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How to use prepare_disks method in autotest

Best Python code snippet using autotest_python

create_disk_images.py

Source:create_disk_images.py

...14import pymongo15import settings16import kpov_util17from util import write_default_config18def get_prepare_disks(db, course_id, task_id):19    prepare_disks_source = db.prepare_disks.find_one({'course_id': course_id, 'task_id': task_id})['source']20    d = {}21    exec(compile(prepare_disks_source, 'prepare_disks.py', 'exec'), globals(), d)22    return d['prepare_disks']23def create_snapshot(course_id, task_id, student_id, computer_name, disk_name, fmt='vmdk', overwrite=True):24    # add a hash to filename to allow multiple students using the same directory25    snap_hash = hashlib.sha1((student_id+course_id).encode()).hexdigest()[:3]26    snap = '{}-{}-{}-{}.{}'.format(27        task_id, snap_hash, computer_name, disk_name, fmt)28    backing = []29    template = disk_name + '.' + fmt30    task_dir = os.path.join(student_id, course_id, task_id)31    task_path = os.path.join(settings.STUDENT_DISK_PATH, task_dir)32    if not os.path.exists(os.path.join(task_path)) or overwrite:33        if not os.path.exists(os.path.join(settings.DISK_TEMPLATE_PATH, template)):34            raise Exception('template not found: {}'.format(template))35        # ensure task dir exists36        os.makedirs(task_path, exist_ok=True)37        if fmt in ('vdi', 'vmdk'):38            # donât use backing files, just copy the template39            os.chdir(task_path)40            if settings.STUDENT_DISK_COW:41                subprocess.call(['cp', '--reflink=always', os.path.join(settings.DISK_TEMPLATE_PATH, template), snap])42            else:43                subprocess.call(['cp', os.path.join(settings.DISK_TEMPLATE_PATH, template), snap])44        elif fmt == 'qcow2':45            # qemu-img create stores backing-file path as given, so link all46            # backing images to task directory where target image will be47            # generated48            os.chdir(settings.DISK_TEMPLATE_PATH) # qemu-img info is saner when called from image directory49            output = json.loads(subprocess.check_output(50                ['qemu-img', 'info', '--output=json', '--backing-chain', template], universal_newlines=True))51            backing_files = [i.get("backing-filename", None) for i in output]52            for image in [template] + [i for i in backing_files if i is not None]:53                backing += [image]54                dest = os.path.join(task_path, image)55                if not os.path.exists(dest):56                    os.symlink(os.path.join(settings.DISK_TEMPLATE_PATH, image), dest)57            # would be great if someone finds a way to avoid the stuff above58            # make overlay image59            os.chdir(task_path)60            print(task_path, backing_files)61            subprocess.call(['qemu-img', 'create',62                '-f', fmt,63                '-b', template, snap])64    return task_dir, snap, backing65def prepare_task_disks(course_id, task_id, student_id, fmt, computers):66    disks = collections.defaultdict(dict)67    templates = collections.defaultdict(dict)68    for computer in computers:69        lock_fp.write('creating computer ' + computer['name'] + '\n')70        if not computer['disks']:71            continue72        manual_disks = []73        