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disaster-recovery-tool.py
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import npyscreen
import json
import time
from ovirtsdk.api import API
from ovirtsdk.xml import params
class startForm(npyscreen.Form):
# This is the welcome page, presenting an ASCII picture. No interesting logic here.
def create(self):
self.add(npyscreen.MultiLineEdit, value="888b. db 88888 db 88888 8 8 888 \n8 .8 dPYb 8 dPYb 8 8 8 8 \n8wwK' dPwwYb 8 dPwwYb wwww 8 8b..d8 8 \n8 Yb dP Yb 8 dP Yb 8 `Y88P' 888 \n \n88888 w 8 8 888 w d8b d8b Yb dP w w 888b. 888b. \n 8 .d88b Yb dP w8ww 8 8 d88b .d88b 8d8b 8 8d8b. w8ww .d88b 8d8b 8' .d88 .d8b .d88b 8' .d8b. 8d8b .d8b. Yb dP w 8d8b w8ww 8 8 8 .8 \n 8 8.dP' `8. 8 8b..d8 `Yb. 8.dP' 8P 8 8P Y8 8 8.dP' 8P w8ww 8 8 8 8.dP' w8ww 8' .8 8P 8' .8 YbdP 8 8P 8 8 8 8wwK' \n 8 `Y88P dP Yb Y8P `Y88P' Y88P `Y88P 8 888 8 8 Y8P `Y88P 8 8 `Y88 `Y8P `Y88P 8 `Y8P' 8 `Y8P' YP 8 8 Y8P 888P' 8 Yb ", rely=3, relx=10, editable=False)
self.add(npyscreen.MultiLineEdit, editable=False, value = " \n /((, \n ((((( \n .((##(* .. \n .((##(/( ,((##(#/*((// \n ,(####((#/,#.#(*.#**, \n ,%##(##(/(%%%%% %*, \n .(%&&&%((#(#####(//* \n /*, *%%&&&&%#####(////// \n *%%##(&*/(((* .%%%&&&&#%%%&&%(#%/ \n %#.(**(#####%(///. *#%%%&&&&&%@/%%&%###( \n .****/##&%//(((###%%&%//* ,#%%&&&&&&&&&&%%%%%#%* \n /****/(%%%#########%%& , (%%&&&(##&&&&&%%%%%###* \n /****/%%%&&%%%%%%%%. /***, .##%%&&%*/%&%&&%%%%%%###(. \n ,/&&&&%&##/ *,(*. .###%%%,,,#%&&&%%%%#%####. \n .&&&&%%%&&&%/* //* ,#%##%%%%%%%######%%########( \n #%&&&%%##(#(((#((((##. ,%%%%%%%%&&%((#########%%%&%#(/ \n /%%%%%%#######(((##%%, ,##%##%%%%##((########(***/####/ \n ,%%&%%%#####((((#(/. (%#(((########(##((####%*(#((///, \n /&&&%%%%%#%###((. /#%###########((###((((((((/((//((* \n *%%&%%%%#%####((* ,%%#%%%%%#%##%####(/(((((/(**/(/(((## \n #&&&&&&&%%/*###(// #%%%%%%&%%%%%%%%%#####((/(((((/((####(. \n ,&&&&&&&&%%(**#(((* *%%%&%&&&%%%&%%%#%#%###(#(((/((#(/#####/ \n /&&&&&%%%#((((((/(/ *%%&&%&&%&&&&%&%%%#%%###(#######(((####(, \n ,&&&%%%%%(((((((///. #%&&&%%%&%&&&&&&&&&&%%%%%#%##%%%%/&/*###/ \n .%&%%%###(((((/(///* *%%&&%%%&&%%(*&(*&&&&&&&&&%&%%&&&(/#(#/#( \n (&%%%#((/(((((((((* ,(#%#(/**#%&%&&%&&&&%(*#/&&&&&&&&&&&&&&&@/((##, \n .*(((#&&%##((/((##(####* ,/ ./%%&%&&&&/,,/&&&&&&&&&&&&&&@&%(*##%( \n.,*/*. ./%&%###%######%#**,...... ,*/. ,#&&&&&&&&&%,,&&&&&&&&&&&@@@@&(*%%(..... \n,*, *#(*(*/,.......... .*#&%&&&&&%,***,,,,,,,,,,,,#/,,,,,,,,... ", rely=17, relx=42)
def adjust_widgets(self):
self.parentApp.setNextForm('start_page')
class connectForm(npyscreen.ActionForm):
def on_ok(self):
try:
self.connect()
self.parentApp.setNextForm('import_storage')
except Exception as e:
if hasattr(e, 'reason'):
self.error.value = 'Connection Error: ' + e.reason
else:
self.error.value = 'Error: %s' % e
def on_cancel(self):
self.parentApp.setNextForm(None)
def create(self):
self.restapi = self.add(npyscreen.FixedText, value='REST-API Configuration:', editable=False)
self.url = self.add(npyscreen.TitleText, name='Address', value='http://127.0.0.1:8080/ovirt-engine/api')
self.username = self.add(npyscreen.TitleText, name='Username', value='admin@internal')
self.password = self.add(npyscreen.TitlePassword, name='Password', value='')
self.error = self.add(npyscreen.FixedText, value='', color='CRITICAL', editable=False)
def connect(self):
self.parentApp.api = API(url=self.url.value, username=self.username.value, password=self.password.value)
class importStorageForm(npyscreen.ActionForm):
def create(self):
self.FileStorageTypes = ['NFS', 'POSIXFS', 'GLUSTERFS', 'LOCALFS']
self.BlockStorageType = ['ISCSI', 'FCP']
self.importTitle = self.add(npyscreen.FixedText, value='Import Storage Domain:', editable=False)
