ucloud-{api,scheduler,host,filescanner,imagescanner,metadata} combined
This commit is contained in:
commit
da77ac65eb
29 changed files with 3941 additions and 0 deletions
415
api/schemas.py
Executable file
415
api/schemas.py
Executable file
|
|
@ -0,0 +1,415 @@
|
|||
"""
|
||||
This module contain classes thats validates and intercept/modify
|
||||
data coming from ucloud-cli (user)
|
||||
|
||||
It was primarily developed as an alternative to argument parser
|
||||
of Flask_Restful which is going to be deprecated. I also tried
|
||||
marshmallow for that purpose but it was an overkill (because it
|
||||
do validation + serialization + deserialization) and little
|
||||
inflexible for our purpose.
|
||||
"""
|
||||
|
||||
# TODO: Fix error message when user's mentioned VM (referred by name)
|
||||
# does not exists.
|
||||
#
|
||||
# Currently, it says uuid is a required field.
|
||||
|
||||
import json
|
||||
import os
|
||||
import bitmath
|
||||
|
||||
from ucloud_common.host import HostPool, HostStatus
|
||||
from ucloud_common.vm import VmPool, VMStatus
|
||||
|
||||
from common_fields import Field, VmUUIDField
|
||||
from helper import check_otp, resolve_vm_name
|
||||
from config import etcd_client as client
|
||||
from config import (HOST_PREFIX, VM_PREFIX, IMAGE_PREFIX,
|
||||
FILE_PREFIX, IMAGE_STORE_PREFIX)
|
||||
|
||||
HOST_POOL = HostPool(client, HOST_PREFIX)
|
||||
VM_POOL = VmPool(client, VM_PREFIX)
|
||||
|
||||
|
||||
class BaseSchema:
|
||||
def __init__(self, data, fields=None):
|
||||
_ = data # suppress linter warning
|
||||
self.__errors = []
|
||||
if fields is None:
|
||||
self.fields = []
|
||||
else:
|
||||
self.fields = fields
|
||||
|
||||
def validation(self):
|
||||
# custom validation is optional
|
||||
return True
|
||||
|
||||
def is_valid(self):
|
||||
for field in self.fields:
|
||||
field.is_valid()
|
||||
self.add_field_errors(field)
|
||||
|
||||
for parent in self.__class__.__bases__:
|
||||
try:
|
||||
parent.validation(self)
|
||||
except AttributeError:
|
||||
pass
|
||||
if not self.__errors:
|
||||
self.validation()
|
||||
|
||||
if self.__errors:
|
||||
return False
|
||||
return True
|
||||
|
||||
def get_errors(self):
|
||||
return {"message": self.__errors}
|
||||
|
||||
def add_field_errors(self, field: Field):
|
||||
self.__errors += field.get_errors()
|
||||
|
||||
def add_error(self, error):
|
||||
self.__errors.append(error)
|
||||
|
||||
|
||||
class OTPSchema(BaseSchema):
|
||||
def __init__(self, data: dict, fields=None):
|
||||
self.name = Field("name", str, data.get("name", KeyError))
|
||||
self.realm = Field("realm", str, data.get("realm", KeyError))
|
||||
self.token = Field("token", str, data.get("token", KeyError))
|
||||
|
||||
_fields = [self.name, self.realm, self.token]
|
||||
if fields:
|
||||
_fields += fields
|
||||
super().__init__(data=data, fields=_fields)
|
||||
|
||||
def validation(self):
|
||||
print(self.name.value, self.realm.value, self.token.value)
|
||||
if check_otp(self.name.value, self.realm.value, self.token.value) != 200:
|
||||
self.add_error("Wrong Credentials")
|
||||
|
||||
|
||||
########################## Image Operations ###############################################
|
||||
|
||||
