zulip/scripts/setup/README

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Requirements:
* Server running Ubuntu Precise or Debian Wheezy
* At least 2 CPUs for production use
* At least 4GB of RAM for production use
* At least 100GB of free disk for production use
* HTTP(S) access to the public Internet (for some features;
discuss with Zulip Support if this is an issue for you)
* SSL Certificate for the host you're putting this on
(e.g. https://zulip.example.com)
* Zulip deployment key for the host that you're putting this on.
You should have been provided with one by Zulip support.
* Email credentials for the service to send outgoing emails to users
(e.g. missed message notifications, password reminders if you're not
using SSO, etc.).
=======================================================================
How to install Zulip Enterprise:
These instructions should be followed as root.
(1) Install the SSL certificates for your machine to
/etc/ssl/private/zulip-enterprise.key
and
/etc/ssl/certs/zulip-enterprise.combined-chain.crt
(2) download zulip-server.tar.gz, and unpack to it /root/zulip, e.g.
tar -xf zulip-server-1.1.3.tar.gz
mv zulip-server-1.1.3 /root/zulip
(3) run /root/zulip/scripts/setup/install
This may take a while to run, since it will install a large number of
packages via apt.
(4) Configure the Zulip server instance by filling in the settings in
/etc/zulip/settings.py
(5) su zulip -c /home/zulip/deployments/current/scripts/setup/initialize-database
This will report an error if you did not fill in all the mandatory
settings from /etc/zulip/settings.py. Once this completes
successfully, the main installation process will be complete, and if
you are planning on using password authentication, you should be able
to visit the URL for your server and register for an account.
=======================================================================
SSO Authentication:
We integrate with your Single-Sign-On solution. There are a few ways
to do it, but this section documents how to configure Zulip to use
your SSO solution that supports Apache and will set the REMOTE_USER
variable:
(0) Check that /etc/zulip/settings.py has
"zproject.backends.ZulipRemoteUserBackend" as the only enabled value
in the "AUTHENTICATION_BACKENDS" list, and that "SSO_APPEND_DOMAIN" is
correct set depending on whether your SSO system uses email addresses
or just usernames in REMOTE_USER.
Make sure that you've restarted the Zulip server since making this
configuration change.
(1) Edit /etc/zulip/zulip.conf and change the puppet_classes line to read:
puppet_classes = zulip::enterprise, zulip::apache_sso
(2) As root, run
/home/zulip/deployments/current/scripts/zulip-puppet-apply
to install our SSO integration.
(3) To configure our SSO integration, edit
/etc/apache2/sites-available/zulip-sso.example and fill in the
configuration required for your SSO service to set REMOTE_USER and
place your completed configuration file at
/etc/apache2/sites-available/zulip-sso
(4) Run
a2ensite zulip-sso
To enable the Apache integration site.
Now you should be able to visit https://zulip.yourdomain.net/ and
login via the SSO solution.
=======================================================================
Maintaining Zulip Enterprise:
* To upgrade to a new version, download the appropriate tarball from
https://zulip.com/enterprise/download, and then run
/home/zulip/deployments/current/scripts/upgrade-zulip <tarball>
The upgrade process will result in some brief downtime for the
service, which should be under 30 seconds unless there is an
expensive transition involved, which would be mentioned in the
release notes for the upgrade. So we recommend doing upgrades at
off hours.
* To update your settings, simply edit /etc/zulip/settings.py and then
run /home/zulip/deployments/current/scripts/restart-server to
restart the server
* You are responsible for running "apt-get upgrade" on your system on
a regular basis to ensure that it is up to date with the latest
security patches.
* To use the Zulip API with Zulip Enterprise, you will need to use the
API endpoint of e.g. "https://zulip.yourdomain.net/api". Our Python
API examples support this via the
"--site=https://zulip.yourdomain.net" argument. The API bindings
support it via putting "site=https://zulip.yourdomain.net" in your
.zuliprc.
* Contact support@zulip.com for our Nagios plugin for monitoring the
service's health as you move it into production.
* As a measure to mitigate the impact of potential memory leaks, the
service automatically restarts itself once a week Sunday early
morning. See /etc/cron.d/restart-zulip for the precise
configuration; if you'd like to change this setting, please be in
touch with Zulip support on how to properly disable it (if you just
delete the file, it will be re-added on the next Zulip upgrade).