# TODO # convert etcd3 usage to etcd3_wrapper import etcd3 import json from helper import check_otp, add_otp_args, add_vmid_args from flask import Flask from flask_restful import Resource, Api, reqparse from decouple import config from uuid import uuid4 from etcd3_wrapper import Etcd3Wrapper app = Flask(__name__) api = Api(app) etcd_client = etcd3.client(host=config("ETCD_HOST"), port=int(config("ETCD_PORT"))) client = Etcd3Wrapper() # CreateVM argparser createvm_argparser = reqparse.RequestParser() createvm_argparser.add_argument("specs", type=dict, required=True) createvm_argparser.add_argument("image_uuid", type=str, required=True) add_otp_args(createvm_argparser) # CreateImage argparser createimage_argparser = reqparse.RequestParser() createimage_argparser.add_argument("uuid", type=str, required=True) createimage_argparser.add_argument("name", type=str, required=True) createimage_argparser.add_argument("image_store", type=str, required=True) # DeleteVM argparser deletevm_argparser = reqparse.RequestParser() add_vmid_args(add_otp_args(deletevm_argparser)) # VMStatus argparser vmstatus_argparser = reqparse.RequestParser() add_vmid_args(vmstatus_argparser) # StartVM argparser startvm_argparser = reqparse.RequestParser() add_vmid_args(add_otp_args(startvm_argparser)) # UserVM argparser uservm_argparser = reqparse.RequestParser() add_otp_args(uservm_argparser) def is_image_valid(image_uuid): images = client.get_prefix("/v1/image/") return image_uuid in [i.key.split("/")[-1] for i in images] class CreateVM(Resource): def post(self): createvm_args = createvm_argparser.parse_args() name, realm, token, specs, image_uuid = createvm_args.name, createvm_args.realm,\ createvm_args.token, createvm_args.specs,\ createvm_args.image_uuid if check_otp(name, realm, token) == 200: # User is good if is_image_valid(image_uuid): vm_key = f"/v1/vm/{uuid4().hex}" vm_entry = {"owner": name, "specs": specs, "hostname": "", "status": "REQUESTED_NEW", "image_uuid": image_uuid} etcd_client.put(vm_key, json.dumps(vm_entry)) return {"message": "VM Creation Queued"}, 200 else: return {"message": "Image uuid not valid"} else: return {"message": "Invalid Credentials"}, 400 class DeleteVM(Resource): def post(self): deletevm_args = deletevm_argparser.parse_args() name, realm, token, vmid = deletevm_args.name, deletevm_args.realm,\ deletevm_args.token, deletevm_args.vmid if check_otp(name, realm, token) == 200: # User is good vmentry_etcd = etcd_client.get(f"/v1/vm/{vmid}")[0] if vmentry_etcd: vmentry_etcd = json.loads(vmentry_etcd) vmentry_etcd["status"] = "REQUESTED_DELETE" etcd_client.put(f"/v1/vm/{vmid}", json.dumps(vmentry_etcd)) return {"message": "VM Deletion Queued"}, 200 else: return {"message": "Invalid VM ID"} else: return {"message": "Invalid Credentials"}, 400 class VmStatus(Resource): def get(self): args = vmstatus_argparser.parse_args() r = etcd_client.get(f"/v1/vm/{args.vmid}")[0] print(r) if r: r = dict(json.loads(r.decode("utf-8"))) return r return {"Message": "Not Found"} class CreateImage(Resource): def post(self): image_stores = list(client.get_prefix("/v1/image_store/")) args = createimage_argparser.parse_args() image_file_uuid = args.uuid image_store_name = args.image_store file_entry = client.get(f"/v1/files/{image_file_uuid}") if file_entry is None: return { "Message": f"Image File with uuid '{image_file_uuid}' Not Found"}, 400 file_entry_value = json.loads(file_entry.value) image_store = list(filter(lambda s: json.loads(s.value)["name"] == image_store_name, image_stores)) if not image_store: return {"Message": f"Store '{image_store_name}' does not exists"}, 400 image_store = image_store[0] image_entry_json = { "status": "TO_BE_CREATED", "owner": file_entry_value["owner"], "filename": file_entry_value["filename"], "name": args.name, "store_name": image_store_name, "visibility": "public" } client.put(f"/v1/image/{image_file_uuid}", json.dumps(image_entry_json)) return {"Message": "Image successfully created"} class ListPublicImages(Resource): def get(self): images = client.get_prefix("/v1/image/") r = {} for image in images: r[image.key.split("/")[-1]] = json.loads(image.value) return r, 200 class StartVM(Resource): def post(self): args = startvm_argparser.parse_args() name, realm, token, vm_uuid = args.name, args.realm, args.token, args.vmid if check_otp(name, realm, token) == 200: vm = client.get(f"/v1/vm/{vm_uuid}", value_in_json=True) if vm: vm.value["status"] = "REQUESTED_START" client.put(vm.key, json.dumps(vm.value)) return {"message": f"VM Start Queued"} else: return {"message": "No such VM found"} else: return {"message": "Invalid Credentials"}, 400 class SuspendVM(Resource): def post(self): args = startvm_argparser.parse_args() name, realm, token, vm_uuid = args.name, args.realm, args.token, args.vmid if check_otp(name, realm, token) == 200: vm = client.get(f"/v1/vm/{vm_uuid}", value_in_json=True) if vm: vm.value["status"] = "REQUESTED_SUSPEND" client.put(vm.key, json.dumps(vm.value)) return {"message": f"VM Suspension Queued"} else: return {"message": "No such VM found"} else: return {"message": "Invalid Credentials"}, 400 class ResumeVM(Resource): def post(self): args = startvm_argparser.parse_args() name, realm, token, vm_uuid = args.name, args.realm, args.token, args.vmid if check_otp(name, realm, token) == 200: vm = client.get(f"/v1/vm/{vm_uuid}", value_in_json=True) if vm: vm.value["status"] = "REQUESTED_RESUME" client.put(vm.key, json.dumps(vm.value)) return {"message": f"VM Resume Queued"} else: return {"message": "No such VM found"} else: return {"message": "Invalid Credentials"}, 400 class ListUserVM(Resource): def get(self): args = uservm_argparser.parse_args() name, realm, token = args.name, args.realm, args.token if check_otp(name, realm, token) == 200: vms = client.get_prefix(f"/v1/vm/", value_in_json=True) if vms: return_vms = [] user_vms = list(filter(lambda v: v.value["owner"] == name, vms)) for vm in user_vms: return_vms.append({ "vm_uuid": vm.key.split("/")[-1], "specs": vm.value["specs"], "status": vm.value["status"] }) return {"message": return_vms}, 200 else: return {"message": "No VM found"}, 404 else: return {"message": "Invalid Credentials"}, 400 api.add_resource(CreateVM, "/vm/create") api.add_resource(DeleteVM, "/vm/delete") api.add_resource(VmStatus, "/vm/status") api.add_resource(StartVM, "/vm/start") api.add_resource(SuspendVM, "/vm/suspend") api.add_resource(ResumeVM, "/vm/resume") api.add_resource(CreateImage, "/image/create") api.add_resource(ListPublicImages, "/image/list-public") api.add_resource(ListUserVM, "/user/vms") if __name__ == "__main__": app.run(host="::", debug=True)