added autoscaling example

6 years ago · 7df7eb2d8e
1 changed files with 305 additions and 0 deletions
--- a/example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/start.py
+++ b/example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/start.py
@ -0,0 +1,305 @@
+import time
+
+import boto3
+from botocore.exceptions import ClientError
+
+region = 'eu-central-1'
+availabilityZone = 'eu-central-1b'
+imageId = 'ami-0cc293023f983ed53'
+instanceType = 't3.nano'
+keyName = 'srieger-pub'
+subnet1 = 'subnet-41422b28'
+subnet2 = 'subnet-5c5f6d16'
+subnet3 = 'subnet-6f2ea214'
+
+userDataDB = ('#!/bin/bash\n'
+              '#!/bin/bash\n'
+              '# extra repo for RedHat rpms\n'
+              'yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm\n'
+              '# essential tools\n'
+              'yum install -y joe htop git\n'
+              '# mysql\n'
+              'yum install -y mariadb mariadb-server\n'
+              '\n'
+              'service mariadb start\n'
+              '\n'
+              'echo "create database cloud_tug_of_war" | mysql -u root\n'
+              '\n'
+              'echo "create table clouds ( cloud_id INT AUTO_INCREMENT, name VARCHAR(255) NOT NULL, value INT, max_value INT, PRIMARY KEY (cloud_id))" | mysql -u root cloud_tug_of_war\n'
+              '\n'
+              'echo "CREATE USER \'cloud_tug_of_war\'@\'%\' IDENTIFIED BY \'cloudpass\';" | mysql -u root\n'
+              'echo "GRANT ALL PRIVILEGES ON cloud_tug_of_war.* TO \'cloud_tug_of_war\'@\'%\';" | mysql -u root\n'
+              'echo "FLUSH PRIVILEGES" | mysql -u root\n'
+              )
+
+# convert with: cat install-mysql | sed "s/^/'/; s/$/\\\n'/"
+
+client = boto3.setup_default_session(region_name=region)
+ec2Client = boto3.client("ec2")
+ec2Resource = boto3.resource('ec2')
+
+response = ec2Client.describe_vpcs()
+vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '')
+
+elbv2Client = boto3.client('elbv2')
+asClient = boto3.client('autoscaling')
+
+print("Deleting auto scaling group...")
+print("------------------------------------")
+
+try:
+    response = asClient.delete_auto_scaling_group(AutoScalingGroupName='tug-of-war-asg-autoscalinggroup', ForceDelete=True)
+except ClientError as e:
+    print(e)
+
+print("Deleting launch configuration...")
+print("------------------------------------")
+
+try:
+    response = asClient.delete_launch_configuration(LaunchConfigurationName='tug-of-war-asg-launchconfig')
+except ClientError as e:
+    print(e)
+
+
+
+print("Deleting old instances...")
+print("------------------------------------")
+
+response = ec2Client.describe_instances(Filters=[{'Name': 'tag-key', 'Values': ['tug-of-war-asg']}])
+print(response)
+reservations = response['Reservations']
+for reservation in reservations:
+    for instance in reservation['Instances']:
+        if instance['State']['Name'] == "running" or instance['State']['Name'] == "pending":
+            response = ec2Client.terminate_instances(InstanceIds=[instance['InstanceId']])
+            print(response)
+            instanceToTerminate = ec2Resource.Instance(instance['InstanceId'])
+            instanceToTerminate.wait_until_terminated()
+
+
+print("Deleting load balancer and deps...")
+print("------------------------------------")
+
+try:
+    response = elbv2Client.describe_load_balancers(Names=['tug-of-war-asg-loadbalancer'])
+    loadbalancer_arn = response.get('LoadBalancers', [{}])[0].get('LoadBalancerArn', '')
+    response = elbv2Client.delete_load_balancer(LoadBalancerArn=loadbalancer_arn)
+except ClientError as e:
+    print(e)
+
+time.sleep(5)
+
+try:
+    response = elbv2Client.describe_target_groups(Names=['tug-of-war-asg-targetgroup'])
+    targetgroup_arn = response.get('TargetGroups', [{}])[0].get('TargetGroupArn', '')
+    response = elbv2Client.delete_target_group(TargetGroupArn=targetgroup_arn)
+except ClientError as e:
+    print(e)
+
+
+print("Delete old security group...")
