diff --git a/cloud/google/gcp/compute/computeengine/mode/cpu.pm b/cloud/google/gcp/compute/computeengine/mode/cpu.pm
new file mode 100644
index 000000000..ddec5ae43
--- /dev/null
+++ b/cloud/google/gcp/compute/computeengine/mode/cpu.pm
@@ -0,0 +1,242 @@
+#
+# Copyright 2019 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::google::gcp::compute::computeengine::mode::cpu;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+use cloud::google::gcp::custom::misc;
+
+sub prefix_metric_output {
+    my ($self, %options) = @_;
+    
+    return "Instance '" . $options{instance_value}->{display} . "' " . $options{instance_value}->{stat} . " ";
+}
+
+sub custom_metric_calc {
+    my ($self, %options) = @_;
+    
+    $self->{result_values}->{stat} = $options{new_datas}->{$self->{instance} . '_stat'};
+    $self->{result_values}->{metric} = $options{extra_options}->{metric};
+    $self->{result_values}->{metric_name} = $options{extra_options}->{metric_name};
+    $self->{result_values}->{metric_label} = $options{extra_options}->{metric_label};
+    $self->{result_values}->{metric_perf} = $options{extra_options}->{metric_perf};
+    $self->{result_values}->{value} = $options{new_datas}->{$self->{instance} . '_' . $self->{result_values}->{metric} . '_' . $self->{result_values}->{stat}} * 100;
+    $self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
+    return 0;
+}
+
+sub custom_metric_threshold {
+    my ($self, %options) = @_;
+
+    my $exit = $self->{perfdata}->threshold_check(
+        value => $self->{result_values}->{value},
+        threshold => [ { label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'critical' },
+                       { label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'warning' } ]
+    );
+    return $exit;
+}
+
+sub custom_usage_perfdata {
+    my ($self, %options) = @_;
+
+    my $extra_label = '';
+    $extra_label = '_' . lc($self->{result_values}->{display}) if (!defined($options{extra_instance}) || $options{extra_instance} != 0);
+
+    $self->{output}->perfdata_add(
+        label => $self->{result_values}->{metric_perf} . "_" . $self->{result_values}->{stat} . $extra_label,
+        unit => '%',
+        value => sprintf("%.2f", $self->{result_values}->{value}),
+        warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        min => 0, max => 100
+    );
+}
+
+sub custom_usage_output {
+    my ($self, %options) = @_;
+    
+    my $msg = sprintf("%s: %.2f%%", $self->{result_values}->{metric_name}, $self->{result_values}->{value});
+    return $msg;
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+    
+    $self->{maps_counters_type} = [
+        { name => 'metric', type => 1, cb_prefix_output => 'prefix_metric_output',
+          message_multiple => "All CPU metrics are ok", skipped_code => { -10 => 1 } },
+    ];
+
+    foreach my $aggregation ('minimum', 'maximum', 'average', 'total') {
+        foreach my $metric ('instance/cpu/utilization') {
+            my $metric_label = cloud::google::gcp::custom::misc::format_metric_label(metric => $metric, remove => 'instance/');
+            my $metric_perf = cloud::google::gcp::custom::misc::format_metric_perf(metric => $metric, remove => 'instance/');
+            my $metric_name = cloud::google::gcp::custom::misc::format_metric_name(metric => $metric, remove => 'instance/');
+            my $entry = { label => $metric_label . '-' . $aggregation, set => {
+                                key_values => [ { name => $metric . '_' . $aggregation }, { name => 'display' }, { name => 'stat' } ],
+                                closure_custom_calc => $self->can('custom_metric_calc'),
+                                closure_custom_calc_extra_options => { metric_perf => $metric_perf,
+                                    metric_label => $metric_label, metric_name => $metric_name, metric => $metric },
+                                closure_custom_output => $self->can('custom_usage_output'),
+                                closure_custom_perfdata => $self->can('custom_usage_perfdata'),
+                                closure_custom_threshold_check => $self->can('custom_metric_threshold'),
+                            }
+                        };
+            push @{$self->{maps_counters}->{metric}}, $entry;
+        }
+        foreach my $metric ('instance/cpu/reserved_cores') {
+            my $metric_label = cloud::google::gcp::custom::misc::format_metric_label(metric => $metric, remove => 'instance/');
+            my $metric_perf = cloud::google::gcp::custom::misc::format_metric_perf(metric => $metric, remove => 'instance/');