|
||||
class CreateImageSchema(BaseSchema):
|
||||
def __init__(self, data):
|
||||
# Fields
|
||||
self.uuid = Field("uuid", str, data.get("uuid", KeyError))
|
||||
self.name = Field("name", str, data.get("name", KeyError))
|
||||
self.image_store = Field("image_store", str, data.get("image_store", KeyError))
|
||||
|
||||
# Validations
|
||||
self.uuid.validation = self.file_uuid_validation
|
||||
self.image_store.validation = self.image_store_name_validation
|
||||
|
||||
# All Fields
|
||||
fields = [self.uuid, self.name, self.image_store]
|
||||
super().__init__(data, fields)
|
||||
|
||||
def file_uuid_validation(self):
|
||||
file_entry = client.get(os.path.join(FILE_PREFIX, self.uuid.value))
|
||||
if file_entry is None:
|
||||
self.add_error(
|
||||
"Image File with uuid '{}' Not Found".format(self.uuid.value)
|
||||
)
|
||||
|
||||
def image_store_name_validation(self):
|
||||
image_stores = list(client.get_prefix(IMAGE_STORE_PREFIX))
|
||||
|
||||
image_store = next(
|
||||
filter(
|
||||
lambda s: json.loads(s.value)["name"] == self.image_store.value,
|
||||
image_stores,
|
||||
),
|
||||
None,
|
||||
)
|
||||
if not image_store:
|
||||
self.add_error("Store '{}' does not exists".format(self.image_store.value))
|
||||
|
||||
|
||||
# Host Operations
|
||||
|
||||
class CreateHostSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
self.parsed_specs = {}
|
||||
# Fields
|
||||
self.specs = Field("specs", dict, data.get("specs", KeyError))
|
||||
self.hostname = Field("hostname", str, data.get("hostname", KeyError))
|
||||
|
||||
# Validation
|
||||
self.specs.validation = self.specs_validation
|
||||
|
||||
fields = [self.hostname, self.specs]
|
||||
|
||||
super().__init__(data=data, fields=fields)
|
||||
|
||||
def specs_validation(self):
|
||||
ALLOWED_BASE = 10
|
||||
|
||||
_cpu = self.specs.value.get('cpu', KeyError)
|
||||
_ram = self.specs.value.get('ram', KeyError)
|
||||
_os_ssd = self.specs.value.get('os-ssd', KeyError)
|
||||
_hdd = self.specs.value.get('hdd', KeyError)
|
||||
|
||||
if KeyError in [_cpu, _ram, _os_ssd, _hdd]:
|
||||
self.add_error("You must specify CPU, RAM and OS-SSD in your specs")
|
||||
return None
|
||||
try:
|
||||
parsed_ram = bitmath.parse_string_unsafe(_ram)
|
||||
parsed_os_ssd = bitmath.parse_string_unsafe(_os_ssd)
|
||||
|
||||
if parsed_ram.base != ALLOWED_BASE:
|
||||
self.add_error("Your specified RAM is not in correct units")
|
||||
if parsed_os_ssd.base != ALLOWED_BASE:
|
||||
self.add_error("Your specified OS-SSD is not in correct units")
|
||||
|
||||
if _cpu < 1:
|
||||
self.add_error("CPU must be atleast 1")
|
||||
|
||||
if parsed_ram < bitmath.GB(1):
|
||||
self.add_error("RAM must be atleast 1 GB")
|
||||
|
||||
if parsed_os_ssd < bitmath.GB(10):
|
||||
self.add_error("OS-SSD must be atleast 10 GB")
|
||||
|
||||
parsed_hdd = []
|
||||
for hdd in _hdd:
|
||||
_parsed_hdd = bitmath.parse_string_unsafe(hdd)
|
||||
if _parsed_hdd.base != ALLOWED_BASE:
|
||||
self.add_error("Your specified HDD is not in correct units")
|
||||
break
|
||||
else:
|
||||
parsed_hdd.append(str(_parsed_hdd))
|
||||
|
||||
except ValueError:
|
||||
# TODO: Find some good error message
|
||||
self.add_error("Specs are not correct.")
