Statistics
| Branch: | Tag: | Revision:

root / image_creator / dialog_menu.py @ 34e7a04a

History | View | Annotate | Download (29.1 kB)

1
# -*- coding: utf-8 -*-
2
#
3
# Copyright 2012 GRNET S.A. All rights reserved.
4
#
5
# Redistribution and use in source and binary forms, with or
6
# without modification, are permitted provided that the following
7
# conditions are met:
8
#
9
#   1. Redistributions of source code must retain the above
10
#      copyright notice, this list of conditions and the following
11
#      disclaimer.
12
#
13
#   2. Redistributions in binary form must reproduce the above
14
#      copyright notice, this list of conditions and the following
15
#      disclaimer in the documentation and/or other materials
16
#      provided with the distribution.
17
#
18
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
19
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
22
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
25
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29
# POSSIBILITY OF SUCH DAMAGE.
30
#
31
# The views and conclusions contained in the software and
32
# documentation are those of the authors and should not be
33
# interpreted as representing official policies, either expressed
34
# or implied, of GRNET S.A.
35

    
36
"""This module implements the "expert" mode of the dialog-based version of
37
snf-image-creator.
38
"""
39

    
40
import os
41
import textwrap
42
import StringIO
43
import json
44

    
45
from image_creator import __version__ as version
46
from image_creator.util import MD5, FatalError
47
from image_creator.output.dialog import GaugeOutput, InfoBoxOutput
48
from image_creator.kamaki_wrapper import Kamaki, ClientError
49
from image_creator.help import get_help_file
50
from image_creator.dialog_util import SMALL_WIDTH, WIDTH, \
51
    update_background_title, confirm_reset, confirm_exit, Reset, \
52
    extract_image, extract_metadata_string, add_cloud, edit_cloud
53

    
54
CONFIGURATION_TASKS = [
55
    ("Partition table manipulation", ["FixPartitionTable"],
56
        ["linux", "windows"]),
57
    ("File system resize",
58
        ["FilesystemResizeUnmounted", "FilesystemResizeMounted"],
59
        ["linux", "windows"]),
60
    ("Swap partition configuration", ["AddSwap"], ["linux"]),
61
    ("SSH keys removal", ["DeleteSSHKeys"], ["linux"]),
62
    ("Temporal RDP disabling", ["DisableRemoteDesktopConnections"],
63
        ["windows"]),
64
    ("SELinux relabeling at next boot", ["SELinuxAutorelabel"], ["linux"]),
65
    ("Hostname/Computer Name assignment", ["AssignHostname"],
66
        ["windows", "linux"]),
67
    ("Password change", ["ChangePassword"], ["windows", "linux"]),
68
    ("File injection", ["EnforcePersonality"], ["windows", "linux"])
69
]
70

    
71

    
72
class MetadataMonitor(object):
73
    """Monitors image metadata chages"""
74
    def __init__(self, session, meta):
75
        self.session = session
76
        self.meta = meta
77

    
78
    def __enter__(self):
79
        self.old = {}
80
        for (k, v) in self.meta.items():
81
            self.old[k] = v
82

    
83
    def __exit__(self, type, value, traceback):
84
        d = self.session['dialog']
85

    
86
        altered = {}
87
        added = {}
88

    
89
        for (k, v) in self.meta.items():
90
            if k not in self.old:
91
                added[k] = v
92
            elif self.old[k] != v:
93
                altered[k] = v
94

    
95
        if not (len(added) or len(altered)):
96
            return
97

    
98
        msg = "The last action has changed some image properties:\n\n"
99
        if len(added):
100
            msg += "New image properties:\n"
101
            for (k, v) in added.items():
102
                msg += '    %s: "%s"\n' % (k, v)
103
            msg += "\n"
104
        if len(altered):
105
            msg += "Updated image properties:\n"
106
            for (k, v) in altered.items():
107
                msg += '    %s: "%s" -> "%s"\n' % (k, self.old[k], v)
108
            msg += "\n"
109

    
110
        self.session['metadata'].update(added)
111
        self.session['metadata'].update(altered)
112
        d.msgbox(msg, title="Image Property Changes", width=SMALL_WIDTH)
113

