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