Add --hostname option.

[forks/vmdebootstrap.git] / vmdebootstrap

diff --git a/vmdebootstrap b/vmdebootstrap
index 84ee0079749ebbd98ba2b1af76ae3a89670db3c5..19238c7dab98deacb8d4aaa2bff42d3d9314d32f 100755 (executable)
--- a/vmdebootstrap
+++ b/vmdebootstrap
@@ -15,6 +15,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import cliapp
+import crypt
 import logging
 import os
 import re
@@ -52,6 +53,20 @@ class VmDebootstrap(cliapp.Application):
                                          'release to use (%default)',
                                          metavar='NAME',
                                          default='stable')
+        self.settings.add_string_list_setting(['package'],
+                                              'install PACKAGE onto system')
+        self.settings.add_boolean_setting(['enable-dhcp'],
+                                          'enable DHCP on eth0')
+        self.settings.add_string_setting(['root-password'],
+                                         'set root password',
+                                         metavar='PASSWORD')
+        self.settings.add_string_setting(['customize'],
+                                         'run SCRIPT after setting up system',
+                                         metavar='SCRIPT')
+        self.settings.add_string_setting(['hostname'],
+                                         'set name to HOSTNAME (%default)',
+                                         metavar='HOSTNAME',
+                                         default='debian')
 
     def process_args(self, args):
         if not self.settings['image']:
@@ -70,8 +85,12 @@ class VmDebootstrap(cliapp.Application):
             self.mkfs(rootdev)
             rootdir = self.mount(rootdev)
             self.debootstrap(rootdir)
+            self.set_hostname(rootdir)
             self.set_root_password(rootdir)
+            self.remove_udev_persistent_rules(rootdir)
+            self.setup_networking(rootdir)
             self.install_extlinux(rootdev, rootdir)
+            self.customize(rootdir)
         except:
             self.cleanup()
             raise
@@ -89,7 +108,7 @@ class VmDebootstrap(cliapp.Application):
                              **kwargs)
         out, err = p.communicate(stdin)
         if p.returncode != 0:
-            msg = 'command failed: %s\n%s' % (argv, err)
+            msg = 'command failed: %s\n%s\n%s' % (argv, out, err)
             logging.error(msg)
             if not ignore_fail:
                 raise cliapp.AppException(msg)
@@ -150,7 +169,7 @@ class VmDebootstrap(cliapp.Application):
             kernel_arch = self.settings['arch']
         kernel_image = 'linux-image-2.6-%s' % kernel_arch
 
-        include = [kernel_image]
+        include = [kernel_image] + self.settings['package']
 
         self.runcmd(['debootstrap', 
                      '--arch=%s' % self.settings['arch'],
@@ -159,9 +178,45 @@ class VmDebootstrap(cliapp.Application):
                      rootdir, 
                      self.settings['mirror']])
 
+    def set_hostname(self, rootdir):
+        hostname = self.settings['hostname']
+        f = open(os.path.join(rootdir, 'etc', 'hostname'), 'w')
+        f.write(hostname)
+        f.close()
+
     def set_root_password(self, rootdir):
-        self.message('Removing root password')
-        self.runcmd(['chroot', rootdir, 'passwd', '-d', 'root'])
+        if self.settings['root-password']:
+            self.message('Setting root password')
+            encrypted = crypt.crypt(self.settings['root-password'], '..')
+            self.runcmd(['chroot', rootdir, 'usermod', '-p', encrypted, 
+                         'root'])
+        else:
+            self.message('Locking root password')
+            self.runcmd(['chroot', rootdir, 'passwd', '-l', 'root'])
+        
+    def remove_udev_persistent_rules(self, rootdir):
+        self.message('Removing udev persistent cd and net rules')
+        for x in ['70-persistent-cd.rules', '70-persistent-net.rules']:
+            pathname = os.path.join(rootdir, 'etc', 'udev', 'rules.d', x)
+            if os.path.exists(pathname):
+                logging.debug('rm %s' % pathname)
+                os.remove(pathname)
+            else:
+                logging.debug('not removing non-existent %s' % pathname)
+
+    def setup_networking(self, rootdir):
+        self.message('Setting up networking')
+        
+        f = open(os.path.join(rootdir, 'etc', 'network', 'interfaces'), 'w')
+        f.write('auto lo\n')
+        f.write('iface lo inet loopback\n')
+        
+        if self.settings['enable-dhcp']:
+            f.write('\n')
+            f.write('allow-hotplug eth0\n')
+            f.write('iface eth0 inet dhcp\n')
+            
+        f.close()
 
     def install_extlinux(self, rootdev, rootdir):
         self.message('Installing extlinux')
@@ -191,7 +246,7 @@ timeout 1
 
 label linux
 kernel %(kernel)s
-append initrd=%(initrd)s root=UUID=%(uuid)s ro
+append initrd=%(initrd)s root=UUID=%(uuid)s ro quiet
 ''' % {
     'kernel': kernel_image,
     'initrd': initrd_image,
@@ -216,6 +271,12 @@ append initrd=%(initrd)s root=UUID=%(uuid)s ro
         for dirname in self.remove_dirs:
             shutil.rmtree(dirname)
 
+    def customize(self, rootdir):
+        script = self.settings['customize']
+        if script:
+            self.message('Running customize script %s' % script)
+            self.runcmd([script, rootdir])
+
 
 if __name__ == '__main__':
     VmDebootstrap().run()