DIGIT Core
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2.8
2.8
  • ☑️Introducing DIGIT Platform
    • DIGIT - Value Proposition
  • Platform
    • 🔎Overview
      • Principles
      • Architecture
        • Service Architecture
        • Infrastructure Architecture
        • Deployment Architecture
      • Technology
        • API Gateway
        • Open Source Tools
      • Checklists
        • API Checklist
        • Security Checklist
          • Security Guidelines Handbook
          • Security Flow - Exemplar
        • Performance Checklist
        • Deployment Checklist
      • UI Frameworks
        • React UI Framework
    • 🔧Core Services
      • Workflow Service
        • Setting Up Workflows
        • Configuring Workflows For An Entity
        • Workflow Auto Escalation
        • Migration To Workflow 2.0
      • Location Services
      • User Services
      • Access Control Services
      • PDF Generation Service
      • MDMS (Master Data Management Service)
        • Setting up Master Data
          • MDMS Overview
          • MDMS Rewritten
          • Configuring Tenants
          • Configuring Master Data
          • Adding New Master
          • State Level Vs City Level Master
      • Payment Gateway Service
      • User Session Management
      • Indexer Service
        • Indexer Configuration
      • URL Shortening Service
      • XState Core Chatbot
        • Xstate-Chatbot Message Localisation
        • XState-Chatbot Integration Document
      • NLP Engine Service
        • NLP Chatbot
      • SMS Template Approval Process
      • Telemetry Service
      • Document Uploader Service
      • Notification Enhancement Based On Different Channel
      • Report Service
        • Configuring New Reports
          • Impact Of Heavy Reports On Platform
          • Types Of Reports Used In Report Service
      • SMS Notification Service
        • Setting Up SMS Gateway
          • Using The Generic GET & POST SMS Gateway Interface
      • Survey Service
      • Persister Service
        • Persister Configuration
      • Encryption Service
        • Encryption Client Library
        • User Data Security Architecture
        • Guidelines for supporting User Privacy in a module
      • FileStore Service
      • ID Generation Service
      • Localization Service
        • Configuring Localization
          • Setup Base Product Localization
          • Configure SMS and Email
      • Email Notification Service
      • Searcher Service
      • Zuul Service
      • User OTP Service
      • OTP Service
      • Chatbot Service
      • National Dashboard Ingest
        • National Dashboard API Performance Testing Specs and Benchmark
        • National Dashboard: Steps for Index Creation
        • National Dashboard Adaptor Service
          • Deployment of Airflow DAG
          • Trigger Airflow DAG
          • Configure Airflow
          • Insert & Delete Data - Steps
          • Important Links & Credentials
          • Code Structure
          • KT Sessions
          • Pre-requisites For Enabling Adaptor
        • Revenue Maximisation
      • Audit Service
        • Signed Audit Performance Testing Results
      • Service Request
      • Self Contained Service Architecture (HLD)
      • Accelerators
        • Inbox Service
    • ✏️API Specifications
      • User
      • Access Control
      • Employee
      • Location
      • Localisation
      • Encryption
      • Indexer
      • File Store
      • Collection
      • DSS Ingest
      • HRMS
      • National Dashboard Ingest
      • WhatsApp Chatbot
      • Master Data Management
      • ID Generation
      • URL Shortner
      • Workflow Service
      • Workflow v2
      • Document Uploader Service
      • OTP Service
      • Reporting Service
      • PDF Generation Service
      • Payment Gateway Service
    • 🔐Data Protection & Privacy
      • Data Protection & Privacy Definitions
      • Legal Obligations For Privacy - eGov
      • Data Protection & Privacy - Global Best Practices
      • Guidelines
        • Platform Owner Guidelines
        • Implementing Agencies Guidelines
        • Admin Guidelines
        • Program Owner Guidelines
        • Data Security and Data Privacy
      • Data Privacy Policy Templates
        • eGov Data Privacy Policy
        • Implementing Agency Privacy Policy
        • Admin & Program Owner Privacy Policy
        • Supporting Agency Privacy Policy
      • Global Standards For All Roles
    • ▶️Get Started
      • Install DIGIT
      • Access DIGIT
      • Sandbox
      • Training and Certification
        • Training Resources
    • ⚒️Integrations
      • Payment
      • Notification
      • Transaction
      • Verification
      • View
      • Calculation
    • 🛣️Roadmap
    • 🎬Open Events
    • 👩‍💻Source Code
    • 👁️Project Plan
    • 📋Discussion Board
    • 🤝Contribute
