Example for Configuring an Assistant for Automatic Health Check (Using a Python Script)

Procedure

1. Compile a Python script.

   # Compile a Python script named health.py.

   In the Python script, set the trigger condition as the timer and the task as executing commands to collect device information, including hardware status, route status, and interface link status, and to send the information to the TFTP server. The Python script is as follows:

   # Define the function of the trigger condition.
   def ops_condition(_ops):
   	_ops.timer.cron("con1","0 1 * * * *")      # Set the timer event.
   	_ops.correlate("con1")
   
   # Define the functions of tasks.
   def ops_execute(_ops):
   	handle, err_desp  = _ops.cli.open()      # Open the CLI channel.
   	_ops.cli.execute(handle,"display device > health.txt")      # Execute CLIs.
   	_ops.cli.execute(handle,"display health >> health.txt")
   	_ops.cli.execute(handle,"display ip routing-table >> health.txt")
   	_ops.cli.execute(handle,"display lldp neighbor brief >> health.txt")
   	_ops.cli.execute(handle,"tftp 10.2.1.1 put health.txt")
   	ret = _ops.cli.close(handle)      # Close the CLI channel.
   	return 0
   

2. Upload and install the Python script.

   # Configure DeviceA functioning as a TFTP client to download the Python script file health.py from the TFTP server. The Python script is stored on the TFTP server.

   <HUAWEI> system-view
   [~HUAWEI] sysname DeviceA
   [*HUAWEI] commit
   [~DeviceA] quit
   <DeviceA> tftp 10.2.1.1 get health.py
   Info: Transfer file in binary mode.
   Please wait for a while...
   /    635 bytes transferred
   Info: Downloaded the file successfully.
   

   # Install the Python script on DeviceA.

   <DeviceA> ops install file health.py
   

3. Configure a script assistant.

   <DeviceA> system-view
   [~DeviceA] ops
   [~DeviceA-ops] script-assistant python health.py
   [*DeviceA-ops] commit
   [~DeviceA-ops] return
   

4. Verify the configuration.

   # Check the configuration of the assistant.

   <DeviceA> display ops assistant verbose name health.py
   Assistant information
     Name                 : health.py
     State                : ready
     Type                 : script
     Default assistant    : no
    Running statistics
     Running times        : 0
     Queue size/(free)    : 10/(10)
     Skip for queue full  : 0
     Skip for delay       : 0
     Skip for suppression : 0
     Skip for error       : 0
    Execute information
     Task abstract        : health.py : ops_execute()
    Trigger control
     Occurs threshold     : 1
     Period (s)           : 0
     Delay (s)            : 0
     Suppress max         : 0
     Hits in period       : 0
    Condition information
     Correlate expression : con1
     Condition tag        : con1
       Condition type     : timer
       Subscribe result   : success
       Occurs threshold   : 0
       Period (s)         : 0
       Hits in period     : 0