268 lines
8.7 KiB
Python
Executable file
268 lines
8.7 KiB
Python
Executable file
# TODO
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# 1. Allow user of realm ungleich-admin to perform any action on
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# any user vm.
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import json
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import subprocess
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import os
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from uuid import uuid4
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from flask import Flask, request
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from flask_restful import Resource, Api
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from ucloud_common.vm import VmPool, VMStatus
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from ucloud_common.host import HostPool
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from ucloud_common.request import (RequestEntry,
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RequestPool,
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RequestType)
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from config import etcd_client as client
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from config import (WITHOUT_CEPH, VM_PREFIX,
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HOST_PREFIX, REQUEST_PREFIX,
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FILE_PREFIX, IMAGE_PREFIX,
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logging)
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from schemas import (CreateVMSchema, VMStatusSchema,
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CreateImageSchema, VmActionSchema,
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OTPSchema, CreateHostSchema,
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VmMigrationSchema)
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app = Flask(__name__)
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api = Api(app)
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VM_POOL = VmPool(client, VM_PREFIX)
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HOST_POOL = HostPool(client, HOST_PREFIX)
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REQUEST_POOL = RequestPool(client, REQUEST_PREFIX)
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class CreateVM(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = CreateVMSchema(data)
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if validator.is_valid():
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vm_uuid = uuid4().hex
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vm_key = os.path.join(VM_PREFIX, vm_uuid)
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vm_entry = {
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"owner": data["name"],
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"specs": data["specs"],
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"hostname": "",
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"status": "",
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"image_uuid": data["image_uuid"],
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"log": [],
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"storage_attachment": []
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}
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client.put(vm_key, vm_entry, value_in_json=True)
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# Create ScheduleVM Request
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r = RequestEntry.from_scratch(type=RequestType.ScheduleVM,
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uuid=vm_uuid)
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REQUEST_POOL.put(r)
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return {"message": "VM Creation Queued"}, 200
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return validator.get_errors(), 400
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class VmStatus(Resource):
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@staticmethod
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def get():
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data = request.json
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validator = VMStatusSchema(data)
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if validator.is_valid():
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vm = VM_POOL.get(os.path.join(VM_PREFIX, data['uuid']))
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return str(vm)
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else:
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return validator.get_errors(), 400
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class CreateImage(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = CreateImageSchema(data)
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if validator.is_valid():
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file_entry = client.get(os.path.join(FILE_PREFIX, data['uuid']))
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file_entry_value = json.loads(file_entry.value)
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image_entry_json = {
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"status": "TO_BE_CREATED",
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"owner": file_entry_value["owner"],
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"filename": file_entry_value["filename"],
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"name": data["name"],
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"store_name": data["image_store"],
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"visibility": "public",
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}
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client.put(os.path.join(IMAGE_PREFIX, data['uuid']), json.dumps(image_entry_json))
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return {"message": "Image successfully created"}
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return validator.get_errors(), 400
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class ListPublicImages(Resource):
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@staticmethod
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def get():
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images = client.get_prefix(IMAGE_PREFIX)
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r = {}
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for image in images:
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r[image.key.split("/")[-1]] = json.loads(image.value)
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return r, 200
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class VMAction(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = VmActionSchema(data)
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if validator.is_valid():
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vm_entry = VM_POOL.get(os.path.join(VM_PREFIX, data['uuid']))
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action = data["action"]
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if action == "start":
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vm_entry.status = VMStatus.requested_start
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VM_POOL.put(vm_entry)
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action = "schedule"
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if action == "delete" and vm_entry.hostname == "":
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try:
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path_without_protocol = vm_entry.path[vm_entry.path.find(":")+1:]
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if WITHOUT_CEPH:
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command_to_delete = ["rm", os.path.join("/var/vm", vm_entry.uuid)]
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else:
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command_to_delete = ["rbd", "rm", path_without_protocol]
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subprocess.check_output(command_to_delete, stderr=subprocess.PIPE)
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except subprocess.CalledProcessError as e:
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if "No such file" in e.stderr.decode("utf-8"):
