518 lines
16 KiB
Python
518 lines
16 KiB
Python
import json
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import pynetbox
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from uuid import uuid4
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from os.path import join as join_path
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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 import counters
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from ucloud.common.vm import VMStatus
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from ucloud.common.request import RequestEntry, RequestType
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from ucloud.config import (etcd_client, request_pool, vm_pool, host_pool, env_vars, image_storage_handler)
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from . import schemas
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from .helper import generate_mac, mac2ipv6
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from . import logger
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app = Flask(__name__)
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api = Api(app)
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class CreateVM(Resource):
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"""API Request to Handle Creation of VM"""
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@staticmethod
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def post():
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data = request.json
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validator = schemas.CreateVMSchema(data)
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if validator.is_valid():
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vm_uuid = uuid4().hex
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vm_key = join_path(env_vars.get("VM_PREFIX"), vm_uuid)
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specs = {
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"cpu": validator.specs["cpu"],
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"ram": validator.specs["ram"],
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"os-ssd": validator.specs["os-ssd"],
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"hdd": validator.specs["hdd"],
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}
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macs = [generate_mac() for _ in range(len(data["network"]))]
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tap_ids = [counters.increment_etcd_counter(etcd_client, "/v1/counter/tap")
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for _ in range(len(data["network"]))]
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vm_entry = {
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"name": data["vm_name"],
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"owner": data["name"],
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"owner_realm": data["realm"],
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"specs": specs,
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"hostname": "",
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"status": VMStatus.stopped,
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"image_uuid": validator.image_uuid,
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"log": [],
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"vnc_socket": "",
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"network": list(zip(data["network"], macs, tap_ids)),
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"metadata": {"ssh-keys": []},
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}
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etcd_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(
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type=RequestType.ScheduleVM, uuid=vm_uuid,
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request_prefix=env_vars.get("REQUEST_PREFIX")
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)
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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 = schemas.VMStatusSchema(data)
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if validator.is_valid():
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vm = vm_pool.get(
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join_path(env_vars.get("VM_PREFIX"), data["uuid"])
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)
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vm_value = vm.value.copy()
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vm_value["ip"] = []
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for network_mac_and_tap in vm.network:
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network_name, mac, tap = network_mac_and_tap
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network = etcd_client.get(
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join_path(
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env_vars.get("NETWORK_PREFIX"),
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data["name"],
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network_name,
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),
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value_in_json=True,
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)
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ipv6_addr = network.value.get("ipv6").split("::")[0] + "::"
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vm_value["ip"].append(mac2ipv6(mac, ipv6_addr))
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vm.value = vm_value
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return vm.value
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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 = schemas.CreateImageSchema(data)
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if validator.is_valid():
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file_entry = etcd_client.get(
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join_path(env_vars.get("FILE_PREFIX"), data["uuid"])
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)
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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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etcd_client.put(
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join_path(env_vars.get("IMAGE_PREFIX"), data["uuid"]),
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json.dumps(image_entry_json),
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)
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return {"message": "Image queued for creation."}
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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 = etcd_client.get_prefix(
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env_vars.get("IMAGE_PREFIX"), value_in_json=True
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)
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r = {
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"images": []
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}
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for image in images:
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image_key = "{}:{}".format(
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image.value["store_name"], image.value["name"]
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)
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r["images"].append(
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{"name": image_key, "status": image.value["status"]}
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)
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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 = schemas.VmActionSchema(data)
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if validator.is_valid():
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vm_entry = vm_pool.get(
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join_path(env_vars.get("VM_PREFIX"), data["uuid"])
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)
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action = data["action"]
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if action == "start":
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action = "schedule"
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if action == "delete" and vm_entry.hostname == "":
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if image_storage_handler.is_vm_image_exists(vm_entry.uuid):
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r_status = image_storage_handler.delete_vm_image(vm_entry.uuid)
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if r_status:
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etcd_client.client.delete(vm_entry.key)
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return {"message": "VM successfully deleted"}
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else:
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logger.error("Some Error Occurred while deleting VM")
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return {"message": "VM deletion unsuccessfull"}
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else:
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etcd_client.client.delete(vm_entry.key)
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return {"message": "VM successfully deleted"}
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r = RequestEntry.from_scratch(
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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_prefix=env_vars.get("REQUEST_PREFIX")
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)
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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 = schemas.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(
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type=RequestType.ScheduleVM,
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uuid=vm.uuid,
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destination=join_path(
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env_vars.get("HOST_PREFIX"), validator.destination.value
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),
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migration=True,
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request_prefix=env_vars.get("REQUEST_PREFIX")
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)
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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 = schemas.OTPSchema(data)
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if validator.is_valid():
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vms = etcd_client.get_prefix(
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env_vars.get("VM_PREFIX"), value_in_json=True
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)
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return_vms = []
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user_vms = 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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"name": vm.value["name"],
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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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# "mac": vm.value["mac"],
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"vnc_socket": None
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if vm.value.get("vnc_socket", None) is None
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else vm.value["vnc_socket"],
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}
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)
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if return_vms:
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return {"message": return_vms}, 200
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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 = schemas.OTPSchema(data)
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if validator.is_valid():
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files = etcd_client.get_prefix(
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env_vars.get("FILE_PREFIX"), value_in_json=True
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)
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return_files = []
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user_files = list(
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filter(lambda f: f.value["owner"] == data["name"], files)
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)
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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 = schemas.CreateHostSchema(data)
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if validator.is_valid():
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host_key = join_path(env_vars.get("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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etcd_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 = {
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host.key: {
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"status": host.status,
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"specs": host.specs,
