Perl and Amazon Web Services
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The document presents a talk given by Sören Lund at the London Perl Workshop 2019, focusing on cloud computing and the use of Amazon Web Services (AWS) with Perl. It covers AWS resources like EC2, S3, and Lambda, as well as running Perl on EC2 instances and creating Perl runtimes for AWS Lambda. The document also introduces cloud computing concepts, including different service models and the AWS management interface.
![User Data in EC2 CloudFormation templates
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"cpanm Acme::Be::Modernn"
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Perl and Amazon Web Services
- 1. Perl and Amazon Web Services London Perl Workshop 2019 1
- 2. Introduction In this talk I will ● give a very short introduction to cloud computing in general ● introduce a few AWS resources (CloudFormation, EC2, S3, Lambda) ● demonstrate running Perl on an EC2 instance ● demonstrate using AWS::Lambda to create a Perl runtime for AWS Lambda 2
- 3. But, first About me: ● My name is Søren Lund and I’m from Denmark ● I’ve been a SW developer for more than twenty years ● I’ve used many programming languages (C/C++, Perl, Java, JavaScript, …) ● I’ve also worked a lot with build automation, CI/CD and automated tests ● I’ve worked as a AWS consultant for the last couple of years 3
- 4. Disclaimer ● I’ve no experience running Perl on AWS! However, ● I know Perl ● I know AWS Or, as the meme goes ● “Trust Me, I’m an Engineer” 4
- 6. Cloud Computing “Cloud computing is the on-demand availability of computer system resources, especially data storage and computing power, without direct active management by the user.” “Cloud computing was popularized with Amazon.com releasing its Elastic Compute Cloud product in 2006.” From https://en.wikipedia.org/wiki/Cloud_computing 6
- 7. Service Models ● Infrastructure as a service (IaaS) ● Platform as a service (PaaS) ● Software as a service (SaaS) ● Serverless computing ● Function as a service (FaaS) 7
- 8. Infrastructure as a service (IaaS) “...online services that provide high-level APIs used to dereference various low- level details of underlying network infrastructure like physical computing resources, location, data partitioning, scaling, security, backup etc.” From https://en.wikipedia.org/wiki/Infrastructure_as_a_service 8
- 9. Function as a service (FaaS) “...category of cloud computing services that provides a platform allowing customers to develop, run, and manage application functionalities without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.” From https://en.wikipedia.org/wiki/Function_as_a_service 9
- 11. Amazon Web Service (AWS) ● From 2000 to 2005 Amazon.com works on infrastructure ● AWS is launched on March 19 2006, first service is Amazon S3 (Simple Storage Service) ● Amazon SQS (Simple Queue Service) follows on July 13 ● And on August 25 Amazon EC2 (Elastic Compute Cloud) is launched From https://en.wikipedia.org/wiki/Timeline_of_Amazon_Web_Services 11
- 12. AWS now has many more services “...137 top level services spread across 23 categories… many of these top level services further expand into multiple sub services” (January 2019) From https://www.quora.com/How-many-AWS-services-are-there See https://aws.amazon.com/products/ 12
- 13. Getting started with AWS Sign up at https://aws.amazon.com/ Free tier: https://aws.amazon.com/free/ ● Always free - e.g. 1 million free requests on AWS Lambda every month ● 12 month free - e.g. 750 hours EC2 t2.micro instance usage every month ● Trials - e.g. 250 device minutes on AWS Device Farm 13
- 14. AWS Management Console From the “Console” you can create/modify/maintain/destroy resources. See https://console.aws.amazon.com/console/home 14
- 15. Launching an EC2 instance from the Console 15
- 16. AWS CLI The AWS CLI is a uber command “aws”, that can be used to manage your AWS resources and services. ● Written in Python (pip install awscli) ● Enables you to write scripts that creates/modifies/maintains/destroys resources ● You need to create credentials (tokens) in the Console to use the CLI See https://aws.amazon.com/cli/ 16
- 17. AWS SDKs Official SDKs providing APIs for AWS services are available in ● JavaScript ● Python ● PHP ● .NET ● Ruby ● Java ● Go ● Node.js ● C++ See https://aws.amazon.com/tools/ Image by Jonny Lindner from Pixabay ? 17
- 18. Paws ● Perl SDK for AWS ● Built by automatically converting Python code into Perl code ● Also includes CLI (paws) ● https://metacpan.org/pod/Paws 18 Image by Jonny Lindner from Pixabay ❤
- 19. AWS CloudFormation ● Infrastructure as code ● Define resources in templates (JSON or YAML) or visual designer ● Deploy template using CloudFormation using the Consol, CLI or API ● A deployed template is called a Stack 19
- 20. Basic Anatomy of a CloudFormation Template { "AWSTemplateFormatVersion" : "2010-09-09", "Description" : "", "Parameters" : { }, "Resources" : { }, "Outputs" : { } } See https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-anatomy.html 20
- 21. Running Perl on an EC2 instance 21
- 22. Creating a CloudFormation Templates AWS has lots of examples and snippets. ● Examples: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/cfn-sample-templates.html ● Snippets: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/CHAP_TemplateQuickRef.html There’s also a linter for CloudFormation Templates: ● See https://github.com/aws-cloudformation/cfn-python-lint 22
- 23. Amazon EC2 ● EC2 provides generic computer virtualization ● When using EC2 you will boot an Amazon Machine Image (AMI) to create a running machine, called an instance ● Amazon maintains an AMI called Amazon Linux based on CentOS ○ version 1 has Perl 5.16.3 ○ version 2 has no Perl ● Run it locally: docker run -it amazonlinux bash 23
- 24. User Data in EC2 CloudFormation templates "UserData": { "Fn::Base64": { "Fn::Join": [ "", [ "#!/bin/bashn", "curl -L http://cpanmin.us | perl - --self-upgraden", "cpanm Acme::Be::Modernn" ]] } } 24
- 25. Demo time Code is available on GitHub. See https://github.com/soren/perl-and-aws 25
- 26. AWS::Lambda 26
- 27. AWS Lambda “...an event-driven, serverless computing platform provided by Amazon as a part of the Amazon Web Services. It is a computing service that runs code in response to events and automatically manages the computing resources required by that code. It was introduced in November 2014.” From https://en.wikipedia.org/wiki/AWS_Lambda 27
- 28. Console demo 28 Using the AWS Lambda runtime provided by ● https://metacpan.org/pod/AWS::Lambda To execute the following: sub handle { my ($payload, $context) = @_; my $result = encode_json("Hello from Perl!"); return +{ statusCode => 200, body => $result }; }