(plugin) cloud::aws::elb::network - add health service discovery (#3604)

* initial modification for aws elb service disco

* simplify listtargetgroup for elb health check

* adding missing part in run sub

* ident and fix sprintf

centreon-plugins/cloud/aws/elb/network/mode/listhealthtargetgroups.pm

@@ -0,0 +1,144 @@
+
+#
+# Copyright 2022 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::elb::network::mode::listhealthtargetgroups;
+
+use base qw(centreon::plugins::mode);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+
+    $options{options}->add_options(arguments => {
+        'elb-name:s'    => { name => 'elb_name' }
+    });
+
+    return $self;
+}
+
+sub set_options {
+    my ($self, %options) = @_;
+
+    $self->{option_results} = $options{option_results};
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::init(%options);
+
+    $self->{elb_name} = $self->{option_results}->{elb_name};
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    $self->{all_dimensions} = $options{custom}->cloudwatch_list_metrics(
+        namespace => 'AWS/NetworkELB',
+        metric    => 'HealthyHostCount'
+    );
+}
+
+sub run {
+    my ($self, %options) = @_;
+
+    $self->manage_selection(%options);
+    
+    my @dimensions;
+    
+    foreach my $dimensions (@{$self->{all_dimensions}}) {
+        my %health_dimensions;
+        foreach my $dimension_name (@{$dimensions->{Dimensions}}) {
+            $health_dimensions{availability_zone} = $dimension_name->{Value} if ($dimension_name->{Name} =~ m/AvailabilityZone/);
+            $health_dimensions{elb_name} = $dimension_name->{Value} if ($dimension_name->{Name} =~ m/LoadBalancer/);
+            $health_dimensions{target_group} = $dimension_name->{Value} if ($dimension_name->{Name} =~ m/TargetGroup/);
+        }
+        $health_dimensions{availability_zone} = defined($health_dimensions{availability_zone}) ? $health_dimensions{availability_zone} : '';
+        next if ($health_dimensions{elb_name} ne $self->{elb_name});
+        push @dimensions, \%health_dimensions;
+    }
+
+    foreach my $dimensions (@dimensions){
+        $self->{output}->output_add(
+            long_msg => sprintf("[TargetGroup = %s][Elb = %s][AvailabilityZone = %s]", 
+            $dimensions->{target_group},
+            $dimensions->{elb_name},
+            $dimensions->{availability_zone})
+        );
+    }
+
+    $self->{output}->output_add(
+        severity => 'OK',
+        short_msg => 'Target-groups list:'
+    );
+    $self->{output}->display(nolabel => 1, force_ignore_perfdata => 1, force_long_output => 1);
+    $self->{output}->exit();
+}
+
+sub disco_format {
+    my ($self, %options) = @_;
+
+    $self->{output}->add_disco_format(elements => ['TargetGroup', 'Elb', 'AvailabilityZone']);
+}
+
+sub disco_show {
+    my ($self, %options) = @_;
+
+    $self->manage_selection(%options);
+
+    my @dimensions;
+    
+    foreach my $dimensions (@{$self->{all_dimensions}}) {
+        my %health_dimensions;
+        foreach my $dimension_name (@{$dimensions->{Dimensions}}) {
+            $health_dimensions{availability_zone} = $dimension_name->{Value} if ($dimension_name->{Name} =~ m/AvailabilityZone/);
+            $health_dimensions{elb_name} = $dimension_name->{Value} if ($dimension_name->{Name} =~ m/LoadBalancer/);
+            $health_dimensions{target_group} = $dimension_name->{Value} if ($dimension_name->{Name} =~ m/TargetGroup/);          
+        }
+        $health_dimensions{availability_zone} = defined($health_dimensions{availability_zone}) ? $health_dimensions{availability_zone} : '';
+        next if ($health_dimensions{elb_name} ne $self->{elb_name});
+        push @dimensions, \%health_dimensions;
+    }
+
+    foreach my $dimensions (@dimensions){
+        $self->{output}->add_disco_entry(
+            Elb => $dimensions->{elb_name},
+            AvailabilityZone => $dimensions->{availability_zone},
+            TargetGroup => $dimensions->{target_group}
+        );
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+List AWS target groups for a given ELB with --elb-name parameter.
+
+=over 8
+
+=back
+
+=cut

centreon-plugins/cloud/aws/elb/network/plugin.pm

@@ -31,8 +31,9 @@ sub new {
 
     $self->{version} = '0.1';
     %{ $self->{modes} } = (
-        'discovery'             => 'cloud::aws::elb::network::mode::discovery',
-        'targets-health'        => 'cloud::aws::elb::network::mode::targetshealth',
+        'discovery'                 => 'cloud::aws::elb::network::mode::discovery',
+        'targets-health'            => 'cloud::aws::elb::network::mode::targetshealth',
+        'list-health-target-groups' => 'cloud::aws::elb::network::mode::listhealthtargetgroups'
     );
 
     $self->{custom_modes}{paws} = 'cloud::aws::custom::paws';