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

It is used for running the clean sequence.

It lets us see the steps in the clean sequence.

What is the purpose of the following command?

```s
$ dh clean --no-act
```


What is the purpose of the following command?
<pre><code class="language-s">$ dh clean --no-act
</code></pre>

`root` in the first case, and `myuser` in the second case

`myuser` in the first case, and `root` in the second case

Assume that a non-root user is present in their home folder, `/home/myuser`, and executes the following commands:

```s
$ fakeroot
$ touch hello
$ ls -l hello
$ exit
$ ls -l hello
```

What owners will be shown for the `hello` file as a result of the two `ls` commands?

Assume that a non-root user is present in their home folder, <code>/home/myuser</code>, and executes the following commands:
<pre><code class="language-s">$ fakeroot
$ touch hello
$ ls -l hello
$ exit
$ ls -l hello
</code></pre>
What owners will be shown for the <code>hello</code> file as a result of the two <code>ls</code> commands?

Which field in a binary package paragraph of a `control` file is not mandatory?

Which field in a binary package paragraph of a <code>control</code> file is not mandatory?

Which file in the Debian directory serves as the Makefile for the Debian build system?

Which file in the Debian directory serves as the Makefile for the Debian build system?

In order to create a Debian package that is not specific to any architecture, what should we write in the `Architecture` section of the `control` file?

In order to create a Debian package that is not specific to any architecture, what should we write in the <code>Architecture</code> section of the <code>control</code> file?

Specify an empty `override_dh_auto_build` target in the `control` file.

Specify an empty `override_dh_auto_build` target in the `rules` file.

Specify the `override_dh_auto_build` target in the `control` file as follows:
```s
override_dh_auto_build:
    dh_installchangelogs --exclude=NEWS
```

Specify the `override_dh_auto_build` target in the `rules` file as follows:
```s
override_dh_auto_build:
    dh_auto_build
```

To skip the `dh_auto_build` step during the build process, what do we need to do?

To skip the <code>dh_auto_build</code> step during the build process, what do we need to do?

Practice what you have learned so far.

Practice what you have learned so far.

Take a short quiz to test your understanding of the Debian build system.

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

Quiz: The Debian Build System