This document discusses Docker, an open source containerization platform. It allows applications to run regardless of how they were created or their dependencies by packaging code and dependencies together. This solves issues of applications working differently in different environments. Docker uses containers, which are lightweight and isolated from each other, sharing the same operating system kernel. Containers improve resource utilization and allow running multiple applications simultaneously reliably. Docker images are used as templates to launch containers from and can be built from base images with custom code added via Dockerfiles for reproducible builds.

1. Docker?
ACM Gazi
30/03/2021
Derya SEZEN
Partner @kloia_com
@derya_sezen

3. A standard container that is
loaded with virtually any goods,
and stays sealed until it final
delivery.
...in between, can be loaded, and
unloaded, stacked, transported
efficİently over long distances, and
transferred from one mode of
transport to another

6. ● An open source containerization platform.
● The de facto standard to build and share
containerized apps.
● It allows us to run applications anywhere,
regardless of how they are created
● Standardization throughout the
development life-cycle
● It solves “But it worked on my machine”
problem :)
What is Docker?

7. Runtime Code
Dependencies Configuration
Application Environment Components

8. Local Laptop Staging / QA Production On-Prem
Different Environments

9. Local Laptop Staging / QA Production On-Prem
v6.0.0 v7.0.0 v4.0.0 v7.0.0
It Worked on My Machine, Why not in Prod?

10. Runtime Engine
Code
Dependencies
Docker to the Rescue

11. Virtual Machine Versus Docker

12. ● Lightweight, stand-alone, executable
package of software
● Standardized packaging for software
and dependencies
● Ready applications created from an
image, running instance of a Docker
image
● Isolate apps from each other
● Shares same OS kernel
What is Container?

13. Local Laptop Staging / QA Production On-Prem
Four Environments, Same Containers

14. Better resource utilization
Run different apps simultaneously
Runs reliably everywhere
Container and Docker Benefits

15. Docker Architecture

17. ● Read only image that is used as a
template to launch a container.
● Start from base images that have
your dependencies, add your custom
code.
● Docker file for easy,
reproducible builds.
Docker Container Image

19. volume02
volume01

23. We are a team of experienced and happy high achievers,
Knowing that ‘Great vision without great people is irrelevant.’
So:
● Talents determine the positions, we do not miss the best,
● We hire the best and providing them the best, pecuniary and non-pecuniary,
● We set high standards, so you better have those as well,
● Stunning colleagues means a great workplace, and the motive to be online.
If you have the Stunning ‘Kloian’ essence or potential by being:
● No Bullshit
● Self-motivated and Reliable
● Optimistic and Focused
● Happy and Fun
● Flexible and Trustworthy
● Willing and Creative
● Open minded and Kind (Majority of above, if not all.)
You are more than welcome to apply: career@kloia.com
Come Join Us, The Kloians: