235 lines
8.2 KiB
Bash
Executable File
235 lines
8.2 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
#######
|
|
### Backup NextCloud13 installation to external repo using Borg Backup
|
|
### Assuming both NextCloud & Borg setups as outlined in their respecitive
|
|
### series at https://mytechiethoughts.com
|
|
###
|
|
### Events:
|
|
### 1. Copy 503 error page to stop NGINX from serving web clients.
|
|
### (this depends on a complementary NGINX configuration)
|
|
### 2. Put NextCloud in maintenance mode to prevent logins and changes.
|
|
### 3. SQLdump from NextCloud.
|
|
### 4. Borg backup all files from xtraLocations.
|
|
### 5. Borg backup NextCloud data and files.
|
|
### 6. Put NextCloud back into operating mode.
|
|
### 7. Delete 503 error page so NGINX can serve web clients again.
|
|
#######
|
|
|
|
|
|
### Script variables -- please ensure they are accurate!
|
|
|
|
# web user on your system (default: www-data)
|
|
webUser=www-data
|
|
|
|
# FULL path to NGINX webroot (default: /usr/share/nginx/html)
|
|
webroot=/usr/share/nginx/html
|
|
|
|
# FULL path to NextCloud root directory
|
|
# By default, this is a folder within your webroot. If you setup is different
|
|
# then provide the FULL path here
|
|
# (default: webroot/nextcloud)
|
|
ncroot="$webroot/nextcloud"
|
|
|
|
# NextCloud data directory
|
|
# If this is setup according to the blog series at https://mytechiethoughts.com
|
|
# then this is '/var/nc_data'. If not, please change as appropriate for your
|
|
# environment.
|
|
# (default: /var/nc_data)
|
|
ncdata=/var/nc_data
|
|
|
|
# name of 503-error page (default: 503-error.html)
|
|
# MUST be in the same directory as THIS script
|
|
err503FileName=503-backup.html
|
|
|
|
# desired directory for SQLdump -- will be created if necessary
|
|
# (default: /SQLdump)
|
|
sqlDumpDir=/SQLdump
|
|
|
|
# FULL path to SQL details file (explained in blog)
|
|
# This is a 4 line file in the EXACT format:
|
|
#sqlHostMachineName
|
|
#sqlDBUsername
|
|
#sqlDBPassword
|
|
#sqlDBName
|
|
#(default: /root/sqlDetails)
|
|
sqlDetails=/root/sqlDetails
|
|
|
|
# Borg BASE directory (default: /var/borgbackup)
|
|
borgBaseDir=/var/borgbackup
|
|
|
|
# FULL path to your remote server SSH private keyfile (no default)
|
|
borgRemoteSSHKeyfile=/var/borgbackup/rsync.key
|
|
|
|
# Borg remote path (default for rsync: borg1)
|
|
borgRemotePath=borg1
|
|
|
|
# FULL path to Borg repo details file (explained in blog)
|
|
# This is a 2 line file in the EXACT format:
|
|
# repo-name in format user@server.tld:repo
|
|
# passphrase
|
|
# This ensures no sensitive details are stored in this script :-)
|
|
# (default: borgBaseDir/repoDetails.borg)
|
|
borgDetails="$borgBaseDir/repoDetails.borg"
|
|
|
|
# FULL path to the extra source-list file (explained in blog)
|
|
# This file lists any extra files and directories that should be included
|
|
# in the backup along with the standard mailcow files/directories this script
|
|
# will be including.
|
|
# One source-entry per line.
|
|
# No spaces, comments or any other extraneous information, just the files/dirs
|
|
# Directories must end with tailing slash
|
|
# (default: borgBaseDir/xtraLocations.borg)
|
|
borgXtraFiles="$borgBaseDir/xtraLocations.borg"
