Developer Theory

Question 1

Developer Theory

T or F

What is CI/CD?

• CI and CD are best practices for software development and deploy
• They enable frequent sw changes to be applied whilst maintaining system and service stability
• companies like AWS, Netflix, Google, and Facebook have pioneered this approach to releasing code, successfully applying thousands of changes per day/.

Answer 1

T, T, T

Question 2

Continuous integration workflow

T or F

• multiple developers working on diff features or bug fixes
• all contributing to same app
• sharing same code repo
• frequently pushing their updates into the shared repo - at least daily
• code repo integrated with build management systems
• code changes trigger with automated build
• we need a way to ensure that any code change does nto break the build, or introduce new bugs in the app.
• the test system runs automated tests on teh newly built app
• identifies any bugs, preventing issues from being introduced in teh master code
• CI forcuses on small code changes, which frequently commited into the main repo once they have been successfully tested.
• CD can mean either Continusous delivery or continuous deployment
• Cd is a dev practice when merges changes are auto built, tested, and prepared for release into a staging and eventually prod env.
• there is usually a manual decision process to initial deployment of the new code.

Answer 2

All true

Question 3

CD takes the idea of automation on step further and automatically deploys the new code following successful testing, eliminating any manual steps.

• the new code is automatically release as soon as it passes through the stages of your release process. (build, test, package)
• small changes are release easrly and frequently
• both practices require the build, test, and deploy proce4ss to be fully automated but CD also automates the release process as well.

Answer 3

All tue

Question 4

______ is an open source tech which allows you to create apps based on either Linux or Windows containers.

Answer 4

Docker

Question 5

A _____ is a lightweight standalone executable software apckage which includes everything the software needs to run code, runtime env., libraries, env settings.

Answer 5

containers

Question 6

______ is a full managed build service which runs a ser of commands that you define (ie: compiles code, run tests, and produces artifacts that you aready to deploy)

Answer 6

CodeBuild

Question 7

What do these commands do?

docker build -t myimagerepo

docker tag myimagerepo:latest

Answer 7

They are docker commands to build, tag (apply an alias) and push your docker image to the ECR repo

Question 8

use _____ to define the build commands and settings used by CodeBUild to run your build

Answer 8

buildspec.yml

Question 9

You can override the settings in _____ by adding your own commands i the console when you launch the build.

Answer 9

buildspec.yml

Question 10

if your build fails, check the build logs in the _____ console and you can slo view the full ____ log in cloudwatch

Answer 10

codebuild