adapted aws-boto3-rds-db and aws-boto3-standalone-db-autoscaling example of tug-of-war in the clouds for AWS Educate Accounts, however, due to missing Roles and permissions both are currently not usable in AWS Educate

example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py

@@ -7,7 +7,8 @@ from botocore.exceptions import ClientError
 #
 ################################################################################################
 
-# !!!!!!!! You cannot use RDS in AWS Ecucate Account !!!!!!!!
+print("!!!!!!!! You cannot use RDS in AWS Educate Account !!!!!!!!")
+exit(-1)
 
 # 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)

example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/start.py

@@ -10,21 +10,31 @@ from botocore.exceptions import ClientError
 #
 ################################################################################################
 
+print("!!!!!!!! You cannot use Auto Scaling Group in AWS Educate Account !!!!!!!!")
+exit(-1)
+
+# 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'
+availabilityZone1 = 'us-east-1a'
+availabilityZone2 = 'us-east-1b'
+availabilityZone3 = 'us-east-1c'
+# 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'
 
-region = 'eu-central-1'
-availabilityZone = 'eu-central-1b'
-imageId = 'ami-0cc293023f983ed53'
-instanceType = 't3.nano'
 keyName = 'srieger-pub'
-vpc_id = 'vpc-eedd4187'
-subnet1 = 'subnet-41422b28'
-subnet2 = 'subnet-5c5f6d16'
-subnet3 = 'subnet-6f2ea214'
-
-# if you only have one VPC, vpc_id can be retrieved using:
-#
-# response = ec2Client.describe_vpcs()
-# vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
 
 
 ################################################################################################
@@ -41,6 +51,35 @@ ec2Resource = boto3.resource('ec2')
 elbv2Client = boto3.client('elbv2')
 asClient = boto3.client('autoscaling')
 
+# 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_id1 = ec2Client.describe_subnets(
+    Filters=[
+        {
+            'Name': 'availability-zone', 'Values': [availabilityZone1]
+        }
+    ])['Subnets'][0]['SubnetId']
+
+subnet_id2 = ec2Client.describe_subnets(
+    Filters=[
+        {
+            'Name': 'availability-zone', 'Values': [availabilityZone2]
+        }
+    ])['Subnets'][0]['SubnetId']
+
+subnet_id3 = ec2Client.describe_subnets(
+    Filters=[
+        {
+            'Name': 'availability-zone', 'Values': [availabilityZone3]
+        }
+    ])['Subnets'][0]['SubnetId']
+
+
 print("Deleting auto scaling group...")
 print("------------------------------------")
 
@@ -176,7 +215,7 @@ userDataDB = ('#!/bin/bash\n'
 response = ec2Client.run_instances(
     ImageId=imageId,
     InstanceType=instanceType,
-    Placement={'AvailabilityZone': availabilityZone, },
+    Placement={'AvailabilityZone': availabilityZone1, },
     KeyName=keyName,
     MinCount=1,
     MaxCount=1,
@@ -249,9 +288,9 @@ print("------------------------------------")
 response = elbv2Client.create_load_balancer(
     Name='tug-of-war-asg-loadbalancer',
     Subnets=[
-        subnet1,
+        subnet_id1,
-        subnet2,
+        subnet_id2,
-        subnet3,
+        subnet_id3,
     ],
     SecurityGroups=[
         security_group_id
@@ -311,7 +350,7 @@ response = asClient.create_auto_scaling_group(
     TargetGroupARNs=[
         targetgroup_arn,
     ],
-    VPCZoneIdentifier=subnet1 + ', ' + ', ' + subnet2 + ', ' + subnet3,
+    VPCZoneIdentifier=subnet_id1 + ', ' + ', ' + subnet_id2 + ', ' + subnet_id3,
     Tags=[
         {'Key': 'Name', 'Value': 'tug-of-war-asg-webserver', 'PropagateAtLaunch': True},
         {'Key': 'tug-of-war', 'Value': 'webserver', 'PropagateAtLaunch': True}

example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/stop.py

@@ -11,7 +11,8 @@ from botocore.exceptions import ClientError
 ################################################################################################
 
 
-region = 'eu-central-1'
+region = 'us-east-1'
+# region = 'eu-central-1'
 
 
 ################################################################################################