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Update docs

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Alexander Neumann 2018-04-28 16:19:16 +02:00
parent 6b12b92339
commit c3cc5d7cee
15 changed files with 255 additions and 184 deletions

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@ -14,3 +14,6 @@
Introduction Introduction
############ ############
Restic is a fast and secure backup program. In the following sections, we will
present typical workflows, starting with installing, preparing a new
repository, and making the first backup.

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@ -145,9 +145,17 @@ Admin rights.
Docker Container Docker Container
**************** ****************
We're maintaining a bare docker container with just a few files and the restic
binary, you can get it with `docker pull` like this:
.. code-block:: console
$ docker pull restic/restic
.. note:: .. note::
| A docker container is available as a contribution (Thank you!). | Another docker container which offers more configuration options is
| You can find it at https://github.com/Lobaro/restic-backup-docker | available as a contribution (Thank you!). You can find it at
| https://github.com/Lobaro/restic-backup-docker
From Source From Source
*********** ***********
@ -173,7 +181,7 @@ You can easily cross-compile restic for all supported platforms, just
supply the target OS and platform via the command-line options like this supply the target OS and platform via the command-line options like this
(for Windows and FreeBSD respectively): (for Windows and FreeBSD respectively):
:: .. code-block:: console
$ go run build.go --goos windows --goarch amd64 $ go run build.go --goos windows --goarch amd64

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@ -15,20 +15,24 @@ Preparing a new repository
########################## ##########################
The place where your backups will be saved at is called a "repository". The place where your backups will be saved at is called a "repository".
This chapter explains how to create ("init") such a repository. This chapter explains how to create ("init") such a repository. The repository
can be stored locally, or on some remote server or service. We'll first cover
using a local repository, the remaining sections of this chapter cover all the
other options. You can skip to the next chapter once you've read the relevant
section here.
Local Local
***** *****
In order to create a repository at ``/tmp/backup``, run the following In order to create a repository at ``/srv/restic-repo``, run the following
command and enter the same password twice: command and enter the same password twice:
.. code-block:: console .. code-block:: console
$ restic init --repo /tmp/backup $ restic init --repo /srv/restic-repo
enter password for new backend: enter password for new backend:
enter password again: enter password again:
created restic backend 085b3c76b9 at /tmp/backup created restic backend 085b3c76b9 at /srv/restic-repo
Please note that knowledge of your password is required to access the repository. Please note that knowledge of your password is required to access the repository.
Losing your password means that your data is irrecoverably lost. Losing your password means that your data is irrecoverably lost.
@ -55,10 +59,10 @@ simply be achieved by changing the URL scheme in the ``init`` command:
.. code-block:: console .. code-block:: console
$ restic -r sftp:user@host:/tmp/backup init $ restic -r sftp:user@host:/srv/restic-repo init
enter password for new backend: enter password for new backend:
enter password again: enter password again:
created restic backend f1c6108821 at sftp:user@host:/tmp/backup created restic backend f1c6108821 at sftp:user@host:/srv/restic-repo
Please note that knowledge of your password is required to access the repository. Please note that knowledge of your password is required to access the repository.
Losing your password means that your data is irrecoverably lost. Losing your password means that your data is irrecoverably lost.
@ -87,7 +91,7 @@ specify the user name in this case):
:: ::
$ restic -r sftp:foo:/tmp/backup init $ restic -r sftp:foo:/srv/restic-repo init
You can also add an entry with a special host name which does not exist, You can also add an entry with a special host name which does not exist,
just for use with restic, and use the ``Hostname`` option to set the just for use with restic, and use the ``Hostname`` option to set the
@ -104,7 +108,7 @@ Then use it in the backend specification:
:: ::
$ restic -r sftp:restic-backup-host:/tmp/backup init $ restic -r sftp:restic-backup-host:/srv/restic-repo init
Last, if you'd like to use an entirely different program to create the Last, if you'd like to use an entirely different program to create the
SFTP connection, you can specify the command to be run with the option SFTP connection, you can specify the command to be run with the option
@ -509,5 +513,5 @@ On MSYS2, you can install ``winpty`` as follows:
.. code-block:: console .. code-block:: console
$ pacman -S winpty $ pacman -S winpty
$ winpty restic -r /tmp/backup init $ winpty restic -r /srv/restic-repo init