|
|
|
|
# Pruning options for borg archive (see BorgBackup documentation for details)
|
|
# This default example keeps all backups within the last 14 days, 12 weeks
|
|
# of end-of-week backups and 6 months of end-of-month backups.
|
|
borgPrune='--keep-within=14d --keep-weekly=12 --keep-monthly=6'
|
|
|
|
# desired name and location of log file for this script
|
|
# (default: /var/log/mailcow_backup.log)
|
|
logFile=/var/log/borgbackup.log
|
|
|
|
|
|
### Do NOT edit below this line
|
|
|
|
|
|
## Ensure script is running as root (required) otherwise, exit
|
|
#if [ $(id -u) -ne 0 ]; then
|
|
# echo -e "\e[1;31m[`date +%Y-%m-%d` `date +%H:%M:%S`] This script MUST" \
|
|
# "be run as ROOT."
|
|
# echo -e "\e[4;31mScript aborted\e[0;31m.\e[0m"
|
|
# exit 1
|
|
#fi
|
|
|
|
|
|
### elevate script -- used during program testing
|
|
if [ $EUID != 0 ]; then
|
|
sudo "$0" "$scriptPath"
|
|
exit $?
|
|
fi
|
|
|
|
|
|
## Write script execution start in log file
|
|
echo -e "\e[1;32m[`date +%Y-%m-%d` `date +%H:%M:%S`]" \
|
|
"--Begin backup operations--\e[0m" >> $logFile
|
|
|
|
## Parse supplied variables and determine additional script vars
|
|
scriptPath="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
|
err503FullPath="$scriptPath/$err503FileName"
|
|
|
|
## Export logfle location for use by external programs
|
|
export logFile="$logFile"
|
|
|
|
## Check for sqlDumpDir and create if necessary
|
|
if [ -e $sqlDumpDir ]; then
|
|
echo -e "\e[0m[`date +%Y-%m-%d` `date +%H:%M:%S`] Confirmed:" \
|
|
"sqlDumpDir exists at \e[0;33m$sqlDumpDir\e[0m" >> $logFile
|
|
else
|
|
echo -e "\e[0;36m[`date +%Y-%m-%d` `date +%H:%M:%S`] Creating:" \
|
|
"\e[0;33m$sqlDumpDir\e[0;36m..." >> $logFile
|
|
mkdir $sqlDumpDir &>> $logFile
|
|
# confirm creation successful
|
|
if [ -e $sqlDumpDir ]; then
|
|
echo -e "...done\e[0m" >> $logFile
|
|
else
|
|
echo -e "\e[1;31m[`date +%Y-%m-%d` `date +%H:%M:%S`]" \
|
|
"--Error-- There was a problem creating $sqlDumpDir." >> $logFile
|
|
echo -e "\e[4;31m--Error-- Script aborted\e[0;31m.\e[0m" >> $logFile
|
|
exit 101
|
|
fi
|
|
fi
|
|
|
|
## Create unique filename for sqlDump file
|
|
sqlDumpFile="backup_${DBNAME}_`date +%Y%m%d_%H%M%S`.sql"
|
|
echo -e "\e[0m[`date +%Y-%m-%d` `date +%H:%M:%S`] mysql dump file will be" \
|
|
"stored at:" >> $logFile
|
|
echo -e "\e[0;33m$sqlDumpDir/$sqlDumpFile\e[0m" >> $logFile
|
|
|
|
## Find 503 error page and copy to NGINX webroot
|
|
## File must be in the same location as this script
|
|
## IF file is not found, log warning but continue script
|
|
if [ -e $err503FullPath ]; then
|
|
echo -e "\e[0m[`date +%Y-%m-%d` `date +%H:%M:%S`] Found 503 error" \
|
|
"page at:" >> $logFile
|
|
echo -e "\e[0;33m$err503FullPath\e[0m" >> $logFile
|
|
# copy 503 to webroot
|
|
echo -e "\e[1;36m[`date +%Y-%m-%d` `date +%H:%M:%S`] Copying 503 error" \
|
|
"page to NGINX webroot..." >> $logFile
