300 lines
12 KiB
Python
300 lines
12 KiB
Python
"""Роуты для работы с инстансами (VM/LXC) — создание, действия, удаление, статус."""
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import logging
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from typing import List
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from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException
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from sqlalchemy.orm import Session, joinedload
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from .. import models, proxmox_client as pve, schemas
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from ..config import settings
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from ..database import SessionLocal, get_db
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from ..deps import get_current_user
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logger = logging.getLogger(__name__)
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router = APIRouter(prefix="/instances", tags=["instances"])
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# ---------- helpers ----------
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def _ensure_owner(instance: models.Instance, user: models.User) -> None:
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"""Проверяет, что инстанс принадлежит пользователю (или пользователь — админ)."""
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if user.role == models.Role.admin:
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return
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if instance.owner_id != user.id:
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raise HTTPException(status_code=404, detail="VPS не найден")
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def _sanitize_name(raw: str) -> str:
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"""Имя для Proxmox: только латиница/цифры/дефис, в нижнем регистре."""
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cleaned = "".join(c for c in raw.strip() if c.isalnum() or c == "-").lower()
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return cleaned or "vps"
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# ---------- list ----------
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@router.get("", response_model=List[schemas.InstanceOut])
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def list_my_instances(
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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"""Список инстансов. Админ видит все, клиент — только свои."""
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query = db.query(models.Instance).options(joinedload(models.Instance.template))
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query = query.filter(models.Instance.status != models.InstanceStatus.deleted)
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if user.role != models.Role.admin:
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query = query.filter(models.Instance.owner_id == user.id)
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return query.order_by(models.Instance.created_at.desc()).all()
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# ---------- create ----------
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def _provision(instance_id: int, template_id: int, node: str) -> None:
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"""Фоновое создание VPS через Proxmox API.
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Запускается через BackgroundTasks. Внутри — своя сессия БД,
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потому что основной запрос уже вернул ответ клиенту.
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"""
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db = SessionLocal()
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try:
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instance = db.query(models.Instance).filter(models.Instance.id == instance_id).first()
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if not instance:
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logger.warning("provision: instance %s не найден", instance_id)
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return
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template = db.query(models.Template).filter(models.Template.id == template_id).first()
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if not template:
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instance.status = models.InstanceStatus.error
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instance.root_password = "ERROR: шаблон не найден"
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db.commit()
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return
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try:
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clean_name = _sanitize_name(instance.name)
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if template.guest_type == models.GuestType.vm:
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pve.clone_vm(template.source_vmid, instance.vmid, clean_name, node)
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pve.resize_vm(instance.vmid, template.cores, template.memory_mb, node)
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pve.resize_disk(instance.vmid, template.disk_gb, node)
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if instance.ciuser and instance.root_password:
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pve.configure_cloud_init(
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instance.vmid, instance.ciuser, instance.root_password, node
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)
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pve.guest_action("vm", instance.vmid, "start", node)
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else:
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password = pve.create_lxc(
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new_vmid=instance.vmid,
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name=clean_name,
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template_volid=template.source_template,
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cores=template.cores,
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memory_mb=template.memory_mb,
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disk_gb=template.disk_gb,
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node=node,
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)
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instance.root_password = password
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pve.guest_action("lxc", instance.vmid, "start", node)
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instance.status = models.InstanceStatus.running
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logger.info("instance %s (vmid=%s) успешно создан и запущен", instance.id, instance.vmid)
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except Exception as exc:
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logger.exception("Ошибка провижининга instance %s", instance_id)
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instance.status = models.InstanceStatus.error
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instance.root_password = f"ERROR: {type(exc).__name__}: {exc}"
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db.commit()
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finally:
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db.close()
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@router.post("", response_model=schemas.InstanceOut)
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def create_instance(
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payload: schemas.InstanceCreate,
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background_tasks: BackgroundTasks,
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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"""Создаёт инстанс из шаблона. VMID берётся у Proxmox."""
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template = (
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db.query(models.Template)
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.filter(models.Template.id == payload.template_id, models.Template.is_active == True) # noqa: E712
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.first()
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)
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if not template:
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raise HTTPException(status_code=404, detail="Шаблон не найден")
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# Запрашиваем VMID у Proxmox. Если в БД уже есть запись с таким VMID
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# в "мёртвом" статусе — удаляем её, иначе insert упадёт с unique violation.
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vmid = None
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for _ in range(100):
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try:
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vmid = pve.get_next_vmid()
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except Exception as exc:
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logger.error("Proxmox недоступен при запросе nextid: %s", exc)
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raise HTTPException(status_code=502, detail=f"Proxmox недоступен: {exc}")
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active = (
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db.query(models.Instance)
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.filter(
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models.Instance.vmid == vmid,
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models.Instance.status != models.InstanceStatus.deleted,
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)
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.first()
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)
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if not active:
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break
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else:
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raise HTTPException(status_code=409, detail="Не удалось найти свободный VMID")
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if vmid is None:
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raise HTTPException(status_code=502, detail="Не удалось получить VMID от Proxmox")
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# Чистим «мёртвые» записи с тем же VMID.