  • Guides
    • 📓Installation Guide
      • DIGIT Deployment
      • Quick Setup
        • DIGIT Installation on Azure
        • DIGIT Installation on AWS
      • Production Setup
        • AWS
          • 1. Pre-requisites
          • 2. Understanding EKS
          • 3. Setup AWS Account
          • 4. Provisioning Infra Using Terraform
          • 5. Prepare Deployment Config
          • 6. Deploy DIGIT
          • 7. Bootstrap DIGIT
          • 8. Productionize DIGIT
          • FAQ
        • Azure
          • 1. Azure Pre-requisites
          • 2. Understanding AKS
          • 3. Infra-as-code (Terraform)
        • SDC
          • 1. SDC Pre-requisites
          • 2. Infra-as-code (Kubespray)
          • CI/CD Setup On SDC
        • CI/CD Set Up
          • CI/CD Build Job Pipeline Setup
        • Prepare Helm Release Chart
        • Deployment - Key Concepts
          • Security Practices
          • Readiness & Liveness
          • Resource Requests & Limits
          • Deploying DIGIT Services
          • Deployment Architecture
          • Routing Traffic
          • Backbone Deployment
    • 💽Data Setup Guide
      • User Module
      • Localisation Module
      • Location Module
    • 🚥Design Guide
      • Model Requirements
      • Design Services
      • Design User Interface
      • Checklists
    • ⚒️Developer Guide
      • Pre-requisites Training Resources
      • Backend Developer Guide
        • Section 0: Prep
          • Development Pre-requisites
          • Design Inputs
            • High Level Design
            • Low Level Design
          • Development Environment Setup
        • Section 1: Create Project
          • Generate Project Using API Specs
          • Create Database
          • Configure Application Properties
          • Import Core Models
          • Implement Repository Layer
          • Create Validation & Enrichment Layers
          • Implement Service Layer
          • Build The Web Layer
        • Section 2: Integrate Persister & Kafka
          • Add Kafka Configuration
          • Implement Kafka Producer & Consumer
          • Add Persister Configuration
          • Enable Signed Audit
          • Run Application
        • Section 3: Integrate Microservices
          • Integrate IDGen Service
          • Integrate User Service
          • Add MDMS Configuration
          • Integrate MDMS Service
          • Add Workflow Configuration
          • Integrate Workflow Service
          • Integrate URL Shortener Service
        • Section 4: Integrate Billing & Payment
          • Custom Calculator Service
          • Integrate Calculator Service
          • Payment Back Update
        • Section 5: Other Advanced Integrations
          • Add Indexer Configuration
          • Certificate Generation
        • Section 6: Run Final Application
        • Section 7: Build & Deploy Instructions
        • FAQs
      • Flutter UI Developer Guide
        • Introduction to Flutter
          • Flutter - Key Features
          • Flutter Architecture & Approach
          • Flutter Pre-Requisites
        • Setup Development Environment
          • Flutter Installation & Setup Guide
          • Setup Device Emulators/Simulators
          • Run Application
        • Build User Interfaces
          • Create Form Screen
        • Build Deploy & Publish
          • Build & Deploy Flutter Web Application
          • Generate Android APKs & App Bundles
          • Publishing App Bundle To Play Store
        • State Management With Provider & Bloc
          • Provider State Management
          • BloC State Management
        • Best Practices & Tips
        • Troubleshooting
      • UI Developer Guide
        • DIGIT-UI
        • Android Web View & How To Generate APK
        • DIGIT UI Development Pre-requisites
        • UI Configuration (DevOps)
        • Local Development Setup
        • Run Application
        • Create New Screen In DIGIT-UI
          • Create Screen (FormComposer)
          • Inbox/Search Screen
          • Workflow Component
        • Customisation
          • Integrate External Web Application/UI With DIGIT UI
          • Utility - Pre-Process MDMS Configuration
          • CSS Customisation
        • Citizen Module Setup
          • Sample screenshots
          • Project Structure
          • Install Dependency
          • Import Required Components
          • Write Citizen Module Code
          • Citizen Landing Screen
        • Employee Module Setup
          • Write Employee Module Code
        • Build & Deploy
        • Setup Monitoring Tools
        • FAQs
          • Troubleshoot Using Browser Network Tab
          • Debug Android App Using Chrome Browser
    • 🔄Operations Guide
      • DIGIT - Infra Overview
      • Setup Central Instance Infra
      • Central Monitoring Dashboard Setup
      • Kubernetes
