swiftbackmeup

An utility that allows one to create items backups and upload them to OpenStack Swift (Object Store).

TODO

• [ ] Add the possibility to encrypt data
• [ ] Add support for Amazon S3

Goal

The goal of swiftbackmeup is to be able to backup items and upload those backups to Swift (OpenStack Object Store).

swiftbackmeup is configuration driven. Every item that needs to be backed up are described in the configuration file.

How to run it

swiftbackmeup has various operation modes:

• backup: Allow one to backup items
• restore: Allow one to restore backups from object store
• purge: Allow one to purge backups from object store

swiftbackmeup is configuration driven. The configuration file is (by order of priority):

1. The one specified on the command line (swiftbackmeup --conf /path/to/conf.yml)
2. The one specified in the environment variable $SWIFTBACKMEUP_CONFIGURATION
3. The /etc/swiftbackmeup.conf

backup

This mode allows a user to backup items listed in the backups array in the configuration file.

--items

This option allows one to limit for which backups item the script will be run. If the backups array has serveral items; ie. mydb_prod, mydb_preprod, mydb_test

swiftbackmeup backup would backup all three of them

swiftbackmeup backup --items mydb_prod would only backup mydb_prod

Note: this command is valid in combination with any other command such as --list and `--list-items

--list

This option allows one to list the remote backups for the items listed in the configuration file. It will by default list all the backups of every items. Items can be limited by using the --items parameter.

#> swiftbackmeup backup --list
+---------------+-----------------------------------------------------+----------------------------+
|      Item     |                     Backup file                     |       Last Modified        |
+---------------+-----------------------------------------------------+----------------------------+
|      db1      |           db1/db1_20160624054028.dump.sql           | 2016-06-24T09:40:29.719150 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624054028.dump.sql | 2016-06-24T09:40:30.377840 |
+---------------+-----------------------------------------------------+----------------------------+

#> swiftbackmeup backup --list --items db1
+---------------+-----------------------------------------------------+----------------------------+
|      Item     |                     Backup file                     |       Last Modified        |
+---------------+-----------------------------------------------------+----------------------------+
|      db1      |           db1/db1_20160624054028.dump.sql           | 2016-06-24T09:40:29.719150 |
+---------------+-----------------------------------------------------+----------------------------+

--list-items

This option allows one to list the items in the backups array listed in the configuration file. Items can be limited by using the --items parameter.

#> swiftbackmeup backup --list-items
+---------------+----------------------+-----------+-----------------+---------------------+-----------------------------+
|      Item     |          Type        |    Host   | Swift Container | Swift Pseudo-Folder |        Subscriptions        |
+---------------+----------------------+-----------+-----------------+---------------------+-----------------------------+
|      db1      |  databases/mariadb   | 127.0.0.1 |      backup     |         db1         | daily, now, monthly, weekly |
| swiftbackmeup | databases/postgresql |   local   |      backup     |    swiftbackmeup    | daily, now, monthly, weekly |
+---------------+----------------------+-----------+-----------------+---------------------+-----------------------------+

#> swiftbackmeup backup --list-items --items db1
+---------------+----------------------+-----------+-----------------+---------------------+-----------------------------+
|      Item     |          Type        |    Host   | Swift Container | Swift Pseudo-Folder |        Subscriptions        |
+---------------+----------------------+-----------+-----------------+---------------------+-----------------------------+
|      db1      |  databases/mariadb   | 127.0.0.1 |      backup     |         db1         | daily, now, monthly, weekly |
+---------------+----------------------+-----------+-----------------+---------------------+-----------------------------+

purge

This mode allows a user to purge items on the remote object store.

The purge logic is based on the mode retention and unit parameters.

modes:
  daily:
    retention: 7
    unit: day
  now:
    retention: 1
    unit: item

backups:
  - name: db1
    database: db1
    subscriptions:
      - daily
      - now

If a user executes swiftbackmeup purge only the last 1 item of the db1 backups on the remote store will be kept, the other will be purged (ie. --mode now is the default)

If a user executs swiftbackmeup purge --mode daily the backups of the item older than 7 days will be purged.

--noop

This option allows one to list the items that would be purged if run without the --noop item.