+            my $metric_name = cloud::google::gcp::custom::misc::format_metric_name(metric => $metric, remove => 'instance/');
+            my $entry = { label => $metric_label . '-' . $aggregation, set => {
+                                key_values => [ { name => $metric . '_' . $aggregation }, { name => 'display' }, { name => 'stat' } ],
+                                output_template => $metric_name . ': %.2f',
+                                perfdatas => [
+                                    { label => $metric_perf . '_' . $aggregation, value => $metric . '_' . $aggregation . '_absolute', 
+                                      template => '%.2f', unit => '', label_extra_instance => 1, instance_use => 'display_absolute',
+                                      min => 0 },
+                                ],
+                            }
+                        };
+            push @{$self->{maps_counters}->{metric}}, $entry;
+        }
+    }
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments => {
+        "instance:s@"       => { name => 'instance' },
+        "filter-metric:s"   => { name => 'filter_metric' },
+    });
+    
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::check_options(%options);
+
+    if (!defined($self->{option_results}->{instance})) {
+        $self->{output}->add_option_msg(short_msg => "Need to specify --instance <name>.");
+        $self->{output}->option_exit();
+    }
+    
+    $self->{gcp_instance} = $self->{option_results}->{instance};
+    $self->{gcp_timeframe} = defined($self->{option_results}->{timeframe}) ? $self->{option_results}->{timeframe} : 900;
+    $self->{gcp_aggregations} = ['average'];
+    if (defined($self->{option_results}->{aggregation})) {
+        $self->{gcp_aggregations} = [];
+        foreach my $stat (@{$self->{option_results}->{aggregation}}) {
+            if ($stat ne '') {
+                push @{$self->{gcp_aggregations}}, $stat;
+            }
+        }
+    }
+
+    foreach my $metric ('instance/cpu/utilization', 'instance/cpu/reserved_cores') {
+        next if (defined($self->{option_results}->{filter_metric}) && $self->{option_results}->{filter_metric} ne ''
+            && $metric !~ /$self->{option_results}->{filter_metric}/);
+
+        push @{$self->{gcp_metrics}}, $metric;
+    }
+
+    $self->{gcp_api} = "compute.googleapis.com";
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $metric_results;
+    foreach my $instance (@{$self->{gcp_instance}}) {
+        foreach my $metric (@{$self->{gcp_metrics}}) {
+            ($metric_results, undef) = $options{custom}->gcp_get_metrics(
+                instance => $instance,
+                metric => $metric,
+                api => $self->{gcp_api},
+                aggregations => $self->{gcp_aggregations},
+                timeframe => $self->{gcp_timeframe},
+            );
+
+            foreach my $aggregation (@{$self->{gcp_aggregations}}) {
+                next if (!defined($metric_results->{$metric}->{lc($aggregation)}) && !defined($self->{option_results}->{zeroed}));
+
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{display} = $metric_results->{labels}->{instance_name};
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{stat} = lc($aggregation);
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{$metric . "_" . lc($aggregation)} = defined($metric_results->{$metric}->{lc($aggregation)}) ? $metric_results->{$metric}->{lc($aggregation)} : 0;
+            }
+        }
+    }
+
+    if (scalar(keys %{$self->{metric}}) <= 0) {
+        $self->{output}->add_option_msg(short_msg => 'No metrics. Check your options or use --zeroed option to set 0 on undefined values');
+        $self->{output}->option_exit();
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check Compute Engine instances CPU metrics.
+
+Example:
+
+perl centreon_plugins.pl --plugin=cloud::google::gcp::compute::computeengine::plugin --custommode=api --mode=cpu
+--instance=mycomputeinstance --filter-metric='utilization' --aggregation='average'
+--critical-cpu-utilization-average='10' --verbose
+
+Default aggregation: 'average' / All aggregations are valid.
+
+=over 8
+
+=item B<--instance>
+
+Set instance name (Required).
+
+=item B<--filter-metric>
+
+Filter metrics (Can be: 'instance/cpu/utilization',
+'instance/cpu/reserved_cores') (Can be a regexp).
+
+=item B<--warning-$metric$-$aggregation$>
+
+Thresholds warning ($metric$ can be: 'cpu-utilization',
+'cpu-reserved-cores', $aggregation$ can be: 'minimum',
+'maximum', 'average', 'total').
+
+=item B<--critical-$metric$-$aggregation$>
+
+Thresholds critical ($metric$ can be: 'cpu-utilization',
+'cpu-reserved-cores', $aggregation$ can be: 'minimum',
+'maximum', 'average', 'total').
