How to mount local volume hostPath with AKS?

Question

I am trying to create a Kubernetes pod and mounting a volume from local hostpath. I am using Azure Kubernetes cluster. Following is my yaml for creating pod

apiVersion: v1
kind: Pod
metadata:
  name: test-pd
spec:
  containers:
  - name: nginx
    image: nginx:1.7.9
    ports:
    - containerPort: 80
    volumeMounts:
    - mountPath: /opt/myfolder
      name: test-volume
  volumes:
  - name: test-volume
    hostPath:
      # directory location on host
      path: /Users/kkadam/minikube/myfolder
      # this field is optional

I have few files under myfolder which I want to use inside container. Files are present in local volume but not inside container.

What could be an issue?

is you pod scheduled on same node as where you have the hostPath !! — DT.
@HarshManvar I meant from my local system, not from the nodes. But I guess I will have to make sure that folder which I mapping for hostPath should exist on node — Komal Kadam
You should create host path on aks-agentpool-29453832-vmss000000 and copy your data to that hostPath on aks node .. in short host path on your local laptop will not be mounted on AKS .. also note every time your pod is rebuild it can choose a different node and hostPath is node specific .. so if you are looking for persistent data across restarts of container you need to use nfs kind of solution .. — DT.

Harsh Manvar Harsh Manvar · Accepted Answer · 2020-02-13T10:19:28

You can not add local path to container running on AKS. You have to add the file on specific node where POD is scheduled.

If both are on same node POD and files then you can mount the files as the volume to the container and use it.

However if your POD is schedule to another node then you will not be able to access the files inside the container.

If due to any reason your node restarted or deleted during auto-scaling you might lose the data.

How to mount local volume hostPath with AKS?

2 Answers