diff --git a/cloud/prometheus/restapi/mode/expression.pm b/cloud/prometheus/restapi/mode/expression.pm
new file mode 100644
index 000000000..1e1e357db
--- /dev/null
+++ b/cloud/prometheus/restapi/mode/expression.pm
@@ -0,0 +1,310 @@
+#
+# Copyright 2018 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::prometheus::restapi::mode::expression;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+
+my $instance_mode;
+
+sub custom_status_perfdata {
+    my ($self, %options) = @_;
+    
+    my $extra_label = '';
+    if (!defined($options{extra_instance}) || $options{extra_instance} != 0) {
+        $extra_label .= '_' . $self->{result_values}->{instance};
+    }
+    
+    foreach my $key (@{$instance_mode->{custom_keys}}) {
+        $self->{output}->perfdata_add(label => $key . $extra_label,
+                                      value => $self->{result_values}->{$key});
+    }
+}
+
+sub custom_status_threshold {
+    my ($self, %options) = @_;
+    my $status = 'ok';
+    my $message;
+
+    eval {
+        local $SIG{__WARN__} = sub { $message = $_[0]; };
+        local $SIG{__DIE__} = sub { $message = $_[0]; };
+
+        if (defined($instance_mode->{option_results}->{critical_status}) && $instance_mode->{option_results}->{critical_status} ne '' &&
+            eval "$instance_mode->{option_results}->{critical_status}") {
+            $status = 'critical';
+        } elsif (defined($instance_mode->{option_results}->{warning_status}) && $instance_mode->{option_results}->{warning_status} ne '' &&
+            eval "$instance_mode->{option_results}->{warning_status}") {
+            $status = 'warning';
+        }
+    };
+    if (defined($message)) {
+        $self->{output}->output_add(long_msg => 'filter status issue: ' . $message);
+    }
+
+    return $status;
+}
+
+sub custom_status_output {
+    my ($self, %options) = @_;
+
+    my $msg = $instance_mode->{option_results}->{output};
+    while ($msg =~ /%\{(.*?)\}/g) {
+        my $key = $1;
+        if (defined($self->{result_values}->{$key})) {
+            $msg =~ s/%{$key}/$self->{result_values}->{$key}/g;
+        }
+    }
+
+    return $msg;
+}
+
+sub custom_status_calc {
+    my ($self, %options) = @_;
+
+    $self->{result_values}->{instance} = $options{new_datas}->{$self->{instance} . '_instance'};
+    foreach my $key (@{$instance_mode->{custom_keys}}) {
+        $self->{result_values}->{$key} = $options{new_datas}->{$self->{instance} . '_' . $key};
+    }
+    
+    return 0;
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+    
+    $self->{maps_counters_type} = [
+        { name => 'expressions', type => 1, 
+            message_multiple => 'All expressions results are ok', skipped_code => { -11 => 1 } },
+    ];
+
+    $self->{maps_counters}->{expressions} = [
+        { label => 'status', set => {
+                key_values => [ { name => 'instance' } ],
+                closure_custom_calc => $self->can('custom_status_calc'),
+                closure_custom_output => $self->can('custom_status_output'),
+                closure_custom_perfdata => $self->can('custom_status_perfdata'),
+                closure_custom_threshold_check => $self->can('custom_status_threshold'),
+            }
+        },
+    ];
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                {
+                                  "query:s@"                => { name => 'query' },
+                                  "query-range:s@"          => { name => 'query_range' },
+                                  "instance:s"              => { name => 'instance' },
+                                  "aggregation:s"           => { name => 'aggregation', default => 'average' },
+                                  "output:s"                => { name => 'output' },
+                                  "multiple-output:s"       => { name => 'multiple_output' },
+                                  "warning-status:s"        => { name => 'warning_status', default => '' },
+                                  "critical-status:s"       => { name => 'critical_status', default => '' },
+                                });
+   
