In this blog post I will quickly go over the steps to publish a docker image to docker hub. I will be using a dotnet application I created as part of this repo.


I had docker desktop installed, created an account with Docker Hub and created a public repository.


  1. Pull repo and navigate to Dockerfile
> git clone
Cloning into 'dotnet-health-checks'...
remote: Enumerating objects: 33, done.
remote: Counting objects: 100% (33/33), done.
remote: Compressing objects: 100% (25/25), done.
remote: Total 33 (delta 4), reused 29 (delta 4), pack-reused 0
Receiving objects: 100% (33/33), 11.44 KiB | 1.63 MiB/s, done.
Resolving deltas: 100% (4/4), done.

> cd .\dotnet-health-checks\src\Healthz.Api\
  1. Tag container image

Here I have used a tag made from a repo that I had already setup in docker hub.

> docker build -t matthewregis/public:dotnet-health-checks .
  1. Login into docker hub

Make sure you are logged into to be able to push to docker hub.

> docker login -u matthewregis
Login Succeeded

Logging in with your password grants your terminal complete access to your account.
For better security, log in with a limited-privilege personal access token. Learn more at
  1. Push image to docker hub

The image should exist on your local docker images, now it's a case of pushing it up.

> docker push matthewregis/public:dotnet-health-checks
The push refers to repository []
f0fce0f2d485: Pushed
d50098e78298: Pushed
095a233d22c3: Pushed
7ecd15c472c7: Pushed
2069f56b479d: Pushed
3dab9f8bf2d2: Pushed
dotnet-health-checks: digest: sha256:cb5bf975f3d6affeb31950f3e7c891f08f4392d96b0c891c47be560494aa59c4 size: 1581
  1. Verify image on docker hub

In my case the image was made available at this url I navigated to the public repository first to see if it was listed.