I recently create an Azure Kubernetes Service (AKS). I follow this tutorial to create and use an NGINX on my AKS and I create my volumes and deployment. This files already work on another cluster. But for this one, my pods stays in status ContainerCreating

Name: sw-bo-9f7cc5d7d-tms2p Namespace: default Node: aks-agentpool-34372919-2/172.16.35.194 Start Time: Thu, 23 Aug 2018 16:38:44 +0200 Labels: app=sw-bo pod-template-hash=593771838 Annotations:
Status: Pending IP: Controlled By: ReplicaSet/sw-bo-9f7cc5d7d Containers: sw-bo: Container ID: Image: captaincontainerregdev.azurecr.io/sw-bo:latest Image ID: Port: 8080/TCP Host Port: 0/TCP State: Waiting Reason: ContainerCreating Ready: False Restart Count: 0 Limits: memory: 2Gi Requests: memory: 1Gi Environment: APP_SLEEP: 10 SPRING_DATASOURCE_URL: jdbc:postgresql://*************.postgres.database.azure.com:5432/swbo SPRING_PROFILES_ACTIVE: prod,swagger SPRING_DATASOURCE_USERNAME: Optional: false SPRING_DATASOURCE_PASSWORD: Optional: false APPLICATION_PROXY_BASE_URL: https://*************.westeurope.cloudapp.azure.com/api APPLICATION_GEOSERVER_URL: https://*************.westeurope.cloudapp.azure.com/geoserver APPLICATION_GEOSERVER_WORKSPACE: ************* APPLICATION_NODERED_URL: https://*************.westeurope.cloudapp.azure.com/nodered Mounts: /var/run/secrets/kubernetes.io/serviceaccount from default-token-hwhhj (ro) Conditions: Type Status Initialized True Ready False PodScheduled True Volumes: default-token-hwhhj: Type: Secret (a volume populated by a Secret) SecretName: default-token-hwhhj Optional: false QoS Class: Burstable Node-Selectors:
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s node.kubernetes.io/unreachable:NoExecute for 300s Events: Type Reason Age From Message

  ----     ------                    ----              ----                               -------
  Normal   Scheduled                 2m                default-scheduler                  Successfully assigned sw-bo-9f7cc5d7d-tms2p to aks-agentpool-34372919-2
  Normal   SuccessfulMountVolume     1m                kubelet, aks-agentpool-34372919-2  MountVolume.SetUp succeeded for volume "default-token-hwhhj"
  Warning  FailedCreatePodContainer  7s (x10 over 2m)  kubelet, aks-agentpool-34372919-2  unable to ensure pod container exists: failed to create container for /kubepods/burstable/pod3ae78151-a6e2-11e8-a1e7-5a18d5725d34 : mountpoint for devices not found

I started thinking it was a problem on my files but all pods in kube-system failed to same error.

root@frparcaptainpil:~/azure# kubectl -n kube-system get pod
NAME                                                              READY     STATUS              RESTARTS   AGE
addon-http-application-routing-default-http-backend-556559l4h52   0/1       Error               3          1d
addon-http-application-routing-external-dns-59db8c7666-txlf2      0/1       Error               3          1d
addon-http-application-routing-nginx-ingress-controller-86v4rfn   0/1       Completed           8          1d
azure-cni-networkmonitor-65xxm                                    0/1       Error               5          1d
azure-cni-networkmonitor-dwcl5                                    0/1       Error               7          1d
azure-cni-networkmonitor-m7sqc                                    0/1       Error               10         1d
azureproxy-7bb5c9d7fb-bk5wh                                       0/1       Completed           7          1d
heapster-7b6867b589-x7k97                                         0/2       Error               6          1d
kube-dns-v20-55645bfd65-96gb8                                     0/3       Error               3          10h
kube-dns-v20-55645bfd65-qwj29                                     0/3       Error               12         1d
kube-proxy-m5bqh                                                  0/1       Error               10         1d
kube-proxy-q5hch                                                  0/1       Error               7          1d
kube-proxy-rd8qg                                                  0/1       Error               5          1d
kube-svc-redirect-4kjlp                                           0/1       CrashLoopBackOff    8          1d
kube-svc-redirect-52vmh                                           0/1       Error               4          1d
kube-svc-redirect-psc95                                           0/1       Error               8          1d
kubernetes-dashboard-844cf88ddc-f6s8j                             0/1       Error               6          10h
metrics-server-64f6d6b47-4jm24                                    0/1       ContainerCreating   0          10h
omsagent-8zptm                                                    0/1       Error               3          1d
omsagent-rs-675945f67d-ghdps                                      0/1       RunContainerError   5          1d
omsagent-z9m55                                                    0/1       Error               5          1d
omsagent-ztzll                                                    0/1       Error               5          1d
tiller-deploy-f9b8476d-tsh88                                      0/1       Error               2          1d
tunnelfront-78d4bcd765-psq4j                                      0/1       Error               3          1d
zooming-owl-nginx-ingress-controller-58b9fc4854-bffs2             0/1       Error               0          10h
zooming-owl-nginx-ingress-default-backend-585b4794db-2ltrj        0/1       ContainerCreating   0          9m

You can find bellow an example of the description of a kube-system pod:

root@frparcaptainpil:~/azure# kubectl -n kube-system describe pod kube-proxy-q5hch                                                                                                                    
Name:           kube-proxy-q5hch                                                                                                                                                                      
Namespace:      kube-system                                                                                                                                                                           
Node:           aks-agentpool-34372919-2/172.16.35.194                                                                                                                                                
Start Time:     Wed, 22 Aug 2018 12:16:59 +0200                                                                                                                                                       
Labels:         component=kube-proxy                                                                                                                                                                  
                controller-revision-hash=1770405012                                                                                                                                                   
                pod-template-generation=1                                                                                                                                                             
                tier=node                                                                                                                                                                             
Annotations:                                                                                                                                                                                    
Status:         Running                                                                                                                                                                               
IP:             172.16.35.194                                                                                                                                                                         
Controlled By:  DaemonSet/kube-proxy                                                                                                                                                                  
Containers:                                                                                                                                                                                           
  kube-proxy:                                                                                                                                                                                         
    Container ID:  docker://c6f836dc1f6ae22396aaa8e9bb76de12d368915ab5f2fa748128c3c3902adf57                                                                                                          
    Image:         k8s.gcr.io/hyperkube-amd64:v1.10.6                                                                                                                                                 
    Image ID:      docker-pullable://k8s.gcr.io/hyperkube-amd64@sha256:0eb0eed93c81feb6b5694385537a249fd8e271123ba344e853c1eb8b60cd7c85                                                               
    Port:                                                                                                                                                                                       
    Host Port:                                                                                                                                                                                  
    Command:                                                                                                                                                                                          
      /hyperkube                                                                                                                                                                                      
      proxy                                                                                                                                                                                           
      --kubeconfig=/var/lib/kubelet/kubeconfig                                                                                                                                                        
      --cluster-cidr=172.16.35.128/25                                                                                                                                                                 
      --feature-gates=ExperimentalCriticalPodAnnotation=true                                                                                                                                          
    State:          Terminated                                                                                                                                                                        
      Reason:       Error                                                                                                                                                                             
      Exit Code:    2                                                                                                                                                                                 
      Started:      Thu, 23 Aug 2018 14:20:56 +0200                                                                                                                                                   
      Finished:     Thu, 23 Aug 2018 14:23:41 +0200                                                                                                                                                   
    Ready:          False                                                                                                                                                                             
    Restart Count:  7                                                                                                                                                                                 
    Requests:                                                                                                                                                                                         
      cpu:        100m                                                                                                                                                                                
    Environment:                                                                                                                                                                                
    Mounts:                                                                                                                                                                                           
      /etc/kubernetes/certs from certificates (ro)                                                                                                                                                    
      /var/lib/kubelet from kubeconfig (ro)                                                                                                                                                           
      /var/run/secrets/kubernetes.io/serviceaccount from default-token-dsz28 (ro)                                                                                                                     
Conditions:                                                                                                                                                                                           
  Type           Status                                                                                                                                                                               
  Initialized    True                                                                                                                                                                                 
  Ready          False                                                                                                                                                                                
  PodScheduled   True                                                                                                                                                                                 
Volumes:                                                                                                                                                                                              
  kubeconfig:                                                                                                                                                                                         
    Type:          HostPath (bare host directory volume)                                                                                                                                              
    Path:          /var/lib/kubelet                                                                                                                                                                   
    HostPathType:                                                                                                                                                                                     
  certificates:                                                                                                                                                                                       
    Type:          HostPath (bare host directory volume)                                                                                                                                              
    Path:          /etc/kubernetes/certs                                                                                                                                                              
    HostPathType:                                                                                                                                                                                     
  default-token-dsz28:                                                                                                                                                                                
    Type:        Secret (a volume populated by a Secret)                                                                                                                                              
    SecretName:  default-token-dsz28                                                                                                                                                                  
    Optional:    false                                                                                                                                                                                
QoS Class:       Burstable                                                                                                                                                                            
Node-Selectors:  beta.kubernetes.io/os=linux                                                                                                                                                          
Tolerations:     node-role.kubernetes.io/master=true:NoSchedule                                                                                                                                       
                 node.kubernetes.io/disk-pressure:NoSchedule                                                                                                                                          
                 node.kubernetes.io/memory-pressure:NoSchedule                                                                                                                                        
                 node.kubernetes.io/not-ready:NoExecute                                                                                                                                               
                 node.kubernetes.io/unreachable:NoExecute                                                                                                                                             
Events:                                                                                                                                                                                               
  Type     Reason                    Age                From                               Message                                                                                                    
  ----     ------                    ----               ----                               -------                                                                                                    
  Warning  FailedCreatePodContainer  2m (x671 over 2h)  kubelet, aks-agentpool-34372919-2  unable to ensure pod container exists: failed to create container for /kubepods/burstable/pod811f3110-a5f4-
11e8-9151-5a18d5725d34 : mountpoint for devices not found                                                                                                                                             

When I restart the nodes the kube system pods are temporary ready and failed after. I just start with Kubernetes and I don't find any solution at this problem.
I specify that we have security rules on our Virtual Network but the nodes can access to Internet (they pull their images)

Regards