try_automount = False74        g = guestfs.GuestFS()75        for disk in computer['disks']:76            lock_fp.write("register " + disk['name'] + '\n')77            task_dir, snap, backing = create_snapshot(course_id, task_id, student_id, computer['name'], disk['name'], fmt=fmt)78            snap_file = os.path.join(settings.STUDENT_DISK_PATH, task_dir, snap)79            if 'options' in disk:80                g.add_drive_opts(snap_file, **(disk['options']))81            else:82                g.add_drive(snap_file)83            if 'parts' in disk:84                for p in disk['parts']:85                    lock_fp.write("part {}: {}\n".format(86                        settings.GUESTFS_DEV_PREFIX + p['dev'], p['path']))87                    manual_disks.append(88                        (settings.GUESTFS_DEV_PREFIX + p['dev'], p['path'], p.get('options', None)))89            else:90                try_automount = True91            templates[disk['name']] = g92            lock_fp.write("  templates[{}] = {}\n".format(disk['name'], disk))93            # add disk or update existing record with new format94            disks[computer['name']][disk['name']] = [snap] + backing95        g.launch()96        mounted = set()97        if try_automount:98            roots = g.inspect_os()99            for root in roots:100                mps = g.inspect_get_mountpoints(root)101                lock_fp.write('detected: ' + str(mps) + '\n')102                for mountpoint, device in sorted(mps):103                    if mountpoint not in mounted:104                        try:105                            g.mount(device, mountpoint, )106                            lock_fp.write( 'mounted ' + device + ' on ' + mountpoint + '\n')107                        except RuntimeError as msg:108                            lock_fp.write( "%s (ignored)\n" % msg)109                        mounted.add(mountpoint)110        for device, mountpoint, opts in manual_disks:111            try:112                if opts is not None:113                    g.mount_options(opts, device, mountpoint)114                else:115                    g.mount(device, mountpoint)116                lock_fp.write('manually mounted ' + device + " on " + mountpoint + '\n')117            except RuntimeError as msg:118                lock_fp.write( "%s (ignored)\n" % msg)119    lock_fp.write("preparing disks\n")120    global_params = {121        'task_name': task_id,122        'course_id': course_id,123        'username': student_id124    }125    if 'TASK_URL' in vars(settings):126        global_params['task_url'] = settings.TASK_URL + '/' + course_id + '/'127    task_params = db.task_params.find_one({'course_id': course_id, 'task_id': task_id, 'student_id': student_id})['params']128    try:129        prepare_disks = get_prepare_disks(db, course_id, task_id)130        prepare_disks(templates, task_params, global_params)131    except Exception as ex:132        print("Error in prepare_disks:", ex)133    # pospravi za seboj.134    lock_fp.write("unmounting\n")135    for g in set(templates.values()):136        g.umount_all()137        g.close()138    return disks139if __name__ == '__main__':140    if len(sys.argv) != 1:141        print("Usage: {0}")142        print("Create the pending disk images")143    db = pymongo.MongoClient(settings.DB_URI).get_default_database()144    all_computers = collections.defaultdict(list)...

