4 changed files with 171 additions and 0 deletions
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41example-projects/counter-demo/aws-lambda/invoke-function.py
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42example-projects/counter-demo/aws-lambda/lambda_function.py
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55example-projects/counter-demo/aws-lambda/start.py
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33example-projects/counter-demo/aws-lambda/stop.py
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import boto3 |
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import json |
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################################################################################################ |
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# |
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# Configuration Parameters |
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# |
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################################################################################################ |
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region = 'eu-central-1' |
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functionName = 'cloudcomp-counter-lambda-demo' |
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################################################################################################ |
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# |
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# boto3 code |
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# |
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################################################################################################ |
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client = boto3.setup_default_session(region_name=region) |
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lClient = boto3.client('lambda') |
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print("Invoking function...") |
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print("------------------------------------") |
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try: |
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response = lClient.invoke( |
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FunctionName=functionName, |
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Payload='{ "input": "1" }' |
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) |
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except lClient.exceptions.ResourceNotFoundException: |
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print('Function not available. No need to delete it.') |
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streamingBody = response['Payload'] |
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result = streamingBody.read() |
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print(json.dumps(response, indent=4, sort_keys=True, default=str)) |
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print('Payload:\n' + str(result)) |
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# import json |
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import base64 |
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import boto3 |
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def lambda_handler(event, context): |
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s3_client = boto3.client('s3') |
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response = s3_client.get_object(Bucket='vertsys-counter', Key='eu-central-1') |
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counter = int(response['Body'].read().decode('utf-8')) |
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debug = "" |
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incr = 0 |
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if 'body' in event: |
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body = str(base64.b64decode(event['body']).decode("utf-8")) |
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if body.startswith('input'): |
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incr = int(body.rsplit('=')[1]) |
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elif 'input' in event: |
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incr = int(event['input']) |
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if incr is not 0: |
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counter = counter + incr |
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response = s3_client.put_object(Bucket='vertsys-counter', Key='eu-central-1', Body=str(counter)) |
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output = ('<html><head><title>TCPTimeCounter REST Service</title>\n' |
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'<meta http-equiv="refresh" content="5"/></head><body>\n' |
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'<h2>HS Fulda - TCPTimeCounter REST Service</h2>\n' |
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'<p><b>HTML-Output:</b> ' + str(counter) + '</p></body>\n' |
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'<form method=POST action="/default/cloudcomp-counter-demo">\n' |
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'<input type="hidden" name="input" value="1">\n' |
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'<input type="submit" value="Increment"></form>\n' |
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# '<hr><b>Lambda Event:</b><br>' + repr(event) + '\n' |
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# '<hr><b>Lambda Context:</b><br>' + repr(context) + '\n' |
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'</body></html>\n') |
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return { |
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'statusCode': 200, |
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'headers': { |
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'Content-Type': 'text/html', |
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}, |
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'body': output |
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} |
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import boto3 |
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import zipfile |
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################################################################################################ |
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# |
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# Configuration Parameters |
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# |
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################################################################################################ |
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region = 'eu-central-1' |
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functionName = 'cloudcomp-counter-lambda-demo' |
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roleName = 'arn:aws:iam::309000625112:role/service-role/cloudcomp-counter-demo-role-6rs7pah3' |
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################################################################################################ |
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# |
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# boto3 code |
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# |
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################################################################################################ |
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client = boto3.setup_default_session(region_name=region) |
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lClient = boto3.client('lambda') |
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print("Deleting old function...") |
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print("------------------------------------") |
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try: |
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response = lClient.delete_function( |
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FunctionName=functionName, |
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) |
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except lClient.exceptions.ResourceNotFoundException: |
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print('Function not available. No need to delete it.') |
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print("creating new function...") |
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print("------------------------------------") |
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zf = zipfile.ZipFile('lambda-deployment-archive.zip', 'w', zipfile.ZIP_DEFLATED) |
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zf.write('lambda_function.py') |
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zf.close() |
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with open('lambda-deployment-archive.zip', mode='rb') as file: |
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zipfileContent = file.read() |
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response = lClient.create_function( |
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FunctionName=functionName, |
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Runtime='python3.8', |
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Role=roleName, |
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Code={ |
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'ZipFile': zipfileContent |
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}, |
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Handler='lambda_function.lambda_handler', |
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Publish=True, |
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) |
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@ -0,0 +1,33 @@ |
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import boto3 |
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import zipfile |
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################################################################################################ |
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# |
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# Configuration Parameters |
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# |
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################################################################################################ |
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region = 'eu-central-1' |
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functionName = 'cloudcomp-counter-lambda-demo' |
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roleName = 'arn:aws:iam::309000625112:role/service-role/cloudcomp-counter-demo-role-6rs7pah3' |
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################################################################################################ |
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# |
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# boto3 code |
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# |
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################################################################################################ |
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client = boto3.setup_default_session(region_name=region) |
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lClient = boto3.client('lambda') |
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print("Deleting old function...") |
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print("------------------------------------") |
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try: |
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response = lClient.delete_function( |
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FunctionName=functionName, |
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) |
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except lClient.exceptions.ResourceNotFoundException: |
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print('Function not available. No need to delete it.') |
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