The document discusses using Perl libraries to interact with cloud computing platforms like Amazon EC2 and Rackspace to launch and manage virtual servers and instances. It provides code examples for creating instances on EC2 and Rackspace using the Net::Amazon::EC2 and Net::RackSpace::CloudServers libraries, checking for instances to become active, and connecting to instances securely via SSH.

1. Nubilus Perl
Librerie Perl in the cloud

2. IaaS - PaaS - SaaS
2

3. IaaS - PaaS - SaaS
2

4. Amazon

5. require Net::Amazon::EC2;
my $ec2 = Net::Amazon::EC2->new(
AWSAccessKeyId => 'YOUR-AWS-KEY',
SecretAccessKey => 'YOUR-AWS-SECRET',
);

6. require Net::Amazon::EC2;
my $ec2 = Net::Amazon::EC2->new(
AWSAccessKeyId => 'YOUR-AWS-KEY',
SecretAccessKey => 'YOUR-AWS-SECRET',
);

8. my $res = $ec2->run_instances(
ImageId => 'ami-8c1fece5',
MinCount => 1,
MaxCount => 1,
SecurityGroup => 'quick-start-1',
InstanceType => 'm1.small',
);

9. Instance

10. my $res = $ec2->run_instances(
ImageId => 'ami-8c1fece5',
MinCount => 1,
MaxCount => 1,
SecurityGroup => 'quick-start-1',
InstanceType => 'm1.small',
);

11. Instance

12. Image Instance

13. Image Instance
#!/usr/bin/env perl
10715 gnome-terminal
use strict;
10719 _ gnome-pty-helper
use warnings;
10720 _ bash
use 5.012;
24910 _ bash
32549 _ bash
my $message = shift
27438 | _ perl prg.pl
|| 'whatever!';
27444 _ bash
while ('necessary') {
27462 | _ perl prg.pl hey you!
say $message;
27463 _ bash
sleep 1;
27480 | _ perl prg.pl another
}

14. my $res = $ec2->run_instances(
ImageId => 'ami-8c1fece5',
MinCount => 1,
MaxCount => 1,
SecurityGroup => 'quick-start-1',
InstanceType => 'm1.small',
);

15. Image Instance
#!/usr/bin/env perl
10715 gnome-terminal
use strict;
10719 _ gnome-pty-helper
use warnings;
10720 _ bash
use 5.012;
24910 _ bash
32549 _ bash
my $message = shift
27438 | _ perl prg.pl
|| 'whatever!';
27444 _ bash
while ('necessary') {
27462 | _ perl prg.pl hey you!
say $message;
27463 _ bash
sleep 1;
27480 | _ perl prg.pl another
}

16. Image Instance
Type

17. my $res = $ec2->run_instances(
ImageId => 'ami-8c1fece5',
MinCount => 1,
MaxCount => 1,
SecurityGroup => 'quick-start-1',
InstanceType => 'm1.small',
);

19. RUNNING_CHECK:
while ('necessary') {
my $reservations
= $ec2->describe_instances() || [];
foreach my $res (@$reservations) {
foreach my $instance ($res->instances_set()) {
if ($instance->{instance_state}{name} eq 'running') {
say 'active, IP: ', $instance->{ip_address};
last RUNNING_CHECK;
}
}
}
sleep 1;
}

20. RUNNING_CHECK:
while ('necessary') {
my $reservations
= $ec2->describe_instances() || [];
foreach my $res (@$reservations) {
foreach my $instance ($res->instances_set()) {
if ($instance->{instance_state}{name} eq 'running') {
say 'active, IP: ', $instance->{ip_address};
last RUNNING_CHECK;
}
}
}
sleep 1;
}

21. Ora?

22. Beh... PRIMA...

25. Sì, SSH

26. my $res = $ec2->run_instances( RUNNING_CHECK:
ImageId => 'ami-8c1fece5', while ('necessary') {
MinCount => 1, my $reservations
MaxCount => 1, = $ec2->describe_instances() || [];
SecurityGroup => 'quick-start-1',
InstanceType => 'm1.small', foreach my $res (@$reservations) {
); #...
my $instance_id = $res->instance_id();
$ec2->terminate_instances(
InstanceId => $instance_id,
);

27. my $reservations
= $ec2->describe_instances() || [];
foreach my $res (@$reservations) {
foreach my $instance ($res->instances_set()) {
my $state = $instance->{instance_state}{name};
# ... utilizzare $state...
}
}

28. RackSpace

29. require Net::RackSpace::CloudServers;
my $cs = Net::RackSpace::CloudServers->new(
user => 'myusername',
key => 'mysecretkey',
location => 'UK',
);

30. require Net::RackSpace::CloudServers;
my $cs = Net::RackSpace::CloudServers->new(
user => 'YOUR-CS-USERNAME',
key => 'YOUR-CS-SECRETKEY',
location => 'UK',
);

32. require Net::RackSpace::CloudServers;
my $cs = Net::RackSpace::CloudServers->new(
user => 'YOUR-CS-USERNAME',
key => 'YOUR-CS-SECRETKEY',
location => 'UK',
);

34. my $server = Net::RackSpace::CloudServers::Server->new(
cloudservers => $cs, # N::R::CloudServers instance
name => 'my-instance',
imageid => 4, # Debian 5.0 (lenny)
flavorid => 1, # basic server, 256 MB RAM
);

35. Image Instance
Type

36. Image Server
Flavor

37. Ancora niente

38. my $real_server = $server->create_server();
my $root_pass = $real_server->adminpass();

39. Ora sì

41. my $id = $real_server->id();
RUNNING_CHECK:
while ('necessary') {
my $instance = $cs->get_server($id);
say 'completion status: ', $server->progress();
if ($server->status eq 'ACTIVE') {
say 'active, IP: ', $instance->public_address()->[0];
last RUNNING_CHECK;
}
sleep 1;
}

42. my $id = $real_server->id();
RUNNING_CHECK:
while ('necessary') {
my $instance = $cs->get_server($id);
say 'completion status: ', $server->progress();
if ($server->status eq 'ACTIVE') {
say 'active, IP: ', $instance->public_address()->[0];
last RUNNING_CHECK;
}
sleep 1;
}

43. Ora?
SSH con $root_pass

44. O anche...

46. Sì... root password
via email

47. my $server = Net::RackSpace::CloudServers::Server->new(
cloudservers => $cs, # N::R::CloudServers instance
name => 'my-instance',
imageid => 4, # Debian 5.0 (lenny)
flavorid => 1, # basic server, 256 MB RAM
personality => [
{
path => '/root/.ssh/authorized_keys2',
contents => <<END_OF_BASE64
SUlKckNyZWIxcU5NcGxuS1BIaFBBdFIxL2RMUVJ6SnNzSnNxTWUwRENlbXp5NlVMZ0g3Uy9seWZU
...
anExQWhSaE1zK0FHaDZDL01aV1N4QStZNmhqd2wwMFozSVl1R3AgaW1wb3J0ZWQtb3BlbnNzaC1r
ZXkK
END_OF_BASE64
},
],
);

48. Chiave SSH

49. $real_server->delete();

50. Adieu

51. 46