def backup_and_cleanup(dockid):
cont = SessContainer(dockid)
cont.stop()
cont.delete(backup=True)
JBoxSessionProps.detach_instance(Compute.get_install_id(), cont.get_name(), Compute.get_instance_id())
JBoxd.publish_perf_counters()
JBoxd.publish_anticipated_load()
def backup_and_cleanup(dockid):
cont = SessContainer(dockid)
cont.stop()
cont.delete(backup=True)
JBoxSessionProps.detach_instance(Compute.get_install_id(), cont.get_name(), Compute.get_instance_id())
JBoxd.publish_perf_counters()
JBoxd.publish_anticipated_load()
def publish_sessions():
iid = Compute.get_instance_id()
for c in SessContainer.session_containers(allcontainers=True):
if ("Names" in c) and (c["Names"] is not None):
sessname = SessContainer(c["Id"]).get_name()
if sessname:
JBoxSessionProps.attach_instance(Compute.get_install_id(), sessname, iid, c["Status"])
def get_disk_for_user(user_email):
JBoxEBSVol.log_debug("creating EBS volume for %s", user_email)
if not JBoxEBSVol.HAS_EBS:
raise Exception("EBS disks not enabled")
disk_id = JBoxEBSVol._reserve_disk_id()
if disk_id is None:
raise Exception("No free disk available")
sess_id = unique_sessname(user_email)
sess_props = JBoxSessionProps(sess_id, create=True, user_id=user_email)
if sess_props.is_new:
sess_props.save()
snap_id = sess_props.get_snapshot_id()
if snap_id is None:
snap_id = JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT
JBoxEBSVol.log_debug("will use snapshot id %s for %s", snap_id, user_email)
_dev_path, mnt_path = CloudHost.create_new_volume(snap_id, disk_id, JBoxEBSVol.FS_LOC, tag=user_email)
ebsvol = JBoxEBSVol(mnt_path, user_email=user_email)
if snap_id == JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT:
JBoxEBSVol.log_debug("creating home folder on blank volume for %s", user_email)
ebsvol.restore_user_home()
ebsvol.restore()
#else:
# snap_age_days = CloudHost.get_snapshot_age(snap_id).total_seconds()/(60*60*24)
# if snap_age_days > 7:
# ebsvol.restore_user_home()
JBoxEBSVol.log_debug("setting up instance configuration on disk for %s", user_email)
ebsvol.setup_instance_config()
return ebsvol
def publish_sessions():
iid = Compute.get_instance_id()
for c in SessContainer.session_containers(allcontainers=True):
if ('Names' in c) and (c['Names'] is not None):
sessname = SessContainer(c['Id']).get_name()
if sessname:
JBoxSessionProps.attach_instance(Compute.get_install_id(),
sessname, iid, c["Status"])
def publish_anticipated_load(session_name=None):
iid = Compute.get_instance_id()
if session_name is None:
nactive = BaseContainer.num_active(BaseContainer.SFX_INT)
else:
JBoxSessionProps.attach_instance(Compute.get_install_id(), session_name, iid, "Preparing")
nactive = BaseContainer.num_active(BaseContainer.SFX_INT) + 1
cont_load_pct = min(100, max(0, nactive * 100 / SessContainer.MAX_CONTAINERS))
self_load = max(Compute.get_instance_stats(iid, 'Load'), cont_load_pct)
Compute.publish_stats("Load", "Percent", self_load)
accept = Compute.should_accept_session(is_proposed_cluster_leader())
JBoxInstanceProps.set_props(Compute.get_install_id(), iid, load=self_load, accept=accept)
def _backup(self, clear_volume=False):
sess_props = JBoxSessionProps(self.sessname)
desc = sess_props.get_user_id() + " JuliaBox Backup"
disk_id = self.disk_path.split('/')[-1]
snap_id = CloudHost.snapshot_volume(dev_id=disk_id, tag=self.sessname, description=desc,
