expose action parameter debug to all actions (#5911)

* Update base.py

Expose debug action parameter as environment variable for all actions

* Update CHANGELOG.rst

Author: maxfactor1

CHANGELOG.rst

@@ -24,6 +24,9 @@ Added
 * Added publisher to ActionAlias to enable streaming ActionAlias create/update/delete events. #5763
   Contributed by @ubaumann
 
+* Expose environment variable ST2_ACTION_DEBUG to all StackStorm actions.
+  Contributed by @maxfactor1
+
 
 3.8.0 - November 18, 2022
 -------------------------

st2common/st2common/runners/base.py

@@ -155,6 +155,7 @@ def __init__(self, runner_id):
         self.context = None
         self.auth_token = None
         self.rerun_ex_ref = None
+        self._debug = None
 
     def pre_run(self):
         # Handle runner "enabled" attribute
@@ -233,6 +234,7 @@ def _get_common_action_env_variables(self):
         result["ST2_ACTION_PACK_NAME"] = self.get_pack_ref()
         result["ST2_ACTION_EXECUTION_ID"] = str(self.execution_id)
         result["ST2_ACTION_API_URL"] = get_full_public_api_url()
+        result["ST2_ACTION_DEBUG"] = str(self._debug)
 
         if self.auth_token:
             result["ST2_ACTION_AUTH_TOKEN"] = self.auth_token.token