From 698ec0a648cb0c92a081965246ab8d9b1a6872ca Mon Sep 17 00:00:00 2001
From: Sebastian Rieger <sebastian.rieger@informatik.hs-fulda.de>
Date: Tue, 1 Jun 2021 13:17:36 +0200
Subject: [PATCH] adapted aws-boto3-rds-db example of tug-of-war in the clouds
 to AWS Educate Accounts, however, RDS is not allowed in our current classroom

---
 .../aws-boto3-rds-db/start.py                 | 46 +++++++++++++------
 .../aws-boto3-rds-db/stop.py                  | 19 ++++++--
 2 files changed, 49 insertions(+), 16 deletions(-)

diff --git a/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py b/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py
index bdc2e83..49a6796 100644
--- a/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py
+++ b/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py
@@ -1,40 +1,54 @@
 import boto3
 from botocore.exceptions import ClientError
 
-
 ################################################################################################
 #
 # Configuration Parameters
 #
 ################################################################################################
 
+# !!!!!!!! You cannot use RDS in AWS Ecucate Account !!!!!!!!
 
-region = 'eu-central-1'
-availabilityZone = 'eu-central-1b'
-vpc_id = 'vpc-eedd4187'
-imageId = 'ami-0cc293023f983ed53'
-instanceType = 't3.nano'
-keyName = 'srieger-pub'
+# place your credentials in ~/.aws/credentials, as mentioned in AWS Educate Classroom,
+# Account Details, AWC CLI -> Show (Copy and paste the following into ~/.aws/credentials)
 
-# if you only have one VPC, vpc_id can be retrieved using:
-#
-# response = ec2Client.describe_vpcs()
-# vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
+# changed to use us-east, to be able to use AWS Educate Classroom
+region = 'us-east-1'
+availabilityZone = 'us-east-1a'
+# region = 'eu-central-1'
+# availabilityZone = 'eu-central-1b'
 
+# AMI ID of Amazon Linux 2 image 64-bit x86 in us-east-1 (can be retrieved, e.g., at
+# https://console.aws.amazon.com/ec2/v2/home?region=us-east-1#LaunchInstanceWizard:)
+imageId = 'ami-0d5eff06f840b45e9'
+# for eu-central-1, AMI ID of Amazon Linux 2 would be:
+# imageId = 'ami-0cc293023f983ed53'
+
+# potentially change instanceType to t2.micro for "free tier" if using a regular account
+# for production, t3.nano seams better
+instanceType = 't2.nano'
+
+keyName = 'srieger-pub'
 
 ################################################################################################
 #
-# boto3 code
+# boto3 clients and resources (dependencies)
 #
 ################################################################################################
 
-
 client = boto3.setup_default_session(region_name=region)
 ec2Client = boto3.client("ec2")
 ec2Resource = boto3.resource('ec2')
 
 rdsClient = boto3.client("rds")
 
+# if you only have one VPC, vpc_id can be retrieved using:
+response = ec2Client.describe_vpcs()
+vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
+# if you have more than one VPC, vpc_id should be specified, and code
+# top retrieve VPC id below needs to be commented out
+# vpc_id = 'vpc-eedd4187'
+
 subnet_id = ec2Client.describe_subnets(
     Filters=[
         {
@@ -42,6 +56,12 @@ subnet_id = ec2Client.describe_subnets(
         }
     ])['Subnets'][0]['SubnetId']
 
+################################################################################################
+#
+# boto3 code to deploy the application
+#
+################################################################################################
+
 print("Deleting old instance...")
 print("------------------------------------")
 
diff --git a/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/stop.py b/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/stop.py
index 534fa92..53c2654 100644
--- a/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/stop.py
+++ b/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/stop.py
@@ -9,9 +9,22 @@ from botocore.exceptions import ClientError
 ################################################################################################
 
 
-region = 'eu-central-1'
-availabilityZone = 'eu-central-1b'
-imageId = 'ami-0cc293023f983ed53'
+# place your credentials in ~/.aws/credentials, as mentioned in AWS Educate Classroom,
+# Account Details, AWC CLI -> Show (Copy and paste the following into ~/.aws/credentials)
+
+# changed to use us-east, to be able to use AWS Educate Classroom
+region = 'us-east-1'
+availabilityZone = 'us-east-1a'
+# region = 'eu-central-1'
+# availabilityZone = 'eu-central-1b'
+
+# AMI ID of Amazon Linux 2 image 64-bit x86 in us-east-1 (can be retrieved, e.g., at
+# https://console.aws.amazon.com/ec2/v2/home?region=us-east-1#LaunchInstanceWizard:)
+imageId = 'ami-0d5eff06f840b45e9'
+# for eu-central-1, AMI ID of Amazon Linux 2 would be:
+# imageId = 'ami-0cc293023f983ed53'
+
+# potentially change instanceType to t2.micro for "free tier" if using a regular account
 instanceType = 't3.nano'
 keyName = 'srieger-pub'