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@@ -1,263 +0,0 @@ - - |\_ - B A C K U P N I N J A /()/ - `\| - - a silent flower blossom death strike to lost data. - -Backupninja allows you to coordinate system backup by dropping a few -simple configuration files into /etc/backup.d/. Most programs you -might use for making backups don't have their own configuration file -format. Backupninja provides a centralized way to configure and -coordinate many different backup utilities. - -Features: - - easy to read ini style configuration files. - - you can drop in scripts to handle new types of backups. - - backup actions can be scheduled - - you can choose when status report emails are mailed to you - (always, on warning, on error, never). - - console-based wizard (ninjahelper) makes it easy to create - backup action configuration files. - - passwords are never sent via the command line to helper programs. - - works with Linux-Vservers (http://linux-vserver.org/) - -Backup types: - - secure, remote, incremental filesytem backup (via rdiff-backup). - incremental data is compressed. permissions are retained even - with an unpriviledged backup user. - - backup of mysql databases (via mysqlhotcopy and mysqldump). - - backup of ldap databases (via slapcat and ldapsearch). - - basic system and hardware info - - encrypted remote backups (via duplicity). - - backup of subversion repositories. - -The following options are available: --h, --help This usage message --d, --debug Run in debug mode, where all log messages are - output to the current shell. --f, --conffile FILE Use FILE for the main configuration instead - of /etc/backupninja.conf --t, --test Test run mode. This will test if the backup could run, without actually - preforming any backups. For example, it will attempt to authenticate - or test that ssh keys are set correctly. --n, --now Perform actions now, instead of when they might be scheduled. - No output will be created unless also run with -d. ---run FILE Runs the specified action FILE (e.g. one of the /etc/backup.d/ files). - Also puts backupninja in debug mode. - -CONFIGURATION FILES -=================== - -The general configuration file is /etc/backupninja.conf. In this file -you can set the log level and change the default directory locations. -You can force a different general configuration file with "backupninja --f /path/to/conf". - -To preform the actual backup, backupninja processes each configuration -file in /etc/backup.d according to the file's suffix: - - .sh -- run this file as a shell script. - .rdiff -- filesystem backup (using rdiff-backup) - .dup -- filesystem backup (using duplicity) - .mysql -- backup mysql databases - .ldap -- backup ldap databases - .pgsql -- backup PostgreSQL databases - .sys -- general hardware, partition, and system reports. - .svn -- backup subversion repositories - .maildir -- incrementally backup maildirs (very specialized) - -Support for additional configuration types can be added by dropping -bash scripts with the name of the suffix into /usr/share/backupninja. - -The configuration files are processed in alphabetical order. However, -it is suggested that you name the config files in "sysvinit style." - -For example: - 00-disabled.ldap - 10-runthisfirst.sh - 20-runthisnext.mysql - 90-runthislast.rdiff - -Typically, you will put a '.rdiff' config file last, so that any -database dumps you make are included in the filesystem backup. -Configurations files with names beginning with 0 (zero) or ending with -.disabled (preferred method) are skipped. - -Unless otherwise specified, the config file format is "ini style." - -For example: - - # this is a comment - - [fishes] - fish = red - fish = blue - - [fruit] - apple = yes - pear = no thanks \ - i will not have a pear. - - -SCHEDULING -========== - -By default, each configuration file is processed everyday at 01:00 (1 -AM). This can be changed by specifying the 'when' option in a config -file. - -For example: - - when = sundays at 02:00 - when = 30th at 22 - when = 30 at 22:00 - when = everyday at 01 <-- the default - when = Tuesday at 05:00 - -A configuration file will be processed at the time(s) specified by the -"when" option. If multiple "when" options are present, then they all -apply. If two configurations files are scheduled to run in the same -hour, then we fall back on the alphabetical ordering specified above. -If two configurations files are scheduled close to one another in -time, it is possible to have multiple copies of backupninja running if -the first instance is not finished before the next one starts. - -Make sure that you put the "when" option before any sections in your -configuration file. - -These values for 'when' are equivalent: - - when = tuesday at 05:30 - when = TUESDAYS at 05 - -These values for 'when' are invalid: - - when = tuesday at 2am - when = tuesday at 2 - when = tues at 02 - - -REAL WORLD USAGE -================ - -Backupninja can be used to implement whatever backup strategy you -choose. It is intended, however, to be used like so: - -(1) First, databases are safely copied or exported to /var/backups. - Typically, you cannot make a file backup of a database while it - is in use, hence the need to use special tools to make a safe copy - or export into /var/backups. - -(2) Then, vital parts of the file system, including /var/backups, are - nightly pushed to a remote, off-site, hard disk (using - rdiff-backup). The local user is root, but the remote user is not - priviledged. Hopefully, the remote filesystem is encrypted. - -There are many different backup strategies out there, including "pull -style", magnetic tape, rsync + hard links, etc. We believe that the -strategy outlined above is the way to go because: (1) hard disks are -very cheap these days, (2) pull style backups are no good, because then -the backup server must have root on the production server, and (3) -rdiff-backup is more space efficient and featureful than using rsync + -hard links. - - -SSH KEYS -======== - -In order for rdiff-backup to sync files over ssh unattended, you must -create ssh keys on the source server and copy the public key to the -remote user's authorized keys file. For example: - - root@srchost# ssh-keygen -t dsa - root@srchost# ssh-copy-id -i /root/.ssh/id_dsa.pub backup@desthost - -Now, you should be able to ssh from user 'root' on srchost to -user 'backup' on desthost without specifying a password. - -Note: when prompted for a password by ssh-keygen, just leave it -blank by hitting return. - -The included helper program "ninjahelper" will walk you through creating -an rdiff-backup configuration, and will set up the ssh keys for you. - -INSTALLATION -============ - -Requirements: - apt-get install bash gawk - -Recommended: - apt-get install rdiff-backup gzip hwinfo - -Files: - /usr/sbin/backupninja -- main script - /etc/cron.d/backupninja -- runs main script nightly - /etc/logrotate.d/backupninja -- rotates backupninja.log - /etc/backup.d/ -- directory for configuration files - /etc/backupninja.conf -- general options - /usr/share/backupninja -- handler scripts which do the actual work - -Installation: - There is no install script, but you just need to move files to the - correct locations. All files should be owned by root. - - # tar xvzf backupninja.tar.gz - # cd backupninja - # mv backupninja /usr/sbin/backupninja - # mv ninjahelper /usr/sbin/ninjahelper - # mv etc/logrotate.d/backupninja /etc/logrotate.d/backupninja - # mv etc/cron.d/backupninja /etc/cron.d/backupninja - # mkdir /etc/backup.d/ - # mv etc/backupninja.conf /etc/backupninja.conf - # mv handlers /usr/share/backupninja - - -VSERVERS -======== - -If you are using Linux-Vservers (http://linux-vserver.org/) there are some -special capabilities that different handlers have to make vserver -backups easier. - -Set the variable "vservers" to be "yes" in /etc/backupninja.conf and see the -example configuration files for each handler to configure the vserver specific -variables. - -Additional vserver variables that can be configured in /etc/backupninja.conf, -but they probably don't need to be changed: - -VSERVERINFO (default: /usr/sbin/vserver-info) -VSERVER (default: /usr/sbin/vserver) -VROOTDIR (default: `$VSERVERINFO info SYSINFO |grep vserver-Rootdir | awk '{print $2}'`) - -NINJAHELPER -=========== - -Ninjahelper is an additional script which will walk you through the process of -configuring backupninja. Ninjahelper has a menu driven curses based interface -(using dialog). - -To add an additional 'wizard' to ninjahelper, follow these steps: - -(1) to add a helper for the handler "blue", create the file - blue.helper in the directory where the handlers live. - (ie /usr/share/backupninja). - -(2) next, you need to add your helper to the global HELPERS variable - and define the main function for your helper (the function name - is always <helper>_wizard). for example, blue.helper: - HELPERS="$HELPERS blue:description_of_this_helper" - blue_wizard() { - ... do work here ... - } - -(3) look at the existing helpers to see how they are written. Try to re-use - functions, such as the dialog functions that are defined in easydialog.sh, - or the vserver functions defined in lib/vserver. - -(4) test, re-test, and test again. Try to break the helper by going backwards, - try to think like someone who has no idea how to configure your handler - would think, try to make your helper as simple as possible. Walk like a cat, - become your shadow, don't let your senses betray you. |