self.storageName = self.add(npyscreen.TitleText, name='Domain Name')
self.datacenters = self.add(self.DCsTitleSelectOne, scroll_exit=True, name='Data Center', max_height=3)
self.hosts = self.add(self.HostsTitleSelectOne, scroll_exit=True, name='Hosts', max_height=3, rely=8)
self.storageTypes = self.add(self.StorageTypeSelectOne, scroll_exit=True, name='Storage Type', max_height=4, rely=12,
values=self.FileStorageTypes+self.BlockStorageType, hidden=True)
self.url = self.add(npyscreen.TitleText, name='Export Path', hidden=True, value='FQDN:/path', rely=17)
self.warn = self.add(npyscreen.FixedText, value='Please wait. The operation might take several minutes.', hidden=True,
rely=20, editable=False, color='CAUTIONHL')
def beforeEditing(self):
self.datacenters.values = self.getDCs()
def getDCs(self):
return list(map((lambda dc: dc.name), self.parentApp.api.datacenters.list('status=up')))
class DCsTitleSelectOne(npyscreen.TitleSelectOne):
def when_value_edited(self):
selectedObjects = self.parent.datacenters.get_selected_objects();
if len(selectedObjects) != 0:
dcName = selectedObjects[0]
self.parent.hosts.values = list(map((lambda host: host.name),
self.parent.parentApp.api.hosts.list('datacenter=%s status=up' % dcName)))
self.parent.hosts.update()
class HostsTitleSelectOne(npyscreen.TitleSelectOne):
def when_value_edited(self):
selectedObjects = self.parent.hosts.get_selected_objects();
if len(selectedObjects) != 0:
self.parent.storageTypes.hidden = False
self.parent.storageTypes.update()
class StorageTypeSelectOne(npyscreen.TitleSelectOne):
def when_value_edited(self):
selectedObjects = self.parent.storageTypes.get_selected_objects();
if len(selectedObjects) != 0:
storageType = selectedObjects[0]
if (storageType in self.parent.FileStorageTypes):
self.parent.url.hidden = False
self.parent.url.update()
else:
self.parent.url.hidden = True
self.parent.url.update()
def on_cancel(self):
self.parentApp.setNextForm('import_entities')
def on_ok(self):
self.warn.hidden=False
self.display()
api = self.parentApp.api
param = params.StorageDomain(name=self.storageName.value,
type_='data',
host=api.hosts.get(name=self.hosts.get_selected_objects()[0]),
storage = params.StorageConnection(type_=self.storageTypes.get_selected_objects()[0],
address=self.url.value.split(':')[0],
path=self.url.value.split(':')[1]))
try:
sd = api.storagedomains.add(param)
api.datacenters.get(self.datacenters.get_selected_objects()[0]).storagedomains.add(sd)
self.warn.hidden=True
self.display()
self.onImportPopup('Success', 'The storage domain has been imported successfully!', None)
except Exception as e:
if hasattr(e, 'detail'):
error = 'Error: ' + e.detail
else:
error = 'Error: %s' % e
self.onImportPopup('Error', None, error)
def onImportPopup(self, title, success, error):
def on_ok():
pass
def on_cancel():
self.parentApp.setNextForm('import_entities')
form = npyscreen.ActionPopup(name=title, lines=9, columns=80)
form.show_aty = 7
form.OK_BUTTON_TEXT = 'Yes'
form.CANCEL_BUTTON_TEXT = 'No'
form.on_ok = on_ok
form.on_cancel = on_cancel
if (success != None):
form.success = form.add(npyscreen.FixedText, value=success, color='VERYGOOD', editable=False, rely=2)
else:
form.error = form.add(npyscreen.FixedText, value=error, color='CRITICAL', editable=False, rely=2)
label = form.add_widget(npyscreen.FixedText, value='Do you want to import additional storage domains?',
color='CONTROL', editable=0, rely=5)
action = form.edit()
return action
class importEntitiesForm(npyscreen.ActionForm):
def create(self):
self.importTitle = self.add(npyscreen.FixedText, value='Import Entites:', editable=False)
