How to have a list with more than one key?

YANG
1

I would like to model a show command as follows:

show application app appA version
show application app appB version

I am using a list node named ‘application’ that takes in two keys ‘app’ and ‘version’, where appA and appB are the possible values for the ‘app’ key and version has a string value.

My model looks like this:

list application 
{
        tailf:cli-incomplete-show-path;
        key "app version";
        config false;

        leaf app {
                   type enumeration {
                       enum appA;
                       enum appB;
                    }
         }
         leaf version {
                   type string {
                        length "1..32";
                   }
          }
}

With this model, when I do a show application app appA, I get an error message that the command has a syntax error at “app”. Could you tell me where I am going wrong here?

2

Unless you declare in your data model otherwise, you do not provide key leaf names in the CLI line, so your command should be like show application appA 1.2.3.

3

Thanks! What if I want to make the “version” key optional? That is, I want to be able to say:

show application appA

to list information about all the versions of appA

(or)

show application appA 1.2.3

to list information about version 1.2.3 of appA?

How could I achieve that? What changes do I need in my model above?

4

You should be able to do that without any data model changes, I believe.