+
+=back
+
+=cut
diff --git a/cloud/google/gcp/compute/computeengine/mode/diskio.pm b/cloud/google/gcp/compute/computeengine/mode/diskio.pm
new file mode 100644
index 000000000..d583b3175
--- /dev/null
+++ b/cloud/google/gcp/compute/computeengine/mode/diskio.pm
@@ -0,0 +1,297 @@
+#
+# Copyright 2019 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::google::gcp::compute::computeengine::mode::diskio;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+use cloud::google::gcp::custom::misc;
+
+sub prefix_metric_output {
+    my ($self, %options) = @_;
+    
+    return "Instance '" . $options{instance_value}->{display} . "' " . $options{instance_value}->{stat} . " ";
+}
+
+sub custom_metric_calc {
+    my ($self, %options) = @_;
+    
+    $self->{result_values}->{stat} = $options{new_datas}->{$self->{instance} . '_stat'};
+    $self->{result_values}->{metric_perf} = $options{extra_options}->{metric_perf};
+    $self->{result_values}->{metric_label} = $options{extra_options}->{metric_label};
+    $self->{result_values}->{metric_name} = $options{extra_options}->{metric_name};
+    $self->{result_values}->{metric} = $options{extra_options}->{metric};
+    $self->{result_values}->{timeframe} = $options{new_datas}->{$self->{instance} . '_timeframe'};
+    $self->{result_values}->{value} = $options{new_datas}->{$self->{instance} . '_' . $self->{result_values}->{metric} . '_' . $self->{result_values}->{stat}};
+    $self->{result_values}->{value_per_sec} = $self->{result_values}->{value} / $self->{result_values}->{timeframe};
+    $self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
+    return 0;
+}
+
+sub custom_usage_threshold {
+    my ($self, %options) = @_;
+
+    my $exit = $self->{perfdata}->threshold_check(
+        value => defined($self->{instance_mode}->{option_results}->{per_sec}) ?  $self->{result_values}->{value_per_sec} : $self->{result_values}->{value},
+        threshold => [ { label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'critical' },
+                       { label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'warning' } ]
+    );
+    return $exit;
+}
+
+sub custom_usage_perfdata {
+    my ($self, %options) = @_;
+
+    my $extra_label = '';
+    $extra_label = '_' . lc($self->{result_values}->{display}) if (!defined($options{extra_instance}) || $options{extra_instance} != 0);
+
+    $self->{output}->perfdata_add(
+        label => $self->{result_values}->{metric_perf} . "_" . $self->{result_values}->{stat} . $extra_label,
+        unit => defined($self->{instance_mode}->{option_results}->{per_sec}) ? 'B/s' : 'B',
+        value => sprintf("%d", defined($self->{instance_mode}->{option_results}->{per_sec}) ? $self->{result_values}->{value_per_sec} : $self->{result_values}->{value}),
+        warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        min => 0
+    );
+}
+
+sub custom_usage_output {
+    my ($self, %options) = @_;
+    my $msg = "";
+
+    if (defined($self->{instance_mode}->{option_results}->{per_sec})) {
+        my ($value, $unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{value_per_sec});
+        $msg = $self->{result_values}->{metric_name}  . ": " . $value . $unit . "/s"; 
+    } else {
+        my ($value, $unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{value});
+        $msg = $self->{result_values}->{metric_name}  . ": " . $value . $unit;
+    }
+    return $msg;
+}
+
+sub custom_ops_threshold {
+    my ($self, %options) = @_;
+
+    my $exit = $self->{perfdata}->threshold_check(
+        value => $self->{result_values}->{value},
+        threshold => [ { label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'critical' },
+                       { label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'warning' } ]
+    );
+    return $exit;
+}
+
+sub custom_ops_perfdata {
+    my ($self, %options) = @_;
+
+    my $extra_label = '';
+    $extra_label = '_' . lc($self->{result_values}->{display}) if (!defined($options{extra_instance}) || $options{extra_instance} != 0);
+
+    $self->{output}->perfdata_add(
+        label => $self->{result_values}->{metric_perf} . "_" . $self->{result_values}->{stat} . $extra_label,
+        unit => 'ops/s',
+        value => sprintf("%.2f", $self->{result_values}->{value}),
+        warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        min => 0
+    );
+}
+
+sub custom_ops_output {
+    my ($self, %options) = @_;
+
+    my $msg = sprintf("%s: %.2f ops/s", $self->{result_values}->{metric_name}, $self->{result_values}->{value});
+ 
+    return $msg;
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+    
+    $self->{maps_counters_type} = [
+        { name => 'metric', type => 1, cb_prefix_output => 'prefix_metric_output', message_multiple => "All disk metrics are ok", skipped_code => { -10 => 1 } },
+    ];
+
+    foreach my $aggregation ('minimum', 'maximum', 'average', 'total') {
+        foreach my $metric ('instance/disk/read_bytes_count', 'instance/disk/throttled_read_bytes_count',
+            'instance/disk/write_bytes_count', 'instance/disk/throttled_write_bytes_count') {
+            my $metric_label = cloud::google::gcp::custom::misc::format_metric_label(metric => $metric, remove => 'instance/');
+            my $metric_perf = cloud::google::gcp::custom::misc::format_metric_perf(metric => $metric, remove => 'instance/');
+            my $metric_name = cloud::google::gcp::custom::misc::format_metric_name(metric => $metric, remove => 'instance/');
+            my $entry = { label => $metric_label . '-' . $aggregation, set => {
