diff --git a/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.pl b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.pl
new file mode 100644
index 0000000..e746d8b
--- /dev/null
+++ b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.pl
@@ -0,0 +1,209 @@
+#!/usr/bin/perl -w
+# $Id$
+#
+# Slams attributes on given stems in the config file.
+#
+# Author: James Babb
+# $Date: 2016-07-05 11:43:20 -0500 (Tue, 05 Jul 2016) $
+#
+use strict;
+use warnings;
+use Data::Dumper;
+use JSON;
+use REST::Client;
+use YAML qw/LoadFile Dump/;
+use Getopt::Long;
+use MIME::Base64;
+
+#
+# 1. Pull in the config
+# 2. Set up the environment
+# 3. for each slam:
+#   a. build out request to retrieve matching groups
+#   b. retrieve list of groups
+#   c. for each group:
+#       i. build out request to see if attribute already set with value
+#       ii. if value is already set:
+#           - next;
+#       iii. else:
+#           - build out request to slam attribute
+#           - set attribute with value
+#
+#
+
+my $config = LoadFile('attribute_slam.yaml');
+my $pw     = LoadFile('attribute_slam.pw');
+
+# track exit code. Change to something not 0 if a failure but we don't need to hard fail.
+my $exit_code = 0;
+
+my $DEBUG = $config->{debug};
+
+print Dumper($config) . "\n" . Dumper($pw) . "\n\n" if ($DEBUG);
+
+my $client = REST::Client->new();
+$client->setHost( $config->{grp_ws_endpoint} );
+$client->setTimeout( $config->{timeout} );
+
+my $encoded_auth = encode_base64( $config->{grp_ws_user} . ":" . $pw->{password} );
+
+foreach my $item ( @{ $config->{list} } ) {
+
+    logit( "Working on " . $item->{stem} );
+
+    my %find_groups = (
+        "WsRestFindGroupsLiteRequest" => {
+            "groupName"       => $item->{stem},
+            "stemName"        => $item->{stem},
+            "queryFilterType" => "FIND_BY_GROUP_NAME_APPROXIMATE"
+        }
+    );
+
+    # TODO: because we include the stem, will this match on like uw:domain:AWS and uw:domain:AWS2?
+
+    my $find_groups_json = encode_json( \%find_groups );
+
+    logit("Sending find groups request with: $find_groups_json \n\n-------\n\n") if ($DEBUG);
+
+    $client->POST( $config->{grp_ws_rest_groups},
+        $find_groups_json,
+        { "Content-Type" => "text/x-json", 'Authorization' => "Basic $encoded_auth" } );
+
+    logit( 'Response: ' . $client->responseContent() . "\n" )     if ($DEBUG);
+    logit( 'Response status: ' . $client->responseCode() . "\n" ) if ($DEBUG);
+
+    if ( $client->responseCode() != 200 ) {
+        logit("Did not get back a valid search for groups... Skipping\n");
+        $exit_code = 255;
+        next;
+    }
+
+    my $groups_to_process;
+
+    eval { $groups_to_process = decode_json( $client->responseContent() ); };
+
+    if ( !defined($groups_to_process) ) {
+        logit("Did not get valid JSON from Grouper... Skipping\n");
+        $exit_code = 255;
+        next;
+    }
+
+    foreach my $group ( @{ $groups_to_process->{WsFindGroupsResults}->{groupResults} } ) {
+        logit( "Checking " . $group->{name} );
+
+        my %find_attr = (
+            "WsRestGetAttributeAssignmentsLiteRequest" => {
+                "attributeAssignType"             => "group",
+                "includeAssignmentsonAssignments" => "T",
+                "wsOwnerGroupName"                => $group->{name},
+                "wsAttributeDefNameName"          => $item->{attribute_name}
+            }
+        );
+
+        my $find_attr_json = encode_json( \%find_attr );
+
+        logit("Sending find attributes request with: $find_attr_json \n\n-------\n\n") if ($DEBUG);
+
+        $client->POST( $config->{grp_ws_rest_attributes},
+            $find_attr_json,
+            { "Content-Type" => "text/x-json", 'Authorization' => "Basic $encoded_auth" } );
+
+        logit( 'Response: ' . $client->responseContent() . "\n" )     if ($DEBUG);
+        logit( 'Response status: ' . $client->responseCode() . "\n" ) if ($DEBUG);
+
+        if ( $client->responseCode() != 200 ) {
+            logit("Did not get back a valid search for attributes... Skipping group....\n");
+            $exit_code = 255;
+            next;
+        }
+
+        my $attribute_search;
+
+        eval { $attribute_search = decode_json( $client->responseContent() ); };
+
+        if ( !defined($attribute_search) ) {
+            logit("Did not get valid JSON from Grouper... Skipping group...\n");
+            $exit_code = 255;
+            next;
+        }
+
+        my $found = 0;
+
+        foreach my $attr (
+            @{ $attribute_search->{WsGetAttributeAssignmentsResults}->{wsAttributeAssigns} } )
+        {
+            if ( $attr->{attributeDefNameName} eq $item->{attribute_name} ) {
+                foreach my $value ( @{ $attr->{wsAttributeAssignValues} } ) {
+                    if ( $value->{valueSystem} eq $item->{attribute_value} ) {
+                        logit(
+                            "Attribute $item->{attribute_name} already has value $item->{attribute_value} for group $group->{name}"
+                        ) if ($DEBUG);
+                        $found = 1;
+                        last;
+                    }
+                }
+                logit(
+                    "Attribute $item->{attribute_name} has a value but not correct value for group $group->{name}"
+                ) if ( !$found && $DEBUG );
+            }
+        }
+
+        if ( !$found ) {
+            logit(
+                "Need to set $item->{attribute_name} : $item->{attribute_value} for $group->{name}"
+            );
+
+            my %slam_attr = (
+                "WsRestAssignAttributesLiteRequest" => {
+                    "attributeAssignOperation"      => "assign_attr",
+                    "attributeAssignType"           => "group",
+                    "attributeAssignValueOperation" => "add_value",
+                    "valueSystem"                   => $item->{attribute_value},
+                    "wsAttributeDefNameName"        => $item->{attribute_name},
+                    "wsOwnerGroupName"              => $group->{name}
+                }
+            );
+
+            my $slam_attr_json = encode_json( \%slam_attr );
+
+            $client->POST( $config->{grp_ws_rest_attributes},
+                $slam_attr_json,
+                { "Content-Type" => "text/x-json", 'Authorization' => "Basic $encoded_auth" } );
+
+            logit( 'Response: ' . $client->responseContent() . "\n" )     if ($DEBUG);
+            logit( 'Response status: ' . $client->responseCode() . "\n" ) if ($DEBUG);
+
+            if ( $client->responseCode() != 200 ) {
+                logit(
+                    "Could not add $item->{attribute_name} : $item->{attribute_value} for $group->{name}. Response: "
+                      . $client->responseContent()
+                      . "\n\n--------\n\n" );
+                $exit_code = 255;
+            }
+            else {
+                logit("Added $item->{attribute_name} : $item->{attribute_value} to $group->{name}");
+            }
+
+        }
+
+    }
+
+}
+
+exit $exit_code;
+
+# Log a message to the log file specified in the config file.
+sub logit {
+    my $msg = shift;
+
+    # Timestamp
+    my $tstamp = '';
+    my ( $sec, $min, $hr, $day, $mon, $year ) = localtime;
+    $tstamp =
+      sprintf( "%04d-%02d-%02d %02d:%02d:%02d", 1900 + $year, $mon + 1, $day, $hr, $min, $sec );
+    my $file = $config->{logfile};
+    open( my $fh, ">>", $file ) || die "Unable to open log file $file: $!";
+    print $fh "$tstamp: $msg\n";
+    close($fh);
+    print STDERR "$tstamp: $msg\n" if ($DEBUG);
+}
diff --git a/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.pw b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.pw
new file mode 100644
index 0000000..93166c8
--- /dev/null
+++ b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.pw
@@ -0,0 +1,2 @@
+# Password for account accessing grouper WS
+password: 12345
diff --git a/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.sh b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.sh
new file mode 100644
index 0000000..3547442
--- /dev/null
+++ b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Run the attribute slammer forever and ever running every 10 seconds
+
+cd /opt/attributeSlammer/
+touch slammer.log
+
+tail -f slammer.log &
+
+# wait for grouper ws to be available...typically only during first run while
+# grouper is still boot strapping
+until nc -vz tier-demo-grouper 8080
+do
+    echo "Grouper WS is unavailable - sleeping"
+    sleep 5
+done
+
+while true
+do
+  perl attribute_slam.pl
+  sleep 10
+done
diff --git a/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.yaml b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.yaml
new file mode 100644
index 0000000..015caea
--- /dev/null
+++ b/Sources/SIS/attribute-slammer/attributeSlammer/attribute_slam.yaml
@@ -0,0 +1,34 @@
+# Config file for attribute slammer.
+grp_ws_endpoint: http://tier-demo-grouper:8080
+grp_ws_rest_attributes: /grouper-ws/servicesRest/json/v2_2_000/attributeAssignments
+grp_ws_rest_groups: /grouper-ws/servicesRest/json/v2_2_000/groups
+grp_ws_user: tjordan
+timeout: 10
+debug: 0
+verbose: 1
+logfile: "/opt/attributeSlammer/slammer.log"
+list:
+    # Portal, Grouper, SIS, and ref tree are all released to portal SP
+    #    since that is the proxy to all of those apps
+    # Ref released just for demonstration purposes
+    - stem: "app:grouper"
+      attribute_name: "etc:attribute:ShibEntityId:ShibEntityId"
+      attribute_value: "https://localhost:9443/shibboleth"
+    - stem: "app:sis"
+      attribute_name: "etc:attribute:ShibEntityId:ShibEntityId"
+      attribute_value: "https://localhost:9443/shibboleth"
+    - stem: "app:portal"
+      attribute_name: "etc:attribute:ShibEntityId:ShibEntityId"
+      attribute_value: "https://localhost:9443/shibboleth"
+    - stem: "ref"
+      attribute_name: "etc:attribute:ShibEntityId:ShibEntityId"
+      attribute_value: "https://localhost:9443/shibboleth"
+    # Nothing to TIER Canvas instance...but if you wanted to:
+#    - stem: "app:canvas"
+#      attribute_name: "etc:attribute:ShibEntityId:ShibEntityId"
+#      attribute_value: "http://tier.instructure.com/saml2"
+#    # The bundles such as "All Students" are default release to every SP:
+    - stem: "bundle"
+      attribute_name: "etc:attribute:ShibEntityId:ShibEntityId"
+      attribute_value: "DEFAULT"
+