mirror of https://github.com/zulip/zulip.git
83 lines
2.8 KiB
Markdown
83 lines
2.8 KiB
Markdown
# Production Installation on Existing Ubuntu Server
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Here are some tips for installing the latest release Zulip on a
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production server running Ubuntu. The Zulip installation scripts
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assume that it has carte blanche to overwrite your configuration files
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in /etc, so we recommend against installing it on a server running
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other nginx or django apps.
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But if you do, here are some things you can do that may make it
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possible to retain your existing site. However, this is *NOT*
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recommended, and you may break your server. Make sure you have backups
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and a provisioning script ready to go to wipe and restore your
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existing services if (when) your server goes down.
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These instructions are only for experts. If you're not an experiecned
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Linux sysadmin, you will have a much better experience if you get a
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dedicated VM to install Zulip on instead (or [use zulipchat.com](https://zulipchat.com).
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### Nginx
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Copy your existing nginx configuration to a backup and then merge the
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one created by Zulip into it:
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```shell
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sudo cp /etc/nginx/nginx.conf /etc/nginx.conf.before-zulip-install
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wget -O /tmp/nginx.conf.zulip \
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https://raw.githubusercontent.com/zulip/zulip/master/puppet/zulip/files/nginx/nginx.conf
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sudo meld /etc/nginx/nginx.conf /tmp/nginx.conf.zulip # be sure to merge to the right
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```
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After the zulip installation completes, then you can overwrite (or
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merge) your new nginx.conf with the installed one:
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```shell
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$ sudo meld /tmp/nginx.conf.zulip /etc/nginx/nginx.conf # be sure to merge to the right
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$ sudo service nginx restart
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```
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Zulip's puppet configuration will change the ownership of
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`/var/log/nginx` so that the `zulip` user can access it. Depending on
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your configuration, this may or may not cause problems.
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### Puppet
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If you have a puppet server running on your server, you will get an
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error message about not being able to connect to the client during the
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install process:
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```shell
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puppet-agent[29873]: Could not request certificate: Failed to open TCP connection to puppet:8140
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```
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So you'll need to shutdown any puppet servers.
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```shell
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$ sudo service puppet-agent stop
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$ sudo service puppet stop
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```
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### Postgres
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If you have an existing postgres database, note that Zulip will use
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the default `main` as its database name; make sure you're not using
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that.
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### Memcached, redis, and rabbitmq
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Zulip will, by default, configure these services for its use. The
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configuration we use is pretty basic, but if you're using them for
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something else, you'll want to make sure the configurations are
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compatible.
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### No uninstall process
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We don't provide a convenient way to uninstall a Zulip server.
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## No support, but contributions welcome!
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Most of the limitations are things we'd accept a pull request to fix;
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we welcome contributions to shrink this list of gotchas. Chat with us
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in the [chat.zulip.org community](chat-zulip-org.html) if you're
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interested in helping!
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