Simple generic backup script for borg

borg_cron.sh

#!/bin/bash
#
# Simple cron-intended script for Borg Backup 
#
# Author: Michael Goodwin Date: 2018-02-23

# Exit on error immediately
# This is important if you want to make sure that each step
# only runs if the previous step exited with a 0 status.
# Like a universal && everywhere.
set -e 

# Vars and Configuration
#BORG_PASSPHRASE=
BORG_PASSCOMMAND="cat $HOME/.borg_password"
BORG_REPO='/root/borg/mongodb'
REPO_TYPE='repokey-blake2'
COMPRESSION="auto,zstd"
VERBOSE="-vs"
PREFIX='{hostname}-cron'
KEEP_WITHIN="7d"
DAILY=60
WEEKLY=
MONTHLY=6
YEARLY=

export ${!BORG_*}

do_borg_init() {
    if [[ ! -d "${BORG_REPO}" ]]; then
        mkdir -p "${BORG_REPO%/*}" \
        && eval borg init ${REPO_TYPE:+-e ${REPO_TYPE}} \
            "${BORG_REPO}"
    fi
}
do_borg_create() {
    eval borg create ${COMPRESSION:+-C ${COMPRESSION}} $VERBOSE \
        ::"${PREFIX}-"'{now:%Y-%m-%dT%H:%M:%S}' "${PATHS[@]}"
}
do_borg_prune() {
    eval borg prune $VERBOSE ${PREFIX:+--prefix ${PREFIX}} \
        ${KEEP_WITHIN:+--keep-within=${KEEP_WITHIN}} \
        ${DAILY:+-d ${DAILY}} ${WEEKLY:+-w ${WEEKLY}} \
        ${MONTHLY:+-m ${MONTHLY}} ${YEARLY:+-y ${YEARLY}}
}

#####################################################

##### PRE-BORG VARS - Define vars here that you need

TEMPDIR="/tmp/mongodb_backup"

##### BACKUP PATHS - Dirs/files to backup - recursive

PATHS=(
    "$TEMPDIR"
    "/var/lib/rocket.chat"
)

##### PRE-BORG - Put stuff here to run before borg

mkdir -p -m 0700 "${TEMPDIR}"
find "${TEMPDIR:?ERROR UNSET VARIABLE}" -mindepth 1 -delete
/bin/mongodump -o "$TEMPDIR" &&

##### END PRE-BORG ###############################
##################################################

do_borg_init && do_borg_create && do_borg_prune

##################################################
##### POST-BORG - Put stuff here to run after borg

aws s3 sync --delete /root/borg/ s3://borg-chat.opsech.io

##### END POST-BORG