    
114

    
115
def upload_image(session):
116
    """Upload the image to the storage service"""
117
    d = session["dialog"]
118
    image = session['image']
119
    meta = session['metadata']
120
    size = image.size
121

    
122
    if "account" not in session:
123
        d.msgbox("You need to select a valid cloud before you can upload "
124
                 "images to it", width=SMALL_WIDTH)
125
        return False
126

    
127
    while 1:
128
        if 'upload' in session:
129
            init = session['upload']
130
        elif 'OS' in meta:
131
            init = "%s.diskdump" % meta['OS']
132
        else:
133
            init = ""
134
        (code, answer) = d.inputbox("Please provide a filename:", init=init,
135
                                    width=WIDTH)
136

    
137
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
138
            return False
139

    
140
        filename = answer.strip()
141
        if len(filename) == 0:
142
            d.msgbox("Filename cannot be empty", width=SMALL_WIDTH)
143
            continue
144

    
145
        kamaki = Kamaki(session['account'], None)
146
        overwrite = []
147
        for f in (filename, "%s.md5sum" % filename, "%s.meta" % filename):
148
            if kamaki.object_exists(f):
149
                overwrite.append(f)
150

    
151
        if len(overwrite) > 0:
152
            if d.yesno("The following storage service object(s) already "
153
                       "exist(s):\n%s\nDo you want to overwrite them?" %
154
                       "\n".join(overwrite), width=WIDTH, defaultno=1):
155
                continue
156

    
157
        session['upload'] = filename
158
        break
159

    
160
    gauge = GaugeOutput(d, "Image Upload", "Uploading ...")
161
    try:
162
        out = image.out
163
        out.add(gauge)
164
        kamaki.out = out
165
        try:
166
            if 'checksum' not in session:
167
                md5 = MD5(out)
168
                session['checksum'] = md5.compute(image.device, size)
169

    
170
            try:
171
                # Upload image file
172
                with open(image.device, 'rb') as f:
173
                    session["pithos_uri"] = \
174
                        kamaki.upload(f, size, filename,
175
                                      "Calculating block hashes",
176
                                      "Uploading missing blocks")
177
                # Upload md5sum file
178
                out.output("Uploading md5sum file ...")
179
                md5str = "%s %s\n" % (session['checksum'], filename)
180
                kamaki.upload(StringIO.StringIO(md5str), size=len(md5str),
181
                              remote_path="%s.md5sum" % filename)
182
                out.success("done")
183

    
184
            except ClientError as e:
185
                d.msgbox(
186
                    "Error in storage service client: %s" % e.message,
187
                    title="Storage Service Client Error", width=SMALL_WIDTH)
188
                if 'pithos_uri' in session:
189
                    del session['pithos_uri']
190
                return False
191
        finally:
192
            out.remove(gauge)
193
    finally:
194
        gauge.cleanup()
195

    
196
    d.msgbox("Image file `%s' was successfully uploaded" % filename,
197
             width=SMALL_WIDTH)
198

    
199
    return True
200

    
201

    
202
def register_image(session):
203
    """Register image with the compute service"""
204
    d = session["dialog"]
205

    
206
    is_public = False
207

    
208
    if "account" not in session:
209
        d.msgbox("You need to select a valid cloud before you "
210
                 "can register an images with it", width=SMALL_WIDTH)
211
        return False
212

    
213
    if "pithos_uri" not in session:
214
        d.msgbox("You need to upload the image to the cloud before you can "
215
                 "register it", width=SMALL_WIDTH)
216
        return False
217

    
218
    while 1:
219
        (code, answer) = d.inputbox("Please provide a registration name:",
220
                                    width=WIDTH)
221
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
222
            return False
223

    
224
        name = answer.strip()
225
        if len(name) == 0:
226
            d.msgbox("Registration name cannot be empty", width=SMALL_WIDTH)
227
            continue
228

    
229
        ret = d.yesno("Make the image public?\\nA public image is accessible "
230
                      "by every user of the service.", defaultno=1,
231
                      width=WIDTH)
232
        if ret not in (0, 1):
233
            continue
234

    
235
        is_public = True if ret == 0 else False
236

    
237
        break
238

    
239
    metadata = {}
240
    metadata.update(session['metadata'])
241
    if 'task_metadata' in session:
242
        for key in session['task_metadata']:
243
            metadata[key] = 'yes'
244

