diff --git a/Build.PL b/Build.PL
index 9ad44d50..d3116373 100644
--- a/Build.PL
+++ b/Build.PL
@@ -9,8 +9,10 @@ my $builder = Module::Build->new(
         'DBIx::Class::Schema::Loader' => 0,
         'File::Path'                  => 0,
         'Getopt::Long'                => 0,
+        'MooseX::ClassAttribute'      => 0,
         'MooseX::FileAttribute'       => 0,
         'MooseX::NonMoose'            => 0,
+        'MooseX::Singleton'           => 0,
         'namespace::sweep'            => 0,
         'Quantum::Superpositions'     => 0,
         'Pod::Usage'                  => 0,
diff --git a/lib/NGCP/Schema.pm b/lib/NGCP/Schema.pm
index 1a07d5e7..bdcb2e54 100644
--- a/lib/NGCP/Schema.pm
+++ b/lib/NGCP/Schema.pm
@@ -7,7 +7,9 @@ use Regexp::IPv6 qw($IPv6_re);
 
 our $VERSION = '1.000';
 
-has('config', is => 'rw', lazy => 1, default => sub { NGCP::Schema::Config->new->config });
+has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
 
 method validate($data, $mandatory_params, $optional_params?) {
     Exception->throw({
@@ -40,7 +42,7 @@ method check_domain($data) {
     $self->validate($data, ['domain']);
     my $domain = $data->{domain};
     return 1 if $domain =~ /^(?:[a-z0-9]+(?:-[a-z0-9]+)*\.)+[a-z]+$/i;
-    return 1 if $self->config->config->{allow_ip_as_domain}
+    return 1 if $self->config->as_hash->{allow_ip_as_domain}
         and ($self->check_ip4({ip4 => $domain}) || $self->check_ip6_brackets({ip6brackets => $domain}));
     return;
 }
diff --git a/lib/NGCP/Schema/Config.pm b/lib/NGCP/Schema/Config.pm
index ceb251c2..76a3e4b6 100644
--- a/lib/NGCP/Schema/Config.pm
+++ b/lib/NGCP/Schema/Config.pm
@@ -2,12 +2,13 @@ package NGCP::Schema::Config;
 use Sipwise::Base;
 use Log::Log4perl qw();
 use MooseX::FileAttribute qw(has_file);
+use MooseX::Singleton qw(has);
 use XML::Simple qw();
 
 our $VERSION = '1.000';
 
 has_file('config_file', is => 'rw', required => 1, default => '/etc/ngcp-ossbss/provisioning.conf');
-has('config', isa => 'HashRef', is => 'rw', lazy => 1, default => method {
+has('as_hash', isa => 'HashRef', is => 'rw', lazy => 1, default => method {
     return $self->check_config(XML::Simple->new->XMLin($self->config_file->stringify, ForceArray => 0));
 });
 
diff --git a/lib/NGCP/Schema/accounting.pm b/lib/NGCP/Schema/accounting.pm
index b439fe12..7df465d8 100644
--- a/lib/NGCP/Schema/accounting.pm
+++ b/lib/NGCP/Schema/accounting.pm
@@ -13,7 +13,15 @@ __PACKAGE__->load_namespaces;
 # Created by DBIx::Class::Schema::Loader v0.07025 @ 2013-04-09 12:30:37
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:/gINj3OenRQkhpdpfbQq4Q
 
+use MooseX::ClassAttribute qw(class_has);
+
+class_has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
+
+method connection {
+    my %connect_info = %{ $self->config->as_hash->{accountingdb} };
+    $self->SUPER::connection(@connect_info{qw(dsn username password)});
+}
 
-# You can replace this text with custom code or comments, and it will be preserved on regeneration
 __PACKAGE__->meta->make_immutable(inline_constructor => 0);
-1;
diff --git a/lib/NGCP/Schema/billing.pm b/lib/NGCP/Schema/billing.pm
index 830eb76f..ea476f08 100644
--- a/lib/NGCP/Schema/billing.pm
+++ b/lib/NGCP/Schema/billing.pm
@@ -13,15 +13,24 @@ __PACKAGE__->load_namespaces;
 # Created by DBIx::Class::Schema::Loader v0.07035 @ 2013-04-09 12:33:44
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:pFNyB1lQTWbvEckC6oqjJw
 
+use MooseX::ClassAttribute qw(class_has);
 use NGCP::Schema qw();
 use NGCP::Schema::provisioning qw();
 use aliased 'NGCP::Schema::Exception';
 
+class_has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
 has('validator', is => 'rw', isa => 'NGCP::Schema', lazy => 1, default => sub { return NGCP::Schema->new; });
 has('provisioning', is => 'rw', isa => 'NGCP::Schema::provisioning', lazy => 1, default => sub {
     return NGCP::Schema::provisioning->connect;
 });
 
+method connection {
+    my %connect_info = %{ $self->config->as_hash->{billingdb} };
+    $self->SUPER::connection(@connect_info{qw(dsn username password)});
+}
+
 method get_domain($reseller_id, $domain) {
     my %return;
     $return{domain} = $domain;
diff --git a/lib/NGCP/Schema/carrier.pm b/lib/NGCP/Schema/carrier.pm
index 23de4ef2..28c93fa4 100644
--- a/lib/NGCP/Schema/carrier.pm
+++ b/lib/NGCP/Schema/carrier.pm
@@ -13,7 +13,15 @@ __PACKAGE__->load_namespaces;
 # Created by DBIx::Class::Schema::Loader v0.07035 @ 2013-04-09 12:33:48
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:2tiLLQMoqYYiicae6bptbA
 
+use MooseX::ClassAttribute qw(class_has);
+
+class_has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
+
+method connection {
+    my %connect_info = %{ $self->config->as_hash->{carrierdb} };
+    $self->SUPER::connection(@connect_info{qw(dsn username password)});
+}
 
-# You can replace this text with custom code or comments, and it will be preserved on regeneration
 __PACKAGE__->meta->make_immutable(inline_constructor => 0);
-1;
diff --git a/lib/NGCP/Schema/kamailio.pm b/lib/NGCP/Schema/kamailio.pm
index 0317613a..27340eb5 100644
--- a/lib/NGCP/Schema/kamailio.pm
+++ b/lib/NGCP/Schema/kamailio.pm
@@ -13,7 +13,15 @@ __PACKAGE__->load_namespaces;
 # Created by DBIx::Class::Schema::Loader v0.07035 @ 2013-04-09 12:33:56
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:F+YCA+y1IL8DMrefBOhpIg
 
+use MooseX::ClassAttribute qw(class_has);
+
+class_has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
+
+method connection {
+    my %connect_info = %{ $self->config->as_hash->{kamailiodb} };
+    $self->SUPER::connection(@connect_info{qw(dsn username password)});
+}
 
-# You can replace this text with custom code or comments, and it will be preserved on regeneration
 __PACKAGE__->meta->make_immutable(inline_constructor => 0);
-1;
diff --git a/lib/NGCP/Schema/ngcp.pm b/lib/NGCP/Schema/ngcp.pm
index e2e62d52..f762e3f9 100644
--- a/lib/NGCP/Schema/ngcp.pm
+++ b/lib/NGCP/Schema/ngcp.pm
@@ -13,7 +13,15 @@ __PACKAGE__->load_namespaces;
 # Created by DBIx::Class::Schema::Loader v0.07035 @ 2013-04-09 12:33:59
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:P/HNiALDBrupRVTapqCHkg
 
+use MooseX::ClassAttribute qw(class_has);
+
+class_has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
+
+method connection {
+    my %connect_info = %{ $self->config->as_hash->{ngcpdb} };
+    $self->SUPER::connection(@connect_info{qw(dsn username password)});
+}
 
-# You can replace this text with custom code or comments, and it will be preserved on regeneration
 __PACKAGE__->meta->make_immutable(inline_constructor => 0);
-1;
diff --git a/lib/NGCP/Schema/provisioning.pm b/lib/NGCP/Schema/provisioning.pm
index 35c46c70..331b50a0 100644
--- a/lib/NGCP/Schema/provisioning.pm
+++ b/lib/NGCP/Schema/provisioning.pm
@@ -13,11 +13,20 @@ __PACKAGE__->load_namespaces;
 # Created by DBIx::Class::Schema::Loader v0.07035 @ 2013-04-09 12:34:07
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:9CSthIxIDhU92F42rZZoQQ
 
+use MooseX::ClassAttribute qw(class_has);
 use NGCP::Schema qw();
 use aliased 'NGCP::Schema::Exception';
 
+class_has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
 has('validator', is => 'rw', isa => 'NGCP::Schema', lazy => 1, default => sub { return NGCP::Schema->new; });
 
+method connection {
+    my %connect_info = %{ $self->config->as_hash->{provisioningdb} };
+    $self->SUPER::connection(@connect_info{qw(dsn username password)});
+}
+
 method _get_domain_id($domain) {
     my $domainid;
     try {
diff --git a/lib/NGCP/Schema/sipstats.pm b/lib/NGCP/Schema/sipstats.pm
index 105c7777..ad62ad73 100644
--- a/lib/NGCP/Schema/sipstats.pm
+++ b/lib/NGCP/Schema/sipstats.pm
@@ -13,7 +13,15 @@ __PACKAGE__->load_namespaces;
 # Created by DBIx::Class::Schema::Loader v0.07035 @ 2013-04-09 12:34:11
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:Uqcm6asjrNcv63rMCeWfiQ
 
+use MooseX::ClassAttribute qw(class_has);
+
+class_has('config', is => 'rw', isa => 'NGCP::Schema::Config', lazy => 1, default => sub {
+    return NGCP::Schema::Config->instance;
+});
+
+method connection {
+    my %connect_info = %{ $self->config->as_hash->{sipstatsdb} };
+    $self->SUPER::connection(@connect_info{qw(dsn username password)});
+}
 
-# You can replace this text with custom code or comments, and it will be preserved on regeneration
 __PACKAGE__->meta->make_immutable(inline_constructor => 0);
-1;