How to Push Docker Image to Docker Hub | Day 9 | Build Tag Push Pull | Full Demo
🐳 Welcome to Day 9 of the Docker Zero to Hero series!
In this video I'll show you how to push your Docker image
to Docker Hub — create an account, login via terminal,
build and tag your image correctly and push it to Docker Hub
and pull it back to verify everything worked!
Docker Hub is the world's largest container registry
and knowing how to push and pull images is an essential
skill for every developer and DevOps engineer!
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🎯 WHY DOCKER HUB IS IMPORTANT TO KNOW
Docker Hub is the default registry for Docker.
Every time you run docker pull nginx or docker pull ubuntu —
you are pulling from Docker Hub.
Knowing how to push your own images to Docker Hub means:
→ Your images are accessible from anywhere in the world
→ Team members can pull and run your image instantly
→ Your CI/CD pipeline can push and pull images automatically
→ You can share your work with the community publicly
This is a foundational skill that every DevOps engineer
uses daily in real projects.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📌 WHAT YOU WILL LEARN IN THIS VIDEO
✅ How to create a Docker Hub account
✅ How to login to Docker Hub from terminal
✅ How to build your Docker image
✅ How to correctly tag image with Docker Hub username
✅ How to push image to Docker Hub repository
✅ How to pull image from Docker Hub to verify
✅ Correct tagging format — username/reponame:tag
✅ Common mistakes beginners make when pushing to Docker Hub
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🔍 WHO IS THIS VIDEO FOR
This video is perfect for you if you are:
👉 A Docker beginner pushing your first image to a registry
👉 A developer who wants to share Docker images with team
👉 A DevOps engineer setting up CI/CD with Docker Hub
👉 Someone preparing for Docker or Kubernetes interviews
👉 Anyone who has been confused by Docker image tagging format
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
💡 COMPLETE DOCKER HUB PUSH FLOW
Step 1 — Create Docker Hub Account
→ Go to hub.docker.com and sign up
→ Create a new public or private repository
→ Note down your Docker Hub username
Step 2 — Login to Docker Hub from Terminal
→ docker login
→ Enter your Docker Hub username and password
→ Should see Login Succeeded message
Step 3 — Build Your Docker Image
→ docker build -t myapp .
→ Verify image is created with docker images
Step 4 — Tag Image with Docker Hub Format
→ docker tag myapp:latest username/myapp:latest
→ Format must be username/repositoryname:tag
→ This is where most beginners make mistakes
Step 5 — Push Image to Docker Hub
→ docker push username/myapp:latest
→ Verify image appears on Docker Hub website
Step 6 — Pull Image from Docker Hub
→ docker pull username/myapp:latest
→ Confirms image is publicly accessible
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠️ COMMON MISTAKES BEGINNERS MAKE
→ Wrong tag format — missing username prefix
Tag must be username/reponame:tag — not just reponame:tag
→ Not logging in before pushing
Always run docker login first — push will fail without it
→ Pushing to wrong repository name
Repository name in tag must exactly match Docker Hub repo name
→ Using wrong Docker Hub username in tag
Copy your exact username from Docker Hub profile
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🔔 SUBSCRIBE TO ayushbuildstech
If you are serious about learning Docker and DevOps
with real hands on tutorials —
Subscribe to ayushbuildstech and hit the bell icon
so you never miss a video in this series!
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
👍 FOUND THIS HELPFUL?
If this video helped you push your first image to Docker Hub —
smash the Like button and subscribe for Day 10!
💬 COMMENT BELOW:
Did you successfully push your image to Docker Hub?
Comment YES below — would love to celebrate with you!
Got an error? Drop it in comments and I will help you fix it!
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🔎 DOCKER ZERO TO HERO SERIES
→ Day 1 — Introduction to Docker
→ Day 2 — Docker Installation + Dockerfile Instructions
→ Day 3 — Dockerize Spring Boot Application
→ Day 4 — Docker Volumes Explained
→ Day 5 — Docker Networks Explained
→ Day 6 — Docker Multi Stage Builds
→ Day 7 — Docker Compose Explained
→ Day 8 — 3 Tier Architecture on Docker + EC2
→ Day 10 — Coming Soon
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
#Docker #DockerHub #DevOps #DockerBeginners
#DockerZeroToHero #DockerPush #ContainerRegistry #ayushbuildstech