fix(cli): remove loading of local aws config / credentials to avoid r…

…untime issues

if AWS_SDK_LOAD_CONFIG will be loaded the aws config and credentials file will be checked. An error
occurs when these files have not been set.

packages/cli/src/actions/aws-actions.ts

@@ -1,22 +1,11 @@
-process.env.AWS_SDK_LOAD_CONFIG = 'true';
 import AWS = require('aws-sdk');
 
-const ec2: AWS.EC2 = new AWS.EC2();
+const ec2: AWS.EC2 = new AWS.EC2({ region: 'us-east-1' });
 const cloudformation: AWS.CloudFormation = new AWS.CloudFormation();
 const sts: AWS.STS = new AWS.STS();
-/* if (!AWS.config.region) {
-    AWS.config.update({ region: 'us-east-1' });
-}
- */
 
 export class AWSActions {
   constructor() {}
-  static getCurrentRegion(): string {
-    if (!AWS.config.region) {
-      AWS.config.update({ region: 'us-east-1' });
-    }
-    return AWS.config.region!;
-  }
 
   static async checkValidAWSIdentity(): Promise<
     AWS.STS.GetCallerIdentityResponse
@@ -32,15 +21,13 @@ export class AWSActions {
 
   static async getAllRegionsByName(): Promise<Array<Object>> {
     try {
-      let regions: Object[];
+      let regions: string[] = [];
       const result = await ec2.describeRegions({ AllRegions: true }).promise();
 
       regions = result
         .Regions!.sort((a, b) => a.RegionName!.localeCompare(b.RegionName!))
         .map((x) => {
-          return new Object({
-            name: x.RegionName,
-          });
+          return x.RegionName!;
         });
       return regions;
     } catch (error) {

packages/cli/src/commands/create-stack.ts

@@ -139,6 +139,7 @@ export class CreateStackCommand extends Command {
     let region: string | undefined;
     if (flags.region) {
       region = flags.region;
+      await this.verifyRegion(region);
     } else {
       region = await this.getRegion();
     }
@@ -312,6 +313,17 @@ export class CreateStackCommand extends Command {
     }
   }
 
+  private async verifyRegion(region: string | undefined) {
+    let regions = await AWSActions.getAllRegionsByName();
+    if (!regions.find((x) => x === region)) {
+      this.error(
+        'Please check the value for the region parameter - the region ' +
+          region +
+          ' cannot be found in aws and is not valid'
+      );
+    }
+  }
+
   private async checkIdentity() {
     cli.action.start(
       `${chalk.blueBright('Check AWS Identity')}`,
@@ -364,8 +376,7 @@ export class CreateStackCommand extends Command {
 
   private async getRegion() {
     let regions = await AWSActions.getAllRegionsByName();
-    regions.unshift({ name: AWSActions.getCurrentRegion() });
-    let region = '';
+    let region = null;
 
     let responses: any = await inquirer.prompt([
       {