This is multi-stage build which first builds tsearch-extras with the
current version of postgres and then configs postgres for zulip. The
zulip config installs the hunspell dictionaries, stop words file,
tsearch-extras, and creates the initial database.
**Testing Plan:**
1) `docker-compose up` the existing config.
2) Build the new image
3) Edit docker-compose.yml to use the new image id
4) `docker-compose up` and verify full text search is still working.
We may not necessarily be running out of /root/zulip or any particular path,
but the point this comment was really trying to make in the first place stands.
Make it more clearly and still-accurately.
This fixes an annoying issue where one tries to rebuild the database,
and it fails due to there being existing connections.
The one thing that is potentially scary about this implementation is
that it means it's now a lot easier to accidentally drop your
production database by running the wrong script; might be worth adding
a "--force" flag controlling this behavior or something.
Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this
implementation! They did most of the work and testing for this.
This fixes some issues that we've had where commands will fail is
confusing ways after the database is rebuilt because data from before
the database was dropped is still in the memcached cache.
Jason Michalski
Greg Price
Tim Abbott
Michael Cordover
Tim Abbott
Reid Barton
Tim Abbott