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@ -21,43 +21,88 @@ again:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup backup ~/work $ restic -r /srv/restic-repo --verbose backup ~/work
open repository
enter password for repository: enter password for repository:
scan [/home/user/work] password is correct
scanned 764 directories, 1816 files in 0:00 lock repository
[0:29] 100.00% 54.732 MiB/s 1.582 GiB / 1.582 GiB 2580 / 2580 items 0 errors ETA 0:00 load index files
duration: 0:29, 54.47MiB/s start scan
start backup
scan finished in 1.837s
processed 1.720 GiB in 0:12
Files: 5307 new, 0 changed, 0 unmodified
Dirs: 1867 new, 0 changed, 0 unmodified
Added: 1.700 GiB
snapshot 40dc1520 saved snapshot 40dc1520 saved
As you can see, restic created a backup of the directory and was pretty As you can see, restic created a backup of the directory and was pretty
fast! The specific snapshot just created is identified by a sequence of fast! The specific snapshot just created is identified by a sequence of
hexadecimal characters, ``40dc1520`` in this case. hexadecimal characters, ``40dc1520`` in this case.
If you don't pass the ``--verbose`` option, restic will print less data (but
you'll still get a nice live status display).
If you run the command again, restic will create another snapshot of If you run the command again, restic will create another snapshot of
your data, but this time it's even faster. This is de-duplication at your data, but this time it's even faster. This is de-duplication at
work! work!
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup backup ~/work $ restic -r /srv/restic-repo backup --verbose ~/work
open repository
enter password for repository: enter password for repository:
using parent snapshot 40dc1520aa6a07b7b3ae561786770a01951245d2367241e71e9485f18ae8228c password is correct
scan [/home/user/work] lock repository
scanned 764 directories, 1816 files in 0:00 load index files
[0:00] 100.00% 0B/s 1.582 GiB / 1.582 GiB 2580 / 2580 items 0 errors ETA 0:00 using parent snapshot d875ae93
duration: 0:00, 6572.38MiB/s start scan
start backup
scan finished in 1.881s
processed 1.720 GiB in 0:03
Files: 0 new, 0 changed, 5307 unmodified
Dirs: 0 new, 0 changed, 1867 unmodified
Added: 0 B
snapshot 79766175 saved snapshot 79766175 saved
You can even backup individual files in the same repository. You can even backup individual files in the same repository (not passing
``--verbose`` means less output):
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup backup ~/work.txt $ restic -r /srv/restic-repo backup ~/work.txt
scan [/home/user/work.txt] enter password for repository:
scanned 0 directories, 1 files in 0:00 password is correct
[0:00] 100.00% 0B/s 220B / 220B 1 / 1 items 0 errors ETA 0:00 snapshot 249d0210 saved
duration: 0:00, 0.03MiB/s
snapshot 31f7bd63 saved If you're interested in what restic does, pass ``--verbose`` twice (or
``--verbose 2``) to display detailed information about each file and directory
restic encounters:
.. code-block:: console
$ echo 'more data foo bar' >> ~/work.txt
$ restic -r /srv/restic-repo backup --verbose --verbose ~/work.txt
open repository
enter password for repository:
password is correct
lock repository
load index files
using parent snapshot f3f8d56b
start scan
start backup
scan finished in 2.115s
modified /home/user/work.txt, saved in 0.007s (22 B added)
modified /home/user/, saved in 0.008s (0 B added, 378 B metadata)
modified /home/, saved in 0.009s (0 B added, 375 B metadata)
processed 22 B in 0:02
Files: 0 new, 1 changed, 0 unmodified
Dirs: 0 new, 2 changed, 0 unmodified
Data Blobs: 1 new
Tree Blobs: 3 new
Added: 1.116 KiB
snapshot 8dc503fc saved
In fact several hosts may use the same repository to backup directories In fact several hosts may use the same repository to backup directories
and files leading to a greater de-duplication. and files leading to a greater de-duplication.
@ -87,33 +132,53 @@ the exclude options are:
- ``--exclude-if-present`` Specified one or more times to exclude a folders content - ``--exclude-if-present`` Specified one or more times to exclude a folders content
if it contains a given file (optionally having a given header) if it contains a given file (optionally having a given header)
Basic example: Let's say we have a file called ``excludes.txt`` with the following content:
.. code-block:: console ::
$ cat exclude
# exclude go-files # exclude go-files
*.go *.go
# exclude foo/x/y/z/bar foo/x/bar foo/bar # exclude foo/x/y/z/bar foo/x/bar foo/bar
foo/**/bar foo/**/bar
$ restic -r /tmp/backup backup ~/work --exclude="*.c" --exclude-file=exclude
It can be used like this:
.. code-block:: console
$ restic -r /srv/restic-repo backup ~/work --exclude="*.c" --exclude-file=excludes.txt
This instruct restic to exclude files matching the following criteria:
* All files matching ``*.go`` (second line in ``excludes.txt``)
* All files and sub-directories named ``bar`` which reside somewhere below a directory called ``foo`` (fourth line in ``excludes.txt``)
* All files matching ``*.c`` (parameter ``--exclude``)
Please see ``restic help backup`` for more specific information about each exclude option. Please see ``restic help backup`` for more specific information about each exclude option.
Patterns use `filepath.Glob <https://golang.org/pkg/path/filepath/#Glob>`__ internally, Patterns use `filepath.Glob <https://golang.org/pkg/path/filepath/#Glob>`__ internally,
see `filepath.Match <https://golang.org/pkg/path/filepath/#Match>`__ for syntax. see `filepath.Match <https://golang.org/pkg/path/filepath/#Match>`__ for
Patterns are tested against the full path of a file/dir to be saved, not only syntax. Patterns are tested against the full path of a file/dir to be saved,
against the relative path below the argument given to restic backup. even if restic is passed a relative path to save. Environment-variables in
Patterns need to match on complete path components. (``foo`` matches exclude-files are expanded with `os.ExpandEnv <https://golang.org/pkg/os/#ExpandEnv>`__.
``/dir1/foo/dir2/file`` and ``/dir/foo`` but does not match ``/dir/foobar`` or
``barfoo``.) A trailing ``/`` is ignored. A leading ``/`` anchors the Patterns need to match on complete path components. For example, the pattern ``foo``:
pattern at the root directory. (``/bin`` matches ``/bin/bash`` but does not
match ``/usr/bin/restic``.) Regular wildcards cannot be used to match over the * matches ``/dir1/foo/dir2/file`` and ``/dir/foo``
directory separator ``/``. (``b*ash`` matches ``/bin/bash`` but does not match * does not match ``/dir/foobar`` or ``barfoo``
``/bin/ash``.) However ``**`` matches arbitrary subdirectories. (``foo/**/bar``
matches ``/dir1/foo/dir2/bar/file``, ``/foo/bar/file`` and ``/tmp/foo/bar``.) A trailing ``/`` is ignored, a leading ``/`` anchors the
Environment-variables in exclude-files are expanded with pattern at the root directory. This means, ``/bin`` matches ``/bin/bash`` but
`os.ExpandEnv <https://golang.org/pkg/os/#ExpandEnv>`__. does not match ``/usr/bin/restic``.
Regular wildcards cannot be used to match over the
directory separator ``/``. For example: ``b*ash`` matches ``/bin/bash`` but does not match
``/bin/ash``.
For this, the special wildcard ``**`` can be used to match arbitrary
sub-directories: The pattern ``foo/**/bar`` matches:
* ``/dir1/foo/dir2/bar/file``
* ``/foo/bar/file``
* ``/tmp/foo/bar``
By specifying the option ``--one-file-system`` you can instruct restic By specifying the option ``--one-file-system`` you can instruct restic
to only backup files from the file systems the initially specified files to only backup files from the file systems the initially specified files
@ -122,15 +187,15 @@ backup ``/sys`` or ``/dev`` on a Linux system:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup backup --one-file-system / $ restic -r /srv/restic-repo backup --one-file-system /
By using the ``--files-from`` option you can read the files you want to By using the ``--files-from`` option you can read the files you want to
backup from a file. This is especially useful if a lot of files have to backup from a file. This is especially useful if a lot of files have to
be backed up that are not in the same folder or are maybe pre-filtered be backed up that are not in the same folder or are maybe pre-filtered
by other software. by other software.
For example maybe you want to backup files that have a certain filename For example maybe you want to backup files which have a name that matches a
in them: certain pattern:
.. code-block:: console .. code-block:: console
@ -140,14 +205,14 @@ You can then use restic to backup the filtered files:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup backup --files-from /tmp/files_to_backup $ restic -r /srv/restic-repo backup --files-from /tmp/files_to_backup
Incidentally you can also combine ``--files-from`` with the normal files Incidentally you can also combine ``--files-from`` with the normal files
args: args:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup backup --files-from /tmp/files_to_backup /tmp/some_additional_file $ restic -r /srv/restic-repo backup --files-from /tmp/files_to_backup /tmp/some_additional_file
Paths in the listing file can be absolute or relative. Paths in the listing file can be absolute or relative.
@ -159,7 +224,7 @@ and displays a small statistic, just pass the command two snapshot IDs:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup diff 5845b002 2ab627a6 $ restic -r /srv/restic-repo diff 5845b002 2ab627a6
password is correct password is correct
comparing snapshot ea657ce5 to 2ab627a6: comparing snapshot ea657ce5 to 2ab627a6:
@ -206,7 +271,7 @@ this mode of operation, just supply the option ``--stdin`` to the
.. code-block:: console .. code-block:: console
$ mysqldump [...] | restic -r /tmp/backup backup --stdin $ mysqldump [...] | restic -r /srv/restic-repo backup --stdin
This creates a new snapshot of the output of ``mysqldump``. You can then This creates a new snapshot of the output of ``mysqldump``. You can then
use e.g. the fuse mounting option (see below) to mount the repository use e.g. the fuse mounting option (see below) to mount the repository
@ -217,7 +282,7 @@ specified with ``--stdin-filename``, e.g. like this:
.. code-block:: console .. code-block:: console
$ mysqldump [...] | restic -r /tmp/backup backup --stdin --stdin-filename production.sql $ mysqldump [...] | restic -r /srv/restic-repo backup --stdin --stdin-filename production.sql
Tags for backup Tags for backup
*************** ***************
@ -227,7 +292,7 @@ information. Just specify the tags for a snapshot one by one with ``--tag``:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup backup --tag projectX --tag foo --tag bar ~/work $ restic -r /srv/restic-repo backup --tag projectX --tag foo --tag bar ~/work
[...] [...]
The tags can later be used to keep (or forget) snapshots with the ``forget`` The tags can later be used to keep (or forget) snapshots with the ``forget``

