Current Situation

I have a Kubernetes cluster created on DigitalOcean. I want to deploy a Docker image that is hosted in a private that in turn belongs to an organization in Docker Hub.

• Docker Hub organization name (sample): myorg
• Docker Hub repository name (sample): myorg/mo-server

So in order to push a new image I use docker push myorg/mo-server

(Note: The example above contains a dash (-) in the name of the image which I have in the real name as well)

Problem

When I try to deploy that docker image to kubernetes using kubectl the deployment always ends up in status ErrImagePull. Error message:

ailed to pull image "index.docker.io/myorg/mo-server": rpc error: code = Unknown desc = Error response from daemon: pull access denied for myorg/mo-server, repository does not exist or may require 'docker login'

What I tried so far

Because it is a private repository I'm creating a secret beforehand. For this, I'm using the username and E-Mail of myself.

set DOCKER_REGISTRY_SERVER=https://index.docker.io/v1/
set DOCKER_USER=sarensw
set DOCKER_EMAIL=stephan@myorg.com
set DOCKER_PASSWORD=...

The credentials are the same as when I use docker login. Then I create a secret using:

kubectl create secret docker-registry regcred 
  --docker-server=%DOCKER_REGISTRY_SERVER% 
  --docker-username=%DOCKER_USER% 
  --docker-password=%DOCKER_PASSWORD% 
  --docker-email=%DOCKER_EMAIL%

Then, I use kubectl create to create a new deployment.

kubectl create -f ci\helper\kub-deploy-staging.yaml

kub-deploy-staging.yaml looks as follows:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: mo-server
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mo-server
  template:
    metadata:
      labels:
        app: mo-server
    spec:
      containers:
        - name: mo-server
          image: index.docker.io/myorg/mo-server
          imagePullPolicy: Always
          command: [ "echo", "SUCCESS" ]
      imagePullSecrets:
        - name: regcred

The result is ErrImagePull as described above.

I'm pretty sure that the image: index.docker.io/myorg/mo-server is the culprit because it is an organization image that I try to use with a normal account. And all the tutorials for accessing a private image do not take organizations into account.

So what am I doing wrong?

(one of many similar) references: https://gist.github.com/rkuzsma/b9a0e342c56479f5e58d654b1341f01e