Cloud Native Application Development

The latest, Practical, Live scenario based Cloud Native Application Development and support Essentials course.

AIM:

This course is specially designed for complete beginners. On completion of this course the participant will gain in-depth knowledge about Developing and supporting Cloud Native Application. Delegats will learn and master most in demand skills such as Docker, Kubernetes, Helm package management system, Source control system (GIT), Go Programing Language (GoLang), The modern general purpose programming language. Delegates will be confidently able to build and deploy containerized applicaions end to end with CI/CD (Continuous Integration and Continuous Delivery) methodology. Delegats will be able to comfirtably adopt Conatiner Orchestration platform across multiple public cloud offerings.

Participants will be confident around concepts of modern, containerised software delivery life cycle (SDLC) along with Configuration and Management of services on the Kuberentes Platform. This course is designed for anyone and everyone who is interested in kick starting their IT career in the modern world. Delegates will gain good hands-on experience which will help them to start a new career with multiple, good long term opportunities. All softwares and applications outlined in this course are FREE and OpenSource. Welcome to the world of OpenSource.

Delegates will become a very good :

  • Cloud Native Engineer.
  • Kubernetes Administrator.
  • Cloud Native Application developer.
  • Kubernetes Support Engineer.
  • GO Application developer.
  • Automation Engineer.
  • Build and Release specialist.

Prerequisites :

At least one of the following.

  • Desire to learn and master new skills.
  • Problem solving Atitude.
  • Good Team Player.
  • Interested in exploring new career opportunities.
  • Open minded.

Every delegate will need their own laptop or desktop computer.

Fundamentals :

  • YAML
  • JSON
  • What is API?
    • Take example of public API e.g github or gitlab
    • Familieries with curl and wget utility.
  • Basic understanding to Web standards.

Docker :

  • Virtual machines vs Containers.
  • What is an IP Address and how applications and devices communicate.
  • What is a container ?
  • Why Docker Containerization ?
  • Get familier with dockerCli.
  • Learn basic Docker operations.
    • docker run, docker exec, docker rm, etc.
  • Understanding docker image concept.
    • Learn about Docker-Hub (A free docker image repository)
    • Understanding image tags.
    • Pull a basic ​busybox​ and ​alpine​ image from dockerhub.
      • ​docker pull
    • List all images available local on your system.
      • docker images
    • Inspect a docker image to gain insight of the image.
      • ​docker image inspect
  • Familierise with basic LINUX utilities through a container.
  • Understand different Dockerfile commands.
  • Build container from default images.
  • Create docker image from running container.
  • Write DockerFile to build container image from scratch.
  • Build a custom web server image using nginx webserver.
    • docker build
  • Docker Compose to run multiple containers.

Go Programing Language : PART 1

  • Why Learn Go Programming Language?
  • Install the latest version of Go.
  • Install an editor to prepare go code.
  • Understand basic go syntax, importance of package, import ,func main() in main.go
  • Understand difference between Interpreted vs Compiled programming language.
  • Write up first go code to print some text.
  • Println, Print, Printf from fmt package.
  • Familierise with GO (Beginners Level) :
  • Variables
  • Constants
  • Value types:
    • Strings
    • Integers
    • Floats
    • Booleans
  • Operators:
    • Conditional operators
      • = , == , != , < , > , <= , >=
    • Logical operators
      • And - && , OR - || , NOT - !
  • Pointers.
    • The & and * operators.
  • Conditional statements:
    • if
    • if/else
    • if/else..if
    • Switch
  • For loop. Only one loop.
  • Arrays, Slices and Map
  • Functions.
  • Develop your first application in GO with confidence
    • We will develop our first application in go and package it in a docker container to learn a Real World Scenario to automate application deployment using containers.

Kubernetes K8S

  • What is Kubernetes ?
  • Why kubernete adoption is on rise ?
  • Docker vs Kubernetes - comparision.
  • High level Architectural diagram of Kubernetes and core components.
  • What is kubernetes API ?
  • Setup kubernetes.
  • Install kubectl - A command line management utility.
  • Query k8s api with kubectl and get familier with basics.
  • Kubernetes resources :

    Namespaces

    • Whats ia a NAMESPACE? Understand importance of NS
    • When to use different namespaces ?
    • Switch between namespaces permenantly vs temperory options.
    • Create a new namespace (Imperative way)
    • Understand Imperative vs Declarative approach to create resources.
    • Create a new namespace (Declarative way)

    Pods

    • What is a POD ?
    • Understand difference between POD vs Container
      • Create a POD with one of the nginx image we prepared earlier(Imperative).
      • Create a POD (Declaratice).
    • Understanding pod lifecycle.
    • Pod logs.
    • Pod Internals:

    Labels and Selectors

    • Importance of Labels and selectors ?
    • Syntax and character set.
    • List, Watch and filter kubernetes resources.

