Delve into the Debian package ecosystem, learn about repositories, package tools, and build packages using the fpm tool, enhancing your deployment skills and integration efficiency.

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Packages are fundamental units of software deployment in Debian and related operating systems. Packaging enables users to deploy your packages using the built-in tools of their operating system.

In this course, you’ll learn about the environment that Debian packages live in, including repositories, package management installation tools, source and binary packages, and the “upstream” concept. Then you’ll learn about the structure and metadata of packages and an efficient way to build Debian packages using the fpm tool. You’ll also learn to use the Debian Build System, including the tools used to create package skeletons and multiple packages from a single code base. You’ll finish with an introduction to repository and package management and integrity.

By the end of this course, you’ll have learned about the Debian package ecosystem and several ways to build and package. This will enable you to seamlessly integrate your packages into existing infrastructure and take your deployment skills to the next level.

Building Debian Packages from the Ground Up

# Key highlights

* A Debian repository is a collection of files and directories of a certain
structure. Often, several repositories share the same package files in
a `pool/` directory.

* Software for managing Debian repositories exists in several flavors based on
the use cases and workflows. They all need a GPG key for signing a repository
and typically third-party software like an HTTP server for making the repository available remotely.

* The `aptly` repository manager works with repositories from which we create
immutable snapshots that we can then merge, filter, and publish.

* The trust in the integrity of Debian repositories is secured by
a chain of cryptographic signatures. It starts with people asserting the
ownership of a key to a person and their legal name. The Debian
Developer can then sign a source package, which is uploaded to a build
server, and from there to a repository, which again uses cryptography to
ensure the integrity of a repository.

Let’s review what we have learned so far.

Highlights: Repository Management

Introduction

Debian Packages in Context

What's Inside a Debian Package

Quick Package Construction with fpm

The Debian Build System

Quick Debian Packaging and Multipackage Builds

Repository Management

Conclusion

Appendix

Highlights: Repository Management

Key highlights