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"hostname": host.hostname,
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}
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for host in hosts
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}
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return r, 200
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class GetSSHKeys(Resource):
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@staticmethod
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def get():
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data = request.json
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validator = schemas.GetSSHSchema(data)
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if validator.is_valid():
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if not validator.key_name.value:
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# {user_prefix}/{realm}/{name}/key/
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etcd_key = join_path(
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env_vars.get('USER_PREFIX'),
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data["realm"],
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data["name"],
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"key",
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)
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etcd_entry = etcd_client.get_prefix(
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etcd_key, value_in_json=True
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)
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keys = {
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key.key.split("/")[-1]: key.value for key in etcd_entry
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}
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return {"keys": keys}
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else:
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# {user_prefix}/{realm}/{name}/key/{key_name}
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etcd_key = join_path(
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env_vars.get('USER_PREFIX'),
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data["realm"],
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data["name"],
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"key",
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data["key_name"],
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)
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etcd_entry = etcd_client.get(etcd_key, value_in_json=True)
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if etcd_entry:
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return {
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"keys": {
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etcd_entry.key.split("/")[-1]: etcd_entry.value
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}
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}
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else:
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return {"keys": {}}
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else:
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return validator.get_errors(), 400
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class AddSSHKey(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.AddSSHSchema(data)
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if validator.is_valid():
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# {user_prefix}/{realm}/{name}/key/{key_name}
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etcd_key = join_path(
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env_vars.get("USER_PREFIX"),
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data["realm"],
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data["name"],
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"key",
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data["key_name"],
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)
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etcd_entry = etcd_client.get(etcd_key, value_in_json=True)
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if etcd_entry:
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return {
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"message": "Key with name '{}' already exists".format(
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data["key_name"]
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)
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}
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else:
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# Key Not Found. It implies user' haven't added any key yet.
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etcd_client.put(etcd_key, data["key"], value_in_json=True)
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return {"message": "Key added successfully"}
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else:
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return validator.get_errors(), 400
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class RemoveSSHKey(Resource):
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@staticmethod
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def get():
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data = request.json
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validator = schemas.RemoveSSHSchema(data)
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if validator.is_valid():
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# {user_prefix}/{realm}/{name}/key/{key_name}
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etcd_key = join_path(
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env_vars.get("USER_PREFIX"),
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data["realm"],
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data["name"],
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"key",
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data["key_name"],
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)
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etcd_entry = etcd_client.get(etcd_key, value_in_json=True)
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if etcd_entry:
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etcd_client.client.delete(etcd_key)
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return {"message": "Key successfully removed."}
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else:
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return {
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"message": "No Key with name '{}' Exists at all.".format(
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data["key_name"]
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)
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}
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else:
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return validator.get_errors(), 400
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class CreateNetwork(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.CreateNetwork(data)
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if validator.is_valid():
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network_entry = {
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"id": counters.increment_etcd_counter(
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etcd_client, "/v1/counter/vxlan"
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),
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"type": data["type"],
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}
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if validator.user.value:
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nb = pynetbox.api(
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url=env_vars.get("NETBOX_URL"),
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token=env_vars.get("NETBOX_TOKEN"),
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)
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nb_prefix = nb.ipam.prefixes.get(
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prefix=env_vars.get("PREFIX")
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)
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prefix = nb_prefix.available_prefixes.create(
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data={
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"prefix_length": env_vars.get(
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"PREFIX_LENGTH", cast=int
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),
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"description": '{}\'s network "{}"'.format(
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data["name"], data["network_name"]
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),
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"is_pool": True,
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}
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)
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network_entry["ipv6"] = prefix["prefix"]
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else:
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network_entry["ipv6"] = "fd00::/64"
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network_key = join_path(
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env_vars.get("NETWORK_PREFIX"),
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data["name"],
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data["network_name"],
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)
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etcd_client.put(network_key, network_entry, value_in_json=True)
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return {"message": "Network successfully added."}
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else:
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return validator.get_errors(), 400
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class ListUserNetwork(Resource):
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@staticmethod
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def get():
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data = request.json
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validator = schemas.OTPSchema(data)
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if validator.is_valid():
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prefix = join_path(
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env_vars.get("NETWORK_PREFIX"), data["name"]
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)
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networks = etcd_client.get_prefix(prefix, value_in_json=True)
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user_networks = []
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for net in networks:
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net.value["name"] = net.key.split("/")[-1]
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user_networks.append(net.value)
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return {"networks": user_networks}, 200
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else:
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return validator.get_errors(), 400
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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(ListUserNetwork, "/user/networks")
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api.add_resource(AddSSHKey, "/user/add-ssh")
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api.add_resource(RemoveSSHKey, "/user/remove-ssh")
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api.add_resource(GetSSHKeys, "/user/get-ssh")
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api.add_resource(CreateHost, "/host/create")
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api.add_resource(ListHost, "/host/list")
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api.add_resource(CreateNetwork, "/network/create")
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def main():
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image_stores = list(etcd_client.get_prefix(env_vars.get('IMAGE_STORE_PREFIX'), value_in_json=True))
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if len(image_stores) == 0:
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data = {
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"is_public": True,
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"type": "ceph",
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"name": "images",
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"description": "first ever public image-store",
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"attributes": {"list": [], "key": [], "pool": "images"},
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}
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etcd_client.put(join_path(env_vars.get('IMAGE_STORE_PREFIX'), uuid4().hex), json.dumps(data))
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app.run(host="::", debug=True)
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if __name__ == "__main__":
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main()
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