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@ -22,7 +22,7 @@ Now, you can list all the snapshots stored in the repository:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup snapshots $ restic -r /srv/restic-repo snapshots
enter password for repository: enter password for repository:
ID Date Host Tags Directory ID Date Host Tags Directory
---------------------------------------------------------------------- ----------------------------------------------------------------------
@ -36,7 +36,7 @@ You can filter the listing by directory path:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup snapshots --path="/srv" $ restic -r /srv/restic-repo snapshots --path="/srv"
enter password for repository: enter password for repository:
ID Date Host Tags Directory ID Date Host Tags Directory
---------------------------------------------------------------------- ----------------------------------------------------------------------
@ -47,7 +47,7 @@ Or filter by host:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup snapshots --host luigi $ restic -r /srv/restic-repo snapshots --host luigi
enter password for repository: enter password for repository:
ID Date Host Tags Directory ID Date Host Tags Directory
---------------------------------------------------------------------- ----------------------------------------------------------------------
@ -74,7 +74,7 @@ backup data is consistent and the integrity is unharmed:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup check $ restic -r /srv/restic-repo check
Load indexes Load indexes
ciphertext verification failed ciphertext verification failed
@ -83,7 +83,7 @@ yield the same error:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup restore 79766175 --target /tmp/restore-work $ restic -r /srv/restic-repo restore 79766175 --target /tmp/restore-work
Load indexes Load indexes
ciphertext verification failed ciphertext verification failed
@ -93,7 +93,7 @@ data files:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup check --read-data $ restic -r /srv/restic-repo check --read-data
load indexes load indexes
check all packs check all packs
check snapshots, trees and blobs check snapshots, trees and blobs
@ -107,9 +107,9 @@ commands check all repository data files over 5 separate invocations:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup check --read-data-subset=1/5 $ restic -r /srv/restic-repo check --read-data-subset=1/5
$ restic -r /tmp/backup check --read-data-subset=2/5 $ restic -r /srv/restic-repo check --read-data-subset=2/5
$ restic -r /tmp/backup check --read-data-subset=3/5 $ restic -r /srv/restic-repo check --read-data-subset=3/5
$ restic -r /tmp/backup check --read-data-subset=4/5 $ restic -r /srv/restic-repo check --read-data-subset=4/5
$ restic -r /tmp/backup check --read-data-subset=5/5 $ restic -r /srv/restic-repo check --read-data-subset=5/5

