Merge remote-tracking branch 'csanad/review--chapter-11-ansible'

Author: hjwp

chapter_09_docker.asciidoc

@@ -1348,6 +1348,9 @@ OK
 
 But we don't actually want to package up our database _inside_ the image, do we?
 We want the database on the server to have totally separate data from the one on our machine.
+// CSANAD: we need to list `src/db.sqlite3` in the .dockerignore file to achieve this.
+//         Otherwise, if the reader did not delete the DB, it would still end up built into
+// the image since the COPY directive copies everything that's inside `src`.
 
 // DAVID: This is an important point which might need a bit more explanation.
 // What would happen if we did?