#> swiftbackmeup backup --list
+---------------+-----------------------------------------------------+----------------------------+
|      Item     |                     Backup file                     |       Last Modified        |
+---------------+-----------------------------------------------------+----------------------------+
|      db1      |           db1/db1_20160624054028.dump.sql           | 2016-06-24T09:40:29.719150 |
|      db1      |           db1/db1_20160624063610.dump.sql           | 2016-06-24T10:36:12.295490 |
|      db1      |           db1/db1_20160624063613.dump.sql           | 2016-06-24T10:36:14.780210 |
|      db1      |           db1/db1_20160624063615.dump.sql           | 2016-06-24T10:36:17.117850 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624054028.dump.sql | 2016-06-24T09:40:30.377840 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063611.dump.sql | 2016-06-24T10:36:13.216240 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063614.dump.sql | 2016-06-24T10:36:15.799500 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063616.dump.sql | 2016-06-24T10:36:17.923470 |
+---------------+-----------------------------------------------------+----------------------------+
#> swiftbackmeup purge --noop --force
+---------------+-----------------------------------------------------+----------------------------+---------------+
|     Item      |                     Backup file                     |       Last Modified        |     Status    |
+---------------+-----------------------------------------------------+----------------------------+---------------+
|      db1      |           db1/db1_20160624054028.dump.sql           | 2016-06-24T09:40:29.719150 | Purged (noop) |
|      db1      |           db1/db1_20160624063610.dump.sql           | 2016-06-24T10:36:12.295490 | Purged (noop) |
|      db1      |           db1/db1_20160624063613.dump.sql           | 2016-06-24T10:36:14.780210 | Purged (noop) |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624054028.dump.sql | 2016-06-24T09:40:30.377840 | Purged (noop) |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063611.dump.sql | 2016-06-24T10:36:13.216240 | Purged (noop) |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063614.dump.sql | 2016-06-24T10:36:15.799500 | Purged (noop) |
+---------------+-----------------------------------------------------+----------------------------+---------------+

--force

This options allows one not to have to answer the security question: "Are you sure you want to purge the backups?"

#> swiftbackmeup backup --list                                                                                                                 
+---------------+-----------------------------------------------------+----------------------------+
|     Item      |                     Backup file                     |       Last Modified        |
+---------------+-----------------------------------------------------+----------------------------+
|      db1      |           db1/db1_20160624054028.dump.sql           | 2016-06-24T09:40:29.719150 |
|      db1      |           db1/db1_20160624063610.dump.sql           | 2016-06-24T10:36:12.295490 |
|      db1      |           db1/db1_20160624063613.dump.sql           | 2016-06-24T10:36:14.780210 |
|      db1      |           db1/db1_20160624063615.dump.sql           | 2016-06-24T10:36:17.117850 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624054028.dump.sql | 2016-06-24T09:40:30.377840 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063611.dump.sql | 2016-06-24T10:36:13.216240 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063614.dump.sql | 2016-06-24T10:36:15.799500 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063616.dump.sql | 2016-06-24T10:36:17.923470 |
+---------------+-----------------------------------------------------+----------------------------+
#> swiftbackmeup purge --force
+---------------+-----------------------------------------------------+----------------------------+--------+
|     Item      |                     Backup file                     |       Last Modified        | Status |
+---------------+-----------------------------------------------------+----------------------------+--------+
|      db1      |           db1/db1_20160624054028.dump.sql           | 2016-06-24T09:40:29.719150 | Purged |
|      db1      |           db1/db1_20160624063610.dump.sql           | 2016-06-24T10:36:12.295490 | Purged |
|      db1      |           db1/db1_20160624063613.dump.sql           | 2016-06-24T10:36:14.780210 | Purged |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624054028.dump.sql | 2016-06-24T09:40:30.377840 | Purged |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063611.dump.sql | 2016-06-24T10:36:13.216240 | Purged |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063614.dump.sql | 2016-06-24T10:36:15.799500 | Purged |
+---------------+-----------------------------------------------------+----------------------------+--------+
#> swiftbackmeup backup --list
+---------------+-----------------------------------------------------+----------------------------+
|     Item      |                     Backup file                     |       Last Modified        |
+---------------+-----------------------------------------------------+----------------------------+
|      db1      |           db1/db1_20160624063615.dump.sql           | 2016-06-24T10:36:17.117850 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063616.dump.sql | 2016-06-24T10:36:17.923470 |
+---------------+-----------------------------------------------------+----------------------------+

restore

This mode allows a user to restore items from the remote object store.

To work, it needs the name of the item to restore and the version from which to restore it from

#> swiftbackmeup backup --list
+---------------+-----------------------------------------------------+----------------------------+
|      Item     |                     Backup file                     |       Last Modified        |
+---------------+-----------------------------------------------------+----------------------------+
|      db1      |           db1/db1_20160624063615.dump.sql           | 2016-06-24T10:36:17.117850 |
| swiftbackmeup | swiftbackmeup/swiftbackmeup_20160624063616.dump.sql | 2016-06-24T10:36:17.923470 |
+---------------+-----------------------------------------------------+----------------------------+
#> swiftbackmeup restore --items db1 --version db1/db1_20160624063615.dump.sql

The previous example will restore the database db1 to the dump remotely stored as db1/db1_20160624063615.dump.sql

--force

This options allows one not to have to answer the security question: "Are you sure you want to restore the backup?"

