From 0bdfd14340a878c2ec615878604f94b035f500e5 Mon Sep 17 00:00:00 2001
From: "Heavy@Hetzner" <web-hetzner@heavy.uber.space>
Date: Sat, 4 Feb 2023 10:46:40 +0000
Subject: [PATCH] Added template for borg backups.

---
 .talismanrc                   |  4 ++
 bin/executable_borg-backup.sh | 76 +++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 .talismanrc
 create mode 100644 bin/executable_borg-backup.sh

diff --git a/.talismanrc b/.talismanrc
new file mode 100644
index 0000000..a359baa
--- /dev/null
+++ b/.talismanrc
@@ -0,0 +1,4 @@
+fileignoreconfig:
+- filename: bin/executable_borg-backup.sh
+  checksum: e74614bd00bc04855bac1aec2de6f2d224bfc0a0c4e1cee987fc6290255a895c
+version: ""
diff --git a/bin/executable_borg-backup.sh b/bin/executable_borg-backup.sh
new file mode 100644
index 0000000..7cbd543
--- /dev/null
+++ b/bin/executable_borg-backup.sh
@@ -0,0 +1,76 @@
+#!/bin/sh
+#
+# Template for a Borg Backup, intended to be run by cron.
+#
+
+# Setting this, so the repo does not need to be given on the commandline:
+export BORG_REPO=u332156-sub1@u332156.your-storagebox.de:borg-hetzner
+
+# See the section "Passphrase notes" for more infos.
+export BORG_PASSPHRASE='<borg-passphrase>'
+
+# some helpers and error handling:
+info() { printf "\n%s %s\n\n" "$( date )" "$*" >&2; }
+trap 'echo $( date ) Backup interrupted >&2; exit 2' INT TERM
+
+info "Starting backup"
+
+# Backup the most important directories into an archive named after
+# the machine this script is currently running on:
+
+borg create                         \
+    --verbose                       \
+    --filter AME                    \
+    --list                          \
+    --stats                         \
+    --show-rc                       \
+    --compression lz4               \
+    --exclude-caches                \
+    --exclude 'home/*/.cache/*'     \
+    --exclude 'var/tmp/*'           \
+                                    \
+    ::'{hostname}-{now}'            \
+    /home                           \
+    /etc                            \
+    /root
+
+backup_exit=$?
+
+info "Pruning repository"
+
+# Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
+# archives of THIS machine. The '{hostname}-*' matching is very important to
+# limit prune's operation to this machine's archives and not apply to
+# other machines' archives also:
+
+borg prune                          \
+    --list                          \
+    --glob-archives '{hostname}-*'  \
+    --show-rc                       \
+    --keep-daily    7               \
+    --keep-weekly   4               \
+    --keep-monthly  6
+
+prune_exit=$?
+
+# actually free repo disk space by compacting segments
+
+info "Compacting repository"
+
+# does not work: borg compact
+
+compact_exit=$?
+
+# use highest exit code as global exit code
+global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
+global_exit=$(( compact_exit > global_exit ? compact_exit : global_exit ))
+
+if [ ${global_exit} -eq 0 ]; then
+    info "Backup, Prune, and Compact finished successfully"
+elif [ ${global_exit} -eq 1 ]; then
+    info "Backup, Prune, and/or Compact finished with warnings"
+else
+    info "Backup, Prune, and/or Compact finished with errors"
+fi
+
+exit ${global_exit}