add_task.py

Source:add_task.py

1#!/usr/bin/env python32# SPDX-License-Identifier: AGPL-3.0-or-later3import glob4import inspect5import os6import settings7import sys8import urllib9import kpov_util10import pymongo11from bson import Binary12def task_check(results, params):13    data = {14        'results': json.dumps(results),15        'params': json.dumps({k: v for k, v in params.items() if k != 'token'}),16    }17    # should be an argument to task_check, but probably better not modify the signature18    if 'token' in params:19        data['token'] = params['token']20    response = urllib.request.urlopen(21        '{task_url}/{task_name}/results.json'.format(task_url=task_url, task_name=task_name),22        data=urllib.parse.urlencode(data).encode())23    response_dict = json.loads(response.read().decode())24    hints = response_dict.get('hints', [])25    hints = ['status: ' + response_dict.get('status', '')] + hints26    return response_dict.get('result', 'No result'), hints27uploading_task_check_source = inspect.getsource(task_check)28def gen_params(user_id, meta):29    return dict()30dummy_gen_params_source = inspect.getsource(gen_params)31if __name__ == '__main__':32    if len(sys.argv) < 2:33        print("Usage: {0} <task_dir> [task_name]".format(sys.argv[0]))34        exit(1)35    dirname = sys.argv[1]36    fname = os.path.join(dirname, 'task.py')37    try:38        course_id, task_id = sys.argv[2].split('/')39    except:40        normpath = os.path.normpath(dirname)41        course_id = os.path.split(os.path.dirname(normpath))[-1]42        task_id = os.path.basename(normpath)43    print((course_id, task_id))44    db = pymongo.MongoClient(settings.DB_URI).get_default_database()45    source = open(fname).read()46    d = {}47    # defines task, task_check, gen_params, prepare_disks, computers, params_meta48    exec(compile(source, fname, 'exec'), globals(), d)49    public_meta = {}50    for k, v in d['params_meta'].items():51        if v.get('public', False):52            public_meta[k] = v53    task_source = "\n\n".join([54        inspect.getsource(d['task']),55        uploading_task_check_source,56        "params_meta = {}".format(public_meta),57        dummy_gen_params_source])58    task_check_source = inspect.getsource(d['task_check'])59    gen_params_source = inspect.getsource(d['gen_params'])60    prepare_disks_source = inspect.getsource(d['prepare_disks'])61    x = list(d['params_meta'].keys()) # check for existence62    db.computers_meta.remove({'task_id': task_id, 'course_id': course_id})63    auto_networks = set([None])64    for k, v in d['computers'].items():65        for n in v.get('network_interfaces', []):66            auto_networks.add(n.get('network', None))67        db.computers_meta.update({68                'task_id': task_id,69                'course_id': course_id, 70                'name': k71            }, {'$set': v}, upsert=True)72    auto_networks.remove(None)73    db.networks.remove({'task_id': task_id, 'course_id': course_id})74    db.task_params.remove({'task_id': task_id, 'course_id': course_id})75    db.student_computers.remove({'task_id': task_id, 'course_id': course_id})76    db.prepare_disks.remove({'task_id': task_id, 'course_id': course_id})77    try:78        net_list = d['networks'].items()79    except:80        net_list = [(k, {'public': False}) for k in auto_networks]81    for k, v in net_list:82        db.networks.update({'task_id': task_id, 'course_id': course_id, 'name': k}, {'$set': v}, upsert=True)83    db.task_checkers.update({84            'task_id': task_id, 'course_id': course_id85        }, {'$set': {'source': task_check_source}}, upsert=True)86    db.tasks.update({87            'task_id': task_id, 'course_id': course_id88        },{'$set': {'source': task_source}}, upsert=True)89    db.prepare_disks.update({90            'task_id': task_id, 'course_id': course_id91        }, {'$set': {'source': prepare_disks_source}}, upsert=True)92    db.gen_params.update({'task_id': task_id, 'course_id': course_id},93        {'$set': {'source': gen_params_source}}, upsert=True)94    db.task_params_meta.update({'task_id': task_id, 'course_id': course_id},95        {'$set': {'params': d['params_meta']}}, upsert=True)96    db.task_instructions.update({'task_id': task_id, 'course_id': course_id}, 97        {'$set': d['instructions']}, upsert=True)98    for howto_dir in glob.glob(os.path.join(dirname, 'howtos/*')):99        howto_lang = os.path.basename(os.path.normpath(howto_dir))100        if howto_lang not in {'images'}:101            with open(os.path.join(howto_dir, 'index.html')) as f:102                db.howtos.update({103                        'task_id': task_id,104                        'course_id': course_id,105                        'lang': howto_lang},106                    {'$set': {'text': f.read()}}, upsert=True)107        else:108            for img in glob.glob(os.path.join(howto_dir, '*')):109                fname = os.path.basename(img)110                with open(img, 'rb') as f:111                    db.howto_images.update({112                            'task_id': task_id,113                            'course_id': course_id,114                            'fname': fname,115                        },...