Modes

Modes are equivalent to tag the backup needs to be subscribed to.

So within the configuration file, backups are 'subscribed' to tags;

backups:
  - database: mydatabasenumberone
    subscriptions:
      - daily
      - monthly
      - now
      - tag1
      - mydatabasenumberone

This means that this backup will run only if swiftbackmeup is run with one of the tags lists in subscriptions

Modes are defined in the configuration file, by default 4 modes come predefined.

• daily: If one wants to backup the database on a daily basis, with a default of 7 day of retention
• weekly: If one wants to backup the database on a weekly basis, with a default of 4 weeks of retention
• monthly: If one wants to backup the database on a monthly basis, with a default of 6 months of retention
• now: If one wants to backup the database at the moment t, with a default of 10 backup having the same name pattern.

Modes understand for now only two parameters:

• retention: Number of unit a backup should be kept, else purged.
• unit: The unit the retention represent. Possible value: day, item. Default day.
• pattern: Pattern that will be used in datetime.format later.

Naming configuration

There are various way the filename of the backup can be specified.

1. The backup is part of a tag with a matching pattern.

By default the name will be the pattern. But one can specify 2 parameters backup_filename_prefix and backup_filename_suffix to actually have a meaningfull name.

So name would be the equivalent of:

'%s%s%s' % (backup_filename_prefix, modes.pattern, backup_filename_suffix)

Example:

backups:
  - name: mydatabase
    database: mydatabase
    subscriptions:
      - daily
    backup_filename_prefix: 'mydatabase_'
    backup_filename_suffix: '.dump.gz'

2. The backup is part of a tag with a matching pattern (or not)

Whether the backup is part of a tag or not, one can override the final backup filename by specifying backup_filename

backups:
  - name: mydatabase
    database: mydatabase
    subscriptions:
      - daily
    backup_filename: 'mydatabase_backup.dump.gz'

Configuration

The below section aims to explain every parameter of the configuration file

Swift Parameters

Filesystem Parameters

Database Parameters

PostgreSQL Specifics

When backuping PostgreSQL databases there are two modes of working:

• database: all: This will make swiftbackmeup rely on the pg_dumpall program. It hence allows access to options like (roles_only, globals_only, etc...)
• database: mydatabase: This will make swiftbackmeup rely on the pg_dump program.

Configuration file example

---
os_username: os_username
os_password:  os_password
os_tenant_name: os_tenant_name
os_auth_url: os_auth_url

store_type: swift
swift_container: backup
swift_pseudo_folder: example

create_container: True
purge_container: False

output_directory: /var/tmp
clean_local_copy: True

modes:
  daily:
    retention: 7
    unit: day
    pattern: "%Y%m%d"
  weekly:
    retention: 28
    unit: day
    pattern: "%Y%m%d-%U"
  monthly:
    retention: 31
    unit: day
    pattern: "%Y%m"
  now:
    retention: 10
    unit: items
    pattern: "%Y%m%d%H%M%S"


backups:

  - name: mytestfile
    type: file
    path: /tmp/file
    backup_filename_prefix: 'mytestfile_'
    backup_filename_suffix: '.bk'
    subscriptions:
      - now
      - daily
      - monthly

  - name: mygitrepo
    type: git
    path: /srv/git/mygitrepo
    branches: all
    backup_filename_prefix: 'mygitrepo_'
    backup_filename_suffix: '.bundle'
    subscriptions:
      - now
      - daily
      - monthly

  - name: swiftbackmeup_mariadb
    type: mariadb
    database: swiftbackmeup
    host: 127.0.0.1
    user: root
    password: passpass
    backup_filename_prefix: 'swiftbackmeup_mariadb_'
    backup_filename_suffix: '.dump.sql'
    swift_pseudo_folder: swiftbackmeup_mariadb
    subscriptions:
      - now
      - daily
      - monthly

  - name: swiftbackmeup_postgresql
    type: postgresql
    database: swiftbackmeup
    backup_filename_prefix: 'swiftbackmeup_postgresql_'
    dump_options: -Z9 -Fc
    backup_filename_suffix: '.dump'
    swift_pseudo_folder: swiftbackmeup_postgresql
    subscriptions:
      - now
      - daily
      - monthly