    
245
    img_type = "public" if is_public else "private"
246
    gauge = GaugeOutput(d, "Image Registration", "Registering image ...")
247
    try:
248
        out = session['image'].out
249
        out.add(gauge)
250
        try:
251
            try:
252
                out.output("Registering %s image with the cloud ..." %
253
                           img_type)
254
                kamaki = Kamaki(session['account'], out)
255
                result = kamaki.register(name, session['pithos_uri'], metadata,
256
                                         is_public)
257
                out.success('done')
258
                # Upload metadata file
259
                out.output("Uploading metadata file ...")
260
                metastring = unicode(json.dumps(result, ensure_ascii=False))
261
                kamaki.upload(StringIO.StringIO(metastring),
262
                              size=len(metastring),
263
                              remote_path="%s.meta" % session['upload'])
264
                out.success("done")
265
                if is_public:
266
                    out.output("Sharing metadata and md5sum files ...")
267
                    kamaki.share("%s.meta" % session['upload'])
268
                    kamaki.share("%s.md5sum" % session['upload'])
269
                    out.success('done')
270
            except ClientError as e:
271
                d.msgbox("Error in storage service client: %s" % e.message)
272
                return False
273
        finally:
274
            out.remove(gauge)
275
    finally:
276
        gauge.cleanup()
277

    
278
    d.msgbox("%s image `%s' was successfully registered with the cloud as `%s'"
279
             % (img_type.title(), session['upload'], name), width=SMALL_WIDTH)
280
    return True
281

    
282

    
283
def modify_clouds(session):
284
    """Modify existing cloud accounts"""
285
    d = session['dialog']
286

    
287
    while 1:
288
        clouds = Kamaki.get_clouds()
289
        if not len(clouds):
290
            if not add_cloud(session):
291
                break
292
            continue
293

    
294
        choices = []
295
        for (name, cloud) in clouds.items():
296
            descr = cloud['description'] if 'description' in cloud else ''
297
            choices.append((name, descr))
298

    
299
        (code, choice) = d.menu(
300
            "In this menu you can edit existing cloud accounts or add new "
301
            " ones. Press <Edit> to edit an existing account or <Add> to add "
302
            " a new one. Press <Back> or hit <ESC> when done.", height=18,
303
            width=WIDTH, choices=choices, menu_height=10, ok_label="Edit",
304
            extra_button=1, extra_label="Add", cancel="Back", help_button=1,
305
            title="Clouds")
306

    
307
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
308
            return True
309
        elif code == d.DIALOG_OK:  # Edit button
310
            edit_cloud(session, choice)
311
        elif code == d.DIALOG_EXTRA:  # Add button
312
            add_cloud(session)
313

    
314

    
315
def delete_clouds(session):
316
    """Delete existing cloud accounts"""
317
    d = session['dialog']
318

    
319
    choices = []
320
    for (name, cloud) in Kamaki.get_clouds().items():
321
        descr = cloud['description'] if 'description' in cloud else ''
322
        choices.append((name, descr, 0))
323

    
324
    if len(choices) == 0:
325
        d.msgbox("No available clouds to delete!", width=SMALL_WIDTH)
326
        return True
327

    
328
    (code, to_delete) = d.checklist("Choose which cloud accounts to delete:",
329
                                    choices=choices, width=WIDTH)
330

    
331
    if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
332
        return False
333

    
334
    if not len(to_delete):
335
        d.msgbox("Nothing selected!", width=SMALL_WIDTH)
336
        return False
337

    
338
    if not d.yesno("Are you sure you want to remove the selected cloud "
339
                   "accounts?", width=WIDTH, defaultno=1):
340
        for i in to_delete:
341
            Kamaki.remove_cloud(i)
342
            if 'cloud' in session and session['cloud'] == i:
343
                del session['cloud']
344
                if 'account' in session:
345
                    del session['account']
346
    else:
347
        return False
348

    
349
    d.msgbox("%d cloud accounts were deleted." % len(to_delete),
350
             width=SMALL_WIDTH)
351
    return True
352