        • RBAC Management
        • DB Dump - Playground
      • Setup Jenkins - Docker way
      • GitOps
        • Git Client installation
        • GitHub organization creation
        • Adding new SSH key to it
        • GitHub repo creation
        • GitHub Team creation
        • Enabling Branch protection:
        • CODEOWNER Reviewers
        • Adding Users to the Git
        • Setting up an OAuth with GitHub
        • Fork (Fork the mdms,config repo with a tenant-specific branch)
      • Working with Kubernetes
        • Installation of Kubectl
      • Containerizing application using Docker
        • Creation of Dockerhub account
      • Infra provisioning using Terraform
        • Installation of Terraform
      • Customization of existing tf templates
      • Cert-Manager
        • Obtaining SSL certificates with the help of cluster-issuer
      • Moving Docker Images
      • Pre and post deployment checklist
      • Multi-tenancy Setup
      • Availability
        • Infrastructure
        • Backbone services
          • Database
          • Kafka
          • Kafka Connect
          • Elastic search
            • ElasticSearch Direct Upgrade
            • Elastic Search Rolling Upgrade
        • Core services
        • DIGIT apps
        • DSS dashboard
      • Observability
        • ES-Curator to clear old logs/indices
        • Monitoring
        • Tracing
        • Jaeger Tracing Setup
        • Logging
        • eGov Monitoring & Alerting Setup
        • eGov Logging Setup
      • Performance
        • What to monitor?
          • Infrastructure
          • Backbone services
          • Core services
        • Identifying bottlenecks
        • Solutions
      • Handling errors
      • Security
      • Reliability and disaster recovery
      • Privacy
      • Skillsets/hiring
      • Incident management processes
      • Kafka Troubleshooting Guide
        • How to clean up Kafka logs
        • How to change or reset consumer offset in Kafka?
      • SRE Rituals
      • FAQs
        • I am unable to login to the citizen or employee portal. The UI shows a spinner.
        • My DSS dashboard is not reflecting accurate numbers? What can I do?
      • Deployment using helm
        • Helm installation:
        • Helm chart creation
        • Helm chart customization
      • How to Dump Elasticsearch Indexes
      • Deploy Nginx-Ingress-Controller
      • Deployment Job Pipeline Setup
      • OAuth2-Proxy Setup
      • Jira Ticket Creation
  • Reference
    • 👉Setup Basics
      • Setup Requirements
        • Tech Enablement Training - Essential Skills and Pre-requisites
        • Tech Enablement Training (eDCR) - Essential Skills and Prerequisites
          • Development Control Rules (Digit-DCR)
          • eDCR Approach Guide
        • DIGIT Rollout Program Governance
        • DevOps Skills Requirements
        • Infra Requirements
        • Team Composition for DIGIT Implementation
        • Infra Best Practices
        • Operational Best Practices
        • Why Kubernetes For DIGIT
      • Supported Clouds
        • Google Cloud
        • Azure
        • AWS
        • VSphere
        • SDC
      • Deployment - Key Concepts
        • Security Practices
        • CI/CD
        • Readiness & Liveness
        • Resource Requests & Limits
      • Understanding ERP Stack
        • ERP Monolithic Architecture
        • ERP Hybrid Architecture
        • ERP Coexistence Architecture
        • APMDP-HYBRID-INFRA ARCHITECTURE
        • eGov SmartCity eGovernance Suite
        • ERP Deployment Process
        • ERP Release Process
        • ERP User Guide
      • Deploying DIGIT Services
        • Deployment Architecture
        • Routing Traffic
        • Backbone Deployment
      • Troubleshooting
        • Distributed Tracing
        • Logging
        • Monitoring & Alerts
    • 📥Reference Reads
      • Analytics
      • DevSecOps
      • Low Code No Code
        • Application Specification
      • Beneficiary Eligibility
      • Government and Open Digital Platforms
      • Microservices and Low Code No Code
      • Registries
      • Platform Orientation - Overview
    • 🔏Data Security
      • Signed Data Audit
      • Encryption Techniques
      • Approaches to handle Encrypted Data
    • ❕Privacy
    • 🕹️DevOps
      • 1. How DNS works
      • 2. Load Balancer
      • 3. SSL/Cert-manager
      • 4.Ingress,WAF
      • 5.VPC
      • 6.Subnets
      • 7.EKS
      • 8.Worker Node Group
      • 9.RDS
      • 10.NAT
      • 11.Internet Gateway
      • 12.Block Storage (EBS Volumes)
      • 13.Object Storage (S3)
      • 14. Telemetry
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On this page
  • Overview
  • Requirements
  • The basic need to provision Kubernetes Cluster
  • Check Network Adapters
  • Master Cluster Master Node(s)
  • Complete Infra Specifications

