DIGIT Core
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2.9-LTS
2.9-LTS
  • 🖥️Platform
    • Overview
    • Why DIGIT?
    • Principles
    • Architecture
      • Service Architecture
      • Technology Architecture
        • Open Source Tools
      • Infrastructure Architecture
      • Deployment Architecture
    • API Specifications
      • Access Control
      • Boundary
      • Document Uploader
      • Encryption
      • File Store
      • ID Generation
      • Indexer
      • Localisation
      • Master Data Management
      • OTP
      • Payment Gateway
      • PDF Generation
      • URL Shortner
      • WhatsApp Chatbot
      • Workflow
    • Core Services
      • Access Control Services
      • Audit Service
        • Signed Audit Performance Testing Results
      • API Gateway
        • Configuring Gateway Rate Limiting
      • Boundary Service
        • Migrate Old Boundary Data - Steps
      • Email Notification Service
      • Encryption Service
        • Encryption Client Library
        • User Data Security Architecture
        • Guidelines for supporting User Privacy in a module
      • FileStore Service
      • ID Generation Service
      • Indexer Service
        • Indexer Configuration
      • Internal Gateway
      • Location
      • Localization Service
        • Configuring Localization
          • Setup Base Product Localisation
          • Configure SMS and Email
      • MDMS V2 (Master Data Management Service)
        • Adopt New MDMS - Steps
        • 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
        • MDMS Migration
      • OTP Service
      • Payment Gateway Service
      • PDF Generation Service
      • Persister Service
        • Persister Configuration
      • Service Request
      • SMS Notification Service
        • Setting Up SMS Gateway
          • Using The Generic GET & POST SMS Gateway Interface
      • User
        • User Session Management
      • User OTP Service
      • URL Shortening Service
      • Workflow
        • Setting Up Workflows
        • Configuring Workflows For An Entity
        • Workflow Auto Escalation
        • Migration To Workflow 2.0
      • Libraries
        • Tracer Library
        • Encryption Client
      • Accelerators
        • Inbox Service
    • DIGIT: How-Tos
      • SMS Template Approval Process
      • Notification Enhancement Based On Different Channel
    • Releases
      • DIGIT 2.9 LTS
        • Test Automation
        • Release Checklist
        • Service Build Updates
          • Hotfix
        • Test Cases
        • Automated DIGIT Deployment
        • Upgrade Guide: Transitioning DIGIT Modules to Spring Boot Version 3.2.2
        • Postgres Upgrade: Service Code Changes
        • Updating RDS Version in AWS
        • LTS DIGIT Migration - v2.8 To v2.9
        • Changelog
        • Backup PostgreSQL Database In AWS - Steps
    • Source Code
  • 📓Guides
    • Installation Guide
      • Infrastructure Setup
        • AWS
          • 1. Pre-requisites
          • 2. Setup AWS Account
          • 3. Provision Infrastructure
          • 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
      • DIGIT Deployment
        • Full Deployment
          • Deploy DIGIT
            • Prepare Deployment Configuration
        • Full Deployment (Beta)
          • Creating New HelmChart
          • Prepare Helm Release Chart
      • Quick Setup (AWS)
    • Data Setup Guide
      • Bootstrap DIGIT
      • Productionize DIGIT
      • User Module
      • Localisation Module
      • Location Module
      • MDMS - V2
    • 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
        • 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
      • UI Developer Guide
        • DIGIT-UI
          • UI Components Standardisation
            • DIGIT UI Core React Components
            • DIGIT UI Core Flutter Components
              • Input Field
              • Radio
              • Toggle
              • Button
              • Dropdown
              • Checkbox
              • Toast
              • Info Card
            • DIGIT UI Components v0.2.0
              • Foundation
                • Typography
                • Colour Pallete
                • Spacer
              • Atom
                • Accordion
                • Button
                • Checkbox
        • DIGIT UI Development Pre-requisites
        • UI Configuration (DevOps)
        • Local Development Setup
        • Run Application
        • Build & Deploy
        • Pre-defined Screens In DIGIT-UI
          • Create Screen (FormComposer)
          • Inbox/Search Screen
          • Workflow Component
        • Create a New UI Module/Package
          • Project Structure
          • Install Dependency
          • Module.js
          • Import Required Components
          • Common Hooks
        • Employee Module Setup
          • Write Employee Module Code
          • Create Form - Create Screen
        • Citizen Module Setup
          • Sample screenshots
          • Citizen Landing Screen
          • Write Citizen Module Code
        • Customisation
          • Integrate External Web Application/UI With DIGIT UI
          • Utility - Pre-Process MDMS Configuration
          • CSS Customisation
          • Kibana Dashboard Integration With DSS Module
          • Login Page
        • Setup Monitoring Tools
        • Android Web View & How To Generate APK
        • FAQs
          • Troubleshoot Using Browser Network Tab
          • Debug Android App Using Chrome Browser
      • Flutter (Mobile App) 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
    • Operations Guide
      • DIGIT - Infra Overview
      • Kubernetes
        • RBAC Management
        • Database 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
      • Customise Existing Terraform 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
            • Elastic Search Rolling Upgrade
            • ElasticSearch Direct Upgrade
        • Core services
        • DIGIT apps
        • DSS dashboard
      • Observability
        • ES-Curator - Clear Old Logs/indices
        • Monitoring
        • Environment Changes
        • 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
    • Implementation Guide
    • Security & Privacy Guide
      • Security & Privacy Guidelines For Product Developers
      • Security & Privacy Guidelines For Solution Implementing Agencies
      • Security & Privacy Guidelines For Program Owners
  • 🚀Accelerators
    • UI Frameworks
      • Service Build Updates
    • Integrations
      • Payment
      • Notification
      • Transaction
      • Verification
      • View
      • Calculation
    • Concepts
      • Deployment - Key Concepts
        • Security Practices
        • Readiness & Liveness
        • Resource Requests & Limits
        • Deploying DIGIT Services
        • Deployment Architecture
        • Routing Traffic
        • Backbone Deployment
    • API Playground
    • Sandbox
    • Checklists
      • API Checklist
      • Security Checklist
        • Security Guidelines Handbook
        • Security Flow - Exemplar
      • Performance Checklist
      • Deployment Checklist
    • Contribute
    • Discussion Board
    • Academy
    • Events
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On this page
  • Know what is put in version control
  • Testing
  • Pipelines
  • 1. Application Development
  • 2. Governance
  • 3. Cluster Configuration

