Class: NoopBackup::Stores::S3

Inherits:
Store
  • Object
show all
Defined in:
lib/noop_backup/stores/s3.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ S3

Returns a new instance of S3.



7
8
9
10
11
12
 
# File 'lib/noop_backup/stores/s3.rb', line 7

def initialize
  @bucket = ENV["AWS_S3_BUCKET"]
  @region = ENV["AWS_REGION"]
  @access_key_id = ENV["AWS_ACCESS_KEY_ID"]
  @secret_access_key = ENV["AWS_SECRET_ACCESS_KEY"]
end

Instance Attribute Details

#access_key_id ⇒ Object

Returns the value of attribute access_key_id.



5
6
7
 
# File 'lib/noop_backup/stores/s3.rb', line 5

def access_key_id
  @access_key_id
end

#bucket ⇒ Object

Returns the value of attribute bucket.



5
6
7
 
# File 'lib/noop_backup/stores/s3.rb', line 5

def bucket
  @bucket
end

#region ⇒ Object

Returns the value of attribute region.



5
6
7
 
# File 'lib/noop_backup/stores/s3.rb', line 5

def region
  @region
end

#secret_access_key ⇒ Object

Returns the value of attribute secret_access_key.



5
6
7
 
# File 'lib/noop_backup/stores/s3.rb', line 5

def secret_access_key
  @secret_access_key
end

Instance Method Details

#backup!(key, stream) ⇒ Object

Prefer Aws::S3::TransferManager for streaming uploads if available. Aws::S3::Resource.upload_stream is deprecated in newer versions



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
 
# File 'lib/noop_backup/stores/s3.rb', line 16

def backup!(key, stream)
  started = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  bytes = 0

  validate!

  upload_attempted = true

  if defined?(Aws::S3::TransferManager)
    manager = Aws::S3::TransferManager.new(client: s3_client)

    manager.upload_stream(bucket:, key: key, part_size: 8 * 1024 * 1024, thread_count: 2) do |s3_stream|
      bytes = IO.copy_stream(stream, s3_stream)
    end
  else
    object = Aws::S3::Resource.new(client: s3_client).bucket(bucket).object(key)

    object.upload_stream(part_size: 8 * 1024 * 1024, thread_count: 2) do |s3_stream|
      bytes = IO.copy_stream(stream, s3_stream)
    end
  end

  duration = Process.clock_gettime(Process::CLOCK_MONOTONIC) - started

  if config.min_size && bytes < config.min_size.to_i
    raise NoopBackup::DumpTooSmallError, "backup too small: #{NoopBackup.utils.human_size(bytes)} < min_size (#{NoopBackup.utils.human_size(config.min_size)})"
  end

  Result.new(success: true, store: :s3, bytes:, key:, duration:)
rescue => e
  duration = Process.clock_gettime(Process::CLOCK_MONOTONIC) - started

  cleanup!(key) if upload_attempted

  Result.new(success: false, error: e, store: :s3, bytes:, key:, duration:)
end

#cleanup!(key) ⇒ Object 



62
63
64
65
66
 
# File 'lib/noop_backup/stores/s3.rb', line 62

def cleanup!(key)
  s3_client.delete_object(bucket:, key: key)
rescue => e
  warn "Failed to clean up partial upload #{key}: #{e.message}"
end

#validate! ⇒ Object

Raises:



53
54
55
56
57
58
59
60
 
# File 'lib/noop_backup/stores/s3.rb', line 53

def validate!
  raise NoopBackup::ConfigurationError, "bucket is not configured" if bucket.to_s.empty?

  if access_key_id.to_s.empty? != secret_access_key.to_s.empty?
    raise NoopBackup::ConfigurationError,
      "access_key_id and secret_access_key must both be set, or both left blank to use the default AWS credential chain"
  end
end