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::check_options(%options);
+    
+    if (!defined($self->{option_results}->{output}) || $self->{option_results}->{output} eq '') {
+        $self->{output}->add_option_msg(short_msg => "Need to specify output option.");
+        $self->{output}->option_exit();
+    }
+    
+    if (!defined($self->{option_results}->{instance}) || $self->{option_results}->{instance} eq '') {
+        $self->{output}->add_option_msg(short_msg => "Need to specify instance option.");
+        $self->{output}->option_exit();
+    }
+    
+    if (!defined($self->{option_results}->{query}) && !defined($self->{option_results}->{query_range})) {
+        $self->{output}->add_option_msg(short_msg => "Need to specify query or query-range option.");
+        $self->{output}->option_exit();
+    }
+
+    $self->{custom_keys} = [];
+    $self->{queries} = {};
+    foreach my $query (@{$self->{option_results}->{query}}) {
+        next if ($query !~ /^(\w+),(.*)/);
+        $self->{queries}->{$1} = $2;
+        push @{$self->{maps_counters}->{expressions}[0]->{set}->{key_values}}, { name => $1 };
+        push @{$self->{custom_keys}}, $1;
+    }
+
+    $self->{query_ranges} = {};
+    foreach my $query (@{$self->{option_results}->{query_range}}) {
+        next if ($query !~ /^(\w+),(.*)/);
+        $self->{query_ranges}->{$1} = $2;
+        push @{$self->{maps_counters}->{expressions}[0]->{set}->{key_values}}, { name => $1 };
+        push @{$self->{custom_keys}}, $1;
+    }
+
+    $self->{maps_counters_type}[0]->{message_multiple} = $self->{option_results}->{multiple_output} if (defined($self->{option_results}->{multiple_output}));
+
+    $self->{prom_timeframe} = defined($self->{option_results}->{timeframe}) ? $self->{option_results}->{timeframe} : 900;
+    $self->{prom_step} = defined($self->{option_results}->{step}) ? $self->{option_results}->{step} : "1m";
+
+    $instance_mode = $self;
+    $self->change_macros();
+}
+
+sub change_macros {
+    my ($self, %options) = @_;
+    
+    foreach (('warning_status', 'critical_status')) {
+        if (defined($self->{option_results}->{$_})) {
+            $self->{option_results}->{$_} =~ s/%\{(.*?)\}/\$self->{result_values}->{$1}/g;
+        }
+    }
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    $self->{expressions} = {};
+    my (@results, @queries, @query_ranges);
+
+    foreach my $label (keys %{$self->{queries}}) {
+        my $prom_query = sprintf('label_replace(%s,"__name__","%s","","")', $self->{queries}->{$label}, $label);
+        push @queries, $prom_query;
+    }
+    foreach my $label (keys %{$self->{query_ranges}}) {
+        my $prom_query = sprintf('label_replace(%s,"__name__","%s","","")', $self->{query_ranges}->{$label}, $label);
+        push @query_ranges, $prom_query;
+    }
+    
+    my $queries_results = $options{custom}->query(queries => \@queries) if (scalar(@queries) > 0);
+    my $query_ranges_results = $options{custom}->query_range(queries => \@query_ranges, timeframe => $self->{prom_timeframe}, step => $self->{prom_step}) if (scalar(@query_ranges) > 0);
+    push @results, @{$queries_results} if (defined($queries_results));
+    push @results, @{$query_ranges_results} if (defined($query_ranges_results));
+
+    foreach my $result (@results) {
+        next if (!defined($result->{metric}->{$self->{option_results}->{instance}}));        
+        my $value;
+        $value = $options{custom}->compute(aggregation => $self->{option_results}->{aggregation}, values => $result->{values}) if (defined($result->{values}));
+        $value = ${$result->{value}}[1] if (defined($result->{value}));
+        $self->{expressions}->{$result->{metric}->{$self->{option_results}->{instance}}}->{instance} = $result->{metric}->{$self->{option_results}->{instance}};
+        $self->{expressions}->{$result->{metric}->{$self->{option_results}->{instance}}}->{$result->{metric}->{__name__}} = $value;
+    }
+
+    if (scalar(keys %{$self->{expressions}}) <= 0) {
+        $self->{output}->add_option_msg(short_msg => "No expressions found.");
+        $self->{output}->option_exit();
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check expression.
+
+Examples:
+
+# perl centreon_plugins.pl --plugin=cloud::prometheus::restapi::plugin --mode=expression
+--hostname=localhost --port=9090 --query='desired,kube_deployment_spec_replicas'
+--query='available,kube_deployment_status_replicas_available' --instance='deployment'
+--critical-status='%{available} < %{desired}'
+--output='Deployment %{instance} Replicas Desired: %{desired}, Available: %{available}'
+--multiple-output='All deployments replicas are ok'
+
+# perl centreon_plugins.pl --plugin=cloud::prometheus::restapi::plugin --mode=expression
+--hostname=localhost --port=9090 --query='last,container_cpu_usage_seconds_total{container_name!~".*POD.*"}'
+--query-range='average,irate(container_cpu_usage_seconds_total{container_name!~".*POD.*"}[1m])*100' --timeframe='900'
+--step='1m' --aggregation='average' --instance='name' --critical-status='%{last} > 50 || %{average} > 10'
+--output='Container %{instance} CPU Average: %{average}%, Last: %{last}%'
+--multiple-output='All containers CPU usage are ok'
+
+# perl centreon_plugins.pl --plugin=cloud::prometheus::restapi::plugin --mode=expression
+--hostname=localhost --port=9090 --query='usage_prct,container_memory_usage_bytes/container_spec_memory_limit_bytes*100'
+--query='usage_bytes,container_memory_usage_bytes' --query='limits_bytes,container_spec_memory_limit_bytes'
+--instance='name' --critical-status='%{limits_bytes} > 0 && %{usage_prct} > 10'
+--output='Container %{instance} Memory usage: %{average}% [usage = %{usage_bytes}B][limits = %{limits_bytes}B]'
+
+=over 8
+
+=item B<--query>
+
+Set a PromQL query. Query option must be like --query='label,query'.
+
+=item B<--query-range>
+
+Set a PromQL query. Query option must be like --query-range='label,query'.
+
+This query type uses --step, --timeframe and --aggregation options to compute the values.
+
+=item B<--instance>
+
+Set the instance label on which the results should be calculate for (Example: --instance='name').
+
+=item B<--output>
+
+Set the output for each instances (Example: --output='Container %{instance} value is {label}').
+
+=item B<--multiple-output>
+
+Set the global output in case everything is fine for multiple instances
+(Example: --multiple-output='Container %{instance} value is {label}').
+
+=item B<--warning-status>
+
+Set warning threshold for status (Default: '').
+
+Can use special variables like %{instance} and any other
+labels you set through --query and --query-range options.
+
+=item B<--critical-status>
+
+Set critical threshold for status (Default: '').
+
+Can use special variables like %{instance} and any other
+labels you set through --query and --query-range options.
+
+=item B<--timeframe>
+
+Set timeframe in seconds (i.e. 3600 to check last hour)
+(Required for --query-range queries, Default: '900').
+
+=item B<--step>
+
+Set the step of the metric query (Examples: '30s', '1m', '15m', '1h')
+(Required for --query-range queries, Default: '1m').
+
+=item B<--aggregation>
+
+Set the aggregation on metric values (Can be: 'average', 'min', 'max', 'sum')
+(Required for --query-range queries, Default: 'average').
+
+=back
+
+=cut
diff --git a/cloud/prometheus/restapi/plugin.pm b/cloud/prometheus/restapi/plugin.pm
index 6e89e1db7..63a2aa58f 100644
--- a/cloud/prometheus/restapi/plugin.pm
+++ b/cloud/prometheus/restapi/plugin.pm
@@ -31,6 +31,7 @@ sub new {
 
     $self->{version} = '0.1';
     %{$self->{modes}} = (
+                        'expression'       => 'cloud::prometheus::restapi::mode::expression',
                         'target-status'    => 'cloud::prometheus::restapi::mode::targetstatus',
                         );