    Service

    • What is a service ?
    • Service types in k8s :
      • ClusterIP (Default)
      • NodePort
      • LoadBalancer
      • Externalname
    • Setup a default service for the POD created in previous step.
    • Query services with kubectl to verify details.
    • Query the service endpoint from web browser or cURL to confirm its working as expected.
    • Setup a NodePort serivce for the same pod and check again.

    ConfigMap

    • What is a configMap ?
    • Create config map from literals.
    • Create config map from files.
    • Configure pod to setup configuration / parameters from configMap.
    • Configure pod to setup environment variables from configMap.
    • Configure pod to setup configuration from volume.

    Secrets

    • What is a secret ?
    • Overview of secrets. understand base64 encoding / decoding.
    • Create a secret.
    • Retrieve a secret.
    • Configure a pod to retrieve credentials/parameters from a secret.

    Deployments

    • What is a deployment ?
    • Deployment manifest (template).
    • Prepare a custom deployment using imperative command and different options.
    • Create a deployment.
    • Update a deployment.
    • Practice Deploy commands:
      • rollout, scale, autoscale
    • Check history and status of deployment.
    • Recreate deployment. (rolling update vs recreate)
    • Pausing and Resuming deployment.

    Replicasets

    • What is a replicaset ?
    • When to use Replicaset ?
    • Scaling a replicaset.

    Volumes

    • Type of volumes.
    • Persistent Volumes.
    • Persistent Volume Claim.
    • Storage classes.

Helm Package manager.

  • What is a package maanager ?
  • Why helm for kubernetes package management ?
  • Setup helm locally on your system.
  • helm repositories :
    • add, remove, list repositories.
  • Prepare a helm chart to deploy nginx web server.
    • helm create chart_name [flags]
  • Gain better insight about helm :
    • Charts
    • Releases
    • Revisions
    • Template
    • Values.yaml
  • Deploy your first helm release.
  • Query deployed helm release and validate.
    • get
    • list
    • status
  • Make ammendment to helm release and upgrade existing helm release.

SCM or VCS ( Theory + Practical ):

Source control management / Version Control System

  • What is SCM/VCS and why it is important ?
  • Download / Install git.
  • Configure local git preferences.
  • Getting familiar with command line options/help.
  • Create a FREE GitLab account.
  • Private vs Public repository.
  • Create a new project repository on GitLab.
  • Concepts about Users,Groups and Permissions.
  • Cloning repository.
  • Commit new changes and raise new merge request.
  • Peer review pending merge requests and approvals.
  • Push new changes to GitLab.
  • Advance concepts of branches and tags.
  • Learn about gitlab-ci.yml configurations.
  • Prepare your first pipeline to build and publish custom docker image.

Go Programing Language : PART 2

  • Will learn more with real world scenarios.

Continue

  • Understand Control Statements with more examples ?
  • Struct and Interfaces
  • Prepare a simple web server with GoLang.
    • Package it with docker image, run it, test it with docker run.
    • Prepare a pod definition and deploy to kubernetes.
    • Prepare a deployment definition and deploy to kubernetes.
    • Prepare a custom config and update the pod when it starts to change web server content.
  • Prepare a simple web app to store information in flat file.
  • Extend our app to store data in a database.
    • We will work with 2 containers now. (First test this with plain Docker)
    • Deploy on kubernetes.
  • Concurrancy
    • Goroutines and Channels

Introduction to API Development

  • Will build a real world project in this section.
Quizzes, home work and more hands on lab work will be available during the course to get particepants ready for interviews.
** Required information and basic knowledge will be provided depends on delegate’s requirement.

#kubernetes #k8s #cncf #golang #linux #docker

Duration of the course : 3 - 4 Months : PartTime schedule (2 - 3 hours / per week)

Learn from experienced and certified professionals.