Overview

Bash wrapper for restic backups.

Requirements

• https://restic.net/

Usage

root@gridbug:bare# ./bare.sh  -h
usage:  ./bare.sh command reponame

       -a         Run on all repos defined as 'auto'
       -d dir     Restore mode: specify where to put restored files (default: /mnt/restore)
       -h         Show this usage text
       -s num     Limit speed to 'num' Mbps (default: unlimited)
       -x num     Use 'num' simultaneous connections (default: 20)
       -c         Cron mode - log to /var/log/backup.log
       -t         Test mode - dump what would be done then exit.
       -T         Telegram fornatting mode

Valid commands are:
   go ls init repos stats diff forget get check

/root/.backup/config should look like this:
   export B2_ACCOUNT_ID=xxx                  # Backblaze B2 credentials
   export B2_ACCOUNT_KEY=xxx                 # Backblaze B2 credentials
   export B2_APP_ID=xxx                      # Backblaze B2 bucket details
   export B2_APP_KEY=xxx                     # Backblaze B2 bucket auth
   export B2_BUCKET_PREFIX=xxx               # Prefix to append to create unique B2 bucket name

   export RESTIC_KEEPDAYS=31                 # Days to keep restic backups for
   export RESTICOPTS="--one-file-system"     # Extra args to pass to restic

   export PGUSER=postgres                      # Postgresql username

   export DEF_RSYNC_SERVER=xxx                   # Server used for repos with 'rsync' tag
   export DEF_RSYNC_USER=backups                 # Username for rsync server
   export DEF_RSYNC_DIR=/home/backups/backups    # Remote directory on rsync server
   export RSYNC_OPTIONS=-Pavz                # Options to pass to rsync

   export USMB_PREFIX=/DataVolume/shares           # Strip this from repo path to get USMB share name

   export DEF_NFS_SERVER=nfs.yourdomain.com            # NFS server where local files for 'nfs' repos are found
   export DEF_NFS_SERVER_BASE=/remote/nfs/share/base   # Path on local NFS server to prefix to repo names
   export NFS_PREFIX=/local/nfs/mountpoint         # Where to mount NFS exports locally before backing them up

/root/.backup/repos should look like this:
   reponame1;/path/to/files1/;tag1,tag2,...,tagX;repo_url;repo_passfile;repo_excludefile
   reponame2;/path/to/files2/;tag1,tag2,...,tagX;repo_url;repo_passfile;repo_excludefile
   ...
   reponameX;/path/to/filesX/;tag1,tag2,...,tagX;repo_url;repo_passfile;repo_excludefile

   Default password file is: /root/.backup/auth

Backup method tags:
   restic    Backup using restic (default repo is Backblaze B2 bucket $B2_BUCKET_PREFIX-<reponame>)
   rclone    Backup using rclone (default repo is Backblaze B2 bucket $B2_BUCKET_PREFIX-<reponame>)
   rsync     Backup using rsync (default repo is $DEF_RSYNC_USER@$DEF_RSYNC_SERVER:$DEF_RSYNC_DIR/<reponame>)
   postgres  Dump all postgres databases.   Instead of local file path, specify database name to backup.  If empty, all dbs are backed up.

Pre-backup commands to access local files:
   nfs           Mount $DEF_NFS_SERVER:$DEF_NFS_SERVER_BASE/<sharename> to <repopath>
		 before running.  Sharename determined by stripping $NFS_PREFIX
		 from start of repo path.
   usmb          Run 'usmb reponame' to mount $USMB_PREFIX/<sharename> before running.
		 Sharename determined by stripping $NFS_PREFIX from start of <repopath>.
   localmount    Run 'mount reponame' to mount <path_to_files> before running.

Pre-backup commands to access repo:
   premount=x  Run 'mount <x>' before command and 'umount x' afterwards.