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Ed_Summers's avatar
Ed_Summers
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Jan 19, 2017

F5 Python SDK: How to get virtual server availability?

Due to my limited Python and SDK experience I am finding it difficult to easily obtain the availability state of a virtual server. Given a 'virtual' object, what is the best/easiest way to return the...
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Rob_74473's avatar
Rob_74473
Icon for Cirrus rankCirrus
Apr 25, 2018

I'm also struggling with this:

partition  = 'C25'
pool_name = 'temp_test'
 {u'https://localhost/mgmt/tm/ltm/pool/~C25~temp_test/~C25~temp_test/stats': {u'nestedStats': {u'entries': {u'activeMemberCnt': {u'value': 1},
pool  = mgmt.tm.ltm.pools.pool.load(name=pool_name, partition=partition)
stats = pool.stats.load()
print("{}".format(pformat(stats.entries)))

selflink = "https://{0}/mgmt/tm/ltm/pool/~{1}~{2}/~{1}~{2}/stats".format(bigip,partition,pool_name)

slink   = stats.entries.get(selflink)
nested  = slink.get('nestedStats')
entries = nested.get('entries')

activeMemberCnt = entries.get('activeMemberCnt').get('value')

Output:

Traceback (most recent call last):
  File "test_f5.py", line 46, in 
    nested  = slink.get('nestedStats')
AttributeError: 'NoneType' object has no attribute 'get'

So, using the example above, I am not able to get the selflink, but I have created the selflink string from what's given in the raw output. I'm working against: BIG-IP 12.1.3 Build 0.0.378 Final

  • Rob_74473's avatar
    Rob_74473
    Icon for Cirrus rankCirrus
    Apr 25, 2018

    Directly testing the code above:

     

    name = 'DHCP_RELAY_255.255.255.255_VIP'
selflink = 'https://{0}/mgmt/tm/ltm/virtual/{1}/~Common~{1}/stats'.format(bigip,name)
vip = mgmt.tm.ltm.virtuals.virtual.load(name=name)
vipstats = vip.stats.load()
d = vipstats.entries.get(selflink).get('nestedStats').get('entries')
for i in d:
  print("{0}: {1}".format(i, d[i].get('value')))

    I get the same error:

     

    Traceback (most recent call last):
  File "test_f5.py", line 39, in 
    d = vipstats.entries.get(selflink).get('nestedStats').get('entries')
AttributeError: 'NoneType' object has no attribute 'get'
  • Rob_74473's avatar
    Rob_74473
    Icon for Cirrus rankCirrus
    Apr 25, 2018

    See answer below...