+                                key_values => [ { name => $metric . '_' . $aggregation }, { name => 'display' },
+                                    { name => 'stat' }, { name => 'timeframe' } ],
+                                closure_custom_calc => $self->can('custom_metric_calc'),
+                                closure_custom_calc_extra_options => { metric_perf => $metric_perf,
+                                    metric_label => $metric_label, metric_name => $metric_name, metric => $metric },
+                                closure_custom_output => $self->can('custom_usage_output'),
+                                closure_custom_perfdata => $self->can('custom_usage_perfdata'),
+                                closure_custom_threshold_check => $self->can('custom_usage_threshold'),
+                            }
+                        };
+            push @{$self->{maps_counters}->{metric}}, $entry;
+        }
+        foreach my $metric ('instance/disk/read_ops_count', 'instance/disk/write_ops_count') {
+            my $metric_label = cloud::google::gcp::custom::misc::format_metric_label(metric => $metric, remove => 'instance/');
+            my $metric_perf = cloud::google::gcp::custom::misc::format_metric_perf(metric => $metric, remove => 'instance/');
+            my $metric_name = cloud::google::gcp::custom::misc::format_metric_name(metric => $metric, remove => 'instance/');
+            my $entry = { label => $metric_label . '-' . $aggregation, set => {
+                                key_values => [ { name => $metric . '_' . $aggregation }, { name => 'display' },
+                                    { name => 'stat' }, { name => 'timeframe' } ],
+                                closure_custom_calc => $self->can('custom_metric_calc'),
+                                closure_custom_calc_extra_options => { metric_perf => $metric_perf,
+                                    metric_label => $metric_label, metric_name => $metric_name, metric => $metric },
+                                closure_custom_output => $self->can('custom_ops_output'),
+                                closure_custom_perfdata => $self->can('custom_ops_perfdata'),
+                                closure_custom_threshold_check => $self->can('custom_ops_threshold'),
+                            }
+                        };
+            push @{$self->{maps_counters}->{metric}}, $entry;
+        }
+    }
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments => {
+        "instance:s@"       => { name => 'instance' },
+        "filter-metric:s"   => { name => 'filter_metric' },
+        "per-sec"           => { name => 'per_sec' },
+    });
+    
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::check_options(%options);
+
+    if (!defined($self->{option_results}->{instance})) {
+        $self->{output}->add_option_msg(short_msg => "Need to specify --instance <name>.");
+        $self->{output}->option_exit();
+    }
+    
+    $self->{gcp_instance} = $self->{option_results}->{instance};
+    $self->{gcp_timeframe} = defined($self->{option_results}->{timeframe}) ? $self->{option_results}->{timeframe} : 900;
+    $self->{gcp_aggregations} = ['average'];
+    if (defined($self->{option_results}->{aggregation})) {
+        $self->{gcp_aggregations} = [];
+        foreach my $stat (@{$self->{option_results}->{aggregation}}) {
+            if ($stat ne '') {
+                push @{$self->{gcp_aggregations}}, $stat;
+            }
+        }
+    }
+
+    foreach my $metric ('instance/disk/read_bytes_count', 'instance/disk/throttled_read_bytes_count',
+        'instance/disk/write_bytes_count', 'instance/disk/throttled_write_bytes_count',
+        'instance/disk/read_ops_count', 'instance/disk/write_ops_count') {
+        next if (defined($self->{option_results}->{filter_metric}) && $self->{option_results}->{filter_metric} ne ''
+            && $metric !~ /$self->{option_results}->{filter_metric}/);
+
+        push @{$self->{gcp_metrics}}, $metric;
+    }
+
+    $self->{gcp_api} = "compute.googleapis.com";
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $metric_results;
+    foreach my $instance (@{$self->{gcp_instance}}) {
+        foreach my $metric (@{$self->{gcp_metrics}}) {
+            ($metric_results, undef) = $options{custom}->gcp_get_metrics(
+                instance => $instance,
+                metric => $metric,
+                api => $self->{gcp_api},
+                aggregations => $self->{gcp_aggregations},
+                timeframe => $self->{gcp_timeframe},
+            );
+            
+            foreach my $aggregation (@{$self->{gcp_aggregations}}) {
+                next if (!defined($metric_results->{$metric}->{lc($aggregation)}) && !defined($self->{option_results}->{zeroed}));
+
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{display} = $metric_results->{labels}->{instance_name};
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{timeframe} = $self->{gcp_timeframe};
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{stat} = lc($aggregation);
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{$metric . "_" . lc($aggregation)} = defined($metric_results->{$metric}->{lc($aggregation)}) ? $metric_results->{$metric}->{lc($aggregation)} : 0;
+            }
+        }
+    }
+
+    if (scalar(keys %{$self->{metric}}) <= 0) {
+        $self->{output}->add_option_msg(short_msg => 'No metrics. Check your options or use --zeroed option to set 0 on undefined values');
+        $self->{output}->option_exit();
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check Compute Engine instances disk IO metrics.
