eclipse misses deleted files :D
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from flask import Blueprint
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from flask import current_app
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from flask import request
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from werkzeug.exceptions import abort
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from capsulflask.db import get_model, my_exec_info_message
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bp = Blueprint("hosts", __name__, url_prefix="/hosts")
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def authorized_for_host(id):
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auth_header_value = request.headers.get('Authorization').replace("Bearer ", "")
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return get_model().authorized_for_host(id, auth_header_value)
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@bp.route("/heartbeat/<string:id>", methods=("POST"))
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def heartbeat(id):
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if authorized_for_host(id):
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get_model().host_heartbeat(id)
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else:
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current_app.logger.info(f"/hosts/heartbeat/{id} returned 401: invalid token")
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return abort(401, "invalid host id or token")
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import subprocess
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import re
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import requests
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import json
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import asyncio
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from typing import List
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from aiohttp import ClientSession
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from flask import current_app
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from time import sleep
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from os.path import join
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from subprocess import run
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from capsulflask.db_model import OnlineHost
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from capsulflask.db import get_model
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def validate_capsul_id(id):
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if not re.match(r"^(cvm|capsul)-[a-z0-9]{10}$", id):
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raise ValueError(f"vm id \"{id}\" must match \"^capsul-[a-z0-9]{{10}}$\"")
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class VirtualMachine:
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def __init__(self, id, ipv4=None, ipv6=None):
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self.id = id
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self.ipv4 = ipv4
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self.ipv6 = ipv6
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class OperationInterface:
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def capacity_avaliable(self, additional_ram_bytes: int) -> bool:
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pass
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def get(self, id: str) -> VirtualMachine:
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pass
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def list_ids(self) -> list:
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pass
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def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory: int, ssh_public_keys: list):
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pass
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def destroy(self, email: str, id: str):
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pass
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class MockVirtualization(OperationInterface):
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def capacity_avaliable(self, additional_ram_bytes):
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return True
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def get(self, id):
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validate_capsul_id(id)
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return VirtualMachine(id, ipv4="1.1.1.1")
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def list_ids(self) -> list:
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return get_model().all_non_deleted_vm_ids()
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def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_public_keys: list):
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validate_capsul_id(id)
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current_app.logger.info(f"mock create: {id} for {email}")
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sleep(1)
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def destroy(self, email: str, id: str):
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current_app.logger.info(f"mock destroy: {id} for {email}")
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class GoshtOperation(OperationInterface):
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async def post_json(self, method: str, url: str, body: str, session: ClientSession, **kwargs) -> str:
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resp = await session.request(method=method, url=url, json=body, **kwargs)
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resp.raise_for_status()
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return await resp.text()
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async def make_requests(self, online_hosts: List[OnlineHost], body: str, **kwargs) -> None:
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async with ClientSession() as session:
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tasks = []
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for host in online_hosts:
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tasks.append(
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self.post_json(method="POST", url=host.url, body=body, session=session, **kwargs)
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)
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results = await asyncio.gather(*tasks)
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# do something with results
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def validate_completed_process(self, completedProcess, email=None):
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emailPart = ""
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if email != None:
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emailPart = f"for {email}"
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if completedProcess.returncode != 0:
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raise RuntimeError(f"""{" ".join(completedProcess.args)} failed {emailPart} with exit code {completedProcess.returncode}
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stdout:
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{completedProcess.stdout}
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stderr:
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{completedProcess.stderr}
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""")
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def capacity_avaliable(self, additional_ram_bytes):
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online_hosts = get_model().get_online_hosts()
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payload = json.dumps(dict(type="capacity_avaliable", additional_ram_bytes=""))
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get_model().create_operation(online_hosts, None, payload)
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def get(self, id):
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validate_capsul_id(id)
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completedProcess = run([join(current_app.root_path, 'shell_scripts/get.sh'), id], capture_output=True)
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self.validate_completed_process(completedProcess)
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lines = completedProcess.stdout.splitlines()
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ipaddr = lines[0].decode("utf-8")
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if not re.match(r"^([0-9]{1,3}\.){3}[0-9]{1,3}$", ipaddr):
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return None
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return VirtualMachine(id, ipv4=ipaddr)
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def list_ids(self) -> list:
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completedProcess = run([join(current_app.root_path, 'shell_scripts/list-ids.sh')], capture_output=True)
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self.validate_completed_process(completedProcess)
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return list(map(lambda x: x.decode("utf-8"), completedProcess.stdout.splitlines() ))
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def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_public_keys: list):
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validate_capsul_id(id)
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if not re.match(r"^[a-zA-Z0-9/_.-]+$", template_image_file_name):
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raise ValueError(f"template_image_file_name \"{template_image_file_name}\" must match \"^[a-zA-Z0-9/_.-]+$\"")
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for ssh_public_key in ssh_public_keys:
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if not re.match(r"^(ssh|ecdsa)-[0-9A-Za-z+/_=@. -]+$", ssh_public_key):
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raise ValueError(f"ssh_public_key \"{ssh_public_key}\" must match \"^(ssh|ecdsa)-[0-9A-Za-z+/_=@. -]+$\"")
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if vcpus < 1 or vcpus > 8:
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raise ValueError(f"vcpus ({vcpus}) must match 1 <= vcpus <= 8")
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if memory_mb < 512 or memory_mb > 16384:
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raise ValueError(f"memory_mb ({memory_mb}) must match 512 <= memory_mb <= 16384")
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ssh_keys_string = "\n".join(ssh_public_keys)
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completedProcess = run([
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join(current_app.root_path, 'shell_scripts/create.sh'),
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id,
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template_image_file_name,
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str(vcpus),
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str(memory_mb),
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ssh_keys_string
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], capture_output=True)
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self.validate_completed_process(completedProcess, email)
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lines = completedProcess.stdout.splitlines()
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status = lines[len(lines)-1].decode("utf-8")
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vmSettings = f"""
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id={id}
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template_image_file_name={template_image_file_name}
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vcpus={str(vcpus)}
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memory={str(memory_mb)}
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ssh_public_keys={ssh_keys_string}
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"""
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if not status == "success":
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raise ValueError(f"""failed to create vm for {email} with:
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{vmSettings}
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stdout:
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{completedProcess.stdout}
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stderr:
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{completedProcess.stderr}
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""")
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def destroy(self, email: str, id: str):
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validate_capsul_id(id)
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completedProcess = run([join(current_app.root_path, 'shell_scripts/destroy.sh'), id], capture_output=True)
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self.validate_completed_process(completedProcess, email)
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lines = completedProcess.stdout.splitlines()
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status = lines[len(lines)-1].decode("utf-8")
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if not status == "success":
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raise ValueError(f"""failed to destroy vm "{id}" for {email}:
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stdout:
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{completedProcess.stdout}
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stderr:
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{completedProcess.stderr}
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""")
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