1VM::EC2::Instance::StatUes:e:rChCaonngter(i3b)uted PerlVDMo:c:uEmCe2n:t:aItnisotnance::State::Change(3)
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6 VM::EC2::Instance::State::Change - Represent an EC2 instance's change
7 in state.
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10 # find all stopped instances
11 @instances = $ec2->describe_instances(-filter=>{'instance-state-name'=>'stopped'});
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13 # start them
14 @state_change = $ec2->start_instances(@instances)
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16 foreach my $sc (@state_change) {
17 my $instanceId = $sc->instanceId;
18 my $currentState = $sc->currentState;
19 my $previousState = $sc->previousState;
20 }
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22 # poll till the first instance is running
23 sleep 2 until $state_change[0]->current_status eq 'running';
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26 This object represents a state change in an Amazon EC2 instance. It is
27 returned by VM::EC2 start_instances(), stop_instances(),
28 terminate_instances(), reboot_instances() and the corresponding
29 VM::EC2::Instance methods. In addition, this object is returned by
30 calls to VM::EC2::Instance->instanceState().
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33 These object methods are supported:
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35 instanceId -- The instanceId.
36 currentState -- The instanceId's current state AT THE TIME
37 THE STATECHANGE OBJECT WAS CREATED. One of
38 "terminated", "running", "stopped", "stopping",
39 "shutting-down".
40 previousState -- The instanceID's previous state AT THE TIME
41 THE STATECHANGE OBJECT WAS CREATED.
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43 Note that currentState and previousState return a
44 VM::EC2::Instance::State object, which provides both string-readable
45 forms and numeric codes representing the state.
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47 In addition, the method provides the following convenience method:
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49 $state = $state_change->current_status()
50 This method returns the current state of the instance. This is the
51 correct method to call if you are interested in knowing what the
52 instance is doing right now.
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54 STRING OVERLOADING
55 In a string context, the method will return the string representation
56 of currentState.
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59 VM::EC2 VM::EC2::Generic VM::EC2::State VM::EC2::Instance
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62 Lincoln Stein <lincoln.stein@gmail.com>.
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64 Copyright (c) 2011 Ontario Institute for Cancer Research
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66 This package and its accompanying libraries is free software; you can
67 redistribute it and/or modify it under the terms of the GPL (either
68 version 1, or at your option, any later version) or the Artistic
69 License 2.0. Refer to LICENSE for the full license text. In addition,
70 please see DISCLAIMER.txt for disclaimers of warranty.
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74perl v5.32.1 2021-01-27VM::EC2::Instance::State::Change(3)