Missed rule file
diff --git a/buildSrc/src/main/groovy/org/opencord/build/rules/GitSubmoduleUpdateRule.groovy b/buildSrc/src/main/groovy/org/opencord/build/rules/GitSubmoduleUpdateRule.groovy
new file mode 100644
index 0000000..9398027
--- /dev/null
+++ b/buildSrc/src/main/groovy/org/opencord/build/rules/GitSubmoduleUpdateRule.groovy
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012 the original author or authors.
+ *
+ * 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 org.opencord.build.rules
+
+import org.gradle.api.Rule
+import org.gradle.api.tasks.Exec
+
+
+/**
+ * Gradle Rule class to fetch a docker image
+ */
+class GitSubmoduleUpdateRule implements Rule {
+
+    def project
+
+    GitSubmoduleUpdateRule(project) {
+        this.project = project
+    }
+
+    String getDescription() {
+        'Rule Usage: gitupdate<component-name>'
+    }
+
+    void apply(String taskName) {
+        if (taskName.startsWith('gitupdate')) {
+            project.task(taskName, type: Exec) {
+                ext.compName = taskName - 'gitupdate'
+                def spec = project.comps[ext.compName]
+                workingDir = '.'
+                commandLine '/usr/bin/git', 'submodule', 'update', '--init', spec.componentDir
+            }
+        }
+    }
+}