borgmatic/README.md

125 lines
3.7 KiB
Markdown
Raw Normal View History

title: Atticmatic
date:
save_as: atticmatic/index.html
2014-11-27 18:29:31 +01:00
## Overview
2014-10-31 06:34:03 +01:00
atticmatic is a simple Python wrapper script for the [Attic backup
software](https://attic-backup.org/) that initiates a backup, prunes any old
backups according to a retention policy, and validates backups for
consistency. The script supports specifying your settings in a declarative
configuration file rather than having to put them all on the command-line, and
handles common errors.
2014-10-31 06:34:03 +01:00
Here's an example config file:
[location]
# Space-separated list of source directories to backup.
source_directories: /home /etc
# Path to local or remote Attic repository.
repository: user@backupserver:sourcehostname.attic
[retention]
# Retention policy for how many backups to keep in each category.
keep_daily: 7
keep_weekly: 4
keep_monthly: 6
[consistency]
# Consistency checks to run, or "disabled" to prevent checks.
checks: repository archives
Additionally, exclude patterns can be specified in a separate excludes config
file, one pattern per line.
atticmatic is hosted at <https://torsion.org/atticmatic> with [source code
available](https://torsion.org/hg/atticmatic). It's also mirrored on
[GitHub](https://github.com/witten/atticmatic) and
[BitBucket](https://bitbucket.org/dhelfman/atticmatic) for convenience.
2014-11-19 03:32:16 +01:00
2014-10-31 06:34:03 +01:00
2014-11-27 18:29:31 +01:00
## Setup
2014-10-31 06:34:03 +01:00
To get up and running with Attic, follow the [Attic Quick
Start](https://attic-backup.org/quickstart.html) guide to create an Attic
repository on a local or remote host. Note that if you plan to run atticmatic
on a schedule with cron, and you encrypt your attic repository with a
passphrase instead of a key file, you'll need to set the `ATTIC_PASSPHRASE`
environment variable. See [attic's repository encryption
documentation](https://attic-backup.org/quickstart.html#encrypted-repos) for
more info.
If the repository is on a remote host, make sure that your local root user has
key-based ssh access to the desired user account on the remote host.
To install atticmatic, run the following command to download and install it:
2014-10-31 06:34:03 +01:00
sudo pip install --upgrade hg+https://torsion.org/hg/atticmatic
2014-10-31 06:34:03 +01:00
Then copy the following configuration files:
sudo cp sample/atticmatic.cron /etc/cron.d/atticmatic
sudo mkdir /etc/atticmatic/
2014-10-31 06:34:03 +01:00
sudo cp sample/config sample/excludes /etc/atticmatic/
Lastly, modify those files with your desired configuration.
2014-10-31 06:34:03 +01:00
2014-11-27 18:29:31 +01:00
## Usage
2014-10-31 06:34:03 +01:00
You can run atticmatic and start a backup simply by invoking it without
arguments:
atticmatic
This will also prune any old backups as per the configured retention policy,
and check backups for consistency problems due to things like file damage.
By default, the backup will proceed silently except in the case of errors. But
if you'd like to to get additional information about the progress of the
backup as it proceeds, use the verbose option instead:
2014-10-31 06:34:03 +01:00
atticmattic --verbose
If you'd like to see the available command-line arguments, view the help:
atticmattic --help
2014-11-18 03:35:47 +01:00
2014-11-27 18:29:31 +01:00
## Running tests
2014-11-18 06:57:44 +01:00
First install tox, which is used for setting up testing environments:
2014-11-18 06:57:44 +01:00
pip install tox
2014-11-18 06:57:44 +01:00
Then, to actually run tests, run:
2014-11-18 06:57:44 +01:00
tox
2014-11-18 06:57:44 +01:00
## Troubleshooting
### Broken pipe with remote repository
When running atticmatic on a large remote repository, you may receive errors
like the following, particularly while "attic check" is valiating backups for
consistency:
Write failed: Broken pipe
attic: Error: Connection closed by remote host
This error can be caused by an ssh timeout, which you can rectify by adding
the following to the ~/.ssh/config file on the client:
Host *
ServerAliveInterval 120
This should make the client keep the connection alive while validating
backups.
2014-11-27 18:29:31 +01:00
## Feedback
2014-11-18 03:35:47 +01:00
Questions? Comments? Got a patch? Contact <mailto:witten@torsion.org>.