join multiple target keys if they exist and compile into one file with jsonnet.

[owlzq1]

Trying to do something like this:

local kap = import 'lib/kapitan.libjsonnet';
local inv = kap.inventory();
local projects = {
  projects: inv.parameters.projects + inv.parameters.service_accounts,
};
{
  namespaces: projects,
}

How can i make it ignore the possible absence of inv.parameters.service_accounts and compile it properly?

[owlzq1]

@ademariag suggested to look into utils.libjsonnet in kapitan-reference for the objectGet helper function.
But i decided to switch the component to kadet, where this issue solves more easily. Here is the snippet:

from kapitan.inputs.kadet import BaseObj, inventory
inv = inventory()


class Namespaces(BaseObj):

    def body(self):
        self.root.projects = inv.parameters.projects
        if inv.parameters.service_accounts:
            self.root.service_accounts = inv.parameters.service_accounts


def main():
    obj = BaseObj()
    obj.root.namespaces = Namespaces()
    return obj