+print("------------------------------------")
+
+try:
+    response = ec2Client.delete_security_group(GroupName='tug-of-war-asg')
+except ClientError as e:
+    print(e)
+
+print("Create security group...")
+print("------------------------------------")
+
+try:
+    response = ec2Client.create_security_group(GroupName='tug-of-war-asg',
+                                               Description='tug-of-war-asg',
+                                               VpcId=vpc_id)
+    security_group_id = response['GroupId']
+    print('Security Group Created %s in vpc %s.' % (security_group_id, vpc_id))
+
+    data = ec2Client.authorize_security_group_ingress(
+        GroupId=security_group_id,
+        IpPermissions=[
+            {'IpProtocol': 'tcp',
+             'FromPort': 3306,
+             'ToPort': 3306,
+             'IpRanges': [{'CidrIp': '0.0.0.0/0'}]},
+            {'IpProtocol': 'tcp',
+             'FromPort': 22,
+             'ToPort': 22,
+             'IpRanges': [{'CidrIp': '0.0.0.0/0'}]},
+            {'IpProtocol': 'tcp',
+             'FromPort': 80,
+             'ToPort': 80,
+             'IpRanges': [{'CidrIp': '0.0.0.0/0'}]},
+            {'IpProtocol': 'tcp',
+             'FromPort': 443,
+             'ToPort': 443,
+             'IpRanges': [{'CidrIp': '0.0.0.0/0'}]}
+        ])
+    print('Ingress Successfully Set %s' % data)
+except ClientError as e:
+    print(e)
+
+print("Running new DB instance...")
+print("------------------------------------")
+
+response = ec2Client.run_instances(
+    ImageId=imageId,
+    InstanceType=instanceType,
+    Placement={'AvailabilityZone': availabilityZone, },
+    KeyName=keyName,
+    MinCount=1,
+    MaxCount=1,
+    UserData=userDataDB,
+    SecurityGroupIds=[
+        security_group_id,
+    ],
+    TagSpecifications=[
+        {
+            'ResourceType': 'instance',
+            'Tags': [
+                {'Key': 'Name', 'Value': 'tug-of-war-asg-db1'},
+                {'Key': 'tug-of-war-asg', 'Value': 'db'}
+            ],
+        }
+    ],
+)
+
+instanceIdDB = response['Instances'][0]['InstanceId']
+privateIpDB = response['Instances'][0]['PrivateIpAddress']
+# privateIpDB = response['Instances'][0]['NetworkInterfaces'][0]['NetworkInterfaceId']
+
+instance = ec2Resource.Instance(instanceIdDB)
+instance.wait_until_running()
+
+print(instanceIdDB)
+
+userDataWebServer = ('#!/bin/bash\n'
+                     '# extra repo for RedHat rpms\n'
+                     'yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm\n'
+                     '# essential tools\n'
+                     'yum install -y joe htop git\n'
+                     '# mysql\n'
+                     'yum install -y httpd php php-mysql\n'
+                     '\n'
+                     'service httpd start\n'
+                     'service httpd start\n'
+                     '\n'
+                     # 'wget http://mmnet.informatik.hs-fulda.de/cloudcomp/tug-of-war-in-the-clouds.tar.gz\n'
+                     # 'cp tug-of-war-in-the-clouds.tar.gz /var/www/html/\n'
+                     # 'tar zxvf tug-of-war-in-the-clouds.tar.gz\n'
+                     'cd /var/www/html\n'
+                     'wget https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/example-projects/tug-of-war-in-the-clouds/web-content/index.php\n'
+                     'wget https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/example-projects/tug-of-war-in-the-clouds/web-content/cloud.php\n'
+                     'wget https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/example-projects/tug-of-war-in-the-clouds/web-content/config.php\n'
+                     '\n'
+                     '# change hostname of db connection\n'
+                     'sed -i s/localhost/' + privateIpDB + '/g /var/www/html/config.php\n'
+                     )
+
+print("Creating launch configuration...")