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@ -23,7 +23,7 @@ command to restore the contents of the latest snapshot to
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup restore 79766175 --target /tmp/restore-work $ restic -r /srv/restic-repo restore 79766175 --target /tmp/restore-work
enter password for repository: enter password for repository:
restoring <Snapshot of [/home/user/work] at 2015-05-08 21:40:19.884408621 +0200 CEST> to /tmp/restore-work restoring <Snapshot of [/home/user/work] at 2015-05-08 21:40:19.884408621 +0200 CEST> to /tmp/restore-work
@ -33,7 +33,7 @@ backup for a specific host, path or both.
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup restore latest --target /tmp/restore-art --path "/home/art" --host luigi $ restic -r /srv/restic-repo restore latest --target /tmp/restore-art --path "/home/art" --host luigi
enter password for repository: enter password for repository:
restoring <Snapshot of [/home/art] at 2015-05-08 21:45:17.884408621 +0200 CEST> to /tmp/restore-art restoring <Snapshot of [/home/art] at 2015-05-08 21:45:17.884408621 +0200 CEST> to /tmp/restore-art
@ -42,7 +42,7 @@ files in the snapshot. For example, to restore a single file:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup restore 79766175 --target /tmp/restore-work --include /work/foo $ restic -r /srv/restic-repo restore 79766175 --target /tmp/restore-work --include /work/foo
enter password for repository: enter password for repository:
restoring <Snapshot of [/home/user/work] at 2015-05-08 21:40:19.884408621 +0200 CEST> to /tmp/restore-work restoring <Snapshot of [/home/user/work] at 2015-05-08 21:40:19.884408621 +0200 CEST> to /tmp/restore-work
@ -58,9 +58,9 @@ command to serve the repository with FUSE:
.. code-block:: console .. code-block:: console
$ mkdir /mnt/restic $ mkdir /mnt/restic
$ restic -r /tmp/backup mount /mnt/restic $ restic -r /srv/restic-repo mount /mnt/restic
enter password for repository: enter password for repository:
Now serving /tmp/backup at /mnt/restic Now serving /srv/restic-repo at /mnt/restic
Don't forget to umount after quitting! Don't forget to umount after quitting!
Mounting repositories via FUSE is not possible on OpenBSD, Solaris/illumos Mounting repositories via FUSE is not possible on OpenBSD, Solaris/illumos
@ -80,4 +80,4 @@ the data directly. This can be achieved by using the `dump` command, like this:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup dump latest production.sql | mysql $ restic -r /srv/restic-repo dump latest production.sql | mysql

