1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86
87. 87
88. 88
89. 89
90. 90
91. 91
92. 92
93. 93
94. 94

#!/usr/bin/env bash

# What should be backuped

# Directories: space-separated list
DIRS_TO_BACKUP="/var/www "

# MySQL
MYSQL_TO_BACKUP=0 # this flag means MySQL DB should be backuped
# MySQL root credentials
MYSQL_USER=root 
MYSQL_PASSWORD="1111"

# PostgreSQL
# One can run pg_dumpall under postgres user.
POSTGRES_TO_BACKUP=0 # this flag means PostgreSQL DB should be backuped

# Email address for sending reports
ADMIN_EMAIL=

# AWS user credentials
S3_ACCESS_KEY=
S3_SECRET_KEY=
S3_BUCKET=

# !!! DON'T EDIT BELOW !!!

CURRENT_TIME=`date +%F`
BACKUP_HOSTNAME=`cat /etc/hostname`
SCRIPT_DIR=`dirname $(readlink -f $0)`
BACKUP_BASE_DIR=$(mktemp -d)

prepareMySQLdb() {
    mkdir -p $BACKUP_BASE_DIR/mysql/
    mysqldump -u$MYSQL_USER -p$MYSQL_PASSWORD --all-databases > $BACKUP_BASE_DIR/mysql/mysql.dump
}

preparePostgreSQLdb() {
    mkdir -p $BACKUP_BASE_DIR/postgres/
    sudo -u postgres /usr/bin/pg_dumpall > $BACKUP_BASE_DIR/postgres/postgres.db
}

prepareFiles() {
    for f in $DIRS_TO_BACKUP; do
        mkdir -p $BACKUP_BASE_DIR/files/$f
        cp -R $f/* $BACKUP_BASE_DIR/files/$f
    done 
}

backup() {
    week=$(date +%U)
    weekday=$(date +%u)

    cd $BACKUP_BASE_DIR
    tar -cvf $BACKUP_BASE_DIR/$BACKUP_HOSTNAME-$CURRENT_TIME.tar ./*
    gzip $BACKUP_BASE_DIR/$BACKUP_HOSTNAME-$CURRENT_TIME.tar
    cd $SCRIPT_DIR
}

upload() {
    echo -n "$S3_SECRET_KEY" > $BACKUP_BASE_DIR/secret.key
    $SCRIPT_DIR/s3-put -S -k $S3_ACCESS_KEY -s $BACKUP_BASE_DIR/secret.key -T $BACKUP_BASE_DIR/$BACKUP_HOSTNAME-$CURRENT_TIME.tar.gz /$S3_BUCKET/$BACKUP_HOSTNAME/$BACKUP_HOSTNAME-$CURRENT_TIME.tar.gz > $BACKUP_BASE_DIR/upload.result
    cat $BACKUP_BASE_DIR/upload.result | grep "<Error>"
    if [[ $? == 0 ]]; then
        return 1
    else
        return 0
    fi
}


clean() {
    rm -rf $BACKUP_BASE_DIR
}

# $1 - msg
# $2 - procedure
testError() {
    if [[ $? != 0 ]]; then
        echo $1
        mail $ADMIN_EMAIL -s "BACKUP ERROR ($BACKUP_HOSTNAME)" < <(echo -e "Error occured at $2\n\nDetails:\n$(echo $1)")
        clean
        exit
    fi
}

if [ "$(ls -A $BACKUP_BASE_DIR 2>/dev/null)" ]; then
    $? = 1
    testError "$BACKUP_BASE_DIR is not empty" "Testing emptiness of BACKUP_BASE_DIR"
fi

if [[ $DIRS_TO_BACKUP != "" ]]; then
    res=$(prepareFiles 2>&1)
    testError "$res" "prepareFiles()"