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client.client.delete(vm_entry.key)
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return {"message": "VM successfully deleted"}
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else:
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logging.exception(e)
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return {"message": "Some error occurred while deleting VM"}
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else:
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client.client.delete(vm_entry.key)
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return {"message": "VM successfully deleted"}
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r = RequestEntry.from_scratch(type="{}VM".format(action.title()),
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uuid=data['uuid'],
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hostname=vm_entry.hostname)
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REQUEST_POOL.put(r)
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return {"message": "VM {} Queued".format(action.title())}, 200
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else:
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return validator.get_errors(), 400
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class VMMigration(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = VmMigrationSchema(data)
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if validator.is_valid():
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vm = VM_POOL.get(data['uuid'])
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r = RequestEntry.from_scratch(type=RequestType.ScheduleVM,
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uuid=vm.uuid,
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destination=os.path.join(HOST_PREFIX, data["destination"]),
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migration=True)
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REQUEST_POOL.put(r)
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return {"message": "VM Migration Initialization Queued"}, 200
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else:
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return validator.get_errors(), 400
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class ListUserVM(Resource):
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@staticmethod
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def get():
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data = request.json
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validator = OTPSchema(data)
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if validator.is_valid():
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vms = client.get_prefix(VM_PREFIX, value_in_json=True)
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if vms:
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return_vms = []
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user_vms = list(filter(lambda v: v.value["owner"] == data["name"], vms))
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for vm in user_vms:
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return_vms.append(
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{
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"vm_uuid": vm.key.split("/")[-1],
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"specs": vm.value["specs"],
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"status": vm.value["status"],
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"hostname": vm.value["hostname"],
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"vnc_socket": vm.valie["vnc_socket"]
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}
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)
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return {"message": return_vms}, 200
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else:
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return {"message": "No VM found"}, 404
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else:
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return validator.get_errors(), 400
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class ListUserFiles(Resource):
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@staticmethod
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def get():
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data = request.json
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validator = OTPSchema(data)
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if validator.is_valid():
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files = client.get_prefix(FILE_PREFIX, value_in_json=True)
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return_files = []
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user_files = list(filter(lambda f: f.value["owner"] == data["name"], files))
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for file in user_files:
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return_files.append(
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{
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"filename": file.value["filename"],
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"uuid": file.key.split("/")[-1],
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}
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)
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return {"message": return_files}, 200
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else:
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return validator.get_errors(), 400
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class CreateHost(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = CreateHostSchema(data)
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if validator.is_valid():
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host_key = os.path.join(HOST_PREFIX, uuid4().hex)
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host_entry = {
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"specs": data["specs"],
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"hostname": data["hostname"],
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"status": "DEAD",
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"last_heartbeat": "",
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}
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client.put(host_key, host_entry, value_in_json=True)
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return {"message": "Host Created"}, 200
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return validator.get_errors(), 400
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class ListHost(Resource):
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@staticmethod
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def get():
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hosts = HOST_POOL.hosts
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r = {host.key: {"status": host.status, "specs": host.specs, "hostname": host.hostname} for host in hosts}
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return r, 200
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api.add_resource(CreateVM, "/vm/create")
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api.add_resource(VmStatus, "/vm/status")
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api.add_resource(VMAction, "/vm/action")
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api.add_resource(VMMigration, "/vm/migrate")
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api.add_resource(CreateImage, "/image/create")
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api.add_resource(ListPublicImages, "/image/list-public")
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api.add_resource(ListUserVM, "/user/vms")
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api.add_resource(ListUserFiles, "/user/files")
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api.add_resource(CreateHost, "/host/create")
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api.add_resource(ListHost, "/host/list")
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if __name__ == "__main__":
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app.run(host="::", debug=True)
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