roles/base/backup/files/default/backup.sh

   1 #!/bin/bash
   2 ################################################
   3 ### Managed by someone's ansible provisioner ###
   4 ################################################
   5 # Part of: https://git.somenet.org/root/pub/somesible.git
   6 # 2017-2026 by someone <someone@somenet.org>
   7 #
   8
   9 umask 0077
  10 cd /tmp
  11 export ERRCODE=0
  12
  13 export BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK="yes"
  14 export BORG_RELOCATED_REPO_ACCESS_IS_OK="yes"
  15
  16 function backup {
  17     export BKPREPO=${1} # backup repo (should be: "/bkp/storage-local/$host/$path" or for ssh: "user@server:$path")
  18     export BKPHOST=${2} # src-host
  19     export BKPPATH=${3} # abs-path on src-host
  20     export BKPKEEP=${4} # pruning-settings
  21     export BORG_PASSPHRASE=${5} # borg key passphrase
  22
  23     BKPPATH_ESCAPED=$(echo -n "$BKPPATH"|sed -e 's#/#-#g') # contains first "/"
  24
  25     if [[ -z "$BORG_PASSPHRASE" ]]; then
  26         borg info "$BKPREPO" >/dev/null 2>&1 || borg init --umask 0077 -e none --make-parent-dirs "$BKPREPO"
  27     else
  28         borg info "$BKPREPO" >/dev/null 2>&1 || borg init --umask 0077 -e repokey-blake2 --make-parent-dirs "$BKPREPO"
  29     fi
  30
  31     echo "# Merged on: $(date -Isec)" > "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED"
  32     for file in /bkp/local/exclude.conf.d/$BKPHOST-$BKPPATH_ESCAPED*; do
  33         echo -e "\n\n# $file" >> "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED"
  34         cat "$file" >> "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED"
  35     done
  36
  37     borg create --umask 0077 --info --list --stats --noctime --nobirthtime --exclude-caches --exclude-from "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED" "$BKPREPO::$BKPHOST-$BKPPATH_ESCAPED--{now}" "$BKPPATH"
  38         exit_status=$?;
  39         if [ $exit_status -ne 0 ]; then
  40             export ERRCODE="$exit_status";
  41             echo "** backup.sh (backup:create): non-zero exitcode: $exit_status"
  42         fi
  43
  44     backup_prune "$BKPREPO" "$BKPKEEP" "$BORG_PASSPHRASE"
  45 }
  46
  47 function backup2 {
  48     export BKPREPO=${1} # backup repo (should be: "/bkp/storage-local/$host/$path" or for ssh: "user@server:$path")
  49     export BKPHOST=${2} # src-host
  50     export BKPPATH=${3} # abs-path on src-host
  51     export BKPKEEP=${4} # pruning-settings
  52     export BORG_PASSPHRASE=${5} # borg key passphrase
  53
  54     BKPPATH_ESCAPED=$(echo -n "$BKPPATH"|sed -e 's#/#-#g') # contains first "/"
  55
  56     if [[ -z "$BORG_PASSPHRASE" ]]; then
  57         borg2 repo-info --repo "$BKPREPO" >/dev/null 2>&1 || borg2 repo-create --umask 0077 -e none --repo "$BKPREPO"
  58     else
  59         borg2 repo-info --repo "$BKPREPO" >/dev/null 2>&1 || borg2 repo-create --umask 0077 -e repokey-blake2-chacha20-poly1305 --repo "$BKPREPO"
  60     fi
  61
  62     echo "# Merged on: $(date -Isec)" > "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED"
  63     for file in /bkp/local/exclude.conf.d/$BKPHOST-$BKPPATH_ESCAPED*; do
  64         echo -e "\n\n# $file" >> "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED"
  65         cat "$file" >> "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED"
  66     done
  67
  68     echo "** backup.sh(backup2:create) ********************************************************************************************************************************"
  69     borg2 create --umask 0077 --info --list --stats --nobirthtime --compression zstd --exclude-caches --exclude-from "/bkp/local/exclude.conf.d/.merged.$BKPHOST-$BKPPATH_ESCAPED" --repo "$BKPREPO" "$BKPHOST-$BKPPATH_ESCAPED" "$BKPPATH"
  70         exit_status=$?;
  71         if [ $exit_status -ne 0 ]; then
  72             export ERRCODE="$exit_status";
  73             echo "** backup.sh (backup2:create): non-zero exitcode: $exit_status"
  74         fi
  75
  76     backup_prune2 "$BKPREPO" "$BKPKEEP" "$BORG_PASSPHRASE"
  77 }
  78
  79 function backup_cmd {
  80     export BKPREPO=${1} # backup repo (should be: "/bkp/storage-local/$host/$path" or for ssh: "user@server:$path")
  81     export BKPNAME=${2} # backup name
  82     export BKPCMD=${3}  # command to run
  83     export BKPKEEP=${4} # pruning-settings
  84     export BORG_PASSPHRASE=${5} # borg key passphrase
  85
  86     if [[ -z "$BORG_PASSPHRASE" ]]; then
  87         borg info "$BKPREPO" >/dev/null 2>&1 || borg init --umask 0077 -e none --make-parent-dirs "$BKPREPO"
  88     else
  89         borg info "$BKPREPO" >/dev/null 2>&1 || borg init --umask 0077 -e repokey-blake2 --make-parent-dirs "$BKPREPO"
  90     fi
  91