|
|
cp $err503FullPath $webroot/ &>> $logFile
|
|
# check file actually copied
|
|
if [ -e "$webroot/$err503FileName" ]; then
|
|
echo -e "\e[0;36m...done\e[0m" >> $logFile
|
|
else
|
|
echo -e "\e[1;33m[`date +%Y-%m-%d` `date +%H:%M:%S`] --Warning--" \
|
|
"There was a problem copying the 503 error page to" \
|
|
"webroot." >> $logFile
|
|
echo -e "\e[1;33m--Warning-- Web users will NOT be notified the" \
|
|
"server is down.\e[0m" >> $logFile
|
|
echo -e "Script will continue processing..." >> $logFile
|
|
fi
|
|
else
|
|
echo -e "\e[1;33m[`date +%Y-%m-%d` `date +%H:%M:%S`] --Warning--" \
|
|
"Could not locate 503 error page at \e[0;33m$err503FullPath" >> $logFile
|
|
echo -e "\e[1;33m--Warning-- This file should be re-created" \
|
|
"ASAP." >> $logFile
|
|
echo -e "\e[1;33m--Warning-- Web users will NOT be notified the" \
|
|
"server is down.\e[0m" >> $logFile
|
|
echo -e "Script will continue processing..." >> $logFile
|
|
fi
|
|
|
|
## Put NextCloud in maintenance mode
|
|
echo -e "\e[1;36m[`date +%Y-%m-%d` `date +%H:%M:%S`] Putting NextCloud" \
|
|
"in maintenance mode..." >> $logFile
|
|
sudo -u ${webUser} php "${ncroot}/occ maintenance:mode --on" 2>> $logFile
|
|
# verify
|
|
if [ "$?" = "0" ]; then
|
|
echo -e "\e[0;36m...done\e[0m" >> $logFile
|
|
else
|
|
echo -e "\e[1;31m--Error-- There was a problem putting NextCloud" \
|
|
"into maintenance mode" >> $logFile
|
|
echo -e "\e[4;31mScript aborted\e[0;31m.\e[0m" >> $logFile
|
|
exit 100
|
|
fi
|
|
|
|
## Read sqlDetails file and extract necessary information
|
|
mapfile -t sqlParams < $sqlDetails
|
|
|
|
## Dump SQL
|
|
echo -e "\e[1;36m[`date +%Y-%m-%d` `date +%H:%M:%S`]" \
|
|
"Dumping SQL..." >> $logFile
|
|
mysqldump --single-transaction -h${sqlParams[0]} -u${sqlParams[1]} -p${sqlParams[2]} ${sqlParams[3]} > "$sqlDumpDir/$sqlDumpFile"
|
|
# verify
|
|
if [ "$?" = "0" ]; then
|
|
echo -e "\e[0;36m...done\e[0m" >> $logFile
|
|
else
|
|
echo -e "\e[1;31m--Error-- There was a problem dumping SQL." >> $logFile
|
|
echo -e "\e[4;31mScript aborted\e[0;31m.\e[0m" >> $logFile
|
|
exit 102
|
|
fi
|
|
|
|
## Ready for Borg
|
|
echo -e "\e[1;39m[`date +%Y-%m-%d` `date +%H:%M:%S`] Pre-backup tasks" \
|
|
"completed... calling BorgBackup" >> $logFile
|
|
|
|
## Generate and export variables required for BorgBackup
|
|
export BORG_BASE_DIR="$borgBaseDir"
|
|
export BORG_REMOTE_PATH="$borgRemotePath"
|
|
export BORG_RSH="ssh -i $borgRemoteSSHKeyfile"
|
|
export BORG_REPO="$(head -1 $borgDetails)"
|
|
export BORG_PASSPHRASE="$(tail -1 $borgDetails)"
|
|
|
|
## Process borgXtraFiles into array variable
|
|
mapfile -t xtraFiles < $borgXtraFiles
|
|
|
|
## Call BorgBackup
|
|
borg --show-rc create --list ::`date +%Y-%m-%d_%H%M%S` \
|
|
"${xtraFiles[@]}" \
|
|
"$ncdata" \
|
|
"$sqlDumpDir/$sqlDumpFile" 2>> $logFile
|
|
|
|
|
|
|
|
# Gracefully exit
|
|
exit 0 |