See this page for more details on how to Pull an Image from a Private Registry: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/

See this page for details on how to configure a private Docker registry: Set up a private Docker registry (Ubuntu)

Set a variable with the path of the Docker registry certificate:

$ DOCKER_REGISTRY_CERTIFICATE_PATH=~/registry/registry.crt

Set a variable with the host ip address and port of the Docker registry:

$ DOCKER_REGISTRY=192.168.2.22:5000

Install Docker registry certificate into Minikube:

$ cat $DOCKER_REGISTRY_CERTIFICATE_PATH | minikube ssh "sudo mkdir -p /etc/docker/certs.d/$DOCKER_REGISTRY && sudo tee /etc/docker/certs.d/$DOCKER_REGISTRY/ca.crt"

-----BEGIN CERTIFICATE-----
MIIFIDCCAwigAwIBAgIUfIh/TnW6fLW3E6kpNdZhQ4GECsIwDQYJKoZIhvcNAQEL
...
URdSW+SPvJEUafqsGuMrlj70Y3U=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIFIDCCAwigAwIBAgIUfIh/TnW6fLW3E6kpNdZhQ4GECsIwDQYJKoZIhvcNAQEL
...
URdSW+SPvJEUafqsGuMrlj70Y3U=
-----END CERTIFICATE-----
^C

Type ^C to exit.

Create the registry credentials secret:

$ kubectl create secret docker-registry registry-credentials \
    --docker-server=192.168.2.22:5000 \
    --docker-username=admin \
    --docker-password=admin

secret/registry-credentials created

Verify secret creation:

$ kubectl get secret registry-credentials

NAME                   TYPE                             DATA   AGE
registry-credentials   kubernetes.io/dockerconfigjson   1      5m33s

$ kubectl get secret registry-credentials --output="jsonpath={.data.\.dockerconfigjson}" | base64 --decode

{
  "auths": {
    "192.168.2.22:5000": {
      "username": "admin",
      "password": "admin",
      "auth": "YWRtaW46YWRtaW4="
    }
  }
}

$ echo "YWRtaW46YWRtaW4=" | base64 --decode

admin:admin

• Make sure you have logged in to the registry:
  

  $ docker login 192.168.2.22:5000

• Let's tag an existing image:k8s.gcr.io/echoserver:1.4:
  

  $ docker pull k8s.gcr.io/echoserver:1.4

  $ docker tag k8s.gcr.io/echoserver:1.4 192.168.2.22:5000/local_echoserver:1.4

• Push the image to registry:
  

  $ docker push 192.168.2.22:5000/local_echoserver:1.4

  The push refers to repository [192.168.2.22:5000/local_echoserver]
  ...
  6cc9890d69b6: Pushed
  1.4: digest: sha256:6eb2f60a3ca84e3c6c17c9a5a34dbd4f75ff1a1088011d118f5e53626db1ddb7 size: 2602

• Create a deployment: echo-server.yaml
  

  $ vi echo-server.yaml

  apiVersion: apps/v1
  kind: Deployment
  metadata:
    name: echo-server
  spec:
    selector:
      matchLabels:
        app: echo-server
    template:
      metadata:
        labels:
          app: echo-server
      spec:
        containers:
        - name: echo-server
          image: 192.168.2.22:5000/local_echoserver:1.4
        imagePullSecrets:
        - name: registry-credentials

  Note the usage of imagePullSecrets (the authorization token) that references the secret that stores the credentials that are used to access the Docker registry.
  
  
• Deploy echo-server.yaml:
  

  $ kubectl apply -f echo-server.yaml

  deployment.apps/echo-server created

• Print events:
  

  $ kubectl get events

  
  LAST SEEN   TYPE      REASON              OBJECT                            MESSAGE
  27s         Normal    Scheduled           pod/echo-server-d855cd55-9sg2s    Successfully assigned default/echo-server-d855cd55-9sg2s to minikube
  26s         Normal    Pulling             pod/echo-server-d855cd55-9sg2s    Pulling image "192.168.2.22:5000/local_echoserver:1.4"
  22s         Normal    Pulled              pod/echo-server-d855cd55-9sg2s    Successfully pulled image "192.168.2.22:5000/local_echoserver:1.4"
  22s         Normal    Created             pod/echo-server-d855cd55-9sg2s    Created container echo-server
  22s         Normal    Started             pod/echo-server-d855cd55-9sg2s    Started container echo-server
  27s         Normal    SuccessfulCreate    replicaset/echo-server-d855cd55   Created pod: echo-server-d855cd55-9sg2s
  27s         Normal    ScalingReplicaSet   deployment/echo-server            Scaled up replica set echo-server-d855cd55 to 1