Tech Enablement Training - Essential Skills and Prerequisites

Introduction

This document aims to put together all the items which will enable to come up with a proper training plan for a partner team who will be working on the DIGIT platform.

Technical Prerequisites

Below listed are the technical skill sets that are required to work on DIGIT stack. It is expected the team planning on attending training is well versed with the mentioned technologies before they attend eGov training sessions.

Skillset for the Development team

Open API Contract - Swagger2.0
YAML/JSON
Postman
Postgres
Java and REST APIS
Basics of Elasticsearch
Maven
Springboot
Kafka
Zuul
NodeJS, ReactJS
Wordpress
PHP

Skill Set for the DevOps team

Understanding on the microservice architecture.
Experience of AWS, Azure, GCP, NIC Cloud.
Strong working knowledge on linux, command, VM Instances, networking, storage.
To create kubernetes cluster on AWS, Azure, GCP on NIC Cloud.
kubectl installation & commands (apply, get, edit, describe k8s objects)
Terraform for infra-as-code for cluster or VM provisioning.
Understanding of VM types, Linux OS types, LoadBalancer, VPC, Subnets, Security Groups, Firewall, Routing, DNS)
Experience setting up CI like Jenkins and create pipelines.
Deployment strategies - Rolling updates, Canary, Blue/Green.
Scripting - Shell, Groovy, Python and GoLang.
Experience on Baking Containers and Dockers.
Artifactory - Nexus, verdaccio, DockerHub, etc.
Experience on kubernetes ingress, setting up SSL certificates and renewal
Understanding on zuul gateway
Gitops, Git branching, PR review process. Rules, Hooks, etc.
Experience on Helm, packaging and deploying.
JBoss Wildfly, Apache, nginx, Redis and Postgres.

Hardware prerequisites

Trainees are expected to have laptops/ desktops configured as mentioned below with all the software required to run the DIGIT application

Laptop for hands-on training with 16GB RAM and OS preferably Ubuntu
All developers need to have Git ids
Install VSCode/IntelliJ/Eclipse
Install Git
Install JDK 8 update 112 or higher
Install maven v3.2.x
Install PostgreSQL v9.6
Install Elastic Search v2.4.x
Postman

Software Assets

There are knowledge assets available in the Net for general items and eGov assets for DIGIT services. Here you can find references to each of the topics of importance. It is mandated the trainees do a self-study of all the software mentioned in the prerequisites using the reference materials shared.

Topic	Reference	Preparedness Check
Git	https://www.atlassian.com/git https://www.tutorialspoint.com/git/index.htm https://www.udemy.com/course/git-complete/	Do you have a Git account? Do you know how to clone a repository, pull updates, push updates? Do you know how to give a pull request and merge the pull request?
Microservice Architecture	https://www.tutorialspoint.com/microservice_architecture/index.htm https://www.udemy.com/course/microservices-with-spring-boot-and-spring-cloud/	Do you know when to create a new service? How to access other services?
ReactJS	https://reactjs.org/tutorial/tutorial.html https://www.udemy.com/course/react-the-complete-guide-incl-redux https://www.tutorialspoint.com/reactjs/reactjs_overview.htm	How to create react app ? How to create a Statefull and Stateless Component? How to use HOC as a wrapper? Validations at form level using React.js and Redux
Postgres	https://www.postgresqltutorial.com/ https://www.udemy.com/course/the-complete-python-postgresql-developer-course/ https://www.tutorialspoint.com/postgresql/index.htm	How to create database and set up privileges? How to add index on table? How to use aggregation functions in psql?
Postman	https://www.postman.com/resources/videos-tutorials/ https://www.udemy.com/course/postman-the-complete-guide/	Call a REST API from Postman with proper payload and show the response Setup any service locally(MDMS or user service has least dependencies) and check the API’s using postman
REST APIs	https://www.tutorialspoint.com/rest_api/index.asp https://www.youtube.com/watch?v=rtWH70_MMHM	What are the principles to be followed when making a REST API? When to use POST and GET? How to define the request and response parameters?
Kafka	https://www.udemy.com/course/apache-kafka/ https://kafka.apache.org/intro https://www.tutorialspoint.com/apache_kafka/apache_kafka_introduction.htm	How to push messages on kafka topic? How does consumer group work? What are partitions?
Docker and Kubernetes	https://www.tutorialspoint.com/kubernetes/index.htm https://www.udemy.com/course/docker-and-kubernetes-the-complete-guide/ https://www.tutorialspoint.com/docker/index.htm	How to edit deployment configuration? How to read logs? How to go inside a kubernetes pod? How to create a docker file using a base image? How to port-forward the pod to local port?
JSON	https://www.tutorialspoint.com/json/index.htm GitHub - json-path/JsonPath: Java JsonPath implementation	How to write filters to extract specific data using jsonPaths?
YAML	https://www.udemy.com/course/yaml-essentials/	How to read an API contract using swagger?
Zuul	https://www.javatpoint.com/zuul-api-gateways	What does zuul do?
Maven	https://www.udemy.com/course/maven-quick-start/ https://www.tutorialspoint.com/maven/index.htm	What is POM? What is the purpose of maven clean install and how to do it? What is the difference between version and SNAPSHOT?
Springboot	https://www.tutorialspoint.com/spring_boot/index.htm https://www.udemy.com/course/spring-hibernate-tutorial/	How does Autowiring work in spring? How to write a consumer/producer using spring kafka? How to make a API call to other service using restTemplate? How to execute queries using jdbcTemplate?
Elastic search	https://www.udemy.com/course/elasticsearch-complete-guide/ https://www.tutorialspoint.com/elasticsearch/index.htm	How to write basic queries to fetch data from elastic search index?
Wordpress	https://www.tutorialspoint.com/wordpress/index.htm https://www.udemy.com/course/wordpress-for-beginners-course/
DIGIT Architecture	Orientation - Platform Overview DIGIT Architecture and Technical overview	What comes as part of core service, business service and municipal services? How to calls APIs from one service in another service?
DIGIT Core Services	https://digit-discuss.atlassian.net/l/c/DYNz7y84	Which are the core services in DIGIT framework?
DIGIT DevOps	DevOps Partners - KT Content DIGIT Deployment
DIGIT MDMS	MDMS Configuration:	How to read a master date from MDMS? How to add new data in an existing Master? Where is the MDMS data stored?
DIGIT UI Framework	Getting started	How to add a new component in the framework? How to use an existing component?
DSS	Product - DSS