Function _start_docker_linux

ci/util/docker_helper.py:369–422

Attempt to start Docker daemon on Linux. Returns: Tuple of (success, message)

()

def _start_docker_linux() -> tuple[bool, str]:
    """Attempt to start Docker daemon on Linux.

    Returns:
        Tuple of (success, message)
    """
    try:
        # Try systemctl first (modern systems)
        try:
            result = subprocess.run(
                ["sudo", "systemctl", "start", "docker"],
                capture_output=True,
                text=True,
                timeout=30,
                check=False,
            )
            if result.returncode == 0:
                # Wait for Docker to be ready
                for _ in range(30):
                    time.sleep(1)
                    if is_docker_available():
                        return True, "Docker daemon started via systemctl"
                return False, "Docker daemon started but is not responding"
        except FileNotFoundError:
            pass

        # Try service command (older systems)
        try:
            result = subprocess.run(
                ["sudo", "service", "docker", "start"],
                capture_output=True,
                text=True,
                timeout=30,
                check=False,
            )
            if result.returncode == 0:
                # Wait for Docker to be ready
                for _ in range(30):
                    time.sleep(1)
                    if is_docker_available():
                        return True, "Docker daemon started via service"
                return False, "Docker daemon started but is not responding"
        except FileNotFoundError:
            pass

        return (
            False,
            "Could not find systemctl or service command. Please ensure Docker is installed.",
        )
    except KeyboardInterrupt as ki:
        handle_keyboard_interrupt(ki)
        raise
    except Exception:
        return False, "Failed to start Docker: Unknown error"