No documentation for pulling an image from the registry

[S1naHeidari]

Hello everyone,
I am using this helm chart to set up a local docker registry inside my cluster. After I installed the chart, it asks to enter the following two commands:

export POD_NAME=$(kubectl get pods --namespace default -l "app=docker-registry,release=docker-registry" -o jsonpath="{.items[0].metadata.name}")

kubectl -n default port-forward $POD_NAME 8080:5000

Then I was able to push my locally created image to the registry with the following command:
docker push 127.0.0.1:8080/random-scheduler:v1
Now I can pull or push the image using docker, but when I reference this image inside a deployment I get an error. The following is the deployment file that uses random-scheduler:v1 image:

apiVersion: v1
kind: ReplicationController
metadata:
  name: random-scheduler
spec:
  replicas: 1
  selector:
    app: random-scheduler
  template:
    metadata:
      name: random-scheduler
      labels:
        app: random-scheduler
    spec:
      containers:
      - name: random-scheduler-container
        image: 127.0.0.1:8080/random-scheduler:v1
        ports:
        - containerPort: 9999

When I apply this file, the following is the output of kubectl describe of the pod:

Events:
  Type     Reason     Age                From               Message
  ----     ------     ----               ----               -------
  Normal   Scheduled  14s                default-scheduler  Successfully assigned default/random-scheduler-cfqvr to k8s-n-2
  Normal   BackOff    11s (x2 over 13s)  kubelet            Back-off pulling image "127.0.0.1:8080/random-scheduler:v1"
  Warning  Failed     11s (x2 over 13s)  kubelet            Error: ImagePullBackOff
  Normal   Pulling    0s (x2 over 13s)   kubelet            Pulling image "127.0.0.1:8080/random-scheduler:v1"
  Warning  Failed     0s (x2 over 13s)   kubelet            Failed to pull image "127.0.0.1:8080/random-scheduler:v1": rpc error: code = Unknown desc = failed to pull and unpack image "127.0.0.1:8080/random-scheduler:v1": failed to resolve reference "127.0.0.1:8080/random-scheduler:v1": failed to do request: Head http://127.0.0.1:8080/v2/random-scheduler/manifests/v1: dial tcp 127.0.0.1:8080:
connect: connection refused
  Warning  Failed     0s (x2 over 13s)   kubelet            Error: ErrImagePull

What is the correct way to reference this image inside my deployment?

[IanMoroney]

old thread, but @S1naHeidari , instead you can try the image reference as:
docker-registry:5000/random-scheduler:v1

if you have the docker-registry deployed inside the same kubernetes cluster as random-scheduler, then you don't need to use the port forward, you just have to point the deployment at the registry in the same namespace.

If the deployment is in a different namespace to the docker-registry, then include the namespace in the host reference.
i.e. `mynamespace.docker-registry:5000