+print("------------------------------------")
+
+response = asClient.create_launch_configuration(
+    #IamInstanceProfile='my-iam-role',
+    ImageId=imageId,
+    InstanceType=instanceType,
+    LaunchConfigurationName='tug-of-war-asg-launchconfig',
+    UserData=userDataWebServer,
+    KeyName=keyName,
+    SecurityGroups=[
+        security_group_id,
+    ],
+)
+
+elbv2Client = boto3.client('elbv2')
+
+print("Creating load balancer...")
+print("------------------------------------")
+
+response = elbv2Client.create_load_balancer(
+    Name='tug-of-war-asg-loadbalancer',
+    Subnets=[
+        subnet1,
+        subnet2,
+        subnet3,
+    ],
+    SecurityGroups=[
+        security_group_id
+    ]
+)
+
+loadbalancer_arn = response.get('LoadBalancers', [{}])[0].get('LoadBalancerArn', '')
+loadbalancer_dns = response.get('LoadBalancers', [{}])[0].get('DNSName', '')
+
+print("Creating target group...")
+print("------------------------------------")
+
+response = elbv2Client.create_target_group(
+    Name='tug-of-war-asg-targetgroup',
+    Port=80,
+    Protocol='HTTP',
+    VpcId=vpc_id,
+)
+
+targetgroup_arn = response.get('TargetGroups', [{}])[0].get('TargetGroupArn', '')
+
+print("Creating listener...")
+print("------------------------------------")
+
+response = elbv2Client.create_listener(
+    DefaultActions=[
+        {
+            'TargetGroupArn': targetgroup_arn,
+            'Type': 'forward',
+        },
+    ],
+    LoadBalancerArn=loadbalancer_arn,
+    Port=80,
+    Protocol='HTTP',
+)
+
+response = elbv2Client.modify_target_group_attributes(
+    TargetGroupArn=targetgroup_arn,
+    Attributes=[
+        {
+            'Key': 'stickiness.enabled',
+            'Value': 'true'
+        },
+    ]
+)
+
+print("Creating auto scaling group...")
+print("------------------------------------")
+
+response = asClient.create_auto_scaling_group(
+    AutoScalingGroupName='tug-of-war-asg-autoscalinggroup',
+    LaunchConfigurationName='tug-of-war-asg-launchconfig',
+    MaxSize=3,
+    MinSize=1,
+    HealthCheckGracePeriod=120,
+    HealthCheckType='ELB',
+    TargetGroupARNs=[
+        targetgroup_arn,
+    ],
+    VPCZoneIdentifier=subnet1 + ', ' + ', ' + subnet2 + ', ' + subnet3,
+    Tags=[
+        {'Key': 'Name', 'Value': 'tug-of-war-asg-webserver', 'PropagateAtLaunch': True},
+        {'Key': 'tug-of-war', 'Value': 'webserver', 'PropagateAtLaunch': True}
+    ],
+)
+
+print('app/tug-of-war-asg-loadbalancer/'+str(loadbalancer_arn).split('/')[2]+'/targetgroup/tug-of-war-asg-targetgroup/'+str(targetgroup_arn).split('/')[1]+'target-group-id')
+
+response = asClient.put_scaling_policy(
+    AutoScalingGroupName='tug-of-war-asg-autoscalinggroup',
+    PolicyName='tug-of-war-asg-scalingpolicy',
+    PolicyType='TargetTrackingScaling',
+    EstimatedInstanceWarmup=30,
+    TargetTrackingConfiguration={
+        'PredefinedMetricSpecification': {
+            'PredefinedMetricType': 'ALBRequestCountPerTarget',
+            'ResourceLabel': 'app/tug-of-war-asg-loadbalancer/'+str(loadbalancer_arn).split('/')[2]+'/targetgroup/tug-of-war-asg-targetgroup/'+str(targetgroup_arn).split('/')[1]+'target-group-id'
+        },
+        'TargetValue': 5.0,
+    }
+)