self.datacenters = self.add(self.DCsTitleSelectOne, scroll_exit=True, name='Data Center', max_height=3)
self.clusters = self.add(self.ClustersTitleSelectOne, scroll_exit=True, name='Clusters', max_height=3, rely=7)
self.label = self.add(npyscreen.FixedText, value='Select entities to import:', editable=False, rely=11)
self.entities = self.add(self.EntitiesMultiSelect, values=['Templates', 'VMs', 'Disks'],
max_height=4, scroll_exit=True, hidden=True)
self.templatesSlider = self.add(npyscreen.TitleSlider, name = "Templates", out_of=100, editable=False, label=True, hidden=True, rely=18)
self.template_import = self.add(npyscreen.FixedText, value='', editable=False, rely=19, hidden=True)
self.vmsSlider = self.add(npyscreen.TitleSlider, name = "VMs", out_of=100, editable=False, hidden=True, rely=21)
self.vm_import = self.add(npyscreen.FixedText, value='', editable=False, rely=22, hidden=True)
self.disksSlider = self.add(npyscreen.TitleSlider, name = "Disks", out_of=100, editable=False, hidden=True, rely=24)
self.disk_import = self.add(npyscreen.FixedText, value='', editable=False, rely=25, hidden=True)
def reset(self):
self.templatesSlider.hidden = True
self.vmsSlider.hidden = True
self.disksSlider.hidden = True
self.template_import.hidden = True
self.vm_import.hidden = True
self.disk_import.hidden = True
self.disk_import.value = ""
self.vm_import.value = ""
self.template_import.value = ""
self.beforeEditing()
self.clusters.hidden = True
def onRegisterPopup(self):
def on_ok():
self.reset()
self.display()
def on_cancel():
self.parentApp.setNextForm(None)
form = npyscreen.ActionPopup(name="All the entities for the Data Center has been registered", lines=9, columns=80)
form.show_aty = 7
form.show_atx = 45
form.OK_BUTTON_TEXT = 'Yes'
form.CANCEL_BUTTON_TEXT = 'No'
form.on_ok = on_ok
form.on_cancel = on_cancel
label = form.add_widget(npyscreen.FixedText, value='Do you want to register entities from another Data Center?',
color='CONTROL', editable=0, rely=3)
action = form.edit()
return action
def beforeEditing(self):
self.datacenters.values = self.getDCs()
def getDCs(self):
return list(map((lambda dc: dc.name), self.parentApp.api.datacenters.list('status=up')))
def on_cancel(self):
self.parentApp.setNextForm(None)
def _aggragte_entities(self, slider, slider_text, entity, storage_domain, unreg_entities):
if (slider.hidden == False):
slider_text.value="Fetching unregistered %s from Storage Domain %s..." % (entity, storage_domain.name)
slider_text.update()
for entity_per_domain in getattr(storage_domain, entity).list(unregistered=True):
unreg_entities.add(entity_per_domain)
slider_text.value="Finished fetching unregistered %s from storage domain %s." % (entity, storage_domain.name)
slider_text.update()
def _reset_slider_texts(self):
self.disk_import.value=""
self.vm_import.value=""
self.template_import.value=""
self.display()
def _update_slider_text(self, slider, slider_text, entity_type, entity, size, ind, prefix):
slider_text.value="%sRegister %s name: %s" % (prefix, entity_type, entity.name)
slider_text.color='VERYGOOD'
slider.value=ind*(100/size)
self.display()
def _handle_exception(self, slider_text, entity, e):
slider_text.value="%s failed to register. Exception is: %s" % (entity.name, e.detail)
slider_text.color='CRITICAL'
self.display()
time.sleep(5)
def _finish_registration(self, slider, slider_text, entity_type):
slider_text.value="Finished %ss registration" % entity_type
slider_text.color='VERYGOOD'
slider.value=100
self.display()
def _register_entities(self, _cluster, entities, slider, slider_text, entity_type):
if not entities:
slider_text.value="No %ss to register" % entity_type
slider_text.color='VERYGOOD'
slider_text.update()
else:
ind=1