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@ -35,7 +35,7 @@ repository like this:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup snapshots $ restic -r /srv/restic-repo snapshots
enter password for repository: enter password for repository:
ID Date Host Tags Directory ID Date Host Tags Directory
---------------------------------------------------------------------- ----------------------------------------------------------------------
@ -50,7 +50,7 @@ command and specify the snapshot ID on the command line:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup forget bdbd3439 $ restic -r /srv/restic-repo forget bdbd3439
enter password for repository: enter password for repository:
removed snapshot d3f01f63 removed snapshot d3f01f63
@ -58,7 +58,7 @@ Afterwards this snapshot is removed:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup snapshots $ restic -r /srv/restic-repo snapshots
enter password for repository: enter password for repository:
ID Date Host Tags Directory ID Date Host Tags Directory
---------------------------------------------------------------------- ----------------------------------------------------------------------
@ -73,7 +73,7 @@ command must be run:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup prune $ restic -r /srv/restic-repo prune
enter password for repository: enter password for repository:
counting files in repo counting files in repo

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@ -16,8 +16,8 @@ Encryption
*"The design might not be perfect, but its good. Encryption is a first-class feature, *"The design might not be perfect, but its good. Encryption is a first-class feature,
the implementation looks sane and I guess the deduplication trade-off is worth it. So… Im going to use restic for the implementation looks sane and I guess the deduplication trade-off is worth
my personal backups.*" `Filippo Valsorda`_ it. So… Im going to use restic for my personal backups.*" `Filippo Valsorda`_
.. _Filippo Valsorda: https://blog.filippo.io/restic-cryptography/ .. _Filippo Valsorda: https://blog.filippo.io/restic-cryptography/
@ -31,19 +31,19 @@ per repository. In fact, you can use the ``list``, ``add``, ``remove``, and
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup key list $ restic -r /srv/restic-repo key list
enter password for repository: enter password for repository:
ID User Host Created ID User Host Created
---------------------------------------------------------------------- ----------------------------------------------------------------------
*eb78040b username kasimir 2015-08-12 13:29:57 *eb78040b username kasimir 2015-08-12 13:29:57
$ restic -r /tmp/backup key add $ restic -r /srv/restic-repo key add
enter password for repository: enter password for repository:
enter password for new key: enter password for new key:
enter password again: enter password again:
saved new key as <Key of username@kasimir, created on 2015-08-12 13:35:05.316831933 +0200 CEST> saved new key as <Key of username@kasimir, created on 2015-08-12 13:35:05.316831933 +0200 CEST>
$ restic -r backup key list $ restic -r /srv/restic-repo key list
enter password for repository: enter password for repository:
ID User Host Created ID User Host Created
---------------------------------------------------------------------- ----------------------------------------------------------------------