    
353

    
354
def kamaki_menu(session):
355
    """Show kamaki related actions"""
356
    d = session['dialog']
357
    default_item = "Cloud"
358

    
359
    if 'cloud' not in session:
360
        cloud = Kamaki.get_default_cloud_name()
361
        if cloud:
362
            session['cloud'] = cloud
363
            session['account'] = Kamaki.get_account(cloud)
364
            if not session['account']:
365
                del session['account']
366
        else:
367
            default_item = "Add/Edit"
368

    
369
    while 1:
370
        cloud = session["cloud"] if "cloud" in session else "<none>"
371
        if 'account' not in session and 'cloud' in session:
372
            cloud += " <invalid>"
373

    
374
        upload = session["upload"] if "upload" in session else "<none>"
375

    
376
        choices = [("Add/Edit", "Add/Edit cloud accounts"),
377
                   ("Delete", "Delete existing cloud accounts"),
378
                   ("Cloud", "Select cloud account to use: %s" % cloud),
379
                   ("Upload", "Upload image to the cloud"),
380
                   ("Register", "Register image with the cloud: %s" % upload)]
381

    
382
        (code, choice) = d.menu(
383
            text="Choose one of the following or press <Back> to go back.",
384
            width=WIDTH, choices=choices, cancel="Back", height=13,
385
            menu_height=5, default_item=default_item,
386
            title="Image Registration Menu")
387

    
388
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
389
            return False
390

    
391
        if choice == "Add/Edit":
392
            if modify_clouds(session):
393
                default_item = "Cloud"
394
        elif choice == "Delete":
395
            if delete_clouds(session):
396
                if len(Kamaki.get_clouds()):
397
                    default_item = "Cloud"
398
                else:
399
                    default_time = "Add/Edit"
400
            else:
401
                default_time = "Delete"
402
        elif choice == "Cloud":
403
            default_item = "Cloud"
404
            clouds = Kamaki.get_clouds()
405
            if not len(clouds):
406
                d.msgbox("No clouds available. Please add a new cloud!",
407
                         width=SMALL_WIDTH)
408
                default_item = "Add/Edit"
409
                continue
410

    
411
            if 'cloud' not in session:
412
                session['cloud'] = clouds.keys()[0]
413

    
414
            choices = []
415
            for name, info in clouds.items():
416
                default = 1 if session['cloud'] == name else 0
417
                descr = info['description'] if 'description' in info else ""
418
                choices.append((name, descr, default))
419

    
420
            (code, answer) = d.radiolist("Please select a cloud:",
421
                                         width=WIDTH, choices=choices)
422
            if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
423
                continue
424
            else:
425
                session['account'] = Kamaki.get_account(answer)
426

    
427
                if session['account'] is None:  # invalid account
428
                    if not d.yesno("The cloud %s' is not valid! Would you "
429
                                   "like to edit it?" % answer, width=WIDTH):
430
                        if edit_cloud(session, answer):
431
                            session['account'] = Kamaki.get_account(answer)
432
                            Kamaki.set_default_cloud(answer)
433

    
434
                if session['account'] is not None:
435
                    session['cloud'] = answer
436
                    Kamaki.set_default_cloud(answer)
437
                    default_item = "Upload"
438
                else:
439
                    del session['account']
440
                    del session['cloud']
441
        elif choice == "Upload":
442
            if upload_image(session):
443
                default_item = "Register"
444
            else:
445
                default_item = "Upload"
446
        elif choice == "Register":
447
            if register_image(session):
448
                return True
449
            else:
450
                default_item = "Register"
451

    
452

    
453
def add_property(session):
454
    """Add a new property to the image"""
455
    d = session['dialog']
456

    
457
    while 1:
458
        (code, answer) = d.inputbox("Please provide a name for a new image"
459
                                    " property:", width=WIDTH)
460
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
461
            return False
462

    
463
        name = answer.strip()
464
        if len(name) == 0:
465
            d.msgbox("A property name cannot be empty", width=SMALL_WIDTH)
466
            continue
467

    
468
        break
469

    
470
    while 1:
471
        (code, answer) = d.inputbox("Please provide a value for image "
472
                                    "property %s" % name, width=WIDTH)
473
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
474
            return False
475

