ansible-taler-exchange

Ansible playbook to deploy a production Taler Exchange
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borg-backup.sh (2651B)

      1 #!/bin/bash
      2 
      3 export BORG_REPO='{{ BORG_REPO }}'
      4 export BORG_PASSPHRASE='{{ BORG_PASSPHRASE }}'
      5 
      6 # some helpers and error handling:
      7 info() { printf "\n%s %s\n\n" "$( date )" "$*" >&2; }
      8 trap 'echo $( date ) Backup interrupted >&2; exit 2' INT TERM
      9 
     10 info "Dumping database"
     11 
     12 sudo -u postgres pg_dumpall > postgres-backup.sql
     13 db_exit=$?
     14 
     15 # Note: I actually benchmarked (!) this on *out* SQL data.
     16 # zstd was fastest, but gzip was smallest
     17 # (tested: gzip, bzip, zstd, lzip, xz)
     18 gzip postgres-backup.sql || exit 1
     19 
     20 echo "Database snapshot created:"
     21 ls -al postgres-backup.sql.gz
     22 
     23 info "Starting backup"
     24 
     25 # Backup the most important directories into an archive named after
     26 # the machine this script is currently running on:
     27 
     28 borg create                         \
     29     --verbose                       \
     30     --filter AME                    \
     31     --list                          \
     32     --stats                         \
     33     --show-rc                       \
     34     --compression lz4               \
     35     --exclude-caches                \
     36     --exclude 'home/*/.cache/*'     \
     37     --exclude 'var/tmp/*'           \
     38     --exclude 'var/lib/taler-exchange/secmod-*/*' \
     39                                     \
     40     ::'{hostname}-{now}'            \
     41     /etc                            \
     42     /root                           \
     43     /var/lib/libeufin-nexus         \
     44     /var/lib/taler-exchange
     45 
     46 backup_exit=$?
     47 
     48 info "Removing database dump"
     49 
     50 rm postgres-backup.sql.gz
     51 
     52 
     53 info "Pruning repository"
     54 
     55 # Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
     56 # archives of THIS machine. The '{hostname}-*' matching is very important to
     57 # limit prune's operation to this machine's archives and not apply to
     58 # other machines' archives also:
     59 
     60 borg prune                          \
     61     --list                          \
     62     --glob-archives '{hostname}-*'  \
     63     --show-rc                       \
     64     --keep-daily    7               \
     65     --keep-weekly   4               \
     66     --keep-monthly  6
     67 
     68 prune_exit=$?
     69 
     70 # actually free repo disk space by compacting segments
     71 
     72 info "Compacting repository"
     73 
     74 borg compact
     75 
     76 compact_exit=$?
     77 
     78 # use highest exit code as global exit code
     79 global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
     80 global_exit=$(( compact_exit > global_exit ? compact_exit : global_exit ))
     81 global_exit=$(( db_exit > global_exit ? db_exit : global_exit ))
     82 
     83 if [ ${global_exit} -eq 0 ]; then
     84     info "Backup, Prune, and Compact finished successfully"
     85 elif [ ${global_exit} -eq 1 ]; then
     86     info "Backup, Prune, and/or Compact finished with warnings"
     87 else
     88     info "Backup, Prune, and/or Compact finished with errors"
     89 fi
     90 
     91 exit ${global_exit}