Add experimental Debian support.

Note, there is something weird with those images, as the will segfault
on the first run (I've checked that with latest Debian 11 images, maybe
it will change in the future), so there is forced reboot after certain
amount of time as a workaround.

box.py

@@ -23,9 +23,10 @@ __version__ = "1.3"
 CACHE_DIR = os.environ.get('XDG_CACHE_HOME', os.path.expanduser('~/.cache'))
 CLOUD_IMAGE = "ci.iso"
 FEDORA_RELEASE_MAP = {'32': '1.6', '33': '1.2', '34': '1.2'}
+DEBIAN_CODENAME_MAP = {'12': 'bookworm', '11': 'bullseye', '10': 'buster'}
 TYPE_MAP = {'HardDisk': 'disk', 'DVD': 'dvd', 'Floppy': 'floppy'}
 DISTRO_MAP = {'ubuntu': 'Ubuntu', 'fedora': 'Fedora',
-              'centos': 'Centos Stream'}
+              'centos': 'Centos Stream', 'debian': 'Debian'}
 META_DATA_TPL = string.Template('''\
 instance-id: $instance_id
 local-hostname: $vmhostname
@@ -160,8 +161,8 @@ _boxpy() {
                         _ssh_identityfile
                         ;;
                     --distro)
-                        COMPREPLY=( $(compgen -W "ubuntu fedora centos" \
-                                -- ${cur}) )
+                        COMPREPLY=( $(compgen -W "ubuntu fedora centos
+                            debian" -- ${cur}) )
                         ;;
                     --type)
                         COMPREPLY=( $(compgen -W "gui headless sdl separate" \
@@ -592,6 +593,9 @@ class OsTypes:
     def fedora(conf):
         return "Fedora_64"
 
+    def debian(conf):
+        return "Debian%s_64" % conf.version
+
 
 class VBoxManage:
     """
@@ -930,6 +934,7 @@ class VBoxManage:
 class Image:
     URL = ""
     IMG = ""
+    CHECKSUMTOOL = 'sha256sum'
 
     def __init__(self, vbox, version, arch, release, fname=None):
         self.vbox = vbox
@@ -980,7 +985,7 @@ class Image:
             return False
 
         if os.path.exists(os.path.join(CACHE_DIR, self._img_fname)):
-            cmd = ['sha256sum', os.path.join(CACHE_DIR, self._img_fname)]
+            cmd = [self.CHECKSUMTOOL, os.path.join(CACHE_DIR, self._img_fname)]
             calulated_sum = Run(cmd).stdout.split(' ')[0]
             LOG.details('Checksum for image: %s, expected: %s', calulated_sum,
                         expected_sum)
@@ -1033,6 +1038,30 @@ class Ubuntu(Image):
         return expected_sum
 
 
+class Debian(Image):
+    URL = "https://cloud.debian.org/images/cloud/%s/daily/latest/%s"
+    IMG = "debian-%s-generic-%s-daily.qcow2"
+    CHECKSUMTOOL = 'sha512sum'
+
+    def __init__(self, vbox, version, arch, release, fname=None):
+        super().__init__(vbox, version, arch, release)
+        self._img_fname = self.IMG % (version, arch)
+        self._img_url = self.URL % (release, self._img_fname)
+        self._checksum_file = 'SHA512SUMS'
+        self._checksum_url = self.URL % (release, self._checksum_file)
+
+    def _get_checksum(self, fname):
+        expected_sum = None
+        Run(['wget', self._checksum_url, '-q', '-O', fname])
+        with open(fname) as fobj:
+            for line in fobj.readlines():
+                if self._img_fname in line:
+                    expected_sum = line.split(' ')[0]
+                    break
+
+        return expected_sum
+
+
 class Fedora(Image):
     URL = ("https://download.fedoraproject.org/pub/fedora/linux/releases/%s/"
            "Cloud/%s/images/%s")
@@ -1131,13 +1160,20 @@ DISTROS = {'ubuntu': {'username': 'ubuntu',
                       'realname': 'centos',
                       'img_class': CentosStream,
                       'amd64': 'x86_64',
-                      'default_version': '8'}}
+                      'default_version': '8'},
+           'debian': {'username': 'debian',
+                      'realname': 'debian',
+                      'img_class': Debian,
+                      'amd64': 'amd64',
+                      'default_version': '11'}}
 
 
 def get_image_object(vbox, version, image='ubuntu', arch='amd64'):
     release = None
     if image == 'fedora':
         release = FEDORA_RELEASE_MAP[version]
+    if image == 'debian':
+        release = DEBIAN_CODENAME_MAP[version]
     return DISTROS[image]['img_class'](vbox, version, DISTROS[image]['amd64'],
                                        release, DISTROS[image].get('image'))
 
@@ -1263,6 +1299,7 @@ def vmcreate(args, conf=None):
            f'ssh://{username}@localhost:{vbox.vm_info["port"]}',
            'sudo cloud-init status']
     try:
+        counter = 0
         while True:
             out = Run(cmd)
             LOG.debug('Out: %s', out.stdout)
@@ -1282,6 +1319,15 @@ def vmcreate(args, conf=None):
                                           f'VM with ssh for user {username}. '
                                           f'Check output in debug mode.')
                 time.sleep(3)
+                counter += 1
+                if counter == 8 and conf.distro == 'debian':
+                    counter += 1
+                    # there is something odd with debian cloud images, as they
+                    # segfault on first run. after ~20 seconds there should
+                    # already be panic, reset machine should help
+                    vbox.poweroff()
+                    time.sleep(3)
+                    vbox.poweron(args.type)
                 continue
 
             LOG.info(' done')