wait_till_complete=False)
#old_snap_id = sess_props.get_snapshot_id()
#sess_props.set_snapshot_id(snap_id)
#sess_props.save()
#if old_snap_id is not None:
# CloudHost.delete_snapshot(old_snap_id)
return snap_id
def publish_anticipated_load(session_name=None):
iid = Compute.get_instance_id()
if session_name is None:
nactive = BaseContainer.num_active(BaseContainer.SFX_INT)
else:
JBoxSessionProps.attach_instance(Compute.get_install_id(), session_name, iid, "Preparing")
nactive = BaseContainer.num_active(BaseContainer.SFX_INT) + 1
cont_load_pct = min(100, max(0, nactive * 100 / SessContainer.MAX_CONTAINERS))
self_load = max(Compute.get_instance_stats(iid, 'Load'), cont_load_pct)
Compute.publish_stats("Load", "Percent", self_load)
accept = Compute.should_accept_session(is_proposed_cluster_leader())
JBoxInstanceProps.set_props(Compute.get_install_id(), iid, load=self_load, accept=accept)
def test():
yday = datetime.datetime.now() - datetime.timedelta(hours=24)
stats = JBoxAccountingV2.get_stats(dates=(yday, ))
TestDBTables.log_debug("stats for yesterday: %s", repr(stats))
stats = JBoxAccountingV2.get_stats()
TestDBTables.log_debug("stats for today: %s", repr(stats))
sprops = JBoxSessionProps(unique_sessname('*****@*****.**'))
TestDBTables.log_debug(
"JBoxSessionProps. user_id: %s, snapshot_id: %s, message: %s",
sprops.get_user_id(), sprops.get_snapshot_id(),
sprops.get_message())
JBoxDynConfig.set_cluster_leader(TESTCLSTR, 'testinstance')
assert JBoxDynConfig.get_cluster_leader(TESTCLSTR) == 'testinstance'
JBoxDynConfig.unset_cluster_leader(TESTCLSTR)
assert JBoxDynConfig.get_cluster_leader(TESTCLSTR) is None
assert JBoxDynConfig.get_allow_registration(TESTCLSTR)
JBoxDynConfig.set_allow_registration(TESTCLSTR, False)
assert not JBoxDynConfig.get_allow_registration(TESTCLSTR)
JBoxDynConfig.set_allow_registration(TESTCLSTR, True)
assert JBoxDynConfig.get_allow_registration(TESTCLSTR)
assert JBoxDynConfig.get_registration_hourly_rate(TESTCLSTR) == 60
JBoxDynConfig.set_registration_hourly_rate(TESTCLSTR, 20)
assert JBoxDynConfig.get_registration_hourly_rate(TESTCLSTR) == 20
JBoxDynConfig.set_registration_hourly_rate(TESTCLSTR, 60)
assert JBoxDynConfig.get_registration_hourly_rate(TESTCLSTR) == 60
assert JBoxDynConfig.get_message(TESTCLSTR) is None
JBoxDynConfig.set_message(TESTCLSTR, "hello world",
datetime.timedelta(minutes=1))
assert JBoxDynConfig.get_message(TESTCLSTR) == "hello world"
JBoxDynConfig.set_user_home_image(TESTCLSTR,
"juliabox-user-home-templates",
"user_home_28Nov2014.tar.gz")
assert JBoxDynConfig.get_user_home_image(TESTCLSTR) == (
"juliabox-user-home-templates", "user_home_28Nov2014.tar.gz")
num_pending_activations = JBoxUserV2.count_pending_activations()
TestDBTables.log_debug("pending activations: %d",
num_pending_activations)
resultset = JBoxInvite.table().scan()
result_arr = [obj for obj in resultset]
TestDBTables.log_debug("got array: %r", result_arr)
count_created = JBoxUserV2.count_created(48)
TestDBTables.log_debug("accounts created in last 1 hour: %d",
count_created)
def test():
yday = datetime.datetime.now() - datetime.timedelta(hours=24)
stats = JBoxAccountingV2.get_stats(dates=(yday,))
TestDBTables.log_debug("stats for yesterday: %s", repr(stats))
stats = JBoxAccountingV2.get_stats()