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  1. Accelerators
  2. Checklists

Deployment Checklist

To ensure smooth deployments and minimize potential issues, it's crucial to follow a thorough checklist. Here's a high-level overview:

  1. Know what is going to get deployed

  2. Excessive testing; preferably using a pipeline with automated tests

  3. Know when is going to get deployed

  4. Create backups

  5. Deploy to production

  6. Test on the live server

By adhering to this checklist, you can enhance control over deployments and reduce the likelihood of complications.

Know what is put in version control

Testing

Pipelines

1. Application Development

Health checks

  • Containers have Readiness probes

  • Containers crash when there's a fatal error

  • Configure a passive Liveness probe

  • Liveness probes values aren't the same as the Readiness

Apps are independent

  • The Readiness probes are independent

  • The app retries connecting to dependent services

Graceful shutdown

  • The app doesn't shut down on SIGTERM, but it gracefully terminates connections

  • The app still processes incoming requests in the grace period

  • The CMD in the Dockerfile forwards the SIGTERM to the process

  • Close all idle keep-alive sockets

Fault tolerance

  • Run more than one replica for your Deployment

  • Avoid Pods being placed into a single node

  • Set Pod disruption budgets

Resources utilisation

  • Set memory limits and requests for all containers

  • Set CPU request to 1 CPU or below

  • Disable CPU limits — unless you have a good use case

  • The namespace has a LimitRange

  • Set an appropriate Quality of Service (QoS) for Pods

Tagging resources

  • Resources have technical labels defined

  • Resources have business labels defined

  • Resources have security labels defined

Logging

  • The application logs to stdout and stderr

  • Avoid sidecars for logging (if you can)

Scaling

  • Containers do not store any state in their local filesystem

  • Use the Horizontal Pod Autoscaler for apps with variable usage patterns

  • Don't use the Vertical Pod Autoscaler while it's still in beta

  • Use the Cluster Autoscaler if you have highly varying workloads

Configuration and secrets

  • Externalise all configuration

  • Mount Secrets as volumes, not environment variables

2. Governance

Namespace limits

  • Namespaces have LimitRange

  • Namespaces have ResourceQuotas

Pod security policies

  • Enable Pod Security Policies

  • Disable privileged containers

  • Use a read-only filesystem in containers

  • Prevent containers from running as root

  • Limit capabilities

  • Prevent privilege escalation

Network policies

  • Enable network policies

  • There's a conservative NetworkPolicy in every namespace

Role-Based Access Control (RBAC) policies

  • Disable auto-mounting of the default ServiceAccount

  • RBAC policies are set to the least amount of privileges necessary

  • RBAC policies are granular and not shared

Custom policies

  • Allow deploying containers only from known registries

  • Enforce uniqueness in Ingress hostnames

  • Only use approved domain names in the Ingress hostnames

3. Cluster Configuration

Approved Kubernetes configuration

  • The cluster passes the CIS benchmark

  • Disable metadata cloud providers metada API

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