From ad22ef40cfe4e70435d62a846bfb6a8a29aab62c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Geoffrey=20=E2=80=9CFrogeye=E2=80=9D=20Preud=27homme?=
 <geoffrey@frogeye.fr>
Date: Thu, 1 Aug 2019 21:29:20 +0200
Subject: [PATCH] Import of backup script from various sources

---
 backup.sh        | 105 +++++++++++++++++++++++++++++++++++++++++++++++
 config.sample.sh |  65 +++++++++++++++++++++++++++++
 2 files changed, 170 insertions(+)
 create mode 100755 backup.sh
 create mode 100755 config.sample.sh

diff --git a/backup.sh b/backup.sh
new file mode 100755
index 0000000..9f0a1fd
--- /dev/null
+++ b/backup.sh
@@ -0,0 +1,105 @@
+#!/usr/bin/env bash
+
+# Backup script v3
+# Uses restic
+
+cd `dirname ${BASH_SOURCE-$0}`
+
+RUNFILE=/var/run/bkp
+if [ -e $RUNFILE ] && ps -p $(cat $RUNFILE) > /dev/null
+then
+    >&2 echo "Another backup instance is running. Skipping"
+    exit 1
+fi
+
+echo $$ > $RUNFILE
+echo → Backup started
+
+source config.sh
+
+if [ ! -z ${ETCKEEPER_COMMIT_MESSAGE+x} ]
+then
+    etckeeper commit "$ETCKEEPER_COMMIT_MESSAGE" &> /dev/null &
+fi
+
+# Dumping acl
+ACLFILE=~/bkp/acl.gz
+function bkpACL() {
+    touch "$ACLFILE"
+    chmod 700 "$ACLFILE"
+    sudo getfacl -R "$SRC" 2> /dev/null | gzip > "$ACLFILE"
+}
+
+# Dumping database
+DBFILE=/var/bkp/psql.sql.gz
+function bkpPgsql() {
+    touch "$DBFILE"
+    chmod 700 "$DBFILE"
+    pg_dumpall | gzip > "$DBFILE"
+}
+
+# Dumping database
+DBFILE=./mysql.sql.gz
+function bkpMysql() {
+    touch "$DBFILE"
+    chmod 700 "$DBFILE"
+    mysqldump --defaults-extra-file=mysql.cnf --all-databases --flush-privileges | gzip > "$DBFILE"
+}
+
+# Dumping package list
+PACFILE=/var/bkp/pacman.list.gz
+function bkpPacman() {
+    touch "$PACFILE"
+    chmod 700 "$PACFILE"
+    comm -23 <(pacman -Qeq | sort) <(pacman -Qgq base base-devel | sort) | gzip > "$PACFILE"
+}
+
+# Dumping package list
+APTFILE=./apt.list.gz
+function bkpApt() {
+    touch "$APTFILE"
+    chmod 700 "$APTFILE"
+    apt list --installed 2> /dev/null | gzip > "$APTFILE" 
+}
+
+echo → Creating snapshots of databases
+
+bkpPgsql &
+bkpPacman &
+
+wait
+
+# echo "→ Restic: Transfering files"
+#
+# $RESTIC_CMD $RESTIC_OPTIONS backup $BACKUP_OPTIONS --cleanup-cache
+#
+# if [ ! -z ${FORGET_OPTIONS+x} ]
+# then
+#
+#     echo "→ Restic: Cleaning up"
+#
+#     $RESTIC_CMD $RESTIC_OPTIONS forget $FORGET_OPTIONS
+#
+# fi
+
+echo "→ Borg: Transfering files"
+
+TAG="$(date -Isec)"
+$BORG_CMD $BORG_OPTIONS create --stats $CREATE_OPTIONS "${BORG_REPO}::${TAG}" $FILES 2>&1
+
+if [ ! -z ${PRUNE_OPTIONS+x} ]
+then
+
+    echo "→ Borg: Cleaning up"
+
+    $BORG_CMD $BORG_OPTIONS prune --stats $PRUNE_OPTIONS $BORG_REPO 2>&1
+
+fi
+
+
+echo → Remove temporary files
+rm "$PACFILE" "$DBFILE"
+
+echo → Backup ended
+rm $RUNFILE
+
diff --git a/config.sample.sh b/config.sample.sh
new file mode 100755
index 0000000..07c3bbd
--- /dev/null
+++ b/config.sample.sh
@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+
+
+
+# Configuration options for the backup.sh script v4
+# TODO Do the v4
+
+cd `dirname ${BASH_SOURCE-$0}`
+
+# Connection options
+
+# Type of connection to the backup server
+TYPE="sftp"
+# Hostname/IP of the backup server
+HOST="bkpuser@backup.example.com"
+# Location of the backup directory on the backup server
+DEST="/srv/bkp/host"
+BDEST="/srv/bkp/host"
+
+# You will need to create a `resticpass` file in this directory
+
+# Exported variable for extra restic manipulation if needed
+export RESTIC_REPOSITORY="$TYPE:$HOST:$DEST"
+export BORG_REPO="ssh://$HOST$BDEST"
+export RESTIC_PASSWORD_FILE="$PWD/resticpass"
+export BORG_PASSPHRASE="$(cat $PWD/borgpass)"
+
+# Export options
+
+# Where the various exports will be saved 
+# The file will be deleted afterwards, so it is only to locate it in the backup
+WORKING_DIR="/var/bkp"
+
+# Create a etckeeper commit (make sure /etc is in $FILES for it to be saved) (unset if uneeded)
+ETCKEEPER_COMMIT_MESSAGE="Sauvegarde automatique du $(date)"
+
+
+# Backup options
+
+# Directories to backup
+FILES="/"
+# Pattern to exclude
+EXCLUDE=$(echo --exclude={"/var/cache","**.lock","**/.cache/"})
+# Tags to add to the backups
+TAGS=$(echo --tag={"auto","v3"})
+# Options for the backup command
+export BACKUP_OPTIONS="--one-file-system --cleanup-cache $FILES $EXCLUDE $TAGS"
+export CREATE_OPTIONS="--one-file-system --compression auto,zstd $EXCLUDE"
+
+# Forget options
+
+# Which snapshots to keep (inclusive)
+KEEP="--keep-hourly 24 --keep-daily 7 --keep-weekly 4 --keep-monthly 12 --keep-yearly 10"
+# Options for the restic forget command (unset if uneeded)
+export FORGET_OPTIONS="$KEEP --prune"
+export PRUNE_OPTIONS="$KEEP"
+
+# Executable options
+
+# Location of the restic command (you might want to add sudo in there)
+# RESTIC_CMD="$(which restic)"
+RESTIC_OPTIONS="--cache-dir /var/cache/restic"
+
+BORG_CMD="$(which borg)"
+BORG_OPTIONS=""