TestDBTables.log_debug("stats for today: %s", repr(stats))
sprops = JBoxSessionProps(unique_sessname('*****@*****.**'))
TestDBTables.log_debug("JBoxSessionProps. user_id: %s, snapshot_id: %s, message: %s",
sprops.get_user_id(),
sprops.get_snapshot_id(),
sprops.get_message())
JBoxDynConfig.set_cluster_leader(TESTCLSTR, 'testinstance')
assert JBoxDynConfig.get_cluster_leader(TESTCLSTR) == 'testinstance'
JBoxDynConfig.unset_cluster_leader(TESTCLSTR)
assert JBoxDynConfig.get_cluster_leader(TESTCLSTR) is None
assert JBoxDynConfig.get_allow_registration(TESTCLSTR)
JBoxDynConfig.set_allow_registration(TESTCLSTR, False)
assert not JBoxDynConfig.get_allow_registration(TESTCLSTR)
JBoxDynConfig.set_allow_registration(TESTCLSTR, True)
assert JBoxDynConfig.get_allow_registration(TESTCLSTR)
assert JBoxDynConfig.get_registration_hourly_rate(TESTCLSTR) == 60
JBoxDynConfig.set_registration_hourly_rate(TESTCLSTR, 20)
assert JBoxDynConfig.get_registration_hourly_rate(TESTCLSTR) == 20
JBoxDynConfig.set_registration_hourly_rate(TESTCLSTR, 60)
assert JBoxDynConfig.get_registration_hourly_rate(TESTCLSTR) == 60
assert JBoxDynConfig.get_message(TESTCLSTR) is None
JBoxDynConfig.set_message(TESTCLSTR, "hello world", datetime.timedelta(minutes=1))
assert JBoxDynConfig.get_message(TESTCLSTR) == "hello world"
JBoxDynConfig.set_user_home_image(TESTCLSTR, "juliabox-user-home-templates", "user_home_28Nov2014.tar.gz")
assert JBoxDynConfig.get_user_home_image(TESTCLSTR) == ("juliabox-user-home-templates",
"user_home_28Nov2014.tar.gz")
num_pending_activations = JBoxUserV2.count_pending_activations()
TestDBTables.log_debug("pending activations: %d", num_pending_activations)
resultset = JBoxInvite.table().scan()
result_arr = [obj for obj in resultset]
TestDBTables.log_debug("got array: %r", result_arr)
count_created = JBoxUserV2.count_created(48)
TestDBTables.log_debug("accounts created in last 1 hour: %d", count_created)
def get_disk_for_user(user_email):
JBoxEBSVol.log_debug("creating EBS volume for %s", user_email)
if not JBoxEBSVol.HAS_EBS:
raise Exception("EBS disks not enabled")
disk_id = JBoxEBSVol._reserve_disk_id()
if disk_id is None:
raise Exception("No free disk available")
sess_id = unique_sessname(user_email)
sess_props = JBoxSessionProps(sess_id, create=True, user_id=user_email)
if sess_props.is_new:
sess_props.save()
snap_id = sess_props.get_snapshot_id()
if snap_id is None:
snap_id = JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT
JBoxEBSVol.log_debug("will use snapshot id %s for %s", snap_id,
user_email)
_dev_path, mnt_path = CloudHost.create_new_volume(snap_id,
disk_id,
JBoxEBSVol.FS_LOC,
tag=user_email)
ebsvol = JBoxEBSVol(mnt_path, user_email=user_email)
if snap_id == JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT:
JBoxEBSVol.log_debug("creating home folder on blank volume for %s",
user_email)
ebsvol.restore_user_home(True)
ebsvol.restore()
else:
JBoxEBSVol.log_debug(
"updating home folder on existing volume for %s", user_email)
ebsvol.restore_user_home(False)
# snap_age_days = CloudHost.get_snapshot_age(snap_id).total_seconds()/(60*60*24)
# if snap_age_days > 7:
# ebsvol.restore_user_home()
JBoxEBSVol.log_debug(
"setting up instance configuration on disk for %s", user_email)
ebsvol.setup_instance_config()
return ebsvol
def release(self, backup=False):
