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DevOps with Kubernetes

You're reading from   DevOps with Kubernetes Accelerating software delivery with container orchestrators

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Product type Paperback
Published in Oct 2017
Publisher Packt
ISBN-13 9781788396646
Length 382 pages
Edition 1st Edition
Concepts
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Authors (3):
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Hui-Chuan Chloe Lee Hui-Chuan Chloe Lee
Author Profile Icon Hui-Chuan Chloe Lee
Hui-Chuan Chloe Lee
Hideto Saito Hideto Saito
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Hideto Saito
Cheng-Yang Wu Cheng-Yang Wu
Author Profile Icon Cheng-Yang Wu
Cheng-Yang Wu
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Toc

Working with Dockerfile

When assembling an image, whether by a Docker commit or export, optimizing the outcome in a managed way is a challenge, let alone integrating with a CI/CD pipeline. On the other hand, Dockerfile represents the building task in the form of as-a-code, which significantly reduces the complexities of building a task for us. In this section, we will describe how to map Docker commands into a Dockerfile and go a step further to optimizing it.

Writing your first Dockerfile

A Dockerfile consists of a series of text instructions to guide the Docker daemon to form a Docker image. Generally, a Dockerfile is and must be starting with the directive FROM, and follows zero or more instructions. For example, we may...

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