Couchbase and App Issue of Spring Boot with Kubernetes

I try to implement an example of Spring Boot with Couchbase. After implementing docker process, I passed Kubernetes one.

I have some problems when I run kubectl apply -f k8s command after starting minikube and opening its dashboard.

Couchbase throws this issue shown below

Failed to pull image "couchbase:latest": rpc error: code = Unknown desc = context deadline exceeded

The app named todowithcouchbase throws this issue shown below

Failed to pull image "noyandocker/todowithcouchbase:latest": rpc error: code = Unknown desc = context deadline exceeded

The docker image is available through this link

Here are the codes shown below

1 ) app-config.yml

apiVersion: v1
kind: ConfigMap
metadata:
  name: app-config
data:
  COUCHBASE_BUCKET: "todo_list"
  COUCHBASE_HOST: "couchbase"

2 ) couchbase-pv.yml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: couchbase-pv
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: /mnt/data/couchbase
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: couchbase-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi

3 ) couchbase-secret.yml

apiVersion: v1
kind: Secret
metadata:
  name: couchbase-secret
type: Opaque
data:
  username: QWRtaW5pc3RyYXRvcg== # Base64 of 'Administrator'
  password: MTIzNDU2           # Base64 of '123456'

4 ) couchbase-secret.yml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: couchbase
spec:
  selector:
    matchLabels:
      app: couchbase
  serviceName: couchbase
  replicas: 1
  template:
    metadata:
      labels:
        app: couchbase
    spec:
      containers:
        - name: couchbase
          image: couchbase:latest
          ports:
            - containerPort: 8091
            - containerPort: 11210
          env:
            - name: COUCHBASE_ADMINISTRATOR_USERNAME
              valueFrom:
                secretKeyRef:
                  name: couchbase-secret
                  key: username
            - name: COUCHBASE_ADMINISTRATOR_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: couchbase-secret
                  key: password
            - name: COUCHBASE_BUCKET
              valueFrom:
                configMapKeyRef:
                  name: app-config
                  key: COUCHBASE_BUCKET
          volumeMounts:
            - name: couchbase-storage
              mountPath: /opt/couchbase/var
      volumes:
        - name: couchbase-storage
          persistentVolumeClaim:
            claimName: couchbase-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: couchbase-service
spec:
  selector:
    app: couchbase
  ports:
    - name: admin-port
      protocol: TCP
      port: 8091
      targetPort: 8091
    - name: data-port
      protocol: TCP
      port: 11210
      targetPort: 11210
  type: NodePort

5 ) todowithcouchbase-deployment.yml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: todowithcouchbase
spec:
  replicas: 1
  selector:
    matchLabels:
      app: todowithcouchbase
  template:
    metadata:
      labels:
        app: todowithcouchbase
    spec:
      containers:
        - name: todowithcouchbase
          image: noyandocker/todowithcouchbase:latest
          ports:
            - containerPort: 2323
          envFrom:
            - configMapRef:
                name: app-config
            - secretRef:
                name: couchbase-secret
---
apiVersion: v1
kind: Service
metadata:
  name: todowithcouchbase-service
spec:
  selector:
    app: todowithcouchbase
  ports:
    - protocol: TCP
      port: 2323
      targetPort: 2323
  type: NodePort

How can I fix the issue?

Here is the repo link : Link

This is related with my network connection speed. When you have a good network connection speed, you cannot encounter this type of error.