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@ -26,10 +26,10 @@ times. The command ``snapshots`` may be used for this purpose:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup snapshots $ restic -r /srv/restic-repo snapshots
Fatal: unable to open config file: Stat: stat /tmp/backup/config: no such file or directory Fatal: unable to open config file: Stat: stat /srv/restic-repo/config: no such file or directory
Is there a repository at the following location? Is there a repository at the following location?
/tmp/backup /srv/restic-repo
If a repository does not exist, restic will return a non-zero exit code If a repository does not exist, restic will return a non-zero exit code
and print an error message. Note that restic will also return a non-zero and print an error message. Note that restic will also return a non-zero

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@ -625,14 +625,15 @@ are deleted, the particular snapshot vanished and all snapshots
depending on data that has been added in the snapshot cannot be restored depending on data that has been added in the snapshot cannot be restored
completely. Restic is not designed to detect this attack. completely. Restic is not designed to detect this attack.
******
Local Cache Local Cache
=========== ******
In order to speed up certain operations, restic manages a local cache of data. In order to speed up certain operations, restic manages a local cache of data.
This document describes the data structures for the local cache with version 1. This document describes the data structures for the local cache with version 1.
Versions Versions
-------- ========
The cache directory is selected according to the `XDG base dir specification The cache directory is selected according to the `XDG base dir specification
<http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html>`__. <http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html>`__.
@ -646,12 +647,21 @@ a lower version number is found the cache is recreated with the current
version. If a higher version number is found the cache is ignored and left as version. If a higher version number is found the cache is ignored and left as
is. is.
Snapshots and Indexes Snapshots, Data and Indexes
--------------------- ===========================
Snapshot, Data and Index files are cached in the sub-directories ``snapshots``, Snapshot, Data and Index files are cached in the sub-directories ``snapshots``,
``data`` and ``index``, as read from the repository. ``data`` and ``index``, as read from the repository.
Expiry
======
Whenever a cache directory for a repo is used, that directory's modification
timestamp is updated to the current time. By looking at the modification
timestamps of the repo cache directories it is easy to decide which directories
are old and haven't been used in a long time. Those are probably stale and can
be removed.
************ ************
REST Backend REST Backend
@ -798,24 +808,3 @@ Returns "200 OK" if the blob with the given name and type has been
deleted from the repository, an HTTP error otherwise. deleted from the repository, an HTTP error otherwise.
*****
Talks
*****
The following talks will be or have been given about restic:
- 2016-01-31: Lightning Talk at the Go Devroom at FOSDEM 2016,
Brussels, Belgium
- 2016-01-29: `restic - Backups mal
richtig <https://media.ccc.de/v/c4.openchaos.2016.01.restic>`__:
Public lecture in German at `CCC Cologne
e.V. <https://koeln.ccc.de>`__ in Cologne, Germany
- 2015-08-23: `A Solution to the Backup
Inconvenience <https://programm.froscon.de/2015/events/1515.html>`__:
Lecture at `FROSCON 2015 <https://www.froscon.de>`__ in Bonn, Germany
- 2015-02-01: `Lightning Talk at FOSDEM
2015 <https://www.youtube.com/watch?v=oM-MfeflUZ8&t=11m40s>`__: A
short introduction (with slightly outdated command line)
- 2015-01-27: `Talk about restic at CCC
Aachen <https://videoag.fsmpi.rwth-aachen.de/?view=player&lectureid=4442#content>`__
(in German)

34
doc/110_talks.rst Normal file
View File

@ -0,0 +1,34 @@
..
Normally, there are no heading levels assigned to certain characters as the structure is
determined from the succession of headings. However, this convention is used in Pythons
Style Guide for documenting which you may follow:
# with overline, for parts
* for chapters
= for sections
- for subsections
^ for subsubsections
" for paragraphs
#####
Talks
#####
The following talks will be or have been given about restic:
- 2016-01-31: Lightning Talk at the Go Devroom at FOSDEM 2016,
Brussels, Belgium
- 2016-01-29: `restic - Backups mal
richtig <https://media.ccc.de/v/c4.openchaos.2016.01.restic>`__:
Public lecture in German at `CCC Cologne
e.V. <https://koeln.ccc.de>`__ in Cologne, Germany
- 2015-08-23: `A Solution to the Backup
Inconvenience <https://programm.froscon.de/2015/events/1515.html>`__:
Lecture at `FROSCON 2015 <https://www.froscon.de>`__ in Bonn, Germany
- 2015-02-01: `Lightning Talk at FOSDEM
2015 <https://www.youtube.com/watch?v=oM-MfeflUZ8&t=11m40s>`__: A
short introduction (with slightly outdated command line)
- 2015-01-27: `Talk about restic at CCC
Aachen <https://videoag.fsmpi.rwth-aachen.de/?view=player&lectureid=4442#content>`__
(in German)