    
476
        value = answer.strip()
477
        if len(value) == 0:
478
            d.msgbox("Value cannot be empty", width=SMALL_WIDTH)
479
            continue
480

    
481
        break
482

    
483
    session['metadata'][name] = value
484

    
485
    return True
486

    
487

    
488
def modify_properties(session):
489
    """Modify an existing image property"""
490
    d = session['dialog']
491

    
492
    while 1:
493
        choices = []
494
        for (key, val) in session['metadata'].items():
495
            choices.append((str(key), str(val)))
496

    
497
        (code, choice) = d.menu(
498
            "In this menu you can edit existing image properties or add new "
499
            "ones. Be careful! Most properties have special meaning and "
500
            "alter the image deployment behaviour. Press <HELP> to see more "
501
            "information about image properties. Press <BACK> when done.",
502
            height=18, width=WIDTH, choices=choices, menu_height=10,
503
            ok_label="Edit", extra_button=1, extra_label="Add", cancel="Back",
504
            help_button=1, title="Image Properties")
505

    
506
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
507
            return True
508
        # Edit button
509
        elif code == d.DIALOG_OK:
510
            (code, answer) = d.inputbox("Please provide a new value for the "
511
                                        "image property with name `%s':" %
512
                                        choice,
513
                                        init=session['metadata'][choice],
514
                                        width=WIDTH)
515
            if code not in (d.DIALOG_CANCEL, d.DIALOG_ESC):
516
                value = answer.strip()
517
                if len(value) == 0:
518
                    d.msgbox("Value cannot be empty!")
519
                    continue
520
                else:
521
                    session['metadata'][choice] = value
522
        # ADD button
523
        elif code == d.DIALOG_EXTRA:
524
            add_property(session)
525
        elif code == 'help':
526
            help_file = get_help_file("image_properties")
527
            assert os.path.exists(help_file)
528
            d.textbox(help_file, title="Image Properties", width=70, height=40)
529

    
530

    
531
def delete_properties(session):
532
    """Delete an image property"""
533
    d = session['dialog']
534

    
535
    choices = []
536
    for (key, val) in session['metadata'].items():
537
        choices.append((key, "%s" % val, 0))
538

    
539
    (code, to_delete) = d.checklist("Choose which properties to delete:",
540
                                    choices=choices, width=WIDTH)
541

    
542
    # If the user exits with ESC or CANCEL, the returned tag list is empty.
543
    for i in to_delete:
544
        del session['metadata'][i]
545

    
546
    cnt = len(to_delete)
547
    if cnt > 0:
548
        d.msgbox("%d image properties were deleted." % cnt, width=SMALL_WIDTH)
549
        return True
550
    else:
551
        return False
552

    
553

    
554
def exclude_tasks(session):
555
    """Exclude specific tasks from running during image deployment"""
556
    d = session['dialog']
557

    
558
    index = 0
559
    displayed_index = 1
560
    choices = []
561
    mapping = {}
562
    if 'excluded_tasks' not in session:
563
        session['excluded_tasks'] = []
564

    
565
    if -1 in session['excluded_tasks']:
566
        if not d.yesno("Image deployment configuration is disabled. "
567
                       "Do you wish to enable it?", width=SMALL_WIDTH):
568
            session['excluded_tasks'].remove(-1)
569
        else:
570
            return False
571

    
572
    for (msg, task, osfamily) in CONFIGURATION_TASKS:
573
        if session['metadata']['OSFAMILY'] in osfamily:
574
            checked = 1 if index in session['excluded_tasks'] else 0
575
            choices.append((str(displayed_index), msg, checked))
576
            mapping[displayed_index] = index
577
            displayed_index += 1
578
        index += 1
579

    
580
    while 1:
581
        (code, tags) = d.checklist(
582
            text="Please choose which configuration tasks you would like to "
583
                 "prevent from running during image deployment. "
584
                 "Press <No Config> to supress any configuration. "
585
                 "Press <Help> for more help on the image deployment "
586
                 "configuration tasks.",
587
            choices=choices, height=19, list_height=8, width=WIDTH,
588
            help_button=1, extra_button=1, extra_label="No Config",
589
            title="Exclude Configuration Tasks")
590

