rights reserved. DevOps Practices • Monitoring and Logging • Track and analyze metrics and logs • Understand real-time performance of infrastructure and application
rights reserved. Development transformation at Amazon: 2001–2002 monolithic application + teams 2001 Lesson learned: decompose for agility 2002 microservices + 2 pizza teams
rights reserved. Automated actions and transitions; from check-in to production Development benefits: • Faster • Safer • Simplification & standardization • Visualization of the process
rights reserved. This has continued to work out really well: In 2014: • Thousands of service teams across Amazon • Building microservices • Practicing continuous delivery • Many environments (staging, beta, production) 50 million deploys
rights reserved. This has continued to work out really well: Every year at Amazon, we perform a survey of all our software developers. The 2014 results found only one development tool/service could be correlated statistically with happier developers: Our pipelines service! continuous delivery == happier developers!
rights reserved. Microservice development lifecycle developers services monitor release test build delivery pipelines monitor release test build monitor release test build monitor release test build monitor release test build monitor release test build
rights reserved. What changes do you need to make to adopt these best practices? Serverless No provisioning/management Automatic scaling Pay for value billing Availability and resiliency Microservices Componentization Business capabilities Products not projects Infrastructure automation DevOps Cultural philosophies Cross-disciplinary teams CI/CD Automation tools DEV OPS Architectural patterns Operational Model Software Delivery
rights reserved. Approaches to modern application development • Simplify environment management • Reduce the impact of code changes • Automate operations • Accelerate the delivery of new, high-quality services • Gain insight across resources and applications • Protect customers and the business
rights reserved. Approaches to modern application development • Simplify environment management with serverless technologies • Reduce the impact of code changes with microservice architectures • Automate operations by modeling applications & infrastructure as code • Accelerate the delivery of new, high-quality services with CI/CD • Gain insight across resources and applications by enabling observability • Protect customers and the business with end-to-end security & compliance
rights reserved. Approaches to modern application development • Simplify environment management with serverless technologies • Reduce the impact of code changes with microservice architectures • Automate operations by modeling applications & infrastructure as code • Accelerate the delivery of new, high-quality services with CI/CD • Gain insight across resources and applications by enabling observability • Protect customers and the business with end-to-end security & compliance
rights reserved. Approaches to modern application development • Simplify environment management with serverless technologies • Reduce the impact of code changes with microservice architectures • Automate operations by modeling applications & infrastructure as code • Accelerate the delivery of new, high-quality services with CI/CD • Gain insight across resources and applications by enabling observability • Protect customers and the business with end-to-end security & compliance
rights reserved. Release process stages Source Build Test Production • Integration tests with other systems • Load testing • UI tests • Security testing • Check-in source code such as .java files • Peer review new code • Compile code • Unit tests • Style checkers • Create container images and function deployment packages • Deployment to production environments • Monitor code in production to quickly detect errors
rights reserved. Infrastructure as code ✓ Make infrastructure changes repeatable and predictable ✓ Release infrastructure changes using the same tools as code changes ✓ Replicate production in a staging environment to enable continuous testing
rights reserved. AWS CloudFormation • Infrastructure as code (IaC) • Provides a common language for you to describe and provision all the infrastructure resources in your cloud environment • Build and rebuild your infrastructure and applications, without having to perform manual actions or write custom scripts https://aws.amazon.com/cloudformation/
rights reserved. Model function environments with AWS Serverless Application Model (SAM) • Open source framework for building serverless applications on AWS • Shorthand syntax to express functions, APIs, databases, and event source mappings • Transforms and expands SAM syntax into AWS CloudFormation syntax on deployment • Supports all AWS CloudFormation resource types https://aws.amazon.com/serverless/sam/
rights reserved. Shorten the learning curve with AWS Cloud Development Kit (CDK) Late 2020 Brings cloud infrastructure to developers in ways the can understand • Build cloud infrastructure with the languages they already know • Use their existing tools and workflows • Helpful abstractions that remove the need to learn the details • Vibrant and fast-growing community of developers
rights reserved. Continuous integration goals 1. Automatically kick off a new release when new code is checked in 2. Build and test code in a consistent, repeatable environment 3. Continually have an artifact ready for deployment 4. Continually close feedback loop when build fails
rights reserved. AWS CodePipeline • Continuous delivery service for fast and reliable application updates • Model and visualize your software release process • Builds, tests, and deploys your code every time there is a code change • Integrates with third-party tools and AWS
rights reserved. AWS CodeBuild • Fully managed build service that compiles source code, runs tests, and produces software packages • Scales continuously and processes multiple builds concurrently • No build servers to manage • Pay by the minute, only for the compute resources you use • Monitor builds through CloudWatch Events
rights reserved. Continuous integration goals 1. Automatically kick off a new release when new code is checked in 2. Build and test code in a consistent, repeatable environment 3. Continually have an artifact ready for deployment 4. Continually close feedback loop when build fails
rights reserved. Continuous deployment goals 1. Automatically deploy new changes to staging environments for testing 2. Deploy to production safely without impacting customers 3. Deliver to customers faster: Increase deployment frequency, and reduce change lead time and change failure rate
rights reserved. AWS CodeDeploy • Automates code deployments to any instance and Lambda • Handles the complexity of updating your applications • Avoid downtime during application deployment • Roll back automatically if failure detected • Deploy to Amazon EC2, Lambda, or on-premises servers
rights reserved. CodeDeploy-Lambda deployments • Shifts traffic using Lambda function weighted aliases • Choose canary (“shift 10% of traffic for 10 minutes, then shift rest”) or linear (“shift 10% more traffic every 10 minutes”) • Validation “hooks” enable testing at each stage of the deployment • Fast rollback in seconds if case of hook failure or CloudWatch alarms • Monitor deployment status and history via console, API, Amazon Simple Notification Service (Amazon SNS) notifications, and CloudWatch Events
rights reserved. CodeDeploy – Lambda canary deployment API Gateway Lambda function weighted alias “live” v1 code 100% Run PreTraffic hook against v2 code before it receives traffic v2 code 0%
rights reserved. CodeDeploy – Lambda canary deployment API Gateway Lambda function weighted alias “live” v1 code 90% Wait for 10 minutes, roll back in case of alarm v2 code 10%
rights reserved. CodeDeploy – Lambda canary deployment API Gateway Lambda function weighted alias “live” v1 code 0% Run PostTraffic hook and complete deployment v2 code 100%
rights reserved. Continuous deployment goals 1. Automatically deploy new changes to staging environments for testing 2. Deploy to production safely without impacting customers 3. Deliver to customers faster: Increase deployment frequency, and reduce change lead time and change failure rate
rights reserved. Takeaways 1. No one knows what is DevOps 2. Decompose for Agility 3. Use the right tool for the right job – and focus your efforts on your value not everything else around it!
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