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updated demo4 to support AWS Academy lab setup

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This commit is contained in:
Sebastian Rieger
2022-05-05 23:12:46 +02:00
parent afd3bef5c2
commit e18ab4dc70
4 changed files with 108 additions and 88 deletions
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example-projects/demo4-scale-out-lb-in-aws-destroy.py
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@ -1,3 +1,6 @@
import configparser
from os.path import expanduser
# import getpass
# import os
# import libcloud.security
@ -12,33 +15,17 @@ from libcloud.loadbalancer.base import Member, Algorithm
from libcloud.loadbalancer.types import Provider as loadbalancer_Provider
from libcloud.loadbalancer.providers import get_driver as loadbalancer_get_driver
# reqs:
# services: EC2 (nova, glance, neutron)
# resources: 2 instances, 2 elastic ips (1 keypair, 2 security groups)
# The image to look for and use for the started instance
# ubuntu_image_name = 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20200408'
ubuntu_image_id = "ami-085925f297f89fce1" # local ami id for resent ubuntu 18.04 20200408 in us-west-1
# The public key to be used for SSH connection, please make sure, that you have the corresponding private key
#
# id_rsa.pub should look like this (standard sshd pubkey format):
# ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAw+J...F3w2mleybgT1w== user@HOSTNAME
keypair_name = 'srieger-pub'
pub_key_file = '~/.ssh/id_rsa.pub'
flavor_name = 't2.nano'
home = expanduser("~")
# default region
# region_name = 'eu-central-1'
# region_name = 'ap-south-1'
# AWS Educate only allows us-east-1 see our AWS classroom at https://www.awseducate.com
# e.g., https://www.awseducate.com/student/s/launch-classroom?classroomId=a1v3m000005mNm6AAE
# AWS Academy Labs only allow us-east-1 see our AWS Academy Lab Guide, https://awsacademy.instructure.com/login/
region_name = 'us-east-1'
# keypairs are kept and not deleted, they do not cost anything anyway
def main():
###########################################################################
@ -47,17 +34,18 @@ def main():
#
###########################################################################
# see AWS Educate classroom, Account Details
# see AWS Academy Lab for Account Details
# read credentials from file
config = configparser.ConfigParser()
config.read_file(open(home + '/.aws/credentials'))
aws_access_key_id = config['default']['aws_access_key_id']
aws_secret_access_key = config['default']['aws_secret_access_key']
aws_session_token = config['default']['aws_session_token']
# aws_access_key_id = "ASIAX..."
# aws_secret_access_key = "eGwE12j..."
# aws_session_token = "FwoGZXIvYXdzEK///////////wEaDE..."
# access_id = getpass.win_getpass("Enter your access_id:")
# secret_key = getpass.win_getpass("Enter your secret_key:")
# session_token = getpass.win_getpass("Enter your session_token:")
# access_id = "ASIAU..."
# secret_key = "7lafW..."
# session_token = "IQoJb3JpZ...EMb//..."
access_id = "ASIA5ML7..."
secret_key = "76lAjn..."
session_token = "IQoJb3JpZ2luX2VjEBc..."
###########################################################################
#
@ -66,9 +54,9 @@ def main():
###########################################################################
elb_provider = loadbalancer_get_driver(loadbalancer_Provider.ELB)
elb_conn = elb_provider(access_id,
secret_key,
token=session_token,
elb_conn = elb_provider(aws_access_key_id,
aws_secret_access_key,
token=aws_session_token,
region=region_name)
print("Deleting previously created load balancers in: " + str(elb_conn.list_balancers()))
@ -83,9 +71,9 @@ def main():
###########################################################################
provider = compute_get_driver(compute_Provider.EC2)
conn = provider(key=access_id,
secret=secret_key,
token=session_token,
conn = provider(key=aws_access_key_id,
secret=aws_secret_access_key,
token=aws_session_token,
region=region_name)
###########################################################################
@ -102,7 +90,7 @@ def main():
print('Destroying Instance: %s' % instance.name)
conn.destroy_node(instance)
# wait until all nodes are destroyed to be able to remove depended security groups
# wait until all nodes are destroyed to be able to remove dependent security groups
nodes_still_running = True
while nodes_still_running:
nodes_still_running = False
@ -115,19 +103,30 @@ def main():
nodes_still_running = True
print('There are still instances running, waiting for them to be destroyed...')
# delete security groups, respecting dependencies (hence deleting 'control' and 'services' first)
# delete security groups
for group in conn.ex_list_security_groups():
if group in ['control', 'services']:
# services depends on worker and api, so delete services first...
if group in ['services']:
print('Deleting security group: %s' % group)
conn.ex_delete_security_group(group)
# now we can delete security groups 'api' and 'worker', as 'control' and 'api' depended on them, otherwise AWS will
# throw DependencyViolation: resource has a dependent object
for group in conn.ex_list_security_groups():
if group in ['api', 'worker']:
# control depends on worker, so delete control before worker...
if group in ['control']:
print('Deleting security group: %s' % group)
conn.ex_delete_security_group(group)
for group in conn.ex_list_security_groups():
if group in ['worker', 'api']:
print('Deleting security group: %s' % group)
conn.ex_delete_security_group(group)
# release elastic ips
for elastic_ip in conn.ex_describe_all_addresses():
if elastic_ip.instance_id is None:
print('Releasing unused elastic ip %s' % elastic_ip)
conn.ex_release_address(elastic_ip, domain=elastic_ip.domain)
if __name__ == '__main__':
main()