    
591
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
592
            return False
593
        elif code == d.DIALOG_HELP:
594
            help_file = get_help_file("configuration_tasks")
595
            assert os.path.exists(help_file)
596
            d.textbox(help_file, title="Configuration Tasks",
597
                      width=70, height=40)
598
        # No Config button
599
        elif code == d.DIALOG_EXTRA:
600
            session['excluded_tasks'] = [-1]
601
            session['task_metadata'] = ["EXCLUDE_ALL_TASKS"]
602
            break
603
        elif code == d.DIALOG_OK:
604
            session['excluded_tasks'] = []
605
            for tag in tags:
606
                session['excluded_tasks'].append(mapping[int(tag)])
607

    
608
            exclude_metadata = []
609
            for task in session['excluded_tasks']:
610
                exclude_metadata.extend(CONFIGURATION_TASKS[task][1])
611

    
612
            session['task_metadata'] = map(lambda x: "EXCLUDE_TASK_%s" % x,
613
                                           exclude_metadata)
614
            break
615

    
616
    return True
617

    
618

    
619
def sysprep(session):
620
    """Perform various system preperation tasks on the image"""
621
    d = session['dialog']
622
    image = session['image']
623

    
624
    # Is the image already shrinked?
625
    if 'shrinked' in session and session['shrinked']:
626
        msg = "It seems you have shrinked the image. Running system " \
627
              "preparation tasks on a shrinked image is dangerous."
628

    
629
        if d.yesno("%s\n\nDo you really want to continue?" % msg,
630
                   width=SMALL_WIDTH, defaultno=1):
631
            return
632

    
633
    wrapper = textwrap.TextWrapper(width=WIDTH - 5)
634

    
635
    help_title = "System Preperation Tasks"
636
    sysprep_help = "%s\n%s\n\n" % (help_title, '=' * len(help_title))
637

    
638
    syspreps = image.os.list_syspreps()
639

    
640
    if len(syspreps) == 0:
641
        d.msgbox("No system preparation task available to run!",
642
                 title="System Preperation", width=SMALL_WIDTH)
643
        return
644

    
645
    while 1:
646
        choices = []
647
        index = 0
648
        for sysprep in syspreps:
649
            name, descr = image.os.sysprep_info(sysprep)
650
            display_name = name.replace('-', ' ').capitalize()
651
            sysprep_help += "%s\n" % display_name
652
            sysprep_help += "%s\n" % ('-' * len(display_name))
653
            sysprep_help += "%s\n\n" % wrapper.fill(" ".join(descr.split()))
654
            enabled = 1 if sysprep.enabled else 0
655
            choices.append((str(index + 1), display_name, enabled))
656
            index += 1
657

    
658
        (code, tags) = d.checklist(
659
            "Please choose which system preparation tasks you would like to "
660
            "run on the image. Press <Help> to see details about the system "
661
            "preparation tasks.", title="Run system preparation tasks",
662
            choices=choices, width=70, ok_label="Run", help_button=1)
663

    
664
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
665
            return False
666
        elif code == d.DIALOG_HELP:
667
            d.scrollbox(sysprep_help, width=WIDTH)
668
        elif code == d.DIALOG_OK:
669
            # Enable selected syspreps and disable the rest
670
            for i in range(len(syspreps)):
671
                if str(i + 1) in tags:
672
                    image.os.enable_sysprep(syspreps[i])
673
                else:
674
                    image.os.disable_sysprep(syspreps[i])
675

    
676
            if len([s for s in image.os.list_syspreps() if s.enabled]) == 0:
677
                d.msgbox("No system preperation task is selected!",
678
                         title="System Preperation", width=SMALL_WIDTH)
679
                continue
680

    
681
            infobox = InfoBoxOutput(d, "Image Configuration")
682
            try:
683
                image.out.add(infobox)
684
                try:
685
                    # The checksum is invalid. We have mounted the image rw
686
                    if 'checksum' in session:
687
                        del session['checksum']
688

    
689
                    # Monitor the metadata changes during syspreps
690
                    with MetadataMonitor(session, image.os.meta):
691
                        try:
692
                            image.os.do_sysprep()
693
                            infobox.finalize()
694
                        except FatalError as e:
695
                            title = "System Preparation"
696
                            d.msgbox("System Preparation failed: %s" % e,
697
                                     title=title, width=SMALL_WIDTH)
698
                finally:
699
                    image.out.remove(infobox)
700
            finally:
701
                infobox.cleanup()
702
            break
703
    return True
704