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  1. Reference
  2. Setup Basics
  3. Setup Requirements

Infra Requirements

Overview

This page discusses the infrastructure requirements for DIGIT services. It also explains why DIGIT services are containerised and deployed on Kubernetes.

Requirements

DIGIT Infra is abstracted to Kubernetes which is an open-source containers orchestration platform that helps in abstracting a variety of infra types that are being available across each state, like Physical, VMs, on-premises clouds(VMware, OpenStack, Nutanix, etc.), commercial clouds (Google, AWS, Azure, etc.), SDC and NIC into a standard infra type. Essentially it unifies various infra types into a standard and single type of infrastructure and thus DIGIT becomes multi-cloud supported, portable, extensible, high-performant and scalable containerized workloads and services. This facilitates both declarative configuration and automation. Kubernetes services, eco-system, support and tools are widely available.

The basic need to provision Kubernetes Cluster

Kubernetes as such is a set of components that designated jobs of scheduling, controlling, monitoring

Master Cluster

  • 3 or more machines running one of:

    • Ubuntu 16.04+

    • Debian 9

    • CentOS 7

    • RHEL 7

    • Container Linux (tested with 1576.4.0)

  • 4 GB or more of RAM per machine (any less will leave little room for your apps)

  • 2 CPUs or more

User Cluster

  • 3 or more machines running one of:

    • Ubuntu 16.04+

    • Debian 9

    • CentOS 7

    • RHEL 7

    • Container Linux (tested with 1576.4.0)

  • 2 GB or more of RAM per machine (any less will leave little room for your apps)

  • 2 CPUs or more

  • Full network connectivity between all machines in the cluster (public or private network is fine)

  • Certain ports are open on your machines. See below for more details

  • Swap disabled. You MUST disable swap in order for the Kubelet to work properly

Verify the MAC Address and product_uuid Are Unique for Every Node

  • You can get the MAC address of the network interfaces using the command ip link or ifconfig -a

  • The product_uuid can be checked by using the command sudo cat /sys/class/dmi/id/product_uuid

Check Network Adapters

If you have more than one network adapter, and your Kubernetes components are not reachable on the default route, we recommend you add IP route(s) so Kubernetes cluster addresses go via the appropriate adapter.

