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centreon-plugins/cloud/aws/cloudwatch/mode/discovery.pm

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#
# Copyright 2021 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package cloud::aws::cloudwatch::mode::discovery;
use base qw(centreon::plugins::mode);
use strict;
use warnings;
use JSON::XS;
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options);
bless $self, $class;
$options{options}->add_options(arguments => {
"service:s@" => { name => 'service' },
"prettify" => { name => 'prettify' },
});
$self->{services} = {
VPC => $self->can('discover_vpc'),
EC2 => $self->can('discover_ec2'),
RDS => $self->can('discover_rds'),
ELB => $self->can('discover_elb'),
VPN => $self->can('discover_vpn'),
KINESIS => $self->can('discover_kinesis_stream'),
DYNAMODB => $self->can('discover_dynamodb_table'),
APIGATEWAY => $self->can('discover_api'),
S3 => $self->can('discover_s3_bucket')
};
return $self;
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::init(%options);
if (!defined($self->{option_results}->{service}) || $self->{option_results}->{service} eq '') {
$self->{output}->add_option_msg(short_msg => "Need to specify --service option.");
$self->{output}->option_exit();
}
}
sub discover_vpc {
my (%options) = @_;
my @disco_data;
my $vpcs = $options{custom}->discovery(region => $options{region},
service => 'ec2', command => 'describe-vpcs');
foreach my $vpc (@{$vpcs->{Vpcs}}) {
next if (!defined($vpc->{VpcId}));
my %vpc;
$vpc{type} = "vpc";
$vpc{id} = $vpc->{VpcId};
$vpc{state} = $vpc->{State};
$vpc{cidr} = $vpc->{CidrBlock};
foreach my $tag (@{$vpc->{Tags}}) {
if ($tag->{Key} eq "Name" && defined($tag->{Value})) {
$vpc{name} = $tag->{Value};
}
push @{$vpc{tags}}, { key => $tag->{Key}, value => $tag->{Value} };
}
push @disco_data, \%vpc;
}
return @disco_data;
}
sub discover_ec2 {
my (%options) = @_;
my @disco_data;
my %asgs;
my $instances = $options{custom}->discovery(region => $options{region},
service => 'ec2', command => 'describe-instances');
foreach my $reservation (@{$instances->{Reservations}}) {
foreach my $instance (@{$reservation->{Instances}}) {
next if (!defined($instance->{InstanceId}));
my %asg;
$asg{type} = "asg";
my %ec2;
$ec2{type} = "ec2";
$ec2{id} = $instance->{InstanceId};
$ec2{state} = $instance->{State}->{Name};
$ec2{key_name} = $instance->{KeyName};
$ec2{private_ip} = $instance->{PrivateIpAddress};
$ec2{private_dns_name} = $instance->{PrivateDnsName};
$ec2{public_dns_name} = $instance->{PublicDnsName};
$ec2{instance_type} = $instance->{InstanceType};
$ec2{vpc_id} = $instance->{VpcId};
foreach my $tag (@{$instance->{Tags}}) {
if ($tag->{Key} eq "aws:autoscaling:groupName" && defined($tag->{Value})) {
$ec2{asg} = $tag->{Value};
next if (defined($asgs{$tag->{Value}}));
$asg{name} = $tag->{Value};
$asgs{$tag->{Value}} = 1;
}
if ($tag->{Key} eq "Name" && defined($tag->{Value})) {
$ec2{name} = $tag->{Value};
}
push @{$ec2{tags}}, { key => $tag->{Key}, value => $tag->{Value} };
}
push @disco_data, \%ec2;
push @disco_data, \%asg if (defined($asg{name}) && $asg{name} ne '');
}
}
return @disco_data;
}
sub discover_rds {
my (%options) = @_;
my @disco_data;
my $db_instances = $options{custom}->discovery(region => $options{region},
service => 'rds', command => 'describe-db-instances');
foreach my $db_instance (@{$db_instances->{DBInstances}}) {
next if (!defined($db_instance->{DbiResourceId}));
my %rds;
$rds{type} = "rds";
$rds{id} = $db_instance->{DbiResourceId};
$rds{name} = $db_instance->{DBInstanceIdentifier};
$rds{status} = $db_instance->{DBInstanceStatus};
$rds{storage_type} = $db_instance->{StorageType};
$rds{instance_class} = $db_instance->{DBInstanceClass};
$rds{availability_zone} = $db_instance->{AvailabilityZone};
$rds{vpc_id} = $db_instance->{DBSubnetGroup}->{VpcId};
push @disco_data, \%rds;
}
return @disco_data;
}
sub discover_elb {
my (%options) = @_;
my @disco_data;
my $load_balancers = $options{custom}->discovery(region => $options{region},
service => 'elb', command => 'describe-load-balancers');
