ansible-taler-exchange

Ansible playbook to deploy a production Taler Exchange
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borg-backup.sh (2756B)

      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 $( date ) Backup interrupted >&2; exit 2' INT TERM
      9 
     10 cd /root
     11 
     12 info "Dumping database"
     13 
     14 sudo -u postgres pg_dumpall > postgres-backup.sql
     15 db_exit=$?
     16 
     17 if [[ $db_exit -ne 0 ]]; then
     18     info "DB export failed, exit status $db_exit"
     19     exit 1
     20 fi
     21 
     22 # Note: I actually benchmarked (!) this on *out* SQL data.
     23 # zstd was fastest, but gzip was smallest
     24 # (tested: gzip, bzip, zstd, lzip, xz)
     25 gzip postgres-backup.sql || exit 1
     26 
     27 echo "Database snapshot created:"
     28 ls -al postgres-backup.sql.gz
     29 
     30 info "Starting backup"
     31 
     32 # Backup the most important directories into an archive named after
     33 # the machine this script is currently running on:
     34 
     35 borg create                         \
     36     --verbose                       \
     37     --filter AME                    \
     38     --list                          \
     39     --stats                         \
     40     --show-rc                       \
     41     --compression lz4               \
     42     --exclude-caches                \
     43     --exclude 'home/*/.cache/*'     \
     44     --exclude 'var/tmp/*'           \
     45     --exclude 'var/lib/taler-exchange/secmod-*/*' \
     46                                     \
     47     ::'{hostname}-{now}'            \
     48     /etc                            \
     49     /root                           \
     50     /var/lib/libeufin-nexus         \
     51     /var/lib/taler-exchange
     52 
     53 backup_exit=$?
     54 
     55 info "Removing database dump"
     56 
     57 rm postgres-backup.sql.gz
     58 
     59 
     60 info "Pruning repository"
     61 
     62 # Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
     63 # archives of THIS machine. The '{hostname}-*' matching is very important to
     64 # limit prune's operation to this machine's archives and not apply to
     65 # other machines' archives also:
     66 
     67 borg prune                          \
     68     --list                          \
     69     --glob-archives '{hostname}-*'  \
     70     --show-rc                       \
     71     --keep-daily    7               \
     72     --keep-weekly   4               \
     73     --keep-monthly  6
     74 
     75 prune_exit=$?
     76 
     77 # actually free repo disk space by compacting segments
     78 
     79 info "Compacting repository"
     80 
     81 borg compact
     82 
     83 compact_exit=$?
     84 
     85 # use highest exit code as global exit code
     86 global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
     87 global_exit=$(( compact_exit > global_exit ? compact_exit : global_exit ))
     88 global_exit=$(( db_exit > global_exit ? db_exit : global_exit ))
     89 
     90 if [ ${global_exit} -eq 0 ]; then
     91     info "Backup, Prune, and Compact finished successfully"
     92 elif [ ${global_exit} -eq 1 ]; then
     93     info "Backup, Prune, and/or Compact finished with warnings"
     94 else
     95     info "Backup, Prune, and/or Compact finished with errors"
     96 fi
     97 
     98 exit ${global_exit}