Raise error on 'fatal' and 'error' log levels

piker/data/_ahab.py

@@ -33,7 +33,10 @@ from tractor.msg import NamespacePath
 import docker
 import json
 from docker.models.containers import Container as DockerContainer
-from docker.errors import DockerException, APIError
+from docker.errors import (
+    DockerException,
+    APIError,
+)
 from requests.exceptions import ConnectionError, ReadTimeout
 
 from ..log import get_logger, get_console_log
@@ -46,6 +49,10 @@ class DockerNotStarted(Exception):
     'Prolly you dint start da daemon bruh'
 
 
+class ContainerError(RuntimeError):
+    'Error reported via app-container logging level'
+
+
 @acm
 async def open_docker(
     url: Optional[str] = None,
@@ -148,6 +155,10 @@ class Container:
 
                     getattr(log, level, log.error)(f'{msg}')
 
+                    # print(f'level: {level}')
+                    if level in ('error', 'fatal'):
+                        raise ContainerError(msg)
+
                 if patt in msg:
                     return True