Book Image

Hands-On Continuous Integration and Delivery

By : Jean-Marcel Belmont
Book Image

Hands-On Continuous Integration and Delivery

By: Jean-Marcel Belmont

Overview of this book

Hands-On Continuous Integration and Delivery starts with the fundamentals of continuous integration (CI) and continuous delivery (CD) and where it fits in the DevOps ecosystem. You will explore the importance of stakeholder collaboration as part of CI/CD. As you make your way through the chapters, you will get to grips with Jenkins UI, and learn to install Jenkins on different platforms, add plugins, and write freestyle scripts. Next, you will gain hands-on experience of developing plugins with Jenkins UI, building the Jenkins 2.0 pipeline, and performing Docker integration. In the concluding chapters, you will install Travis CI and Circle CI and carry out scripting, logging, and debugging, helping you to acquire a broad knowledge of CI/CD with Travis CI and CircleCI. By the end of this book, you will have a detailed understanding of best practices for CI/CD systems and be able to implement them with confidence.
Table of Contents (18 chapters)

Using Workflows in CircleCI

Workflows in CircleCI are a way to run parallel build jobs and can be used to define a collection of jobs and to specify a job order. Let us add a workflows field to the go-template-example-with-circle-ci (https://github.com/packtci/go-template-example-with-circle-ci) configuration YML script:

version: 2
jobs:
build:
...
integration:
....
workflows:
version: 2
build_and_integration:
jobs:
- build
- integration

In this workflow, we create two parallel jobs called build and integration respectively. They are independent of each other and this will help speed up the build process.

Workflows in action in CircleCI Web UI

We can see the workflows in...