Check Required Ports

Master Cluster Master Node(s)

Protocol

Direction

Port Range

Purpose

TCP

Inbound

6443*

Kubernetes API server

TCP

Inbound

2379-2380

etcd server client API

TCP

Inbound

10250

kubelet API

TCP

Inbound

10251

kube-scheduler

TCP

Inbound

10252

kube-controller-manager

TCP

Inbound

10255

Read-only kubelet API

Worker Node(s)& User Cluster Worker Nodes

Protocol

Direction

Port Range

Purpose

TCP

Inbound

10250

kubelet API

TCP

Inbound

10255

Read-only kubelet API

TCP

Inbound

30000-32767

NodePort Services**

Any port numbers marked with * are overridable, so you will need to ensure any custom ports you provide are also open.

Complete Infra Specifications

Systems
Specification
Spec/Count
Comment

User Accounts/VPN

Dev, UAT and Prod Envs

3

User Roles

Admin, Deploy, ReadOnly

3

OS

Any Linux (preferably Ubuntu/RHEL)

All

Kubernetes as a managed service or VMs to provision Kubernetes

Managed Kubernetes service with HA/DRS

(Or) VMs with 2 vCore, 4 GB RAM, 20 GB Disk

If no managed k8s

3 VMs/env

Dev - 3 VMs

UAT - 3VMs

Prod - 3VMs

Kubernetes worker nodes or VMs to provision Kube worker nodes.

VMs with 4 vCore, 16 GB RAM, 20 GB Disk / per env

3-5 VMs/env

DEV - 3VMs

UAT - 4VMs

PROD - 5VMs

Storage (NFS/iSCSI)

Storage with backup, snapshot, dynamic inc/dec

1 TB/env

Dev - 1000 GB

UAT - 800 GB

PROD - 1.5 TB

VM Instance IOPS

Max throughput 1750 MB/s

1750 MS/s

Storage IOPS

Max throughput 1000 MB/s

1000 MB/s

Internet Speed

Min 100 MB - 1000MB/Sec (dedicated bandwidth)

Public IP/NAT or LB

Internet-facing 1 public ip per env

3

3 Ips

Availability Region

VMs from the different region is preferable for the DRS/HA

at least 2 Regions

Private vLan

Per env all VMs should within private vLan

3

Gateways

NAT Gateway, Internet Gateway, Payment and SMS gateway, etc

1 per env

Firewall

Ability to configure Inbound, Outbound ports/rules

Managed DataBase

(or) VM Instance

Postgres 12 above Managed DB with backup, snapshot, logging.

(Or) 1 VM with 4 vCore, 16 GB RAM, 100 GB Disk per env.

per env

DEV - 1VMs

UAT - 1VMs

PROD - 2VMs

CI/CD server self-hosted (or) Managed DevOps

Self Hosted Jenkins: Master, Slave (VM 4vCore, 8 GB each)

(Or) Managed CI/CD: NIC DevOps or AWS CodeDeploy or Azure DevOps

2 VMs (Master, Slave)

Nexus Repo

Self-hosted Artifactory Repo (Or) NIC Nexus Artifactory

1

DockerRegistry

DockerHub (Or) SelfHosted private docker reg

1

Git/SCM

GitHub (Or) Any Source Control tool

1

DNS

main domain & ability to add more sub-domain

1

SSL Certificate

NIC managed (Or) SDC managed SSL certificate per URL

2 URLs per env

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Last updated 2 years ago

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Unique hostname, MAC address, and product_uuid for every node. Click for more details.

It is very likely that hardware devices will have unique addresses, although some virtual machines may have identical values. Kubernetes uses these values to uniquely identify the nodes in the cluster. If these values are not unique to each node, the installation process may .

** Default port range for .

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fail
NodePort Services
here