foreach my $load_balancer (@{$load_balancers->{LoadBalancerDescriptions}}) {
next if (!defined($load_balancer->{LoadBalancerName}));
my %elb;
$elb{type} = "elb";
$elb{name} = $load_balancer->{LoadBalancerName};
$elb{dns_name} = $load_balancer->{DNSName};
$elb{availability_zones} = $load_balancer->{AvailabilityZones};
$elb{vpc_id} = $load_balancer->{VPCId};
push @disco_data, \%elb;
}
return @disco_data;
}
sub discover_vpn {
my (%options) = @_;
my @disco_data;
my $vpns = $options{custom}->discovery(region => $options{region},
service => 'ec2', command => 'describe-vpn-connections');
foreach my $connection (@{$vpns->{VpnConnections}}) {
next if (!defined($connection->{VpnConnectionId}));
my %vpn;
$vpn{type} = "vpn";
$vpn{id} = $connection->{VpnConnectionId};
$vpn{connection_type} = $connection->{Type};
$vpn{state} = $connection->{State};
$vpn{category} = $connection->{Category};
foreach my $tag (@{$connection->{Tags}}) {
if ($tag->{Key} eq "Name" && defined($tag->{Value})) {
$vpn{name} = $tag->{Value};
}
push @{$vpn{tags}}, { key => $tag->{Key}, value => $tag->{Value} };
}
push @disco_data, \%vpn;
}
return @disco_data;
}
sub discover_kinesis_stream {
my (%options) = @_;
my @disco_data;
my $streams = $options{custom}->discovery(region => $options{region},
service => 'kinesis', command => 'list-streams');
foreach my $stream (@{$streams->{StreamNames}}) {
my %stream;
$stream{type} = "kinesis_stream";
$stream{name} = $stream;
push @disco_data, \%stream;
}
return @disco_data;
}
sub discover_s3_bucket {
my (%options) = @_;
my @disco_data;
my $buckets = $options{custom}->discovery(region => $options{region},
service => 's3api', command => 'list-buckets');
foreach my $bucket (@{$buckets->{Buckets}}) {
my %bucket;
$bucket{type} = "s3_bucket";
$bucket{name} = $bucket->{Name};
$bucket{creation_date} = $bucket->{CreationDate};
push @disco_data, \%bucket;
}
return @disco_data;
}
sub discover_dynamodb_table {
my (%options) = @_;
my @disco_data;
my $tables = $options{custom}->discovery(region => $options{region},
service => 'dynamodb', command => 'list-tables');
foreach my $table (@{$tables->{TableNames}}) {
my %table;
$table{type} = "dynamodb_table";
$table{name} = $table;
push @disco_data, \%table;
}
return @disco_data;
}
sub discover_api {
my (%options) = @_;
my @disco_data;
my $apis = $options{custom}->discovery(region => $options{region},
service => 'apigateway', command => 'get-rest-apis');
foreach my $api (@{$apis->{items}}) {
my %api;
$api{id} = $api->{id};
$api{name} = $api->{name};
$api{description} = $api->{description};
$api{version} = $api->{version};
foreach my $type (@{$api->{endpointConfiguration}->{types}}) {
push @{$api{types}}, $type;
}
push @disco_data, \%api;
}
return @disco_data;
}
sub run {
my ($self, %options) = @_;
my @disco_data;
my $disco_stats;
$disco_stats->{start_time} = time();
foreach my $service (@{$self->{option_results}->{service}}) {
push @disco_data, $self->{services}->{uc($service)}->(custom => $options{custom},
region => $self->{option_results}->{region}) if (defined($self->{services}->{uc($service)}));
}
$disco_stats->{end_time} = time();
$disco_stats->{duration} = $disco_stats->{end_time} - $disco_stats->{start_time};
$disco_stats->{discovered_items} = @disco_data;
$disco_stats->{results} = \@disco_data;
my $encoded_data;
eval {
if (defined($self->{option_results}->{prettify})) {
$encoded_data = JSON::XS->new->utf8->pretty->encode($disco_stats);
} else {
$encoded_data = JSON::XS->new->utf8->encode($disco_stats);
}
};
if ($@) {
$encoded_data = '{"code":"encode_error","message":"Cannot encode discovered data into JSON format"}';
}
$self->{output}->output_add(short_msg => $encoded_data);
$self->{output}->display(nolabel => 1, force_ignore_perfdata => 1);
$self->{output}->exit();
}
1;
__END__
=head1 MODE
Resources discovery.
=over 8
=item B<--service>
Choose the service from which discover
resources (Can be: 'VPC', 'EC2', 'RDS',
'ELB', 'VPN') (Mandatory).
=item B<--prettify>
Prettify JSON output.
=back
=cut
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