if not JBoxEBSVol.HAS_EBS:
raise Exception("EBS disks not enabled")
disk_id = self.disk_path.split('/')[-1]
CloudHost.unmount_device(disk_id, JBoxEBSVol.FS_LOC)
if backup:
snap_id = self._backup()
else:
snap_id = None
vol_id = CloudHost.get_volume_id_from_device(disk_id)
CloudHost.detach_volume(vol_id, delete=False)
sess_props = JBoxSessionProps(self.sessname)
existing_disk = JBoxDiskState(cluster_id=CloudHost.INSTALL_ID, region_id=CloudHost.REGION,
user_id=sess_props.get_user_id())
if snap_id is not None:
existing_disk.add_snapshot_id(snap_id)
existing_disk.set_detach_time()
existing_disk.set_state(JBoxDiskState.STATE_DETACHED)
existing_disk.save()
def _backup(self, clear_volume=False):
sess_props = JBoxSessionProps(self.sessname)
desc = sess_props.get_user_id() + " JuliaBox Backup"
disk_id = self.disk_path.split('/')[-1]
snap_id = CloudHost.snapshot_volume(dev_id=disk_id, tag=self.sessname, description=desc)
old_snap_id = sess_props.get_snapshot_id()
sess_props.set_snapshot_id(snap_id)
sess_props.save()
if old_snap_id is not None:
CloudHost.delete_snapshot(old_snap_id)
def update_disk_states():
detached_disks = JBoxDiskState.get_detached_disks()
time_now = datetime.datetime.now(pytz.utc)
for disk_key in detached_disks:
disk_info = JBoxDiskState(disk_key=disk_key)
user_id = disk_info.get_user_id()
sess_props = JBoxSessionProps(unique_sessname(user_id))
incomplete_snapshots = []
modified = False
for snap_id in disk_info.get_snapshot_ids():
if not CloudHost.is_snapshot_complete(snap_id):
incomplete_snapshots.append(snap_id)
continue
JBoxd.log_debug("updating latest snapshot of user %s to %s",
user_id, snap_id)
old_snap_id = sess_props.get_snapshot_id()
sess_props.set_snapshot_id(snap_id)
modified = True
if old_snap_id is not None:
CloudHost.delete_snapshot(old_snap_id)
if modified:
sess_props.save()
disk_info.set_snapshot_ids(incomplete_snapshots)
disk_info.save()
if len(incomplete_snapshots) == 0:
if (time_now - disk_info.get_detach_time()
).total_seconds() > 24 * 60 * 60:
vol_id = disk_info.get_volume_id()
JBoxd.log_debug(
"volume %s for user %s unused for too long", vol_id,
user_id)
disk_info.delete()
CloudHost.detach_volume(vol_id, delete=True)
else:
JBoxd.log_debug("ongoing snapshots of user %s: %r", user_id,
incomplete_snapshots)
def publish_sessions():
iid = Compute.get_instance_id()
for c in SessContainer.session_containers(allcontainers=True):
if ('Names' in c) and (c['Names'] is not None):
JBoxSessionProps.attach_instance(Compute.get_install_id(), SessContainer(c['Id']).get_name(), iid,
c["Status"])
def get_disk_for_user(user_email):
JBoxEBSVol.log_debug("creating EBS volume for %s", user_email)
if not JBoxEBSVol.HAS_EBS:
raise Exception("EBS disks not enabled")
disk_id = JBoxEBSVol._reserve_disk_id()
if disk_id is None:
raise Exception("No free disk available")
try:
existing_disk = JBoxDiskState(cluster_id=CloudHost.INSTALL_ID,
region_id=CloudHost.REGION,
user_id=user_email)
except:
existing_disk = None
if existing_disk is None:
sess_id = unique_sessname(user_email)
sess_props = JBoxSessionProps(sess_id,
create=True,
user_id=user_email)
if sess_props.is_new:
sess_props.save()
snap_id = sess_props.get_snapshot_id()
if snap_id is None:
snap_id = JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT
