Add an alembic config for fmn.

roles/notifs/backend/tasks/main.yml

@@ -17,6 +17,13 @@
   notify:
   - restart fedmsg-hub
 
+- name: copy the alembic configuration for DBAs
+  template: >
+    src=alembic.ini dest=/usr/share/fmn.lib/alembic.ini
+    owner=root group=sysadmin-dba mode=0660
+  notify:
+  - restart fedmsg-hub
+
 # Here I'm "permanently" hotfixing the fedmsg-hub
 # It needs to load the forward-compat sqlalchemy0.7 package from the get-go.
 - name: copy over patched fedmsg-hub

roles/notifs/backend/templates/alembic.ini

@@ -0,0 +1,53 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# max length of characters to apply to the
+# "slug" field
+#truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+sqlalchemy.url = postgresql://{{notifs_db_user}}:{{notifs_db_password}}@db-notifs/notifications
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S