    
705

    
706
def shrink(session):
707
    """Shrink the image"""
708
    d = session['dialog']
709
    image = session['image']
710

    
711
    shrinked = 'shrinked' in session and session['shrinked']
712

    
713
    if shrinked:
714
        d.msgbox("The image is already shrinked!", title="Image Shrinking",
715
                 width=SMALL_WIDTH)
716
        return True
717

    
718
    msg = "This operation will shrink the last partition of the image to " \
719
          "reduce the total image size. If the last partition is a swap " \
720
          "partition, then this partition is removed and the partition " \
721
          "before that is shrinked. The removed swap partition will be " \
722
          "recreated during image deployment."
723

    
724
    if not d.yesno("%s\n\nDo you want to continue?" % msg, width=WIDTH,
725
                   height=12, title="Image Shrinking"):
726
        with MetadataMonitor(session, image.meta):
727
            infobox = InfoBoxOutput(d, "Image Shrinking", height=4)
728
            image.out.add(infobox)
729
            try:
730
                image.shrink()
731
                infobox.finalize()
732
            finally:
733
                image.out.remove(infobox)
734

    
735
        session['shrinked'] = True
736
        update_background_title(session)
737
    else:
738
        return False
739

    
740
    return True
741

    
742

    
743
def customization_menu(session):
744
    """Show image customization menu"""
745
    d = session['dialog']
746

    
747
    choices = [("Sysprep", "Run various image preparation tasks"),
748
               ("Shrink", "Shrink image"),
749
               ("View/Modify", "View/Modify image properties"),
750
               ("Delete", "Delete image properties"),
751
               ("Exclude", "Exclude various deployment tasks from running")]
752

    
753
    default_item = 0
754

    
755
    actions = {"Sysprep": sysprep,
756
               "Shrink": shrink,
757
               "View/Modify": modify_properties,
758
               "Delete": delete_properties,
759
               "Exclude": exclude_tasks}
760
    while 1:
761
        (code, choice) = d.menu(
762
            text="Choose one of the following or press <Back> to exit.",
763
            width=WIDTH, choices=choices, cancel="Back", height=13,
764
            menu_height=len(choices), default_item=choices[default_item][0],
765
            title="Image Customization Menu")
766

    
767
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
768
            break
769
        elif choice in actions:
770
            default_item = [entry[0] for entry in choices].index(choice)
771
            if actions[choice](session):
772
                default_item = (default_item + 1) % len(choices)
773

    
774

    
775
def main_menu(session):
776
    """Show the main menu of the program"""
777
    d = session['dialog']
778

    
779
    update_background_title(session)
780

    
781
    choices = [("Customize", "Customize image & cloud deployment options"),
782
               ("Register", "Register image to a cloud"),
783
               ("Extract", "Dump image to local file system"),
784
               ("Reset", "Reset everything and start over again"),
785
               ("Help", "Get help for using snf-image-creator")]
786

    
787
    default_item = "Customize"
788

    
789
    actions = {"Customize": customization_menu, "Register": kamaki_menu,
790
               "Extract": extract_image}
791
    while 1:
792
        (code, choice) = d.menu(
793
            text="Choose one of the following or press <Exit> to exit.",
794
            width=WIDTH, choices=choices, cancel="Exit", height=13,
795
            default_item=default_item, menu_height=len(choices),
796
            title="Image Creator for synnefo (snf-image-creator version %s)" %
797
                  version)
798

    
799
        if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
800
            if confirm_exit(d):
801
                break
802
        elif choice == "Reset":
803
            if confirm_reset(d):
804
                d.infobox("Resetting snf-image-creator. Please wait ...",
805
                          width=SMALL_WIDTH)
806
                raise Reset
807
        elif choice == "Help":
808
            d.msgbox("For help, check the online documentation:\n\nhttp://www"
809
                     ".synnefo.org/docs/snf-image-creator/latest/",
810
                     width=WIDTH, title="Help")
811
        elif choice in actions:
812
            actions[choice](session)
813

    
814
# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :