fixed missing vpc config section (#941)

* fixed missing vpc config section

* throw an error if manditory section missing

* fixed typo

Co-authored-by: hickeydh-aws <hickeydh@amazon.com>

Author: hickeydh-aws

src/lib/common/src/util/common.ts

@@ -269,7 +269,13 @@ export async function vpcReplacements(props: { rawConfigStr: string }): Promise<
   const ouOrAccountReplacementRegex = '\\${CONFIG::OU_NAME}';
   const vpcConfigSections = ['workload-account-configs', 'mandatory-account-configs', 'organizational-units'];
   const rawConfig = JSON.parse(rawConfigStr);
-  for (const vpcConfigSection of vpcConfigSections) {
+  const existingVpcConfigSections = vpcConfigSections.filter(vpcConfigSection => rawConfig[vpcConfigSection]);
+  if (existingVpcConfigSections.length < vpcConfigSections.length) {
+    console.log('Expected the following keys to exist', vpcConfigSections);
+    console.log('Only found the following keys', existingVpcConfigSections);
+    throw new Error('Please add the missing manditory sections to the configuration file.');
+  }
+  for (const vpcConfigSection of existingVpcConfigSections) {
     Object.entries(rawConfig[vpcConfigSection]).map(([key, _]) => {
       const replacements = {
         '\\${CONFIG::VPC_NAME}': key,