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@title Configuring Backups
@group config
Advice for backing up Phabricator.
= Overview =
Phabricator does not currently have a comprehensive backup system, but creating
backups is not particularly difficult and Phabricator does have a few basic
tools which can help you set up a reasonable process. In particular, the things
which needs to be backed up are:
- the MySQL databases;
- uploaded files; and
- your Phabricator configuration files.
This document discusses approaches for backing up this data.
= Backup: MySQL Databases =
Most of Phabricator's data is stored in MySQL, and it's the most important thing
to back up. You can run `bin/storage dump` to get a dump of all the MySQL
databases. This is a convenience script which just runs a normal `mysqldump`
of every database Phabricator owns.
Since most of this data is compressible, it may be helpful to run it through
gzip prior to storage. For example:
phabricator/ $ ./bin/storage dump | gzip > backup.sql.gz
Then store the backup somewhere safe, like in a box buried under an old tree
stump. No one will ever think to look for it there.
= Restore: MySQL =
To restore a MySQL dump, just pipe it to `mysql` on a clean host. (You may need
to uncompress it first, if you compressed it prior to storage.)
$ gunzip -c backup.sql.gz | mysql
= Backup: Uploaded Files =
Uploaded files may be stored in several different locations. The backup
procedure depends on where files are stored:
**Default / MySQL**: Under the default configuration, uploaded files are stored
in MySQL, so the MySQL backup will include all files. In this case, you don't
need to do any additional work.
**Amazon S3**: If you use Amazon S3, redundancy and backups are built in to the
service. This is probably sufficient for most installs. If you trust Amazon with
your data //except not really//, you can backup your S3 bucket outside of
Phabricator.
**Local Disk**: If you use the local disk storage engine, you'll need to back up
files manually. You can do this by creating a copy of the root directory where
you told Phabricator to put files (the `storage.local-disk.path` configuration
setting).
For more information about configuring how files are stored, see
@{article:Configuring File Storage}.
= Restore: Uploaded Files =
To restore a backup of local disk storage, just copy the backup into place.
= Backup: Configuration Files =
You should also backup your configuration files, and any scripts you use to
deploy or administrate Phabricator (like a customized upgrade script). The best
way to do this is to check them into a private repository somewhere and just use
whatever backup process you already have in place for repositories. Just copying
them somewhere will work fine too, of course.
= Restore: Configuration Files =
To restore configuration files, just copy them into the right locations.
= Security =
MySQL dumps have no builtin encryption and most data in Phabricator is stored in
a raw, accessible form, so giving a user access to backups is a lot like giving
them shell access to the machine Phabricator runs on. In particular, a user who
has the backups can:
- read data that policies do not permit them to see;
- read email addresses and object secret keys; and
- read other users' session and conduit tokens and impersonate them.
Some of this information is durable, so disclosure of even a very old backup may
present a risk. If you restrict access to the Phabricator host or database, you
should also restrict access to the backups.
= Next Steps =
Continue by:
- returning to the @{article:Configuration Guide}.

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