JBoxEBSVol.log_debug("will use snapshot id %s for %s", snap_id,
user_email)
_dev_path, mnt_path, vol_id = CloudHost.create_new_volume(
snap_id,
disk_id,
JBoxEBSVol.FS_LOC,
tag=user_email,
disk_sz_gb=JBoxEBSVol.DISK_LIMIT)
existing_disk = JBoxDiskState(cluster_id=CloudHost.INSTALL_ID,
region_id=CloudHost.REGION,
user_id=user_email,
volume_id=vol_id,
attach_time=None,
create=True)
else:
_dev_path, mnt_path = CloudHost.attach_volume(
existing_disk.get_volume_id(), disk_id, JBoxEBSVol.FS_LOC)
existing_disk.set_attach_time()
snap_id = None
existing_disk.set_state(JBoxDiskState.STATE_ATTACHED)
existing_disk.save()
ebsvol = JBoxEBSVol(mnt_path, user_email=user_email)
if snap_id == JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT:
JBoxEBSVol.log_debug("creating home folder on blank volume for %s",
user_email)
ebsvol.restore_user_home(True)
ebsvol.restore()
else:
JBoxEBSVol.log_debug(
"updating home folder on existing volume for %s", user_email)
ebsvol.restore_user_home(False)
# snap_age_days = CloudHost.get_snapshot_age(snap_id).total_seconds()/(60*60*24)
# if snap_age_days > 7:
# ebsvol.restore_user_home()
JBoxEBSVol.log_debug(
"setting up instance configuration on disk for %s", user_email)
ebsvol.setup_instance_config()
return ebsvol
class JBoxEBSVol(JBoxVol):
DEVICES = []
MAX_DISKS = 0
FS_LOC = None
DISK_LIMIT = None
DISK_USE_STATUS = {}
DISK_RESERVE_TIME = {}
DISK_TEMPLATE_SNAPSHOT = None
HAS_EBS = False
LOCK = None
@staticmethod
def configure(disk_limit, fs_loc, max_disks, disk_template_snap_id):
JBoxEBSVol.HAS_EBS = True
JBoxEBSVol.FS_LOC = fs_loc
JBoxEBSVol.DISK_LIMIT = disk_limit
JBoxEBSVol.MAX_DISKS = max_disks
JBoxEBSVol.DEVICES = JBoxEBSVol._get_configured_devices(JBoxEBSVol.FS_LOC)
JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT = disk_template_snap_id
if len(JBoxEBSVol.DEVICES) < max_disks:
raise Exception("Not enough EBS mount points configured")
JBoxEBSVol.LOCK = threading.Lock()
JBoxEBSVol.refresh_disk_use_status()
@classmethod
def get_disk_allocated_size(cls):
return JBoxEBSVol.DISK_LIMIT * 1000000000
@staticmethod
def _id_from_device(dev_path):
return dev_path.split('/')[-1]
@staticmethod
def _get_configured_devices(fs_loc):
devices = []
with open('/etc/fstab', 'r') as fstab:
for line in fstab:
line = line.strip()
if (len(line) == 0) or line.startswith('#'):
continue
comps = line.split()
if (len(comps) == 6) and comps[1].startswith(fs_loc):
device = comps[0]
devices.append(JBoxEBSVol._id_from_device(device))
return devices
@staticmethod
def _get_disk_ids_used(cid):
used = []
props = JBoxEBSVol.dckr().inspect_container(cid)
try:
vols = props['Volumes']
for _cpath, hpath in vols.iteritems():
if hpath.startswith(JBoxEBSVol.FS_LOC):
used.append(hpath.split('/')[-1])
except:
JBoxEBSVol.log_error("error finding disk ids used in " + cid)
return []
return used
@staticmethod
def refresh_disk_use_status(container_id_list=None):
JBoxEBSVol.LOCK.acquire()
try:
nfree = 0
for idx in range(0, JBoxEBSVol.MAX_DISKS):
dev = JBoxEBSVol.DEVICES[idx]
if JBoxEBSVol._is_reserved(dev):
JBoxEBSVol.DISK_USE_STATUS[dev] = True
else:
JBoxEBSVol.DISK_USE_STATUS[dev] = False
nfree += 1
if container_id_list is None:
container_id_list = [cdesc['Id'] for cdesc in JBoxEBSVol.dckr().containers(all=True)]
for cid in container_id_list:
disk_ids = JBoxEBSVol._get_disk_ids_used(cid)
