Fixing the docker container setup (with assets compilation &co)

config/database.yml

@@ -17,7 +17,8 @@ test:
 
 production:
   <<: *default
-  database: postgres
-  username: postgres
-  password:
-  host: db
+  database: <%= ENV['DB_NAME'] || 'mastodon_production' %>
+  username: <%= ENV['DB_USER'] || 'mastodon' %>
+  password: <%= ENV['DB_PASS'] || '' %>
+  host: <%= ENV['DB_HOST'] || 'localhost' %>
+  port: <%= ENV['DB_PORT'] || 5432 %>