Class: EY::SnapshotMinder
- Inherits:
-
Object
- Object
- EY::SnapshotMinder
- Defined in:
- lib/ey-flex/snapshot_minder.rb
Defined Under Namespace
Classes: Backend
Class Method Summary collapse
Instance Method Summary collapse
- #backoff(nth_time) ⇒ Object
-
#initialize(opts = {}) ⇒ SnapshotMinder
constructor
A new instance of SnapshotMinder.
- #list_snapshots ⇒ Object
- #snapshot_volumes ⇒ Object
Constructor Details
#initialize(opts = {}) ⇒ SnapshotMinder
Returns a new instance of SnapshotMinder.
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# File 'lib/ey-flex/snapshot_minder.rb', line 104 def initialize(opts={}) @opts = opts end |
Class Method Details
.backend ⇒ Object
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# File 'lib/ey-flex/snapshot_minder.rb', line 96 def self.backend @backend ||= Backend::Real.new end |
.enable_mock! ⇒ Object
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# File 'lib/ey-flex/snapshot_minder.rb', line 100 def self.enable_mock! @backend = Backend::Mock.new end |
.run(args) ⇒ Object
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# File 'lib/ey-flex/snapshot_minder.rb', line 60 def self.run(args) = {:command => :list_snapshots} # Build a parser for the command line arguments opts = OptionParser.new do |opts| opts.version = "0.0.1" opts. = "Usage: ey-snapshots [-flag] [argument]" opts.define_head "ey-snapshots: managing your snapshots..." opts.separator '*'*80 opts.on("-l", "--list-snapshots", "list snapshots") do [:command] = :list_snapshots end opts.on("-c", "--config CONFIG", "DEPRECATED, does nothing") do |config| STDERR.puts "WARNING: --config is DEPRECATED and has no effect" end opts.on("-i", "--instance-id ID", "DEPRECATED, does nothing") do |iid| STDERR.puts "WARNING: --instance-id is DEPRECATED and has no effect" end opts.on("--snapshot", "request a snapshot of the volumes attached to this instance") do [:command] = :snapshot_volumes end opts.on("-q", "--quiet", "Supress output to STDOUT") do [:quiet] = true end end opts.parse!(args) new().send([:command]) end |
Instance Method Details
#backoff(nth_time) ⇒ Object
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# File 'lib/ey-flex/snapshot_minder.rb', line 126 def backoff(nth_time) 60*nth_time + rand((60 / (nth_time+1)) + 5) #see tests end |
#list_snapshots ⇒ Object
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# File 'lib/ey-flex/snapshot_minder.rb', line 130 def list_snapshots snapshots = SnapshotMinder.backend.list say "#{snapshots.size} Snapshots available:" snapshots.each do |s| say "#{s.id} - #{s.volume} #{s.state} #{s.progress} #{s.created_at}" end end |
#snapshot_volumes ⇒ Object
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# File 'lib/ey-flex/snapshot_minder.rb', line 108 def snapshot_volumes retry_count = 0 begin SnapshotMinder.backend.snapshot say "Snapshot requested." rescue EY::InstanceAPIClient::Connection::UnexpectedStatus => e retry_count += 1 if retry_count <= 10 retry_in = backoff(retry_count) say "failed with #{e.inspect}, retrying in #{retry_in} seconds" SnapshotMinder.backend.wait(retry_in) retry else raise e end end end |