Adding log to db_sync

if called by mistral-db-manage it will log info level
    to /var/log/mistral/mistral-db-manage

Included some debug level logging also for main actions.

Change-Id: I0574b38efcc0dd7485953bf3089ff0a5a3ef6394
Closes-Bug: #1689821

mistral/db/sqlalchemy/migration/cli.py

@@ -19,6 +19,7 @@ from alembic import command as alembic_cmd
 from alembic import config as alembic_cfg
 from alembic import util as alembic_u
 from oslo_config import cfg
+from oslo_log import log as logging
 from oslo_utils import importutils
 import six
 import sys
@@ -34,6 +35,7 @@ importutils.try_import('mistral.api.app')
 
 
 CONF = cfg.CONF
+LOG = logging.getLogger(__name__)
 
 
 def do_alembic_command(config, cmd, *args, **kwargs):
@@ -69,6 +71,7 @@ def do_stamp(config, cmd):
 
 
 def do_populate(config, cmd):
+    LOG.info("populating db")
     action_manager.sync_db()
     workflows.sync_db()
 
@@ -127,8 +130,10 @@ def main():
     )
     # attach the Mistral conf to the Alembic conf
     config.mistral_config = CONF
+    logging.register_options(CONF)
 
     CONF(project='mistral')
+    logging.setup(CONF, 'Mistral')
     CONF.command.func(config, CONF.command.name)
 
 if __name__ == '__main__':

mistral/services/workflows.py

@@ -18,12 +18,15 @@ from mistral.lang import parser as spec_parser
 from mistral import utils
 from mistral.workflow import data_flow
 from mistral.workflow import states
+from oslo_log import log as logging
 
 
 STD_WF_PATH = 'resources/workflows'
+LOG = logging.getLogger(__name__)
 
 
 def register_standard_workflows(run_in_tx=True):
+    LOG.debug("registering standard workflows")
     workflow_paths = utils.get_file_list(STD_WF_PATH)
 
     for wf_path in workflow_paths:
@@ -42,6 +45,7 @@ def _clear_system_workflow_db():
 
 
 def sync_db():
+    LOG.debug("Syncing db")
     with db_api.transaction():
         _clear_system_workflow_db()
         register_standard_workflows(run_in_tx=False)
@@ -49,6 +53,7 @@ def sync_db():
 
 def create_workflows(definition, scope='private', is_system=False,
                      run_in_tx=True):
+    LOG.debug("creating workflows")
     wf_list_spec = spec_parser.get_workflow_list_spec_from_yaml(definition)
     db_wfs = []
 
@@ -81,6 +86,7 @@ def _append_all_workflows(definition, is_system, scope, wf_list_spec, db_wfs):
 
 
 def update_workflows(definition, scope='private', identifier=None):
+    LOG.debug("updating workflows")
     wf_list_spec = spec_parser.get_workflow_list_spec_from_yaml(definition)
     wfs = wf_list_spec.get_workflows()
 

tools/sync_db.py

@@ -24,6 +24,7 @@ from mistral.services import action_manager
 from mistral.services import workflows
 
 CONF = cfg.CONF
+LOG = logging.getLogger(__name__)
 
 
 def main():
@@ -37,16 +38,21 @@ def main():
 
     CONF.register_cli_opt(config.os_actions_mapping_path)
 
+    logging.register_options(CONF)
+
     config.parse_args()
 
     if len(CONF.config_file) == 0:
         print("Usage: sync_db --config-file <path-to-config-file>")
         return exit(1)
-
     logging.setup(CONF, 'Mistral')
 
+    LOG.info("Starting db_sync")
+
+    LOG.debug("Setting up db")
     db_api.setup_db()
 
+    LOG.debug("populating db")
     action_manager.sync_db()
     workflows.sync_db()