General talk about Virtualization and Containers pros and cons and how these tech can work together.

1. Virtualization and
Containers
Douglas Schilling Landgraf
dougsland@redhat.com
November, 20th 2020
Universidade Luterana do Brasil (ULBRA)

2. Who is Douglas?
● ULBRA Alumni :)
● Open Source Contributor
● Software Engineer @ Red Hat

3. How are these topics related to all Computer
Engineers?

4. Why use Virtualization?
Image Copyright/URL: https://www.redhat.com/cms/managed-files/server-usage-500x131.png

5. Why use Virtualization?
Image Copyright/URL: https://www.redhat.com/cms/managed-files/server-usage-for-virtualization-500x131.png

6. Virtualization - Examples
Image Copyright/URL: https://virt-manager.org/wp-content/uploads/2013/04/virt-manager-vm-list.png

7. oVirt Datacenter

8. KVM/Qemu: Under the hood
Image Copyright/URL: https://documentation.suse.com/sles/12-SP4/html/SLES-all/images/kvm_qemu.png

9. Looks good, but why containers exist?
Image Copyright/URL: https://www.redhat.com/cms/managed-files/styles/wysiwyg_full_width/s3/virtualization-vs-containers_transparent.png?itok=q-E2I2-L

10. A little bit more info…
- Are containers a new technology?
- Docker Inc and Docker Containers
- How market reacted with Docker Inc projects?

11. How to create a container?
Docker CLI
$ docker run -it debian:10 bash
Podman / Buildah
$ podman run -it debian:10 bash

12. Kubernetes
- What’s Kubernetes?
- Who created Kubernetes? Why?
- Why Open Source?
- What’s the relationship between Kubernetes and the
Cloud Native Computing Foundation (CNCF) initiative?
- Are Virtual Machines gone?

13. Kubernetes features
- High Availability
- Load Balancing
- Quotas
- AutoScaling
- Vertical Scaling (CPU/Memory)
- Horizontal Scaling (Containers)
- IPv4 and IPv6 etc.

14. What are there big IT companies involved
with kubernetes development?
- Google
- IBM/Red Hat
- Amazon
- Microsoft
- VMware
- and many others!

15. How can I run Kubernetes @ home?
- MiniKube
- Kind
- Local Development with OpenShift
- Docker Desktop

16. Don’t have resources to run Kubernetes @
home, can I still test it?
- What’s the meaning of “Free Tier”?

17. Oh great! It’s time to migrate all my
PHP/Mysql/App to a single container!!!!!!
Douglas: Let me tell you a history….

18. Monolithic vs MicroServices
Image Copyright/URL: https://primefeed.in/wp-content/uploads/2020/07/Microservices.png

19. But HOLD ON, What about my current
Virtualization Env?!
Can the two technologies be merged?

20. What have we learned with Virtualization
and Containers during the Pandemics
(COVID-19)?

21. Wow, it looks fascinating! How can I get a job?

22. Where can I learn more about Kubernetes?
- Kubernetes Official docs
- Videos on YouTube
- Podcasts
- Books
- etc

23. Where can I learn more about Kubernetes?
Dec 12th 2020, in the Tchelinux Youtube channel
Online conference with more than 50 FREE talks about about
Technology, Development, Infrastructure, Open Source (and
of-course Kubernetes, Containers, IaaC and Virtualization!)
More information: https://live.tchelinux.org/

24. Thanks!!
Douglas Schilling Landgraf
<dougsland@redhat.com>
@dougsland