+
+Example:
+
+perl centreon_plugins.pl --plugin=cloud::google::gcp::compute::computeengine::plugin --custommode=api --mode=diskio
+--instance=mycomputeinstance --filter-metric='throttled' --aggregation='average'
+--critical-disk-throttled-write-bytes-count-average='10' --verbose
+
+Default aggregation: 'average' / All aggregations are valid.
+
+=over 8
+
+=item B<--instance>
+
+Set instance name (Required).
+
+=item B<--filter-metric>
+
+Filter metrics (Can be: 'instance/disk/read_bytes_count', 'instance/disk/throttled_read_bytes_count',
+'instance/disk/write_bytes_count', 'instance/disk/throttled_write_bytes_count',
+'instance/disk/read_ops_count', 'instance/disk/write_ops_count') (Can be a regexp).
+
+=item B<--warning-$metric$-$aggregation$>
+
+Thresholds warning ($metric$ can be: 'disk-read-bytes-count', 'disk-throttled-read-bytes-count',
+'disk-write-bytes-count', 'disk-throttled-write-bytes-count','disk-read-ops-count',
+'disk-write-ops-count', $aggregation$ can be: 'minimum', 'maximum', 'average', 'total').
+
+=item B<--critical-$metric$-$aggregation$>
+
+Thresholds critical ($metric$ can be: 'disk-read-bytes-count', 'disk-throttled-read-bytes-count',
+'disk-write-bytes-count', 'disk-throttled-write-bytes-count','disk-read-ops-count',
+'disk-write-ops-count', $aggregation$ can be: 'minimum', 'maximum', 'average', 'total').
+
+=item B<--per-sec>
+
+Change the data to be unit/sec.
+
+=back
+
+=cut
diff --git a/cloud/google/gcp/compute/computeengine/mode/network.pm b/cloud/google/gcp/compute/computeengine/mode/network.pm
new file mode 100644
index 000000000..9f2fefef6
--- /dev/null
+++ b/cloud/google/gcp/compute/computeengine/mode/network.pm
@@ -0,0 +1,289 @@
+#
+# Copyright 2019 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::google::gcp::compute::computeengine::mode::network;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+use cloud::google::gcp::custom::misc;
+
+sub prefix_metric_output {
+    my ($self, %options) = @_;
+    
+    return "Instance '" . $options{instance_value}->{display} . "' " . $options{instance_value}->{stat} . " ";
+}
+
+sub custom_metric_calc {
+    my ($self, %options) = @_;
+    
+    $self->{result_values}->{stat} = $options{new_datas}->{$self->{instance} . '_stat'};
+    $self->{result_values}->{metric_perf} = $options{extra_options}->{metric_perf};
+    $self->{result_values}->{metric_label} = $options{extra_options}->{metric_label};
+    $self->{result_values}->{metric_name} = $options{extra_options}->{metric_name};
+    $self->{result_values}->{metric} = $options{extra_options}->{metric};
+    $self->{result_values}->{timeframe} = $options{new_datas}->{$self->{instance} . '_timeframe'};
+    $self->{result_values}->{value} = $options{new_datas}->{$self->{instance} . '_' . $self->{result_values}->{metric} . '_' . $self->{result_values}->{stat}};
+    $self->{result_values}->{value_per_sec} = $self->{result_values}->{value} / $self->{result_values}->{timeframe};
+    $self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
+    return 0;
+}
+
+sub custom_metric_threshold {
+    my ($self, %options) = @_;
+
+    my $exit = $self->{perfdata}->threshold_check(
+        value => defined($self->{instance_mode}->{option_results}->{per_sec}) ?  $self->{result_values}->{value_per_sec} : $self->{result_values}->{value},
+        threshold => [ { label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'critical' },
+                       { label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}, exit_litteral => 'warning' } ]
+    );
+    return $exit;
+}
+
+sub custom_traffic_perfdata {
+    my ($self, %options) = @_;
+
+    my $extra_label = '';
+    $extra_label = '_' . lc($self->{result_values}->{display}) if (!defined($options{extra_instance}) || $options{extra_instance} != 0);
+
+    $self->{output}->perfdata_add(
+        label => $self->{result_values}->{metric_perf} . "_" . $self->{result_values}->{stat} . $extra_label,
+        unit => defined($self->{instance_mode}->{option_results}->{per_sec}) ? 'B/s' : 'B',
+        value => sprintf("%d", defined($self->{instance_mode}->{option_results}->{per_sec}) ? $self->{result_values}->{value_per_sec} : $self->{result_values}->{value}),
+        warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        min => 0
+    );
+}
+
+sub custom_traffic_output {
+    my ($self, %options) = @_;
+    my $msg = "";
+
+    if (defined($self->{instance_mode}->{option_results}->{per_sec})) {
+        my ($value, $unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{value_per_sec});
+        $msg = $self->{result_values}->{metric_name}  . ": " . $value . $unit . "/s"; 
+    } else {
+        my ($value, $unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{value});
+        $msg = $self->{result_values}->{metric_name}  . ": " . $value . $unit;
+    }
+    return $msg;
+}
+
+sub custom_packet_perfdata {
+    my ($self, %options) = @_;
+
+    my $extra_label = '';
+    $extra_label = '_' . lc($self->{result_values}->{display}) if (!defined($options{extra_instance}) || $options{extra_instance} != 0);
+
+    $self->{output}->perfdata_add(
+        label => $self->{result_values}->{metric_perf} . "_" . $self->{result_values}->{stat} . $extra_label,
+        unit => defined($self->{instance_mode}->{option_results}->{per_sec}) ? 'packet/s' : 'packet',
+        value => sprintf("%.2f", defined($self->{instance_mode}->{option_results}->{per_sec}) ? $self->{result_values}->{value_per_sec} : $self->{result_values}->{value}),
+        warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{result_values}->{metric_label} . "-" . $self->{result_values}->{stat}),
+        min => 0
+    );
+}
+
+sub custom_packet_output {
+    my ($self, %options) = @_;
+    my $msg = "";
+
+    if (defined($self->{instance_mode}->{option_results}->{per_sec})) {
+        $msg = sprintf("%s: %.2f packets/s", $self->{result_values}->{metric_name}, $self->{result_values}->{value_per_sec});
+    } else {
+        $msg = sprintf("%s: %.2f packets", $self->{result_values}->{metric_name}, $self->{result_values}->{value});
+    }
+    return $msg;
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+    
+    $self->{maps_counters_type} = [
+        { name => 'metric', type => 1, cb_prefix_output => 'prefix_metric_output',
+          message_multiple => "All network metrics are ok", skipped_code => { -10 => 1 } },
+    ];
+
+    foreach my $aggregation ('minimum', 'maximum', 'average', 'total') {
+        foreach my $metric ('instance/network/received_bytes_count', 'instance/network/sent_bytes_count') {
+            my $metric_label = cloud::google::gcp::custom::misc::format_metric_label(metric => $metric, remove => 'instance/');
+            my $metric_perf = cloud::google::gcp::custom::misc::format_metric_perf(metric => $metric, remove => 'instance/');
+            my $metric_name = cloud::google::gcp::custom::misc::format_metric_name(metric => $metric, remove => 'instance/');
+            my $entry = { label => $metric_label . '-' . $aggregation, set => {
+                                key_values => [ { name => $metric . '_' . $aggregation }, { name => 'display' },
+                                    { name => 'stat' }, { name => 'timeframe' } ],
+                                closure_custom_calc => $self->can('custom_metric_calc'),
+                                closure_custom_calc_extra_options => { metric_perf => $metric_perf,
+                                    metric_label => $metric_label, metric_name => $metric_name, metric => $metric },
+                                closure_custom_output => $self->can('custom_traffic_output'),
+                                closure_custom_perfdata => $self->can('custom_traffic_perfdata'),
+                                closure_custom_threshold_check => $self->can('custom_metric_threshold'),
+                            }
+                        };
+            push @{$self->{maps_counters}->{metric}}, $entry;
+        }
+        foreach my $metric ('instance/network/received_packets_count', 'instance/network/sent_packets_count') {
+            my $metric_label = cloud::google::gcp::custom::misc::format_metric_label(metric => $metric, remove => 'instance/');
+            my $metric_perf = cloud::google::gcp::custom::misc::format_metric_perf(metric => $metric, remove => 'instance/');
+            my $metric_name = cloud::google::gcp::custom::misc::format_metric_name(metric => $metric, remove => 'instance/');
+            my $entry = { label => $metric_label . '-' . $aggregation, set => {
+                                key_values => [ { name => $metric . '_' . $aggregation }, { name => 'display' },
+                                    { name => 'stat' }, { name => 'timeframe' } ],
+                                closure_custom_calc => $self->can('custom_metric_calc'),
+                                closure_custom_calc_extra_options => { metric_perf => $metric_perf,
+                                    metric_label => $metric_label, metric_name => $metric_name, metric => $metric },
+                                closure_custom_output => $self->can('custom_packet_output'),
+                                closure_custom_perfdata => $self->can('custom_packet_perfdata'),
+                                closure_custom_threshold_check => $self->can('custom_metric_threshold'),
+                            }
+                        };
+            push @{$self->{maps_counters}->{metric}}, $entry;
+        }
+    }
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments => {
+        "instance:s@"           => { name => 'instance' },
+        "filter-metric:s"       => { name => 'filter_metric' },
+        "per-sec"               => { name => 'per_sec' },
+    });
+    
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::check_options(%options);
+
+    if (!defined($self->{option_results}->{instance})) {
+        $self->{output}->add_option_msg(short_msg => "Need to specify --instance <name>.");
+        $self->{output}->option_exit();
+    }
+    
+    $self->{gcp_instance} = $self->{option_results}->{instance};
+    $self->{gcp_timeframe} = defined($self->{option_results}->{timeframe}) ? $self->{option_results}->{timeframe} : 900;
+    $self->{gcp_aggregations} = ['average'];
+    if (defined($self->{option_results}->{aggregation})) {
+        $self->{gcp_aggregations} = [];
+        foreach my $stat (@{$self->{option_results}->{aggregation}}) {
+            if ($stat ne '') {
+                push @{$self->{gcp_aggregations}}, $stat;
+            }
+        }
+    }
+
+    foreach my $metric ('instance/network/received_bytes_count', 'instance/network/sent_bytes_count',
+        'instance/network/received_packets_count', 'instance/network/sent_packets_count') {
+        next if (defined($self->{option_results}->{filter_metric}) && $self->{option_results}->{filter_metric} ne ''
+            && $metric !~ /$self->{option_results}->{filter_metric}/);
+
+        push @{$self->{gcp_metrics}}, $metric;
+    }
+
+    $self->{gcp_api} = "compute.googleapis.com";
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $metric_results;
+    foreach my $instance (@{$self->{gcp_instance}}) {
+        foreach my $metric (@{$self->{gcp_metrics}}) {
+            ($metric_results, undef) = $options{custom}->gcp_get_metrics(
+                instance => $instance,
+                metric => $metric,
+                api => $self->{gcp_api},
+                aggregations => $self->{gcp_aggregations},
+                timeframe => $self->{gcp_timeframe},
+            );
+
+            foreach my $aggregation (@{$self->{gcp_aggregations}}) {
+                next if (!defined($metric_results->{$metric}->{lc($aggregation)}) && !defined($self->{option_results}->{zeroed}));
+
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{display} = $metric_results->{labels}->{instance_name};
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{timeframe} = $self->{gcp_timeframe};
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{stat} = lc($aggregation);
+                $self->{metric}->{$instance . "_" . lc($aggregation)}->{$metric . "_" . lc($aggregation)} = defined($metric_results->{$metric}->{lc($aggregation)}) ? $metric_results->{$metric}->{lc($aggregation)} : 0;
+            }
+        }
+    }
+
+    if (scalar(keys %{$self->{metric}}) <= 0) {
+        $self->{output}->add_option_msg(short_msg => 'No metrics. Check your options or use --zeroed option to set 0 on undefined values');
+        $self->{output}->option_exit();
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check Compute Engine instances network metrics.
+
+Example:
+
+perl centreon_plugins.pl --plugin=cloud::google::gcp::compute::computeengine::plugin --custommode=api --mode=network
+--instance=mycomputeinstance --filter-metric='bytes' --aggregation='average'
+--critical-network-received-bytes-count-average='10' --verbose
+
+Default aggregation: 'average' / All aggregations are valid.
+
+=over 8
+
+=item B<--instance>
+
+Set instance name (Required).
+
+=item B<--filter-metric>
+
+Filter metrics (Can be: 'instance/network/received_bytes_count',
+'instance/network/sent_bytes_count', 'instance/network/received_packets_count',
+'instance/network/sent_packets_count') (Can be a regexp).