for entity in entities:
self._update_slider_text(slider, slider_text, entity_type, entity, len(entities), ind, "")
ind+=1
try:
entity.register(params.Action(cluster=_cluster))
except Exception as e:
self._handle_exception(slider_text, entity, e)
self._finish_registration(slider, slider_text, entity_type)
def _register_disks(self, active_sds):
if (self.disksSlider.hidden == False):
for storageDomain in active_sds:
unreg_disks=storageDomain.disks.list(unregistered=True)
self.disksSlider.value=0
self.disk_import.value="Storage register disks from storage %s" % storageDomain.name
self.disksSlider.update()
self.disk_import.update()
ind=1
for disk_per_domain in unreg_disks:
self._update_slider_text(self.disksSlider, self.disk_import, "disk", disk_per_domain, len(unreg_disks), ind, "Storage: " + storageDomain.name)
ind+=1
try:
storageDomain.disks.add(disk=params.Disk(id=disk_per_domain.id), unregistered=True)
except Exception as e:
self._handle_exception(self.disk_import, disk_per_domain, e)
self._finish_registration(self.disksSlider, self.disk_import, "disk")
def on_ok(self):
api = self.parentApp.api
_cluster_ = api.clusters.get(self.clusters.get_selected_objects()[0])
active_sds = api.storagedomains.list('datacenter=%s status=active' % self.datacenters.get_selected_objects()[0])
unreg_templates = set()
unreg_vms = set()
for storage_domain in active_sds:
self._aggragte_entities(self.templatesSlider, self.template_import, 'templates', storage_domain, unreg_templates)
self._aggragte_entities(self.vmsSlider, self.vm_import, 'vms', storage_domain, unreg_vms)
self._reset_slider_texts()
_cluster = api.clusters.get(self.clusters.get_selected_objects()[0])
self._register_entities(_cluster, unreg_templates, self.templatesSlider, self.template_import, 'template')
self._register_entities(_cluster, unreg_vms, self.vmsSlider, self.vm_import, 'vm')
self._register_disks(active_sds)
self.onRegisterPopup()
class DCsTitleSelectOne(npyscreen.TitleSelectOne):
def when_value_edited(self):
selectedObjects = self.parent.datacenters.get_selected_objects();
if len(selectedObjects) != 0:
dcName = selectedObjects[0]
self.parent.clusters.values = list(map((lambda cluster: cluster.name),
self.parent.parentApp.api.clusters.list('datacenter=%s' % dcName)))
self.parent.clusters.update()
class ClustersTitleSelectOne(npyscreen.TitleSelectOne):
def when_value_edited(self):
selectedObjects = self.parent.clusters.get_selected_objects();
if len(selectedObjects) != 0:
self.parent.entities.hidden = False
self.parent.entities.update()
class EntitiesMultiSelect(npyscreen.MultiSelect):
def when_value_edited(self):
self.parent.templatesSlider.hidden = True
self.parent.vmsSlider.hidden = True
self.parent.disksSlider.hidden = True
self.parent.template_import.hidden = True
self.parent.vm_import.hidden = True
self.parent.disk_import.hidden = True
selectedObjects = self.parent.entities.get_selected_objects();
if selectedObjects:
if ('Templates' in selectedObjects):
self.parent.templatesSlider.hidden = False
self.parent.template_import.hidden = False
if ('VMs' in selectedObjects):
self.parent.vmsSlider.hidden = False
self.parent.vm_import.hidden = False
if ('Disks' in selectedObjects):
self.parent.disksSlider.hidden = False
self.parent.disk_import.hidden = False
self.parent.display()
class MyApplication(npyscreen.NPSAppManaged):
TITLE = 'oVirt Disaster Recovery Tool'
api = None
def onStart(self):
self.addForm('MAIN', startForm)
self.addForm('start_page', connectForm, name=self.TITLE)
self.addForm('import_storage', importStorageForm, name=self.TITLE)
self.addForm('import_entities', importEntitiesForm, name=self.TITLE)
if __name__ == '__main__':
TestApp = MyApplication().run()