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cloud-computing-msc-ai-examples
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changed lambda counter demo to work with AWS educate accounts

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Sebastian Rieger 3 years ago
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a2942f3d4a
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3 changed files with 33 additions and 9 deletions
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  1. 6
      example-projects/counter-demo/aws-lambda/lambda_function.py
  2. 29
      example-projects/counter-demo/aws-lambda/start.py
  3. 7
      example-projects/counter-demo/aws-lambda/stop.py

6
example-projects/counter-demo/aws-lambda/lambda_function.py
View File

@ -5,7 +5,7 @@ import boto3
def lambda_handler(event, context): def lambda_handler(event, context):
s3_client = boto3.client('s3') s3_client = boto3.client('s3')
response = s3_client.get_object(Bucket='vertsys-counter', Key='eu-central-1')
response = s3_client.get_object(Bucket='cloudcomp-counter', Key='us-east-1')
counter = int(response['Body'].read().decode('utf-8')) counter = int(response['Body'].read().decode('utf-8'))
@ -20,13 +20,13 @@ def lambda_handler(event, context):
if incr is not 0: if incr is not 0:
counter = counter + incr counter = counter + incr
response = s3_client.put_object(Bucket='vertsys-counter', Key='eu-central-1', Body=str(counter))
response = s3_client.put_object(Bucket='cloudcomp-counter', Key='us-east-1', Body=str(counter))
output = ('<html><head><title>TCPTimeCounter REST Service</title>\n' output = ('<html><head><title>TCPTimeCounter REST Service</title>\n'
'<meta http-equiv="refresh" content="5"/></head><body>\n' '<meta http-equiv="refresh" content="5"/></head><body>\n'
'<h2>HS Fulda - TCPTimeCounter REST Service</h2>\n' '<h2>HS Fulda - TCPTimeCounter REST Service</h2>\n'
'<p><b>HTML-Output:</b> ' + str(counter) + '</p></body>\n' '<p><b>HTML-Output:</b> ' + str(counter) + '</p></body>\n'
'<form method=POST action="/default/cloudcomp-counter-demo">\n'
'<form method=POST action="">\n'
'<input type="hidden" name="input" value="1">\n' '<input type="hidden" name="input" value="1">\n'
'<input type="submit" value="Increment"></form>\n' '<input type="submit" value="Increment"></form>\n'
# '<hr><b>Lambda Event:</b><br>' + repr(event) + '\n' # '<hr><b>Lambda Event:</b><br>' + repr(event) + '\n'

29
example-projects/counter-demo/aws-lambda/start.py
View File

@ -7,10 +7,15 @@ import zipfile
# #
################################################################################################ ################################################################################################
region = 'eu-central-1'
functionName = 'cloudcomp-counter-lambda-demo'
roleName = 'arn:aws:iam::309000625112:role/service-role/cloudcomp-counter-demo-role-6rs7pah3'
# you need to create a bucket in S3, here in this demo it is called "cloudcomp-counter", but
# bucket names need to be world wide unique ;) The demo looks for a file that is named
# "us-east-1" (same as our default region) in the bucket and expects a number in it to increase
# region = 'eu-central-1'
region = 'us-east-1'
functionName = 'cloudcomp-counter-lambda-demo'
# roleName = 'arn:aws:iam::309000625112:role/service-role/cloudcomp-counter-demo-role-6rs7pah3'
roleName = 'arn:aws:iam::919927306708:role/cloudcomp-s3-access'
################################################################################################ ################################################################################################
# #
@ -21,6 +26,7 @@ roleName = 'arn:aws:iam::309000625112:role/service-role/cloudcomp-counter-demo-r
client = boto3.setup_default_session(region_name=region) client = boto3.setup_default_session(region_name=region)
lClient = boto3.client('lambda') lClient = boto3.client('lambda')
apiClient = boto3.client("apigatewayv2")
print("Deleting old function...") print("Deleting old function...")
@ -40,6 +46,7 @@ zf = zipfile.ZipFile('lambda-deployment-archive.zip', 'w', zipfile.ZIP_DEFLATED)
zf.write('lambda_function.py') zf.write('lambda_function.py')
zf.close() zf.close()
lambdaFunctionARN = ""
with open('lambda-deployment-archive.zip', mode='rb') as file: with open('lambda-deployment-archive.zip', mode='rb') as file:
zipfileContent = file.read() zipfileContent = file.read()
@ -53,3 +60,19 @@ with open('lambda-deployment-archive.zip', mode='rb') as file:
Handler='lambda_function.lambda_handler', Handler='lambda_function.lambda_handler',
Publish=True, Publish=True,
) )
lambdaFunctionARN = response['FunctionArn']
print("creating API gateway...")
print("------------------------------------")
#apiArn = ""
response = apiClient.create_api(
Name=functionName + '-api',
ProtocolType='HTTP',
Target=lambdaFunctionARN
)
#apiArn=response['']
#response = lClient.create_event_source_mapping(
# EventSourceArn=apiArn,
#)

7
example-projects/counter-demo/aws-lambda/stop.py
View File

@ -7,10 +7,11 @@ import zipfile
# #
################################################################################################ ################################################################################################
region = 'eu-central-1'
# region = 'eu-central-1'
region = 'us-east-1'
functionName = 'cloudcomp-counter-lambda-demo' functionName = 'cloudcomp-counter-lambda-demo'
roleName = 'arn:aws:iam::309000625112:role/service-role/cloudcomp-counter-demo-role-6rs7pah3'
# roleName = 'arn:aws:iam::309000625112:role/service-role/cloudcomp-counter-demo-role-6rs7pah3'
roleName = 'arn:aws:iam::919927306708:role/cloudcomp-s3-access'
################################################################################################ ################################################################################################
# #

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