Doxx.tar.gz

In this course, you will learn how packaging software works in Alpine Linux, the most popular Docker Linux distribution.

You’ll first learn the basics: what is Alpine Linux and what are its advantages over other distributions, especially in a Docker environment? Next, you’ll cover the basics of packaging software: what are apk and APKBUILD, where should files be installed, and how can we create basic APKBUILDs and submit them for inclusion in Alpine Linux official repositories? You’ll also learn what makes an Alpine Linux package low or high quality. Finally, you’ll explore APKBUILDs for different programming languages and finish by creating your own private Alpine Linux repository with complex subpackages. 

By the end of the course, you will be able to create APKBUILDs which easily pass Alpine’s quality assurance. Overall, this course will increase your understanding of Alpine Linux and Linux in general and help you improve your DevOps skills.

Creating Alpine Linux Packages

## Preface

Sometimes, we have to package a project that hasn't made an official release yet and only makes its `git` repository available to us. In such cases, we need to define a `snapshot()` function since it’s not allowed to clone the repository in an `APKBUILD` to ensure reproducibility.

## The `snapshot()` function

This function is responsible for cloning the sources of a project, packaging them into a tarball, and uploading them to Alpine Linux servers. This way, it's guaranteed that the tarball won't change and that it won't be deleted (as could happen in a `git` repository via a force push). A typical `snapshot()` function looks like this in an `APKBUILD`:

# Preface

Sometimes, we have to package a project that hasn't made an official release yet and only makes its `git` repository available to us. In such cases, we need to define a `snapshot()` function since it’s not allowed to clone the repository in an `APKBUILD` to ensure reproducibility.

# The `snapshot()` function

This function is responsible for cloning the sources of a project, packaging them into a tarball, and uploading them to Alpine Linux servers. This way, it's guaranteed that the tarball won't change and that it won't be deleted (as could happen in a `git` repository via a force push). A typical `snapshot()` function looks like this in an `APKBUILD`:

Get introduced to the snapshot() function and what it can do.

Introduction

Using abuild

Alpine's FHS

Creating Your First APKBUILD

Creating More Complex APKBUILDs

Hosting Our Own APK Repository

Additional APKBUILD Examples

Conclusion

Snapshots

Preface

The `snapshot()` function