|
||||
else:
|
||||
if self.get_errors():
|
||||
self.specs = {
|
||||
'cpu': _cpu,
|
||||
'ram': str(parsed_ram),
|
||||
'os-ssd': str(parsed_os_ssd),
|
||||
'hdd': parsed_hdd
|
||||
}
|
||||
|
||||
def validation(self):
|
||||
if self.realm.value != "ungleich-admin":
|
||||
self.add_error("Invalid Credentials/Insufficient Permission")
|
||||
|
||||
|
||||
# VM Operations
|
||||
|
||||
|
||||
class CreateVMSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
self.parsed_specs = {}
|
||||
# Fields
|
||||
self.specs = Field("specs", dict, data.get("specs", KeyError))
|
||||
self.vm_name = Field("vm_name", str, data.get("vm_name", KeyError))
|
||||
self.image_uuid = Field("image_uuid", str, data.get("image_uuid", KeyError))
|
||||
|
||||
# Validation
|
||||
self.image_uuid.validation = self.image_uuid_validation
|
||||
self.vm_name.validation = self.vm_name_validation
|
||||
self.specs.validation = self.specs_validation
|
||||
|
||||
fields = [self.vm_name, self.image_uuid, self.specs]
|
||||
|
||||
super().__init__(data=data, fields=fields)
|
||||
|
||||
def image_uuid_validation(self):
|
||||
images = client.get_prefix(IMAGE_PREFIX)
|
||||
|
||||
if self.image_uuid.value not in [i.key.split("/")[-1] for i in images]:
|
||||
self.add_error("Image UUID not valid")
|
||||
|
||||
def vm_name_validation(self):
|
||||
if resolve_vm_name(name=self.vm_name.value, owner=self.name.value):
|
||||
self.add_error(
|
||||
'VM with same name "{}" already exists'.format(self.vm_name.value)
|
||||
)
|
||||
|
||||
def specs_validation(self):
|
||||
ALLOWED_BASE = 10
|
||||
|
||||
_cpu = self.specs.value.get('cpu', KeyError)
|
||||
_ram = self.specs.value.get('ram', KeyError)
|
||||
_os_ssd = self.specs.value.get('os-ssd', KeyError)
|
||||
_hdd = self.specs.value.get('hdd', KeyError)
|
||||
|
||||
if KeyError in [_cpu, _ram, _os_ssd, _hdd]:
|
||||
self.add_error("You must specify CPU, RAM and OS-SSD in your specs")
|
||||
return None
|
||||
try:
|
||||
parsed_ram = bitmath.parse_string_unsafe(_ram)
|
||||
parsed_os_ssd = bitmath.parse_string_unsafe(_os_ssd)
|
||||
|
||||
if parsed_ram.base != ALLOWED_BASE:
|
||||
self.add_error("Your specified RAM is not in correct units")
|
||||
if parsed_os_ssd.base != ALLOWED_BASE:
|
||||
self.add_error("Your specified OS-SSD is not in correct units")
|
||||
|
||||
if _cpu < 1:
|
||||
self.add_error("CPU must be atleast 1")
|
||||
|
||||
if parsed_ram < bitmath.GB(1):
|
||||
self.add_error("RAM must be atleast 1 GB")
|
||||
|
||||
if parsed_os_ssd < bitmath.GB(1):
|
||||
self.add_error("OS-SSD must be atleast 1 GB")
|
||||
|
||||
parsed_hdd = []
|
||||
for hdd in _hdd:
|
||||
_parsed_hdd = bitmath.parse_string_unsafe(hdd)
|
||||
if _parsed_hdd.base != ALLOWED_BASE:
|
||||
self.add_error("Your specified HDD is not in correct units")
|
||||
break
|
||||
else:
|
||||
parsed_hdd.append(str(_parsed_hdd))
|
||||
|
||||
except ValueError:
|
||||
# TODO: Find some good error message
|
||||
self.add_error("Specs are not correct.")
