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Introduction To Kubernetes

This document provides an introduction to Kubernetes, an open-source platform for automating the deployment, scaling, and operation of applications. It covers the benefits of Kubernetes, including its portability, extensibility, and self-healing capabilities, as well as the use of YAML for configuration management. The session aims to familiarize participants with the key concepts and functionalities of Kubernetes.

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harshagv1994
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13 views15 pages

Introduction To Kubernetes

This document provides an introduction to Kubernetes, an open-source platform for automating the deployment, scaling, and operation of applications. It covers the benefits of Kubernetes, including its portability, extensibility, and self-healing capabilities, as well as the use of YAML for configuration management. The session aims to familiarize participants with the key concepts and functionalities of Kubernetes.

Uploaded by

harshagv1994
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Introduction to Kubernetes

Agenda

In this session, you will learn about:

• Introduction to Kubernetes
• What is Kubernetes?
• Why Kubernetes?
• Getting to know YAML
What is Kubernetes?
• Open source platform designed to automate Deploying, Scaling, and Operating
applications.
• Deploy applications quickly and predictably

• Scale applications on the fly

• Roll out new features seamlessly

• Limit hardware usage


Why Kubernetes?
• At minimum Kubernetes can Schedule and Run application containers on clusters
of Physical or Virtual Servers.
Why Kubernetes?
Kubernetes satisfies common needs for an Applications in Production

• Authentication and Authorization • Rolling updates


• Naming and Discovery of Services • Mounting Storage
• Load Balancing • Secrets and ConfigMaps
• Checking Application Health • Monitoring Resources
• Replicating Application Instances • Accessing and Ingesting Logs
• Horizontal Pod Auto-scaling • Debugging Applications
What does Kubernetes means?
• The name Kubernetes originates from Greek, Meaning Helmsman or Pilot.

• K8s is an abbreviation derived by replacing the 8 letters “kubernetes” with “8”.


Kubernetes is

• Portable

• Extensible

• Self-healing
Kubernetes is

• Portable

• Physical Servers

• Virtual Servers

• Public Cloud

• Private Cloud

• Hybrid Cloud

• Multi Cloud
Kubernetes is

• Extensible

• Modular

• Pluggable

• Hookable

• Composable
Kubernetes is

• Self-healing

• Auto-placement

• Auto-restart

• Auto-replication

• Auto-scaling
What Kubernetes Is Not?
• Kubernetes provides Containerized IaaS but not a complete PaaS!
What is YAML?
• YAML Ain’t Markup Language (depending who you ask) is a human-
readable text-based format for specifying configuration-type
information

• Ex: Kubernetes, SDN, SDS, OpenStack and OpenShift

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YAML Basic Rules – Syntax
• YAML files extension is .yml or .yaml
• YAML is case sensitive
• YAML does not allow the use of tabs instead it uses 2 spaces
• List members are denoted by a leading hyphen (-)
• Associative arrays are represented using the colon space (:) in the
form key: value

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Why is YAML in k8s?
• Convenience: You’ll no longer have to add all of your parameters to
the command line

• Maintenance: YAML files can be added to source control, so you can


track changes

• Flexibility: You’ll be able to create much more complex structures


using YAML than you can on the command line

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Building blocks
One Points

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