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Red Hat Enterprise Linux 9 Administration

You're reading from   Red Hat Enterprise Linux 9 Administration A comprehensive Linux system administration guide for RHCSA certification exam candidates

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Product type Paperback
Published in Nov 2022
Publisher Packt
ISBN-13 9781803248806
Length 530 pages
Edition 2nd Edition
Languages
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Authors (4):
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Scott McCarty Scott McCarty
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Scott McCarty
Miguel Pérez Colino Miguel Pérez Colino
Author Profile Icon Miguel Pérez Colino
Miguel Pérez Colino
Pedro Ibañez Requena Pedro Ibañez Requena
Author Profile Icon Pedro Ibañez Requena
Pedro Ibañez Requena
Pablo Iranzo Gómez Pablo Iranzo Gómez
Author Profile Icon Pablo Iranzo Gómez
Pablo Iranzo Gómez
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Toc

Table of Contents (26) Chapters Close

Preface 1. Part 1 – Systems Administration – Software, User, Network, and Services Management
2. Chapter 1: Getting RHEL Up and Running FREE CHAPTER 3. Chapter 2: RHEL 9 Advanced Installation Options 4. Chapter 3: Basic Commands and Simple Shell Scripts 5. Chapter 4: Tools for Regular Operations 6. Chapter 5: Securing Systems with Users, Groups, and Permissions 7. Chapter 6: Enabling Network Connectivity 8. Chapter 7: Adding, Patching, and Managing Software 9. Part 2 – Security with SSH, SELinux, a Firewall, and System Permissions
10. Chapter 8: Administering Systems Remotely 11. Chapter 9: Securing Network Connectivity with firewalld 12. Chapter 10: Keeping Your System Hardened with SELinux 13. Chapter 11: System Security Profiles with OpenSCAP 14. Part 3 – Resource Administration – Storage, Boot Process, Tuning, and Containers
15. Chapter 12: Managing Local Storage and Filesystems 16. Chapter 13: Flexible Storage Management with LVM 17. Chapter 14: Advanced Storage Management with Stratis and VDO 18. Chapter 15: Understanding the Boot Process 19. Chapter 16: Kernel Tuning and Managing Performance Profiles with tuned 20. Chapter 17: Managing Containers with Podman, Buildah, and Skopeo 21. Part 4 – Practical Exercises
22. Chapter 18: Practice Exercises – 1 23. Chapter 19: Practice Exercise – 2 24. Index 25. Other Books You May Enjoy

Running a container using Podman and UBI

Now that you have the container tools from the Application Stream repository installed, let’s run a simple container based on Red Hat UBI that contains a set of official container images and extra software based on RHEL. To run a UBI image, it only takes a single command, as illustrated in the following code snippet:

[root@rhel-instance ~]# podman run –it registry.access.redhat.com/ubi9/ubi bash
Trying to pull registry.access.redhat.com/ubi9:latest...
Getting image source signatures
Checking if image destination supports signatures
Copying blob bf30f05a2532 done
Copying blob c6e5292cfd5f done
Copying config 168c58a383 done
Writing manifest to image destination
Storing signatures
[root@e38453f5e055 /]#

Check the hostname; it has changed from rhel-instance to e38453f5e055, which means we are inside the container.

Tip

These tutorials run commands as root, but one of the benefits of Podman is that it can run containers...

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