View File

@ -1,36 +0,0 @@
Local Cache
===========
In order to speed up certain operations, restic manages a local cache of data.
This document describes the data structures for the local cache with version 1.
Versions
--------
The cache directory is selected according to the `XDG base dir specification
<http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html>`__.
Each repository has its own cache sub-directory, consting of the repository ID
which is chosen at ``init``. All cache directories for different repos are
independent of each other.
The cache dir for a repo contains a file named ``version``, which contains a
single ASCII integer line that stands for the current version of the cache. If
a lower version number is found the cache is recreated with the current
version. If a higher version number is found the cache is ignored and left as
is.
Snapshots, Data and Indexes
---------------------------
Snapshot, Data and Index files are cached in the sub-directories ``snapshots``,
``data`` and ``index``, as read from the repository.
Expiry
------
Whenever a cache directory for a repo is used, that directory's modification
timestamp is updated to the current time. By looking at the modification
timestamps of the repo cache directories it is easy to decide which directories
are old and haven't been used in a long time. Those are probably stale and can
be removed.

View File

@ -35,7 +35,7 @@ master_doc = 'index'
# General information about the project. # General information about the project.
project = 'restic' project = 'restic'
copyright = '2017, restic authors' copyright = '2018, restic authors'
author = 'fd0' author = 'fd0'
# The version info for the project you're documenting, acts as replacement for # The version info for the project you're documenting, acts as replacement for

View File

@ -16,5 +16,6 @@ Restic Documentation
080_examples 080_examples
090_participating 090_participating
100_references 100_references
110_talks
faq faq
manual_rest manual_rest