+
+=item B<--warning-$metric$-$aggregation$>
+
+Thresholds warning ($metric$ can be: 'network-received-bytes-count', 'network-sent-bytes-count',
+'network-received-packets-count','network-sent-packets-count',
+$aggregation$ can be: 'minimum', 'maximum', 'average', 'total').
+
+=item B<--critical-$metric$-$aggregation$>
+
+Thresholds critical ($metric$ can be: 'network-received-bytes-count', 'network-sent-bytes-count',
+'network-received-packets-count','network-sent-packets-count',
+$aggregation$ can be: 'minimum', 'maximum', 'average', 'total').
+
+=item B<--per-sec>
+
+Change the data to be unit/sec.
+
+=back
+
+=cut
diff --git a/cloud/google/gcp/compute/computeengine/plugin.pm b/cloud/google/gcp/compute/computeengine/plugin.pm
new file mode 100644
index 000000000..79ee41944
--- /dev/null
+++ b/cloud/google/gcp/compute/computeengine/plugin.pm
@@ -0,0 +1,51 @@
+#
+# Copyright 2019 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::google::gcp::compute::computeengine::plugin;
+
+use strict;
+use warnings;
+use base qw(centreon::plugins::script_custom);
+
+sub new {
+    my ( $class, %options ) = @_;
+    my $self = $class->SUPER::new( package => __PACKAGE__, %options );
+    bless $self, $class;
+
+    $self->{version} = '0.1';
+    %{ $self->{modes} } = (
+        'cpu'                   => 'cloud::google::gcp::compute::computeengine::mode::cpu',
+        'diskio'                => 'cloud::google::gcp::compute::computeengine::mode::diskio',
+        'network'               => 'cloud::google::gcp::compute::computeengine::mode::network',
+    );
+
+    $self->{custom_modes}{api} = 'cloud::google::gcp::custom::api';
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 PLUGIN DESCRIPTION
+
+Check Google Cloud Platform Compute Engine.
+
+=cut
diff --git a/cloud/google/gcp/custom/api.pm b/cloud/google/gcp/custom/api.pm
index b6daa99a6..3f3cf7abe 100644
--- a/cloud/google/gcp/custom/api.pm
+++ b/cloud/google/gcp/custom/api.pm
@@ -189,7 +189,7 @@ sub get_access_token {
                                              full_url => $self->{authorization_endpoint},
                                              hostname => '');
 
-        if (!defined($content) || $content eq '' || $self->{http}->get_header(name => 'content-length') == 0) {
+        if (!defined($content) || $content eq '') {
             $self->{output}->add_option_msg(short_msg => "Authorization endpoint API returns empty content [code: '" . $self->{http}->get_code() . "'] [message: '" . $self->{http}->get_message() . "']");
             $self->{output}->option_exit();
         }
@@ -255,7 +255,7 @@ sub request_api {
 
     my $content = $self->{http}->request(%options);
 
-    if (!defined($content) || $content eq '' || $self->{http}->get_header(name => 'content-length') == 0) {
+    if (!defined($content) || $content eq '') {
         $self->{output}->add_option_msg(short_msg => "Monitoring endpoint API returns empty content [code: '" . $self->{http}->get_code() . "'] [message: '" . $self->{http}->get_message() . "']");
         $self->{output}->option_exit();
     }
diff --git a/cloud/google/gcp/custom/misc.pm b/cloud/google/gcp/custom/misc.pm
new file mode 100644
index 000000000..6b93aaab4
--- /dev/null
+++ b/cloud/google/gcp/custom/misc.pm
@@ -0,0 +1,62 @@
+#
+# Copyright 2019 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::google::gcp::custom::misc;
+
+use strict;
+use warnings;
+
+sub format_metric_label {
+    my (%options) = @_;
+
+    my $metric = $options{metric};
+    $metric =~ s/$options{remove}// if (defined($options{remove}) && $options{remove} ne '');
+    $metric = lc($metric);
+    $metric =~ s/(\/)|(_)/-/g;
+
+    return $metric;
+}
+
+sub format_metric_perf {
+    my (%options) = @_;
+
+    my $metric = $options{metric};
+    $metric =~ s/$options{remove}// if (defined($options{remove}) && $options{remove} ne '');
+    $metric = lc($metric);
+    $metric =~ s/\//_/g;
+
+    return $metric;
+}
+
+sub format_metric_name {
+    my (%options) = @_;
+
+    my $metric = $options{metric};
+    $metric =~ s/$options{remove}// if (defined($options{remove}) && $options{remove} ne '');
+    $metric =~ s/(\/)|(_)/ /g;
+    $metric =~ s/(\w+)/\u$1/g;
+
+    return $metric;
+}
+
+1;
+
+__END__
+