  92     borg create --umask 0077 --info --stats --noctime --nobirthtime --compression zstd --files-cache disabled --content-from-command -- "$BKPREPO::$BKPNAME--{now}" $BKPCMD
  93         exit_status=$?;
  94         if [ $exit_status -ne 0 ]; then
  95             export ERRCODE="$exit_status";
  96             echo "** backup.sh (backup_cmd:create): non-zero exitcode: $exit_status"
  97         fi
  98
  99     backup_prune "$BKPREPO" "$BKPKEEP" "$BORG_PASSPHRASE"
 100 }
 101
 102 function backup_cmd2 {
 103     export BKPREPO=${1} # backup repo (should be: "/bkp/storage-local/$host/$path" or for ssh: "user@server:$path")
 104     export BKPNAME=${2} # backup name
 105     export BKPCMD=${3}  # command to run
 106     export BKPKEEP=${4} # pruning-settings
 107     export BORG_PASSPHRASE=${5} # borg key passphrase
 108
 109     if [[ -z "$BORG_PASSPHRASE" ]]; then
 110         borg2 repo-info --repo "$BKPREPO" >/dev/null 2>&1 || borg2 repo-create --umask 0077 -e none --repo "$BKPREPO"
 111     else
 112         borg2 repo-info --repo "$BKPREPO" >/dev/null 2>&1 || borg2 repo-create --umask 0077 -e repokey-blake2-chacha20-poly1305 --repo "$BKPREPO"
 113     fi
 114
 115     echo "** backup.sh(backup_cmd2:create) ********************************************************************************************************************************"
 116     borg2 create --umask 0077 --info --stats --nobirthtime --compression zstd --files-cache disabled --content-from-command --repo "$BKPREPO" "$BKPNAME" -- $BKPCMD
 117         exit_status=$?;
 118         if [ $exit_status -ne 0 ]; then
 119             export ERRCODE="$exit_status";
 120             echo "** backup.sh (backup_cmd2:create): non-zero exitcode: $exit_status"
 121         fi
 122
 123     backup_prune2 "$BKPREPO" "$BKPKEEP" "$BORG_PASSPHRASE"
 124 }
 125
 126 function backup_prune {
 127     export BKPREPO=${1} # backup repo (should be: "/bkp/storage-local/$host/$path" or for ssh: "user@server:$path")
 128     export BKPKEEP=${2} # pruning-settings
 129     export BORG_PASSPHRASE=${3} # borg key passphrase
 130
 131     if [[ -z "$BKPKEEP" ]]; then
 132         echo "** backup.sh(backup_prune): No prune settings, skipping"
 133     else
 134         borg prune --umask 0077 --list --stats --save-space --keep-last 1 $BKPKEEP "$BKPREPO"
 135             exit_status=$?;
 136             if [ $exit_status -ne 0 ]; then
 137                 export ERRCODE="$exit_status";
 138                 echo "** backup.sh (backup_prune:prune): non-zero exitcode: $exit_status"
 139             fi
 140        borg compact --umask 0077 -v --cleanup-commits "$BKPREPO"
 141             exit_status=$?;
 142             if [ $exit_status -ne 0 ]; then
 143                 export ERRCODE="$exit_status";
 144                 echo "** backup.sh (backup_prune:compact): non-zero exitcode: $exit_status"
 145             fi
 146     fi
 147 }
 148
 149 function backup_prune2 {
 150     export BKPREPO=${1} # backup repo (should be: "/bkp/storage-local/$host/$path" or for ssh: "user@server:$path")
 151     export BKPKEEP=${2} # pruning-settings
 152     export BORG_PASSPHRASE=${3} # borg key passphrase
 153
 154     if [[ -z "$BKPKEEP" ]]; then
 155         echo "** backup.sh(backup_prune2): No prune settings, skipping"
 156     else
 157         echo "** backup.sh(backup_prune2:prune) ********************************************************************************************************************************"
 158         time borg2 prune --umask 0077 --list --keep-last 1 $BKPKEEP --repo "$BKPREPO"
 159             exit_status=$?;
 160             if [ $exit_status -ne 0 ]; then
 161                 export ERRCODE="$exit_status";
 162                 echo "** backup.sh (backup_prune2:prune): non-zero exitcode: $exit_status"
 163             fi
 164         echo "** backup.sh(backup_prune2:compact) ********************************************************************************************************************************"
 165         time borg2 compact --umask 0077 -v --stats --repo "$BKPREPO"
 166             exit_status=$?;
 167             if [ $exit_status -ne 0 ]; then
 168                 export ERRCODE="$exit_status";
 169                 echo "** backup.sh (backup_prune2:compact): non-zero exitcode: $exit_status"
 170             fi
 171     fi
 172 }
 173
 174 # run managed
 175 echo "** backup.sh: running /bkp/local/backup.conf.managed"
 176 source /bkp/local/backup.conf.managed
 177
 178 # run local additions
 179 if [ -e "/bkp/local/backup.conf.local" ]; then
 180     echo "** backup.sh: running /bkp/local/backup.conf.local"
 181     source /bkp/local/backup.conf.local
 182 fi
 183
 184 echo "** backup.sh: DONE"
 185
 186 unset BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK
 187 unset BORG_RELOCATED_REPO_ACCESS_IS_OK
 188
 189 exit $ERRCODE