From 560997b5174614d4c76bd065a39f8432102fdb88 Mon Sep 17 00:00:00 2001
From: PlexSheep <software@cscherr.de>
Date: Sun, 11 Jun 2023 00:04:22 +0200
Subject: [PATCH] initial commit

---
 backup.sh         |  6 ++++
 borg-backup       | 82 +++++++++++++++++++++++++++++++++++++++++++++++
 btrfs-raid-status |  9 ++++++
 mail-logger       | 26 +++++++++++++++
 4 files changed, 123 insertions(+)
 create mode 100755 backup.sh
 create mode 100755 borg-backup
 create mode 100755 btrfs-raid-status
 create mode 100755 mail-logger

diff --git a/backup.sh b/backup.sh
new file mode 100755
index 0000000..73b3ba5
--- /dev/null
+++ b/backup.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# check if password was set
+if [[ -z "${THESEUS_BORG_PASS}" ]]; then
+    echo 'THESEUS_BORG_PASS is not set, `export THESEUS_BORG_PASS=PASS`'
+fi
+REPO_URL = plex@homeserver.box:/srv/data/backup/borg/theseus
diff --git a/borg-backup b/borg-backup
new file mode 100755
index 0000000..f292f42
--- /dev/null
+++ b/borg-backup
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+# Setting this, so the repo does not need to be given on the commandline:
+export BORG_REPO=/srv/data/backup/borg/homeserver
+
+# See the section "Passphrase notes" for more infos.
+export BORG_PASSPHRASE="$(cat /root/secret/borg-homeserver.key)"
+
+# some helpers and error handling:
+info() { printf "\n%s %s\n\n" "$( date )" "$*" >&2; }
+trap 'echo $( date ) Backup interrupted >&2; exit 2' INT TERM
+
+info "Starting backup"
+
+# Backup the most important directories into an archive named after
+# the machine this script is currently running on:
+
+/usr/local/bin/borg create                         \
+    --verbose                       \
+    --filter AME                    \
+    --list                          \
+    --stats                         \
+    --show-rc                       \
+    --compression zstd,11           \
+    --exclude-caches                \
+    --exclude 'home/*/.cache/*'     \
+    --exclude 'var/tmp/*'           \
+    --exclude 'var/cache/*'         \
+    --exclude 'srv/data/backup'     \
+    --exclude '*/.Trash*'           \
+                                    \
+    ::'{hostname}-{now}'            \
+    /etc                            \
+    /lib                            \
+    /home                           \
+    /root                           \
+    /var                            \
+    /srv                            \
+    /docker
+
+backup_exit=$?
+
+info "Pruning repository"
+
+# Use the `prune` subcommand to maintain 3 daily, 3 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:
+
+/usr/local/bin/borg prune                          \
+    --list                          \
+    --glob-archives '{hostname}-*'  \
+    --show-rc                       \
+    --keep-daily    3               \
+    --keep-weekly   3               \
+    --keep-monthly  6
+
+prune_exit=$?
+
+# actually free repo disk space by compacting segments
+
+info "Compacting repository"
+
+/usr/local/bin/borg compact
+
+compact_exit=$?
+
+# 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
+
+du -hs $BORG_REPO
+
+exit ${global_exit}
diff --git a/btrfs-raid-status b/btrfs-raid-status
new file mode 100755
index 0000000..948c56b
--- /dev/null
+++ b/btrfs-raid-status
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+dev="/dev/sde"
+fs="/srv"
+btrfs device scan $dev
+btrfs device stats $fs
+btrfs filesystem show $fs
+btrfs filesystem df $fs
+btrfs filesystem du -s $fs
+btrfs filesystem usage $fs
diff --git a/mail-logger b/mail-logger
new file mode 100755
index 0000000..f943a51
--- /dev/null
+++ b/mail-logger
@@ -0,0 +1,26 @@
+#!/bin/bash
+mkdir -p /tmp/mail-logger
+mkdir -p /tmp/mail-logger-meta
+mkdir -p /tmp/mail-logger-big
+
+cp /var/log/borg-cron.log /tmp/mail-logger-big
+cp /var/log/btrfs-raid-status.log /tmp/mail-logger
+cp /var/log/snowboard-download.log /tmp/mail-logger
+
+cat /tmp/mail-logger/* >> /tmp/mail-logger-meta/combined.log
+cat /tmp/mail-logger-big/* >> /tmp/mail-logger-meta/combined.log
+
+echo -e "\
+Daily mail report for $(hostname) $(date +"%Y-%m-%dT%H:%M:%S%z").\n\
+A summary of the logs is below.\
+If you want to see the complete logs, open the attachment of this E-Mail.\n\n\
+==================================================================================================\
+=====================\n\
+" > /tmp/mail-logger-meta/mail.txt
+
+tail -vn 300 /tmp/mail-logger/* >> /tmp/mail-logger-meta/mail.txt
+tail -vn 50 /tmp/mail-logger-big/* >> /tmp/mail-logger-meta/mail.txt
+
+mail-script "logs@cscherr.de" "logs@cscherr.de" "daily mail report for $(hostname) $(date +"%Y-%m-%d")" /tmp/mail-logger-meta/combined.log < /tmp/mail-logger-meta/mail.txt | sendmail -oi -t
+
+rm -rf /tmp/mail-logger*