From 1398683a04092f8e37eb32f35e3515ceb26b483f Mon Sep 17 00:00:00 2001
From: Teddysun <i@teddysun.com>
Date: Thu, 11 Aug 2016 21:23:18 +0900
Subject: [PATCH] Backup files & MySQL dump file

---
 backup.sh | 170 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100644 backup.sh

diff --git a/backup.sh b/backup.sh
new file mode 100644
index 0000000..1669e07
--- /dev/null
+++ b/backup.sh
@@ -0,0 +1,170 @@
+#!/usr/bin/env bash
+PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
+#==============================================================#
+#   Description: backup script                                 #
+#   Author: Teddysun <i@teddysun.com>                          #
+#   Visit:  https://teddysun.com                               #
+#==============================================================#
+
+[[ $EUID -ne 0 ]] && echo 'Error: This script must be run as root!' && exit 1
+
+### START OF CONFIG ###
+
+# Encrypt flag(true:encrypt, false:not encrypt)
+ENCRYPTFLG=true
+
+# KEEP THE PASSWORD SAFE.
+# The password used to encrypt the backup
+# To decrypt backups made by this script, run the following command:
+# openssl enc -aes256 -in [encrypted backup] -out decrypted_backup.tgz -pass pass:[backup password] -d -md sha1
+BACKUPPASS="mypassword"
+
+# Directory to store backups
+LOCALDIR="/root/backups/"
+
+# Temporary directory used during backup creation
+TEMPDIR="/root/backups/temp/"
+
+# File to log the outcome of backups
+LOGFILE="/root/backups/backup.log"
+
+# OPTIONAL: If you want MySQL to be backed up, enter the root password below
+MYSQL_ROOT_PASSWORD=""
+
+# Below is a list of files and directories that will be backed up in the tar backup
+# For example:
+# File: /data/www/default/test.tgz
+# Directory: /data/www/default/test/
+# if you want not to be backed up, leave it blank.
+BACKUP[0]=""
+
+# Date & Time
+BACKUPDATE=$(date +%Y%m%d%H%M%S)
+
+# Backup file name
+TARFILE="${LOCALDIR}""$(hostname)"_"${BACKUPDATE}".tgz
+
+# Backup MySQL dump file name
+SQLFILE="${TEMPDIR}mysql_${BACKUPDATE}.sql"
+
+### END OF CONFIG ###
+
+log() {
+    echo "$(date "+%Y-%m-%d %H:%M:%S")" "$1"
+    echo -e "$(date "+%Y-%m-%d %H:%M:%S")" "$1" >> ${LOGFILE}
+}
+
+### START OF CHECKS ###
+
+# Check if the backup folders exist and are writeable
+if [ ! -d "${LOCALDIR}" ]; then
+    mkdir -p ${LOCALDIR}
+fi
+if [ ! -d "${TEMPDIR}" ]; then
+    mkdir -p ${TEMPDIR}
+fi
+
+# This section checks for all of the binaries used in the backup
+BINARIES=( cat cd du date dirname echo openssl mysql mysqldump pwd rm tar )
+
+# Iterate over the list of binaries, and if one isn't found, abort
+for BINARY in "${BINARIES[@]}"; do
+    if [ ! "$(command -v "$BINARY")" ]; then
+        log "$BINARY is not installed. Install it and try again"
+        exit 1
+    fi
+done
+
+STARTTIME=$(date +%s)
+
+cd "${LOCALDIR}" || exit
+
+### END OF CHECKS ###
+
+
+### START OF MYSQL BACKUP ###
+
+if [ -z ${MYSQL_ROOT_PASSWORD} ]; then
+    log "MySQL root password not set, MySQL back up skip"
+else
+    log "MySQL dump start"
+    mysql -u root -p"${MYSQL_ROOT_PASSWORD}" <<EOF
+exit
+EOF
+    if [ $? -ne 0 ]; then
+        log "MySQL root password is incorrect. Please check it and try again"
+        exit 1
+    fi
+    mysqldump -u root -p"${MYSQL_ROOT_PASSWORD}" --all-databases > "${SQLFILE}"
+    if [ $? -ne 0 ]; then
+        log "MySQL backup failed"
+        exit 1
+    fi
+    log "MySQL dump completed"
+    log "MySQL dump file name: ${SQLFILE}"
+    #Add MySQL backup dump file to BACKUP list
+    BACKUP=(${BACKUP[*]} ${SQLFILE})
+fi
+
+### END OF MYSQL BACKUP ###
+
+
+### START OF TAR BACKUP ###
+
+log "Backup progress start"
+
+log "Tar backup file start"
+tar -zcPf ${TARFILE} ${BACKUP[*]}
+if [ $? -ne 0 ]; then
+    log "Tar backup file failed"
+    exit 1
+fi
+log "Tar backup file completed"
+
+# Encrypt tar file
+if ${ENCRYPTFLG}; then
+    log "Encrypt backup file start"
+    openssl enc -aes256 -in "${TARFILE}" -out "${TARFILE}.enc" -pass pass:"${BACKUPPASS}" -md sha1
+    log "Encrypt backup file completed"
+
+    # Delete unencrypted tar
+    log "Delete unencrypted tar file"
+    rm -f "${TARFILE}"
+fi
+
+log "Backup progress complete"
+if ${ENCRYPTFLG}; then
+    BACKUPSIZE=$(du -h ${TARFILE}.enc | cut -f1)
+    log "File name: ${TARFILE}.enc, File size: ${BACKUPSIZE}"
+else
+    BACKUPSIZE=$(du -h ${TARFILE} | cut -f1)
+    log "File name: ${TARFILE}, File size: ${BACKUPSIZE}"
+fi
+
+# Transfer file to Google Drive
+# If you want to install gdrive command, please visit website:
+# https://github.com/prasmussen/gdrive
+# of cause, you can use below command to install it
+# For x86_64: wget -O /usr/bin/gdrive http://dl.teddysun.com/files/gdrive-linux-x64; chmod +x /usr/bin/gdrive
+# For i386: wget -O /usr/bin/gdrive http://dl.teddysun.com/files/gdrive-linux-386; chmod +x /usr/bin/gdrive
+
+if [ ! "$(command -v "gdrive")" ]; then
+    log "gdrive is not installed"
+    log "File transfer skipped. please install it and try again"
+else
+    log "Tranferring tar backup to Google Drive"
+    if ${ENCRYPTFLG}; then
+        gdrive upload --no-progress ${TARFILE}.enc >> ${LOGFILE}
+    else
+        gdrive upload --no-progress ${TARFILE} >> ${LOGFILE}
+    fi
+    log "File transfer completed"
+fi
+
+### END OF TAR BACKUP ###
+
+
+ENDTIME=$(date +%s)
+DURATION=$((ENDTIME - STARTTIME))
+log "All done"
+log "Backup and transfer completed in ${DURATION} seconds"