Add remaining health checks and shutdown on critical errors

apps/cic-eth/cic_eth/admin/ctrl.py

@@ -2,7 +2,7 @@
 import datetime
 import logging
 
-# third-party imports
+# external imports
 import celery
 from chainlib.eth.constant import ZERO_ADDRESS
 from chainlib.chain import ChainSpec
@@ -145,3 +145,9 @@ def check_lock(chained_input, chain_spec_dict, lock_flags, address=None):
     session.flush()
     session.close()
     return chained_input
+
+
+@celery_app.task()
+def shutdown(message):
+    logg.critical('shutdown called: {}'.format(message))
+    celery_app.control.shutdown() #broadcast('shutdown')

apps/cic-eth/cic_eth/admin/token.py

@@ -0,0 +1,19 @@
+# standard imports
+import logging
+
+# external imports
+import celery
+
+# local imports
+from cic_eth.task import BaseTask
+
+celery_app = celery.current_app
+logg = logging.getLogger()
+
+
+@celery_app.task(bind=True, base=BaseTask)
+def default_token(self):
+    return {
+            'symbol': self.default_token_symbol,
+            'address': self.default_token_address,
+            }