for disk_id in disk_ids:
JBoxEBSVol._mark_disk_used(disk_id)
nfree -= 1
JBoxEBSVol.log_info("Disk free: " + str(nfree) + "/" + str(JBoxEBSVol.MAX_DISKS))
finally:
JBoxEBSVol.LOCK.release()
@staticmethod
def _get_unused_disk_id():
for idx in range(0, JBoxEBSVol.MAX_DISKS):
dev = JBoxEBSVol.DEVICES[idx]
if not JBoxEBSVol.DISK_USE_STATUS[dev]:
return dev
return None
@staticmethod
def _is_reserved(idx):
if (idx in JBoxEBSVol.DISK_RESERVE_TIME) and (JBoxEBSVol.DISK_RESERVE_TIME[idx] < time.time()):
del JBoxEBSVol.DISK_RESERVE_TIME[idx]
return idx in JBoxEBSVol.DISK_RESERVE_TIME
@staticmethod
def _mark_disk_used(idx, used=True, for_secs=0):
JBoxEBSVol.DISK_USE_STATUS[idx] = used
if used and (for_secs > 0):
JBoxEBSVol.DISK_RESERVE_TIME[idx] = time.time() + for_secs
else:
if idx in JBoxEBSVol.DISK_RESERVE_TIME:
del JBoxEBSVol.DISK_RESERVE_TIME[idx]
@staticmethod
def _reserve_disk_id():
JBoxEBSVol.LOCK.acquire()
try:
disk_id = JBoxEBSVol._get_unused_disk_id()
JBoxEBSVol._mark_disk_used(disk_id, for_secs=120)
return disk_id
finally:
JBoxEBSVol.LOCK.release()
@staticmethod
def disk_ids_used_pct():
if not JBoxEBSVol.HAS_EBS:
return 0
pct = (sum(JBoxEBSVol.DISK_USE_STATUS.values()) * 100) / len(JBoxEBSVol.DISK_USE_STATUS)
return min(100, max(0, pct))
@staticmethod
def get_disk_for_user(user_email):
JBoxEBSVol.log_debug("creating EBS volume for %s", user_email)
if not JBoxEBSVol.HAS_EBS:
raise Exception("EBS disks not enabled")
disk_id = JBoxEBSVol._reserve_disk_id()
if disk_id is None:
raise Exception("No free disk available")
try:
existing_disk = JBoxDiskState(cluster_id=CloudHost.INSTALL_ID, region_id=CloudHost.REGION,
user_id=user_email)
except Exception, ex:
JBoxEBSVol.log_debug("No existing disk for %s. Exception %r", user_email, ex)
existing_disk = None
if existing_disk is None:
sess_id = unique_sessname(user_email)
sess_props = JBoxSessionProps(sess_id, create=True, user_id=user_email)
if sess_props.is_new:
sess_props.save()
snap_id = sess_props.get_snapshot_id()
if snap_id is None:
snap_id = JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT
JBoxEBSVol.log_debug("will use snapshot id %s for %s", snap_id, user_email)
_dev_path, mnt_path, vol_id = CloudHost.create_new_volume(snap_id, disk_id,
JBoxEBSVol.FS_LOC,
tag=user_email,
disk_sz_gb=JBoxEBSVol.DISK_LIMIT)
existing_disk = JBoxDiskState(cluster_id=CloudHost.INSTALL_ID, region_id=CloudHost.REGION,
user_id=user_email,
volume_id=vol_id,
attach_time=None,
create=True)
else:
_dev_path, mnt_path = CloudHost.attach_volume(existing_disk.get_volume_id(), disk_id, JBoxEBSVol.FS_LOC)
existing_disk.set_attach_time()
snap_id = None
existing_disk.set_state(JBoxDiskState.STATE_ATTACHED)
existing_disk.save()
ebsvol = JBoxEBSVol(mnt_path, user_email=user_email)
if snap_id == JBoxEBSVol.DISK_TEMPLATE_SNAPSHOT:
JBoxEBSVol.log_debug("creating home folder on blank volume for %s", user_email)
ebsvol.restore_user_home(True)
ebsvol.restore()
else:
JBoxEBSVol.log_debug("updating home folder on existing volume for %s", user_email)
ebsvol.restore_user_home(False)
# snap_age_days = CloudHost.get_snapshot_age(snap_id).total_seconds()/(60*60*24)
# if snap_age_days > 7:
# ebsvol.restore_user_home()
JBoxEBSVol.log_debug("setting up instance configuration on disk for %s", user_email)
ebsvol.setup_instance_config()
return ebsvol