liangyuanpeng opened a new issue #6507: wrong k8s yaml config and env do not 
update
URL: https://github.com/apache/pulsar/issues/6507
 
 
   **Describe the bug**  
   
   1.env is not working  
   2. some ``apiVersion``  need update  
   
   **To Reproduce**
   Steps to reproduce the behavior:
   1. Go to ``pulsar/deployment/kubernetes/generic/k8s-1-9-and-above`` or 
``pulsar/deployment/kubernetes/generic/origin``
   2. run  ``kubectl apply -f .``
   3. run ``kubectl pods -w ``
   4. See error:  
   ```
   bookie-tz5j7                         0/1     CrashLoopBackOff   5          
10m
   broker-7c85c49978-87g6h              0/1     CrashLoopBackOff   5          
10m
   broker-7c85c49978-f7548              0/1     CrashLoopBackOff   5          
10m
   broker-7c85c49978-l8xqt              0/1     CrashLoopBackOff   5          
10m
   ```  
   
   container log : 
   ```
   2020-03-07 08:51:57,034 [sun.misc.Launcher$AppClassLoader@18b4aac2] error 
Uncaught exception in thread main: Required zookeeperServers is null,Required 
clusterName is null
   ```
     
   the reason is ``apply-config-from-env.py`` is not working :   
   ```
       # Update values from Env
       for k in sorted(os.environ.keys()):
           v = os.environ[k]
           if k in keys:
               print('[%s] Applying config %s = %s' % (conf_filename, k, v))
               idx = keys[k]
               lines[idx] = '%s=%s\n' % (k, v)
   ``` 
   
   should be replace ``PULSAR_PREFIX_`` to empty : 
   ```
       # Update values from Env
       for k in sorted(os.environ.keys()):
           v = os.environ[k]
   ************************************************************************
           if k.startswith(PF_ENV_PREFIX):
               k = k[len(PF_ENV_PREFIX):]
   ************************************************************************
           if k in keys:
               print('[%s] Applying config %s = %s' % (conf_filename, k, v))
               idx = keys[k]
               lines[idx] = '%s=%s\n' % (k, v)
   ```
   
   **Expected behavior**
   A clear and concise description of what you expected to happen.
   
   **Screenshots**
   If applicable, add screenshots to help explain your problem.
   
   **Desktop (please complete the following information):**
    - k8s version: 1.16.1
   
   **Additional context**
   Add any other context about the problem here.
   

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