library/roles/ckan: Add a variable to store the supervisor fetch and gather app names.

d4science-ghn-cluster/roles/ckan: Add a handler to restart the gather and fetcher processes. See https://support.d4science.org/issues/7028

ckan/ckan/defaults/main.yml

@@ -146,3 +146,7 @@ ckan_production_ini_plugins_opts:
 
 ckan_gather_fetch_pkgs:
   - supervisor
+
+ckan_gather_fetch_apps:
+  - ckan_gather_consumer
+  - ckan_fetch_consumer

ckan/ckan/templates/ckan_harvesting.conf.j2

@@ -7,7 +7,7 @@
 command={{ ckan_virtenv }}/bin/paster --plugin=ckanext-harvest harvester gather_consumer --config={{ ckan_config_file }}
 
 ; user that owns virtual environment.
-user=ckan
+user={{ ckan_shell_user }}
 
 numprocs=1
 stdout_logfile={{ ckan_logdir }}/gather_consumer.log