no azure-npm logs after deployed in a k8s cluster

[andyzhangx]

Is this a request for help?:

No matter azure-npm is running or failing, there are no logs

$ kubectl logs azure-npm-z5v69 -c azure-npm -n kube-system

azure-npm:
    Container ID:   docker://0c589086820837cc4887699984c73c9611bf6af89bebfe33148ab4eb8105a8a7
    Image:          mcr.microsoft.com/containernetworking/azure-npm:v1.0.28
    Image ID:       docker-pullable://mcr.microsoft.com/containernetworking/azure-npm@sha256:c81d70c81eadeb811e66c69d68b2d16195c59c6797c7b5647ec88270e25201e8
    Port:           <none>
    Host Port:      <none>
    State:          Waiting
      Reason:       CrashLoopBackOff
    Last State:     Terminated
      Reason:       Completed
      Exit Code:    0
      Started:      Thu, 14 Nov 2019 05:56:53 +0000
      Finished:     Thu, 14 Nov 2019 05:56:53 +0000
    Ready:          False
    Restart Count:  6
    Environment:
      HOSTNAME:   (v1:spec.nodeName)
    Mounts:
      /run/xtables.lock from xtables-lock (rw)
      /tmp from tmp (rw)
      /var/log from log (rw)
      /var/run from socket-dir (rw)
      /var/run/secrets/kubernetes.io/serviceaccount from azure-npm-token-xvgfh (ro)

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Is this an ISSUE or FEATURE REQUEST? (choose one):

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Which release version?:

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Which component (CNI/IPAM/CNM/CNS):

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Which Operating System (Linux/Windows):

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For Linux: Include Distro and kernel version using "uname -a"

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For windows: provide output of "$(Get-ItemProperty -Path "C:\windows\system32\hal.dll").VersionInfo.FileVersion"

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Which Orchestrator and version (e.g. Kubernetes, Docker)

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What happened:

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What you expected to happen:

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How to reproduce it (as minimally and precisely as possible):

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Anything else we need to know:

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[jaer-tsun]

the logs should exist on the agent nodes under /var/log/azure-npm.log*

[jaer-tsun]

NPM will write to stdout after this merges #449