diskhandler.py

Source:diskhandler.py

1#!/usr/bin/python2import argparse3import os4import sys5myfolder = os.path.dirname(os.path.abspath(__file__))6lib_path = os.path.join(myfolder, "../lib/")7sys.path.append(lib_path)8import format_disk9import mount_connected_disks10import storage_structure_handler11import subprocess12import time13import threading14import prepare_and_format_blockdevice15import BlockDeviceHandler16def rpienv_source():17    if not os.path.exists(str(myfolder) + '/.rpienv'):18        print("[ ENV ERROR ] " + str(myfolder) + "/.rpienv path not exits!")19        sys.exit(1)20    command = ['bash', '-c', 'source ' + str(myfolder) + '/.rpienv -s && env']21    proc = subprocess.Popen(command, stdout = subprocess.PIPE)22    for line in proc.stdout:23        if type(line) is bytes:24            line = line.decode("utf-8")25        try:26            name = line.partition("=")[0]27            value = line.partition("=")[2]28            if type(value) is unicode:29                value = value.encode('ascii','ignore')30            value = value.rstrip()31            os.environ[name] = value32        except Exception as e:33            if "name 'unicode' is not defined" != str(e):34                print(e)35    proc.communicate()36rpienv_source()37try:38    confhandler_path = os.path.join(os.path.dirname(os.environ['CONFIGHANDLERPY']))39    sys.path.append(confhandler_path)40    import ConfigHandler41    cfg = ConfigHandler.init()42except Exception as e:43    print("Import config handler failed: " + str(e))44parser = argparse.ArgumentParser()45parser.add_argument("-s", "--search_get_edit", action='store_true', help="Search devices (/dev/sda*), get label and uuid, set fstab file")46parser.add_argument("-m", "--mount",  action='store_true', help="Mount avaible devices (/media/*)")47parser.add_argument("-f", "--format_ext4",  action='store_true', help="Format device for ext4 filesystem")48parser.add_argument("-l", "--listdevs",  action='store_true', help="List connected devices with seversal commands")49parser.add_argument("-t", "--storage_structure",  action='store_true', help="Set storage folder structure")50parser.add_argument("-w", "--show_storage_structure",  action='store_true', help="Show storage folder structure")51parser.add_argument("-p", "--prepare_disks",  action='store_true', help="Prepare disks whick contains diskconf.json")52parser.add_argument("-c", "--change_dev_name",  action='store_true', help="Change disk label name")53args = parser.parse_args()54sge = args.search_get_edit55mount = args.mount56form = args.format_ext457listdev = args.listdevs58storage = args.storage_structure59show_storage_structure = args.show_storage_structure60prepare_disks = args.prepare_disks61change_dev_name =args.change_dev_name62def pre_check(info="CKECK"):63    state, msg = BlockDeviceHandler.is_any_device_avaible()64    if not state:65        print("{} There are no connected devices: {}".format(info, msg))66        sys.exit(444)67def main():68    if sge:69        pre_check("do_search_get_edit")70        mount_connected_disks.do_search_get_edit()71    if mount:72        pre_check("mount")73        mount_connected_disks.mount()74    if form:75        pre_check("format_disk")76        format_disk.main()77    if listdev:78        pre_check("hum_readable_list_devices")79        format_disk.hum_readable_list_devices()80    if storage:81        if str(cfg.get(section="STORAGE", option="external")).lower() == "true":82            set_extarnal_storage = True83        else:84            set_extarnal_storage = False85        external_storage_label = str(cfg.get(section="STORAGE", option="label")).rstrip()86        storage_structure_handler.create_storage_stucrure(set_extarnal_storage, external_storage_label)87    if show_storage_structure:88        if str(cfg.get(section="STORAGE", option="external")).lower() == "true":89            set_extarnal_storage = True90        else:91            set_extarnal_storage = False92        external_storage_label = str(cfg.get(section="STORAGE", option="label")).rstrip()93        text = storage_structure_handler.get_storage_structure_folders(set_extarnal_storage, external_storage_label)94    if prepare_disks:95        pre_check("prepare_block_device")96        if str(cfg.get(section="STORAGE", option="external")).lower() == "true":97            prepare_and_format_blockdevice.prepare_block_device()98        else:99            print("For automatic disk format based on diskconf.json switch STORAGE -> external True in rpitools_config.conf")100    if change_dev_name:101        pre_check("change_dev_name")102        format_disk.hum_readable_list_devices()103        device = raw_input("Select device path:\t/dev/sdaX: ")104        name = raw_input("New disk label name: ")105        mount_connected_disks.set_get_device_name(device, name)106if __name__ == "__main__":107    main()108    time.sleep(1)...

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