|
||||
else:
|
||||
if self.get_errors():
|
||||
self.specs = {
|
||||
'cpu': _cpu,
|
||||
'ram': str(parsed_ram),
|
||||
'os-ssd': str(parsed_os_ssd),
|
||||
'hdd': parsed_hdd
|
||||
}
|
||||
|
||||
|
||||
class VMStatusSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
data["uuid"] = (
|
||||
resolve_vm_name(
|
||||
name=data.get("vm_name", None),
|
||||
owner=(data.get("in_support_of", None) or data.get("name", None)),
|
||||
)
|
||||
or KeyError
|
||||
)
|
||||
self.uuid = VmUUIDField(data)
|
||||
|
||||
fields = [self.uuid]
|
||||
|
||||
super().__init__(data, fields)
|
||||
|
||||
def validation(self):
|
||||
vm = VM_POOL.get(self.uuid.value)
|
||||
if not (
|
||||
vm.value["owner"] == self.name.value or self.realm.value == "ungleich-admin"
|
||||
):
|
||||
self.add_error("Invalid User")
|
||||
|
||||
|
||||
class VmActionSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
data["uuid"] = (
|
||||
resolve_vm_name(
|
||||
name=data.get("vm_name", None),
|
||||
owner=(data.get("in_support_of", None) or data.get("name", None)),
|
||||
)
|
||||
or KeyError
|
||||
)
|
||||
self.uuid = VmUUIDField(data)
|
||||
self.action = Field("action", str, data.get("action", KeyError))
|
||||
|
||||
self.action.validation = self.action_validation
|
||||
|
||||
_fields = [self.uuid, self.action]
|
||||
|
||||
super().__init__(data=data, fields=_fields)
|
||||
|
||||
def action_validation(self):
|
||||
allowed_actions = ["start", "stop", "delete"]
|
||||
if self.action.value not in allowed_actions:
|
||||
self.add_error(
|
||||
"Invalid Action. Allowed Actions are {}".format(allowed_actions)
|
||||
)
|
||||
|
||||
def validation(self):
|
||||
vm = VM_POOL.get(self.uuid.value)
|
||||
if not (
|
||||
vm.value["owner"] == self.name.value or self.realm.value == "ungleich-admin"
|
||||
):
|
||||
self.add_error("Invalid User")
|
||||
|
||||
if (
|
||||
self.action.value == "start"
|
||||
and vm.status == VMStatus.running
|
||||
and vm.hostname != ""
|
||||
):
|
||||
self.add_error("VM Already Running")
|
||||
|
||||
if self.action.value == "stop":
|
||||
if vm.status == VMStatus.stopped:
|
||||
self.add_error("VM Already Stopped")
|
||||
elif vm.status != VMStatus.running:
|
||||
self.add_error("Cannot stop non-running VM")
|
||||
|
||||
|
||||
class VmMigrationSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
data["uuid"] = (
|
||||
resolve_vm_name(
|
||||
name=data.get("vm_name", None),
|
||||
owner=(data.get("in_support_of", None) or data.get("name", None)),
|
||||
)
|
||||
or KeyError
|
||||
)
|
||||
|
||||
self.uuid = VmUUIDField(data)
|
||||
self.destination = Field("destination", str, data.get("destination", KeyError))
|
||||
|
||||
self.destination.validation = self.destination_validation
|
||||
|
||||
fields = [self.destination]
|
||||
super().__init__(data=data, fields=fields)
|
||||
|
||||
def destination_validation(self):
|
||||
host_key = self.destination.value
|
||||
host = HOST_POOL.get(host_key)
|
||||
if not host:
|
||||
self.add_error("No Such Host ({}) exists".format(self.destination.value))
|
||||
elif host.status != HostStatus.alive:
|
||||
self.add_error("Destination Host is dead")
|
||||
|
||||
def validation(self):
|
||||
vm = VM_POOL.get(self.uuid.value)
|
||||
if not (
|
||||
vm.value["owner"] == self.name.value or self.realm.value == "ungleich-admin"
|
||||
):
|
||||
self.add_error("Invalid User")
|
||||
|
||||
if vm.status != VMStatus.running:
|
||||
self.add_error("Can't migrate non-running VM")
|
||||
|
||||
if vm.hostname == os.path.join(HOST_PREFIX, self.destination.value):
|
||||
self.add_error("Destination host couldn't be same as Source Host")
|
||||
|
||||
|
||||
class AddSSHSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
self.key_name = Field("key_name", str, data.get("key_name", KeyError))
|
||||
self.key = Field("key", str, data.get("key_name", KeyError))
|
||||
|
||||
fields = [self.key_name, self.key]
|
||||
super().__init__(data=data, fields=fields)
|
||||
|
||||
|
||||
class RemoveSSHSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
self.key_name = Field("key_name", str, data.get("key_name", KeyError))
|
||||
|
||||
fields = [self.key_name]
|
||||
super().__init__(data=data, fields=fields)
|
||||
|
||||
|
||||
class GetSSHSchema(OTPSchema):
|
||||
def __init__(self, data):
|
||||
self.key_name = Field("key_name", str, data.get("key_name", None))
|
||||
|
||||
fields = [self.key_name]
|
||||
super().__init__(data=data, fields=fields)
|
||||
Loading…
Add table
Add a link
Reference in a new issue