fix(installer): Adding validation to Accelerator Name and Prefix (#631)

* Adding validation to Accelerator Name and Prefix

* Forcing - in the end for Accelerator prefix

* Removing _ from name and prefix. Also remove - from name

Author: naveenkoppula

src/installer/cdk/src/index.ts

@@ -28,11 +28,13 @@ async function main() {
   const acceleratorPrefixParam = new cdk.CfnParameter(stack, 'AcceleratorPrefix', {
     default: 'PBMMAccel-',
     description: 'Accelerator prefix used for deployment.',
+    allowedPattern: '[a-zA-Z][a-zA-Z0-9-]*-',
   });
 
   const acceleratorNameParam = new cdk.CfnParameter(stack, 'AcceleratorName', {
     default: 'PBMM',
     description: 'Accelerator Name used for deployment.',
+    allowedPattern: '[a-zA-Z][a-zA-Z0-9]*',
   });
 
   const acceleratorName = acceleratorNameParam.valueAsString;