dynamic secret in pod mounted as volume definition files

# iwant to test out a pod getting a new configmap or secret value in a volume
# 1. k create this file
# 2. k exec my pod --stdin --tty -- cat /etc/config/db-url
# 3. notice it prints out localhost:54321
# 4. edit configmap file with a new db-url value and k apply the change
# 5. k exec my pod --stdin --tty -- cat /etc/config/db-url
# 6. notice that after a few second, the new value is printed


apiVersion: v1
data:
  db-url: localhost:54321
kind: ConfigMap
metadata:
  creationTimestamp: null
  name: my-configmap
---
apiVersion: v1
data:
  passwd: MTIzNDU=
kind: Secret
metadata:
  creationTimestamp: null
  name: my-secret
---
apiVersion: v1
kind: Pod
metadata:
  name: my-pod
spec:
  containers:
    - name: my-container
      image: my-image
      volumeMounts:
        - name: config-volume
          mountPath: /etc/config
        - name: secret-volume
          mountPath: /etc/secret
  volumes:
    - name: config-volume
      configMap:
        name: my-configmap
    - name: secret-volume
      secret:
        secretName: my-secret