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added code section comments, added config param for VPC to support starting in envs with multiple vpcs, added output for lb dns

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This commit is contained in:
Sebastian Rieger 2020-05-28 11:43:38 +02:00
parent aa7160f656
commit 373a2dfb34
2 changed files with 57 additions and 50 deletions
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66
example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/start.py
View File

@ -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)

41
example-projects/tug-of-war-in-the-clouds/aws-boto3-standalone-db-autoscaling/stop.py
View File

@ -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")