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

# Task

In this exercise, you are required to create a `my-package_0.1_amd64.deb` package using the Debian build system. To complete the task, you need to perform the following steps:

1. You are given a C file that prints a welcome message. You are given a C file that prints a welcome message.

2. In the `Makefile` file, add build and install targets so that the object file `welcome` is installed in the `usr/bin` directory.


3. Make the necessary changes in the `control`, `changelog`, and `rules` files of the `my-package/debian` directory to build the `my-package` package.

4. Set the compatibility and enter the `dpkg-buildpackage` command on the terminal. (Click “Show Hint” for the actual command.)


5. After successfully building the Debian package, install the package using `sudo dpkg -i <packagename>` command. 

6. If your package is built and installed successfully, you may execute the `welcome` command to see the welcome message. 


Construct and install a package using the Debian build system.

Exercise: 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

Exercise: The Debian Build System

Task