-
Notifications
You must be signed in to change notification settings - Fork 0
/
backup.js
148 lines (134 loc) · 3.46 KB
/
backup.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
var sys = require( 'sys' ),
exec = require( 'child_process' ).exec,
fs = require( 'fs' ),
AWS = require( 'aws-sdk' ),
child,
date = Date.parse( new Date() );
//loading AWS config
AWS.config.loadFromPath( __dirname + '/mapnik/aws-config.json' );
var s3 = new AWS.S3();
child = exec( "pg_dump -C rio | gzip > " + date + ".gz", function ( error, stdout, stderr )
{
if( error !== null )
{
console.log( 'exec error: ' + error );
}
else
{
s3_upload( date + ".gz" );
}
});
function s3_upload( fileName )
{
// File
var filePath = './' + fileName,
fileKey = 'backup/' + fileName,
buffer = fs.readFileSync( './' + filePath );
// S3 Upload options
var bucket = 'imagine-rio';
// Upload
var startTime = new Date(),
partNum = 0,
partSize = 1024 * 1024 * 5,
numPartsLeft = Math.ceil( buffer.length / partSize ),
maxUploadTries = 3,
multiPartParams = {
Bucket : bucket,
Key : fileKey,
ContentType : 'application/pdf'
},
multipartMap = {
Parts: []
};
function completeMultipartUpload( s3, doneParams )
{
s3.completeMultipartUpload( doneParams, function( err, data )
{
if( err )
{
console.log( "An error occurred while completing the multipart upload" );
console.log( err );
}
else
{
var delta = ( new Date() - startTime ) / 1000;
console.log( 'Completed upload in', delta, 'seconds' );
console.log( 'Final upload data:', data );
}
});
}
function uploadPart( s3, multipart, partParams, tryNum )
{
var tryNum = tryNum || 1;
s3.uploadPart( partParams, function( multiErr, mData )
{
if( multiErr )
{
console.log( 'multiErr, upload part error:', multiErr );
if( tryNum < maxUploadTries )
{
console.log( 'Retrying upload of part: #', partParams.PartNumber );
uploadPart( s3, multipart, partParams, tryNum + 1 );
}
else
{
console.log( 'Failed uploading part: #', partParams.PartNumber );
}
return;
}
multipartMap.Parts[ this.request.params.PartNumber - 1 ] = {
ETag : mData.ETag,
PartNumber : Number( this.request.params.PartNumber )
};
console.log( "Completed part", this.request.params.PartNumber );
console.log( 'mData', mData );
if( --numPartsLeft > 0 ) return; // complete only when all parts uploaded
var doneParams = {
Bucket : bucket,
Key : fileKey,
MultipartUpload : multipartMap,
UploadId : multipart.UploadId
};
console.log( "Completing upload..." );
completeMultipartUpload( s3, doneParams );
fs.unlink( filePath, function( err )
{
if( err )
{
console.log( err )
}
else
{
console.log( "File deleted!" );
}
});
});
}
// Multipart
console.log( "Creating multipart upload for:", fileKey );
s3.createMultipartUpload( multiPartParams, function( mpErr, multipart )
{
if( mpErr )
{
console.log( 'Error!', mpErr );
return;
}
console.log( "Got upload ID", multipart.UploadId );
// Grab each partSize chunk and upload it as a part
for( var rangeStart = 0; rangeStart < buffer.length; rangeStart += partSize )
{
partNum++;
var end = Math.min( rangeStart + partSize, buffer.length ),
partParams = {
Body : buffer.slice( rangeStart, end ),
Bucket : bucket,
Key : fileKey,
PartNumber : String( partNum ),
UploadId : multipart.UploadId
};
// Send a single part
console.log( 'Uploading part: #', partParams.PartNumber, ', Range start:', rangeStart );
uploadPart( s3, multipart, partParams );
}
});
}