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stale = (
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db.query(models.Instance)
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.filter(
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models.Instance.vmid == vmid,
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models.Instance.status.in_([
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models.InstanceStatus.error,
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models.InstanceStatus.deleted,
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models.InstanceStatus.deleting,
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]),
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)
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.all()
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)
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for s in stale:
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db.delete(s)
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if stale:
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db.commit()
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clean_name = _sanitize_name(payload.name)
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instance = models.Instance(
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name=clean_name,
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vmid=vmid,
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node=settings.pve_node,
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guest_type=template.guest_type,
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status=models.InstanceStatus.creating,
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owner_id=user.id,
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template_id=template.id,
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ciuser=payload.ciuser or None,
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root_password=payload.cipassword or None,
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)
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db.add(instance)
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db.commit()
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db.refresh(instance)
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background_tasks.add_task(_provision, instance.id, template.id, settings.pve_node)
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return instance
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# ---------- single-instance endpoints ----------
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@router.get("/{instance_id}", response_model=schemas.InstanceOut)
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def get_instance(
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instance_id: int,
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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instance = db.query(models.Instance).filter(models.Instance.id == instance_id).first()
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if not instance:
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raise HTTPException(status_code=404, detail="VPS не найден")
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_ensure_owner(instance, user)
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return instance
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@router.get("/{instance_id}/status")
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def get_instance_status(
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instance_id: int,
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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instance = db.query(models.Instance).filter(models.Instance.id == instance_id).first()
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if not instance:
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raise HTTPException(status_code=404, detail="VPS не найден")
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_ensure_owner(instance, user)
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try:
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return pve.get_status(instance.guest_type.value, instance.vmid, instance.node)
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except Exception as exc:
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logger.warning("get_status: proxmox недоступен для vmid=%s: %s", instance.vmid, exc)
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raise HTTPException(status_code=502, detail=f"Proxmox недоступен: {exc}")
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@router.get("/{instance_id}/ip", response_model=schemas.InstanceIPOut)
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def get_instance_ip(
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instance_id: int,
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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"""Возвращает IP-адрес инстанса (через QEMU Guest Agent или LXC-интерфейсы)."""
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instance = db.query(models.Instance).filter(models.Instance.id == instance_id).first()
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if not instance:
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raise HTTPException(status_code=404, detail="VPS не найден")
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_ensure_owner(instance, user)
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try:
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ip = pve.get_instance_ip(instance.vmid, instance.node)
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return schemas.InstanceIPOut(ip=ip)
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except Exception as exc:
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logger.warning("get_instance_ip: vmid=%s: %s", instance.vmid, exc)
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return schemas.InstanceIPOut(ip=f"ошибка: {exc}")
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@router.get("/{instance_id}/live")
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def get_instance_live(
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instance_id: int,
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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"""Live-показатели CPU/RAM/uptime."""
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instance = db.query(models.Instance).filter(models.Instance.id == instance_id).first()
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if not instance:
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raise HTTPException(status_code=404, detail="VPS не найден")
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_ensure_owner(instance, user)
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try:
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return pve.get_live_stats(instance.vmid, instance.node)
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except Exception as exc:
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logger.warning("get_instance_live: vmid=%s: %s", instance.vmid, exc)
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return {"cpu": 0, "mem_used": 0, "mem_total": 0, "uptime": 0, "status": "error", "error": str(exc)}
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@router.post("/{instance_id}/action")
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def instance_action(
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instance_id: int,
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payload: schemas.InstanceAction,
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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"""Действие над инстансом: start | stop | shutdown | reboot."""
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instance = db.query(models.Instance).filter(models.Instance.id == instance_id).first()
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if not instance:
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raise HTTPException(status_code=404, detail="VPS не найден")
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_ensure_owner(instance, user)
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try:
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pve.guest_action(instance.guest_type.value, instance.vmid, payload.action, instance.node)
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=str(exc))
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except Exception as exc:
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logger.warning("instance_action: vmid=%s action=%s: %s", instance.vmid, payload.action, exc)
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raise HTTPException(status_code=502, detail=f"Ошибка: {exc}")
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if payload.action == "start":
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instance.status = models.InstanceStatus.running
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elif payload.action in ("stop", "shutdown"):
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instance.status = models.InstanceStatus.stopped
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db.commit()
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return {"ok": True}
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@router.delete("/{instance_id}")
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def delete_instance(
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instance_id: int,
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db: Session = Depends(get_db),
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user: models.User = Depends(get_current_user),
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):
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"""Удаляет VM/LXC в Proxmox и помечает запись как deleted."""
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instance = db.query(models.Instance).filter(models.Instance.id == instance_id).first()
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if not instance:
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raise HTTPException(status_code=404, detail="VPS не найден")
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_ensure_owner(instance, user)
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try:
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pve.delete_guest(instance.guest_type.value, instance.vmid, instance.node)
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except Exception as exc:
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logger.warning("delete_instance: vmid=%s: %s", instance.vmid, exc)
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raise HTTPException(status_code=502, detail=f"Ошибка удаления: {exc}")
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instance.status = models.InstanceStatus.deleted
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db.commit()
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return {"ok": True}
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