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Alex Vandiver a1151aef8b create-database: Hide harmless "non-existant database" warnings. 
During installation on a new host, `create-database` attempts to
verify that there isn't a bunch of data already in the database which
is it about to drop and recreate.  In the most common case, this
statement emits a scary-looking warning, since the database does not
exist yet:

```
+ /home/zulip/deployments/current/scripts/setup/create-database
+ POSTGRES_USER=postgres
++ crudini --get /etc/zulip/zulip.conf postgresql database_name
++ echo zulip
+ DATABASE_NAME=zulip
++ crudini --get /etc/zulip/zulip.conf postgresql database_user
++ echo zulip
+ DATABASE_USER=zulip
++ cd /
++ su postgres -c 'psql -v ON_ERROR_STOP=1 -Atc '\''SELECT COUNT(*) FROM zulip.zerver_message;'\'' zulip'
psql: error: connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: FATAL:  database "zulip" does not exist
```

Because we are attempting to gracefully handle the case where the
database does not exist yet, we also continue (and drop the database)
in other, less expected cases -- for instance, if database contains a
schema we do not expect.

Explicitly check for the database existence first, and once we verify
that, allow any further failures in the `SELECT COUNT(*)` to abort
`create-database`.  This serves the dual purpose of hiding the "FATAL"
error for the common case when the database does not exist, as well as
preventing dropping the database if anything else goes awry.
 		2023-01-05 11:39:23 -08:00
..
lib ruff: Enable new lints DTZ, ISC, PIE, PLW, Q, S, SIM. 2023-01-04 16:25:07 -08:00
nagios ruff: Fix SIM118 Use `key in dict` instead of `key in dict.keys()`. 2023-01-04 16:25:07 -08:00
setup create-database: Hide harmless "non-existant database" warnings. 2023-01-05 11:39:23 -08:00
README.md docs: Apply bullet style changes from Prettier. 2021-09-08 12:06:24 -07:00
__init__.py
…
get-django-setting python: Normalize quotes with Black. 2021-02-12 13:11:19 -08:00
log-search python: Apply changes from pyupgrade. 2022-07-20 22:33:28 -07:00
purge-old-deployments zulip_tools: Rename may_be_perform_purging to maybe_perform_purging. 2022-01-12 13:21:35 -08:00
refresh-sharding-and-restart sharding: Configure Tornado sharding with nginx map. 2022-09-15 16:07:50 -07:00
restart-server restart-server: Default to running config and database checks. 2022-10-14 13:10:46 -07:00
start-server scripts: Add a start-server as well. 2021-04-21 10:24:08 -07:00
stop-server stop-server: Only stop services if they exist and are running. 2022-05-22 14:52:38 -07:00
upgrade-zulip upgrade: Modify upgrade scripts to handle failure. 2021-06-23 08:42:20 -07:00
upgrade-zulip-from-git upgrade: Modify upgrade scripts to handle failure. 2021-06-23 08:42:20 -07:00
zulip-puppet-apply Revert "zulip-puppet-apply: Work around broken Puppet on Ubuntu 22.04." 2022-09-22 15:18:15 -07:00

README.md

This directory contains scripts that:

  • Generally do not require access to Django or the database (those are "management commands"), and thus are suitable to run operationally.

  • Are useful for managing a production deployment of Zulip (many are also used in a Zulip development environment, though development-only scripts live in tools/).

For more details, see https://zulip.readthedocs.io/en/latest/overview/directory-structure.html.