[#103] Add host_status method to Host

Signed-off-by: Andrey Berezin <a.berezin@yadro.com>

src/frostfs_testlib/hosting/interfaces.py

@@ -4,6 +4,13 @@ from typing import Optional
 
 from frostfs_testlib.hosting.config import CLIConfig, HostConfig, ServiceConfig
 from frostfs_testlib.shell.interfaces import Shell
+from frostfs_testlib.testing.readable import HumanReadableEnum
+
+
+class HostStatus(HumanReadableEnum):
+    ONLINE = "Online"
+    OFFLINE = "Offline"
+    UNKNOWN = "Unknown"
 
 
 class DiskInfo(dict):
@@ -79,6 +86,10 @@ class Host(ABC):
     def start_host(self) -> None:
         """Starts the host machine."""
 
+    @abstractmethod
+    def get_host_status(self) -> HostStatus:
+        """Check host status."""
+
     @abstractmethod
     def stop_host(self, mode: str) -> None:
         """Stops the host machine.