AWS Lambda sample codes

A few of the sample AWS Lambda function codes for common use-cases with Amazon EC2, AWS Lambda & Amazon SNS using Python runtime.

EC2

1. Start/Stop EC2 instances using CloudWatch Event Trigger - start_stop_ec2_instances_with_cloudwatch_event.py

2. Describe EC2's metadata in a region - Associated subnets, Instance ID & NACL-ID for a target VPC - describe_ec2_securitygroup.py

3. Describe all AMIs for your account across all regions - describe_ami.py

Lambda

1. Check Async queue congestions and delays in processing async events - get_async_invoke_delay.py

2. Delete orphaned Event Source Mappings - clean_orphaned_event_source_mappings.py

3. Extract Lambda code from entire deployment package - extract_deployment_package_without_layers

4. Get Lambda's true async delay - get_async_invoke_delay.py

5. Get underlying Lambda's CPU hardware, /tmp storage, os-release and it's contents - get_cpu_info.py

6. Test HTTP connection for your Lambda function inside VPC - http_connection_test.py

7. List code storage for all Lambda functions in a region - lambda_code_size_all_functions.py

8. List code storage for a function including all attached layers - lambda_code_size_including_layers.py

9. List all ENIs created by Lambda functions(s) - lambda_created_enis.py

10. Get Lambda dashboard metrics across all regions - lambda_dashboard.py

11. List Lambda function version(s) using an ENI - lambda_hyperplane_eni_checker.py

12. Create "Memory Used" Metrics for your Lambda functions - lambda_memory_plot.py

13. List all Lambda layers and it's info - list_layer_info.py

14. Get all functions using reserved or provisional concurrency in a region - reserved_concurrency.py

15. Lambda X-Ray examples - x_ray_sample.py

SNS

1. List all subscriptions tied to a topic in an account - list_account_topic_subscriptions.py

2. Programmatically create subscription filters for SNS - set_subscription_filters.py

3. Programmatically set SenderID while sending SMS text messages - sender_id.py

4. Programmatically set max price while sending SMS text messages - set_max_price.py

5. Get SMS month to date spend in USD - sms_month_to_date_spent_usd.py

6. SMS Dashboard - sms_dashboard.py

7. Send SMS with custom originating number - sms_with_custom_originating_number

Additional Information

• Refer to the individual .md files for additional information.

Built with

• Python3
• AWS
• Boto3 SDK

Missing Info / Bugs

• 😰 Something broken? Open an issue with a few sample inputs where it breaks. Screenshots help!

• More additional services/use-cases, open a new issue

Contributing

This is an iterative repository, I'll keep adding more sample codes for more use-cases as I come across them. I have tested all scripts using Python3.6 runtime inside Lambda under us-west-2 region, and most of this should work for all Python3 runtimes (Python 2.7 EOL: 😵).

• Fork repo
• Set runtime as Python3 (Python3.6 preferred)
• Send your awesome 🙌 Pull Request with code/.md changes
  • Follow Python's PEP8 coding standards.
  • Commit repo using the Seven Rules
• Your PR gets merged ✅ and a shoutout 📢

Looking for CLI samples?

• Head to https://github.com/shreyasgaonkar/aws-cli-code-samples

Repo structure:

$ tree
.
|-- CODE_OF_CONDUCT.md
|-- LICENSE
|-- README.md
|-- ec2-samples
|   |-- describe_ami
|   |   |-- README.md
|   |   `-- describe_ami.py
|   |-- describe_ec2_securitygroup
|   |   |-- README.md
|   |   `-- describe_ec2_securitygroup.py
|   `-- start_stop_ec2_instances_with_cloudwatch_event
|       |-- README.md
|       `-- start_stop_ec2_instances_with_cloudwatch_event.py
|-- lambda-layer
|   |-- README.md
|   |-- boto3.zip
|   |-- pandasnumpy.zip
|   |-- prettyTable.zip
|   |-- psycopg2.zip
|   |-- requests.zip
|   `-- x-ray.zip
|-- lambda-samples
|   |-- async_config_dashboard
|   |   |-- README.md
|   |   `-- async_config_dashboard.py
|   |-- clean_orphaned_event_source_mappings
|   |   |-- README.md
|   |   `-- clean_orphaned_event_source_mappings.py
|   |-- extract_deployment_package_without_layers
|   |   |-- README.md
|   |   `-- extract_deployment_package_without_layers.py
|   |-- get_async_invoke_delay
|   |   |-- README.md
|   |   `-- get_async_invoke_delay.py
|   |-- get_cpu_info
|   |   |-- README.md
|   |   `-- get_cpu_info.py
|   |-- http_connection_test
|   |   |-- README.md
|   |   `-- http_connection_test.py
|   |-- lambda_code_size_all_functions
|   |   |-- README.md
|   |   `-- lambda_code_size_all_functions.py
|   |-- lambda_code_size_including_layers
|   |   |-- README.md
|   |   `-- lambda_code_size_including_layers.py
|   |-- lambda_created_enis
|   |   |-- README.md
|   |   `-- lambda_created_enis.py
|   |-- lambda_dashboard
|   |   |-- README.md
|   |   `-- lambda_dashboard.py
|   |-- lambda_hyperplane_eni_checker
|   |   |-- README.md
|   |   `-- lambda_hyperplane_eni_checker.py
|   |-- lambda_memory_plot
|   |   |-- README.md
|   |   `-- lambda_memory_plot.py
|   |-- list_layer_info
|   |   |-- README.md
|   |   `-- list_layer_info.py
|   |-- reserved_concurrency
|   |   |-- README.md
|   |   `-- reserved_concurrency.py
|   `-- x_ray_sample
|       |-- README.md
|       `-- x_ray_sample.py
|-- sns-samples
|   |-- list_account_topic_subscriptions
|   |   |-- README.md
|   |   `-- list_account_topic_subscriptions.py
|   |-- sender_id
|   |   |-- README.md
|   |   `-- sender_id.py
|   |-- set_max_price_sms
|   |   |-- README.md
|   |   `-- set_max_price_sms.py
|   |-- set_subscription_filters
|   |   |-- README.md
|   |   `-- set_subscription_filters.py
|   |-- sms_dashboard
|   |   |-- README.md
|   |   `-- sms_dashboard.py
|   |-- sms_month_to_date_spent_usd
|   |   |-- README.md
|   |   `-- sms_month_to_date_spent_usd.py
|   `-- sms_with_custom_originating_number
|       |-- README.md
|       `-- sms_with_custom_originating_number.py
`-- tmp
    `-- images
        |-- AWSLambdaCloudWatchAsyncDelay.png
        |-- AWSLambdaCloudWatchMetric.png
        `-- AWSLambdaX-Ray.PNG