Continuous Testing With Terraform
- 1. Continuous Testing Alberto López González
- 2. Overview • Continuous Testing refers to the process of testing early, often, in an automated way usually triggered by any change on the code. • The purpose of using it is to reduce the time for obtaining feedback on the code quality that could show any business risk. • It doesn’t require any manual intervention to start, it is part of the continuous delivery process. • Continuous Testing relies on Test Automation
- 3. Advantages • Faster feedback regarding the level of confidence / risks related to a build. • Avoid advancing to next stages, like unnecessary deployments / testing rounds when build has been identified not ready. • Helps organizing on identifying the higher risk items, in terms of the business goals. • It could help to provide some useful metrics from the outputs of the generated tests.
- 4. Adding Terraform • It allow us to create, change and improve our current infrastructure. • As a tool is cloud-agnostic, it manages specific providers for the most common clouds, so we can work with different cloud platforms in a single project. • It uses the concept of Infrastructure As Code, allowing us to define our desired infrastructure writing code that can be reused or parametrized, adding predictability not only to the functional requirements of our application. • It allow us to keep track of our infrastructure in order to modify it or destroy it with a single command.
- 5. Practical Example Continue Testing Pipeline
- 6. Tools / Languages / Frameworks • GIT: Control version tool where our code repositories are created. • Java (Spring Boot): Programming language of our web application. • Gradle / Maven: Frameworks for building / managing our executions. • Jenkins: CI/CD tool for creating the definition and manage the execution of our automated pipelines. • Docker: Technology for creating portable containers of our application. • Terraform: Tool for managing our infrastructure with code. • Selenium / TestNG / Rest Assured: Java based frameworks used for creating our automated tests. • Shell scripting: Command line interpreter for executing some operations.
- 7. Feature / Code Change Source Control Build Artifact Create / Push Image Create Temporary Infrastructure and Deploy Execute Automated Tests Destroy Temporary Infrastructure Tests Passed ? Deploy to Real Environment Notify Users About Tests Failure
- 8. Internet Load Balancer DEV Container Task Service EC2 Instance ECS Agent ECS Cluster (DEV) Load Balancer QA VPC Region Container Task Service EC2 Instance ECS Agent ECS Cluster (QA)
- 9. Pipeline Example Code Repositories • Web application: https://github.com/albertolop85/gs-spring-boot • Terraform: https://github.com/albertolop85/basic-terraform-webapp • Automated Tests: https://github.com/albertolop85/selenium-training