Read Configuration using Table/Views

[Sotiris Ioannou]

Hi, 

I'm trying to understand on how to read the configuration out of a Junos device using Tables/Views. I have been through the github and I have found the examples given  for the SRX https://github.com/Juniper/py-junos-eznc/blob/master/lib/jnpr/junos/cfgro/srx.yml.

The Table in the example uses get to retrieve a configuration stanza. I have created a VRF query table below that is in a position to retrieve all the VRF instance names and I can succesfully load all VRF instance names. 

VRF Query table/view

 

VRF:

 get: routing-instances/instance

 args_key: name

 view: VRFView

VRFView:

 fields:

  instance_name: name

I would like to be in a position to retrieve entire sections of the configuration and group per instance, PyEZ techwiki specifies that configuration can be retrieved using Table/View, is there an example? My understanding is that get only returns the value of the field specified in the table.

Is there a way I can achieve this without using dev.cli('command')?

Thanks, 

Sotiris

[NitinKumar]

Hi Sotiris,

Please try out this way:

Yaml file content (change according to your need):

VRF:

  get: routing-instances/instance

  args_key: name

  view: VRFView

VRFView:

 fields:

  instance_name: name

  instance_type: instance-type

  rd_type: route-distinguisher/rd-type

  vrf_import: vrf-import

  vrf_export: vrf-export

Code:

tbl = VRF(dev)

tbl.get(values=True) #make sure to pass values=True

for item in tbl:

    print 'instance_name:', item.instance_name

    print 'instance_type:', item.instance_type

    print 'rd_type:', item.rd_type

    print 'vrf_import:', item.vrf_import

    print 'vrf_export:', item.vrf_export

Above code was meant for below xml(output of "show routing-instances | display xml"), hence according to your need do change the YAML file:

            <routing-instances>

                <instance>

                    <name>blue-vr</name>

                    <instance-type>vrf</instance-type>

                    <interface>

                        <name>fe-0/0/2.0</name>

                    </interface>

                    <route-distinguisher>

                        <rd-type>10.58.255.1:37</rd-type>

                    </route-distinguisher>

                    <vrf-import>test-policy</vrf-import>

                    <vrf-export>test-policy</vrf-export>

                </instance>

                <instance>

                    <name>red-vr</name>

                    <instance-type>vrf</instance-type>

                    <interface>

                        <name>fe-0/0/3.0</name>

                    </interface>

                    <route-distinguisher>

                        <rd-type>10.58.255.1:38</rd-type>

                    </route-distinguisher>

                    <vrf-import>test-policy</vrf-import>

                    <vrf-export>test-policy</vrf-export>

                </instance>

            </routing-instances>

Hope that helps!

Thanks

Nitin Kr

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[Sotiris Ioannou]

Hi Nitin,

Thanks for your guidance on this. I failed to spot that in the help files. :)

 RESERVED :kvargs:

 |        'values' - True/False*, when set to True will cause all data item

 |        values to be retrieved, not just the name-keys.

 |      

 |        'key' - used to retrieve the contents of the table record, and not

 |        just the list of keys (default) [when namesonly=True]

Regards,

Sotiris