add vms
This commit is contained in:
parent
b46c40482a
commit
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@ -7,6 +7,7 @@
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inputs.sops-nix.nixosModules.sops
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# just some example options. Can be removed later
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./bloatware
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./vm.nix
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];
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options.clanSchema = lib.mkOption {
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type = lib.types.attrs;
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8
nixosModules/clanCore/vm.nix
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8
nixosModules/clanCore/vm.nix
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@ -0,0 +1,8 @@
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{ config, options, lib, ... }: {
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system.clan.vm.config = {
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enabled = options.virtualisation ? cores;
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} // (lib.optionalAttrs (options.virtualisation ? cores) {
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inherit (config.virtualisation) cores graphics;
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memory_size = config.virtualisation.memorySize;
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});
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}
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@ -3,7 +3,7 @@ from fastapi.routing import APIRoute
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from fastapi.staticfiles import StaticFiles
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from .assets import asset_path
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from .routers import health, machines, root
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from .routers import health, machines, root, vms
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def setup_app() -> FastAPI:
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@ -11,6 +11,8 @@ def setup_app() -> FastAPI:
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app.include_router(health.router)
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app.include_router(machines.router)
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app.include_router(root.router)
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app.include_router(vms.router)
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app.add_exception_handler(vms.NixBuildException, vms.nix_build_exception_handler)
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app.mount("/static", StaticFiles(directory=asset_path()), name="static")
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113
pkgs/clan-cli/clan_cli/webui/routers/vms.py
Normal file
113
pkgs/clan-cli/clan_cli/webui/routers/vms.py
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@ -0,0 +1,113 @@
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import asyncio
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import json
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import shlex
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from typing import Annotated, AsyncIterator
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from fastapi import APIRouter, Body, HTTPException, Request, status
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from fastapi.encoders import jsonable_encoder
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from fastapi.responses import JSONResponse, StreamingResponse
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from ...nix import nix_build, nix_eval
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from ..schemas import VmConfig, VmInspectResponse
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router = APIRouter()
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class NixBuildException(HTTPException):
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def __init__(self, msg: str, loc: list = ["body", "flake_attr"]):
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detail = [
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{
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"loc": loc,
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"msg": msg,
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"type": "value_error",
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}
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]
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super().__init__(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=detail
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)
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def nix_build_exception_handler(
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request: Request, exc: NixBuildException
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) -> JSONResponse:
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return JSONResponse(
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status_code=exc.status_code,
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content=jsonable_encoder(dict(detail=exc.detail)),
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)
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def nix_inspect_vm(machine: str, flake_url: str) -> list[str]:
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return nix_eval(
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[
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f"{flake_url}#nixosConfigurations.{json.dumps(machine)}.config.system.clan.vm.config"
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]
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)
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def nix_build_vm(machine: str, flake_url: str) -> list[str]:
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return nix_build(
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[
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f"{flake_url}#nixosConfigurations.{json.dumps(machine)}.config.system.build.vm"
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]
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)
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@router.post("/api/vms/inspect")
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async def inspect_vm(
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flake_url: Annotated[str, Body()], flake_attr: Annotated[str, Body()]
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) -> VmInspectResponse:
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cmd = nix_inspect_vm(flake_attr, flake_url=flake_url)
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proc = await asyncio.create_subprocess_exec(
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cmd[0],
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*cmd[1:],
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE,
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)
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stdout, stderr = await proc.communicate()
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if proc.returncode != 0:
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raise NixBuildException(
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f"""
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Failed to evaluate vm from '{flake_url}#{flake_attr}'.
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command: {shlex.join(cmd)}
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exit code: {proc.returncode}
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command output:
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{stderr.decode("utf-8")}
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"""
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)
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data = json.loads(stdout)
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return VmInspectResponse(
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config=VmConfig(flake_url=flake_url, flake_attr=flake_attr, **data)
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)
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async def vm_build(vm: VmConfig) -> AsyncIterator[str]:
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cmd = nix_build_vm(vm.flake_attr, flake_url=vm.flake_url)
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proc = await asyncio.create_subprocess_exec(
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cmd[0],
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*cmd[1:],
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE,
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)
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assert proc.stdout is not None and proc.stderr is not None
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async for line in proc.stdout:
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yield line.decode("utf-8", "ignore")
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stderr = ""
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async for line in proc.stderr:
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stderr += line.decode("utf-8", "ignore")
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res = await proc.wait()
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if res != 0:
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raise NixBuildException(
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f"""
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Failed to build vm from '{vm.flake_url}#{vm.flake_attr}'.
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command: {shlex.join(cmd)}
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exit code: {res}
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command output:
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{stderr}
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"""
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)
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@router.post("/api/vms/create")
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async def create_vm(vm: Annotated[VmConfig, Body()]) -> StreamingResponse:
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return StreamingResponse(vm_build(vm))
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@ -32,3 +32,16 @@ class ConfigResponse(BaseModel):
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class SchemaResponse(BaseModel):
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schema_: dict = Field(alias="schema")
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class VmConfig(BaseModel):
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flake_url: str
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flake_attr: str
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cores: int
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memory_size: int
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graphics: bool
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class VmInspectResponse(BaseModel):
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config: VmConfig
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@ -98,7 +98,8 @@ python3.pkgs.buildPythonPackage {
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chmod +w -R ./src
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cd ./src
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NIX_STATE_DIR=$TMPDIR/nix IN_NIX_SANDBOX=1 ${checkPython}/bin/python -m pytest -s ./tests
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export NIX_STATE_DIR=$TMPDIR/nix IN_NIX_SANDBOX=1
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${checkPython}/bin/python -m pytest -m "not impure" -s ./tests
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touch $out
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'';
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passthru.clan-openapi = runCommand "clan-openapi" { } ''
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15
pkgs/clan-cli/tests/test_flake_with_core/flake.nix
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15
pkgs/clan-cli/tests/test_flake_with_core/flake.nix
Normal file
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{
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# this placeholder is replaced by the path to nixpkgs
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inputs.clan-core.url = "__CLAN_CORE__";
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outputs = { self, clan-core }: {
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nixosConfigurations = clan-core.lib.buildClan {
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directory = self;
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machines = {
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vm1 = { modulesPath, ... }: {
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imports = [ "${toString modulesPath}/virtualisation/qemu-vm.nix" ];
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};
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};
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};
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};
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}
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33
pkgs/clan-cli/tests/test_vms_api.py
Normal file
33
pkgs/clan-cli/tests/test_vms_api.py
Normal file
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from pathlib import Path
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import pytest
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from api import TestClient
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@pytest.mark.impure
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def test_inspect(api: TestClient, test_flake_with_core: Path) -> None:
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response = api.post(
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"/api/vms/inspect",
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json=dict(flake_url=str(test_flake_with_core), flake_attr="vm1"),
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)
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assert response.status_code == 200, "Failed to inspect vm"
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config = response.json()["config"]
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assert config.get("flake_attr") == "vm1"
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assert config.get("cores") == 1
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assert config.get("memory_size") == 1024
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assert config.get("graphics") is True
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@pytest.mark.impure
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def test_create(api: TestClient, test_flake_with_core: Path) -> None:
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response = api.post(
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"/api/vms/create",
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json=dict(
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flake_url=str(test_flake_with_core),
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flake_attr="vm1",
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cores=1,
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memory_size=1024,
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graphics=True,
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),
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)
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assert response.status_code == 200, "Failed to inspect vm"
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