View File

@ -19,6 +19,7 @@ Usage help is available:
backup Create a new backup of files and/or directories backup Create a new backup of files and/or directories
cat Print internal objects to stdout cat Print internal objects to stdout
check Check the repository for errors check Check the repository for errors
diff Show differences between two snapshots
dump Print a backed-up file to stdout dump Print a backed-up file to stdout
find Find a file or directory find Find a file or directory
forget Remove snapshots from the repository forget Remove snapshots from the repository
@ -41,6 +42,7 @@ Usage help is available:
Flags: Flags:
--cacert stringSlice path to load root certificates from (default: use system certificates) --cacert stringSlice path to load root certificates from (default: use system certificates)
--cache-dir string set the cache directory --cache-dir string set the cache directory
--cleanup-cache auto remove old cache directories
-h, --help help for restic -h, --help help for restic
--json set output mode to JSON for commands that support it --json set output mode to JSON for commands that support it
--limit-download int limits downloads to a maximum rate in KiB/s. (default: unlimited) --limit-download int limits downloads to a maximum rate in KiB/s. (default: unlimited)
@ -52,11 +54,10 @@ Usage help is available:
-q, --quiet do not output comprehensive progress report -q, --quiet do not output comprehensive progress report
-r, --repo string repository to backup to or restore from (default: $RESTIC_REPOSITORY) -r, --repo string repository to backup to or restore from (default: $RESTIC_REPOSITORY)
--tls-client-cert string path to a file containing PEM encoded TLS client certificate and private key --tls-client-cert string path to a file containing PEM encoded TLS client certificate and private key
-v, --verbose count[=-1] be verbose (can be specified multiple times)
Use "restic [command] --help" for more information about a command. Use "restic [command] --help" for more information about a command.
Similar to programs such as ``git``, restic has a number of Similar to programs such as ``git``, restic has a number of
sub-commands. You can see these commands in the listing above. Each sub-commands. You can see these commands in the listing above. Each
sub-command may have own command-line options, and there is a help sub-command may have own command-line options, and there is a help
@ -87,10 +88,12 @@ command:
--stdin-filename string file name to use when reading from stdin (default "stdin") --stdin-filename string file name to use when reading from stdin (default "stdin")
--tag tag add a tag for the new snapshot (can be specified multiple times) --tag tag add a tag for the new snapshot (can be specified multiple times)
--time string time of the backup (ex. '2012-11-01 22:08:41') (default: now) --time string time of the backup (ex. '2012-11-01 22:08:41') (default: now)
--with-atime store the atime for all files and directories
Global Flags: Global Flags:
--cacert stringSlice path to load root certificates from (default: use system certificates) --cacert stringSlice path to load root certificates from (default: use system certificates)
--cache-dir string set the cache directory --cache-dir string set the cache directory
--cleanup-cache auto remove old cache directories
--json set output mode to JSON for commands that support it --json set output mode to JSON for commands that support it
--limit-download int limits downloads to a maximum rate in KiB/s. (default: unlimited) --limit-download int limits downloads to a maximum rate in KiB/s. (default: unlimited)
--limit-upload int limits uploads to a maximum rate in KiB/s. (default: unlimited) --limit-upload int limits uploads to a maximum rate in KiB/s. (default: unlimited)
@ -100,8 +103,8 @@ command:
-p, --password-file string read the repository password from a file (default: $RESTIC_PASSWORD_FILE) -p, --password-file string read the repository password from a file (default: $RESTIC_PASSWORD_FILE)
-q, --quiet do not output comprehensive progress report -q, --quiet do not output comprehensive progress report
-r, --repo string repository to backup to or restore from (default: $RESTIC_REPOSITORY) -r, --repo string repository to backup to or restore from (default: $RESTIC_REPOSITORY)
--tls-client-cert string path to a TLS client certificate --tls-client-cert string path to a file containing PEM encoded TLS client certificate and private key
--tls-client-key string path to a TLS client certificate key -v, --verbose n[=-1] be verbose (specify --verbose multiple times or level n)
Subcommand that support showing progress information such as ``backup``, Subcommand that support showing progress information such as ``backup``,
``check`` and ``prune`` will do so unless the quiet flag ``-q`` or ``check`` and ``prune`` will do so unless the quiet flag ``-q`` or
@ -128,7 +131,7 @@ command does that:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup tag --set NL --set CH 590c8fc8 $ restic -r /srv/restic-repo tag --set NL --set CH 590c8fc8
create exclusive lock for repository create exclusive lock for repository
modified tags on 1 snapshots modified tags on 1 snapshots
@ -141,19 +144,19 @@ So we can add and remove tags incrementally like this:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup tag --tag NL --remove CH $ restic -r /srv/restic-repo tag --tag NL --remove CH
create exclusive lock for repository create exclusive lock for repository
modified tags on 1 snapshots modified tags on 1 snapshots
$ restic -r /tmp/backup tag --tag NL --add UK $ restic -r /srv/restic-repo tag --tag NL --add UK
create exclusive lock for repository create exclusive lock for repository
modified tags on 1 snapshots modified tags on 1 snapshots
$ restic -r /tmp/backup tag --tag NL --remove NL $ restic -r /srv/restic-repo tag --tag NL --remove NL
create exclusive lock for repository create exclusive lock for repository
modified tags on 1 snapshots modified tags on 1 snapshots
$ restic -r /tmp/backup tag --tag NL --add SOMETHING $ restic -r /srv/restic-repo tag --tag NL --add SOMETHING
no snapshots were modified no snapshots were modified
Under the hood Under the hood
@ -170,7 +173,7 @@ locks with the following command:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup list snapshots $ restic -r /srv/restic-repo list snapshots
d369ccc7d126594950bf74f0a348d5d98d9e99f3215082eb69bf02dc9b3e464c d369ccc7d126594950bf74f0a348d5d98d9e99f3215082eb69bf02dc9b3e464c
The ``find`` command searches for a given The ``find`` command searches for a given
@ -191,7 +194,7 @@ objects or their raw content.
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup cat snapshot d369ccc7d126594950bf74f0a348d5d98d9e99f3215082eb69bf02dc9b3e464c $ restic -r /srv/restic-repo cat snapshot d369ccc7d126594950bf74f0a348d5d98d9e99f3215082eb69bf02dc9b3e464c
enter password for repository: enter password for repository:
{ {
"time": "2015-08-12T12:52:44.091448856+02:00", "time": "2015-08-12T12:52:44.091448856+02:00",
@ -242,7 +245,7 @@ lists all snapshots as JSON and uses ``jq`` to pretty-print the result:
.. code-block:: console .. code-block:: console
$ restic -r /tmp/backup snapshots --json | jq . $ restic -r /srv/restic-repo snapshots --json | jq .
[ [
{ {
"time": "2017-03-11T09:57:43.26630619+01:00", "time": "2017-03-11T09:57:43.26630619+01:00",
@ -283,7 +286,7 @@ instead of the default, set the environment variable like this:
.. code-block:: console .. code-block:: console
$ export TMPDIR=/var/tmp/restic-tmp $ export TMPDIR=/var/tmp/restic-tmp
$ restic -r /tmp/backup backup ~/work $ restic -r /srv/restic-repo backup ~/work