Docker Compose & Container Management – Bangalore Tutorial

Introduction

In Bangalore 2025, if you can’t spin up a full microservices stack (frontend + backend + Redis + PostgreSQL + Traefik) with a single command — you’re already behind.

Docker Compose is the #1 tool used by every top company in Bangalore to develop, test, and run multi-container applications locally and in production (via AWS ECS Compose or Kubernetes with Kompose). Whether you’re at Swiggy deploying 2000+ services or a startup in Koramangala launching an MVP, Compose is your daily driver.

DevOps Training Institute labs. Start your containers on a clean base by mastering package management on your Docker host first.

Why Bangalore Companies Love Docker Compose in 2025

• Flipkart uses Compose for local dev of 5000+ microservices
• Swiggy runs 3000+ containers defined in Compose before migrating to ECS
• PhonePe mandates Compose knowledge in every DevOps interview
• 95% of Bangalore startups use Compose for CI/CD preview environments
• Zero learning curve — same YAML works locally and on AWS ECS with one command

Setting Up Docker Compose on Ubuntu (Bangalore Standard)

# Update system
sudo apt update

# Install Docker (if not already)
curl -fsSL https://get.docker.com | sh

# Install Docker Compose v2 (2025 standard)
sudo apt install docker-compose-plugin

# Verify
docker compose version
# Output: Docker Compose version v2.29.1

Pro tip: All DevOps Training Institute labs use Ubuntu 22.04 LTS with Compose v2 plugin — no more standalone binary.

Your First Multi-Container App – LEMP Stack in 2 Minutes

Create a folder “bangalore-lemp” and add docker-compose.yml:

version: "3.9"
services:
  nginx:
    image: nginx:alpine
    ports:
      - "8080:80"
    volumes:
      - ./html:/usr/share/nginx/html:ro
    depends_on:
      - php
    networks:
      - internal

  php:
    image: php:8.3-fpm-alpine
    volumes:
      - ./html:/var/www/html
    networks:
      - internal

  mariadb:
    image: mariadb:11
    environment:
      MYSQL_ROOT_PASSWORD: secret123
      MYSQL_DATABASE: bangalore_app
    volumes:
      - db_data:/var/lib/mysql
    networks:
      - internal

volumes:
  db_data:

networks:
  internal:

Run: docker compose up -d → Visit http://localhost:8080 → Done!

Choose efficient base images by understanding binary installations vs source builds — alpine saves 90% disk space.

Essential Docker Compose Features Every Bangalore Engineer Uses Daily

Health Checks (Interview Favorite)

services:
  app:
    image: myapp:latest
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s

Secrets Management (Production Must)

secrets:
  db_password:
    file: ./secrets/db_password.txt

services:
  db:
    image: postgres:16
    secrets:
      - db_password
    environment:
      POSTGRES_PASSWORD_FILE: /run/secrets/db_password

Scaling Services

docker compose up -d --scale worker=5 --scale web=3

Custom Networks & DNS

services:
  api:
    networks:
      frontend:
        aliases:
          - api.local

Depends On with Conditions

depends_on:
  db:
    condition: service_healthy

Production-Grade docker-compose.yml Used at PhonePe (2025)

version: "3.9"
services:
  traefik:
    image: traefik:v3.0
    command:
      - "--api.dashboard=true"
      - "--providers.docker=true"
    ports:
      - "80:80"
      - "443:443"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - traefik_certs:/certificates
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.dashboard.rule=Host(`traefik.bangalore.local`)"
    healthcheck:
      test: ["CMD", "traefik", "healthcheck"]
      interval: 10s

  app:
    build: ./app
    deploy:
      replicas: 6
      restart_policy:
        condition: on-failure
        delay: 5s
        max_attempts: 3
    healthcheck:
      test: wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1
      interval: 30s
      timeout: 5s
      retries: 3
    depends_on:
      traefik:
        condition: service_healthy

Keep your containers patched — automate package updates inside images using multi-stage builds.

Deploying Compose to AWS – Bangalore’s #1 Path

• Option 1: ECS with Compose (one-click): aws ecs create-cluster → docker compose up --compatibility (uploads directly)
• Option 2: EKS + Kompose: kompose convert -f docker-compose.yml → kubectl apply -f *
• Option 3: EC2 self-managed fleet with systemd + Compose

Common Bangalore Interview Questions on Docker Compose

• Difference between docker compose up and docker compose up --compatibility?
• How do you override environment variables per environment (dev/staging/prod)?
• Explain depends_on vs healthcheck vs service_healthy
• How to do zero-downtime deployment with Compose?
• What is .env file and how Compose uses it?

Free Docker Compose Workshops in Bangalore

Join DevOps Training Institute every Saturday 10 AM:

• “Build a Full-Stack App with Docker Compose” – MG Road
• “Migrate Legacy Apps to Compose” – Rajajinagar
• “Docker Compose to AWS ECS Hands-On” – Online Live

Configure persistent storage efficiently with custom repositories for your app packages.

Conclusion

In Bangalore 2025, Docker Compose isn’t optional — it’s the fastest way to go from idea to running stack, whether you’re at a startup in Indiranagar or scaling at Flipkart.

Master it once → use it everywhere: local dev, CI previews, staging, and even production via ECS.

Join the next free Compose workshop at DevOps Training Institute and deploy your first production-grade stack this weekend.

Frequently Asked Questions

Is Docker Compose used in production?

Yes — via AWS ECS, Azure ACI, or self-managed with systemd. Never on Docker Swarm (deprecated).

docker-compose vs docker compose command?

Old: docker-compose (Python). New 2025: docker compose (Go plugin) — 10x faster.

Can I use Compose with Kubernetes?

Yes — Kompose converts Compose → Helm/K8s manifests.

Best editor for docker-compose.yml in Bangalore?

VS Code + Docker extension + YAML language server (used by 90% engineers).

How many services can Compose handle?

1000+ in production (PhonePe runs 800+ services defined in Compose files).