppException('You must give image filename.')
-        if not self.settings['size']:
-            raise cliapp.AppException('You must give image size.')
+        if not self.settings['image'] and not self.settings['tarball']:
+            raise cliapp.AppException('You must give disk image filename, '
+                                      'or tarball filename')
+        if self.settings['image'] and not self.settings['size']:
+            raise cliapp.AppException('If disk image is specified, '
+                                      'You must give image size.')
 
         self.remove_dirs = []
         self.mount_points = []
 
         try:
-            self.create_empty_image()
-            self.partition_image()
-            self.install_mbr()
-            rootdev = self.setup_kpartx()
-            self.mkfs(rootdev)
-            rootdir = self.mount(rootdev)
+            if self.settings['image']:
+                self.create_empty_image()
+                self.partition_image()
+                self.install_mbr()
+                rootdev = self.setup_kpartx()
+                self.mkfs(rootdev)
+                rootdir = self.mount(rootdev)
+            else:
+                rootdir = self.mkdtemp()
             self.debootstrap(rootdir)
             self.set_hostname(rootdir)
             self.create_fstab(rootdir)
@@ -97,8 +106,11 @@ class VmDebootstrap(cliapp.Application):
             self.create_users(rootdir)
             self.remove_udev_persistent_rules(rootdir)
             self.setup_networking(rootdir)
-            self.install_extlinux(rootdev, rootdir)
             self.customize(rootdir)
+            if self.settings['image']:
+                self.install_extlinux(rootdev, rootdir)
+            if self.settings['tarball']:
+                self.create_tarball(rootdir)
         except BaseException, e:
             self.message('EEEK! Something bad happened...')
             self.cleanup_system()
@@ -107,6 +119,7 @@ class VmDebootstrap(cliapp.Application):
             self.cleanup_system()
 
     def message(self, msg):
+        logging.info(msg)
         if self.settings['verbose']:
             print msg
 
@@ -172,22 +185,24 @@ class VmDebootstrap(cliapp.Application):
     def debootstrap(self, rootdir):
         self.message('Debootstrapping')
 
-        if self.settings['arch'] == 'i386':
-            kernel_arch = '686'
-        else:
-            kernel_arch = self.settings['arch']
-        kernel_image = 'linux-image-2.6-%s' % kernel_arch
+        include = self.settings['package']
+
+        if not self.settings['no-kernel']:
+            if self.settings['arch'] == 'i386':
+                kernel_arch = '686'
+            else:
+                kernel_arch = self.settings['arch']
+            kernel_image = 'linux-image-2.6-%s' % kernel_arch
+            include.append(kernel_image)
 
-        include = [kernel_image] + self.settings['package']
         if self.settings['sudo'] and 'sudo' not in include:
             include.append('sudo')
 
-        self.runcmd(['debootstrap', 
-                     '--arch=%s' % self.settings['arch'],
-                     '--include=%s' % ','.join(include),
-                     self.settings['distribution'],
-                     rootdir, 
-                     self.settings['mirror']])
+        args = ['debootstrap', '--arch=%s' % self.settings['arch']]
+        if include: args.append('--include=%s' % ','.join(include))
+        args += [self.settings['distribution'],
+                 rootdir, self.settings['mirror']]
+        self.runcmd(args)
 
     def set_hostname(self, rootdir):
         hostname = self.settings['hostname']
@@ -314,7 +329,7 @@ timeout 1
 
 label linux
 kernel %(kernel)s
-append initrd=%(initrd)s root=UUID=%(uuid)s ro quiet %(kserial)s
+append initrd=%(initrd)s root=UUID=%(uuid)s ro %(kserial)s
 %(extserial)s
 ''' % {
     'kernel': kernel_image,
@@ -341,10 +356,11 @@ append initrd=%(initrd)s root=UUID=%(uuid)s ro quiet %(kserial)s
 
         self.message('Cleaning up')
 
-        for mount_point in self.mount_points:
-            self.runcmd(['umount', mount_point], ignore_fail=True)
+        if self.settings['image']:
+            for mount_point in self.mount_points:
+                self.runcmd(['umount', mount_point], ignore_fail=True)
 
-        self.runcmd(['kpartx', '-d', self.settings['image']], ignore_fail=True)
+            self.runcmd(['kpartx', '-d', self.settings['image']], ignore_fail=True)
         
         for dirname in self.remove_dirs:
             shutil.rmtree(dirname)
@@ -353,7 +369,14 @@ append initrd=%(initrd)s root=UUID=%(uuid)s ro quiet %(kserial)s
         script = self.settings['customize']
         if script:
             self.message('Running customize script %s' % script)
-            self.runcmd([script, rootdir])
+            with open('/dev/tty', 'w') as tty:
+                cliapp.runcmd([script, rootdir], stdout=tty, stderr=tty)
+
+    def create_tarball(self, rootdir):
+        # Create a tarball of the disk's contents
+        # shell out to runcmd since it more easily handles rootdir
+        self.message('Creating tarball of disk contents')
+        self.runcmd(['tar', '-cf', self.settings['tarball'], '-C', rootdir, '.'])
 
 
 if __name__ == '__main__':