From 373a2dfb348b8441aab5f6c6bbc66e78a4167984 Mon Sep 17 00:00:00 2001 From: Sebastian Rieger Date: Thu, 28 May 2020 11:43:38 +0200 Subject: [PATCH] added code section comments, added config param for VPC to support starting in envs with multiple vpcs, added output for lb dns --- .../start.py | 66 ++++++++++++------- .../stop.py | 45 +++++-------- 2 files changed, 59 insertions(+), 52 deletions(-) diff --git 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 index 95ee7a1..d1c6e6c 100644 --- 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 @@ -3,44 +3,41 @@ import time import boto3 from botocore.exceptions import ClientError + +################################################################################################ +# +# Configuration Parameters +# +################################################################################################ + + 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' -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' - ) +# if you only have one VPC, vpc_id can be retrieved using: +# +# response = ec2Client.describe_vpcs() +# vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '') + + +################################################################################################ +# +# boto3 code +# +################################################################################################ -# convert with: cat install-mysql | sed "s/^/'/; s/$/\\\n'/" client = boto3.setup_default_session(region_name=region) ec2Client = boto3.client("ec2") ec2Resource = boto3.resource('ec2') -response = ec2Client.describe_vpcs() -vpc_id = response.get('Vpcs', [{}])[0].get('VpcId', '') - elbv2Client = boto3.client('elbv2') asClient = boto3.client('autoscaling') @@ -156,6 +153,27 @@ except ClientError as e: print("Running new DB instance...") print("------------------------------------") +userDataDB = ('#!/bin/bash\n' + '#!/bin/bash\n' + '# extra repo for RedHat rpms\n' + 'yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm\n' + '# essential tools\n' + 'yum install -y joe htop git\n' + '# mysql\n' + 'yum install -y mariadb mariadb-server\n' + '\n' + 'service mariadb start\n' + '\n' + 'echo "create database cloud_tug_of_war" | mysql -u root\n' + '\n' + 'echo "create table clouds ( cloud_id INT AUTO_INCREMENT, name VARCHAR(255) NOT NULL, value INT, max_value INT, PRIMARY KEY (cloud_id))" | mysql -u root cloud_tug_of_war\n' + '\n' + 'echo "CREATE USER \'cloud_tug_of_war\'@\'%\' IDENTIFIED BY \'cloudpass\';" | mysql -u root\n' + 'echo "GRANT ALL PRIVILEGES ON cloud_tug_of_war.* TO \'cloud_tug_of_war\'@\'%\';" | mysql -u root\n' + 'echo "FLUSH PRIVILEGES" | mysql -u root\n' + ) +# convert user-data from script with: cat install-mysql | sed "s/^/'/; s/$/\\\n'/" + response = ec2Client.run_instances( ImageId=imageId, InstanceType=instanceType, @@ -319,3 +337,5 @@ response = asClient.put_scaling_policy( 'TargetValue': 5.0, } ) + +print('Load Balancer should be reachable at: ' + loadbalancer_dns) diff --git a/example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/stop.py b/example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/stop.py index c27d8e5..9c38563 100644 --- a/example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/stop.py +++ b/example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/stop.py @@ -3,36 +3,23 @@ import time import boto3 from botocore.exceptions import ClientError + +################################################################################################ +# +# Configuration Parameters +# +################################################################################################ + + 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'/" + + +################################################################################################ +# +# boto3 code +# +################################################################################################ + client = boto3.setup_default_session(region_name=region) ec2Client = boto3.client("ec2")