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68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
"""Run a local Linux VM in Python with the Cua Sandbox SDK.
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async with Sandbox.ephemeral(Image.linux(kind="vm"), local=True) as sb:
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await sb.shell.run("uname -a")
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screenshot = await sb.screenshot()
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Sandbox.ephemeral() auto-selects QEMURuntime (docker mode) for Linux VMs,
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provisions the environment, and tears it down on exit. Use local=True to run on
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your machine; drop it to run on the Cua cloud instead.
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Contrast:
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Image.linux() + local=True -> Docker container (fast, no VM overhead)
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Image.linux(kind="vm") + local=True -> QEMU VM (full kernel isolation)
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Image.linux(kind="vm") + local=False -> Cua cloud VM
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"""
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from __future__ import annotations
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import asyncio
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import subprocess
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import pytest
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from cua_sandbox import Image, Sandbox
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pytestmark = pytest.mark.asyncio
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def _has_docker() -> bool:
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try:
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subprocess.run(["docker", "info"], capture_output=True, check=True, timeout=10)
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return True
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except (subprocess.SubprocessError, FileNotFoundError):
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return False
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@pytest.mark.skipif(not _has_docker(), reason="Docker not available")
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async def test_linux_local_vm():
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async with Sandbox.ephemeral(
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Image.linux("ubuntu", "24.04", kind="vm"),
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local=True,
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name="example-linux-local-vm",
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) as sb:
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result = await sb.shell.run("uname -s")
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assert result.success
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assert "Linux" in result.stdout
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screenshot = await sb.screenshot()
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assert screenshot[:4] == b"\x89PNG"
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async def main():
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async with Sandbox.ephemeral(
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Image.linux("ubuntu", "24.04", kind="vm"),
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local=True,
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name="example-linux-local-vm",
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) as sb:
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result = await sb.shell.run("uname -s")
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print(f"uname: {result.stdout.strip()}")
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screenshot = await sb.screenshot()
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print(f"Screenshot: {len(screenshot)} bytes")
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with open("/tmp/linux_local_vm.png", "wb") as f:
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f.write(screenshot)
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if __name__ == "__main__":
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asyncio.run(main())
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