Hiera array problem

[Begum Tuncer]

Hello,
I've a problem with hiera and functions.

I'd like to manage a postgresql role like this:
 

postgresql::server::role { 'marmot':
  password_hash => postgresql_password('marmot', 'mypasswd'),
}

In above, how can I use hiera in the function part?

I tried:
  postgresql::server::role { [hiera(my::db::user)]:
    password_hash => postgresql_password([hiera(my::db::user), hiera(my::db::pass)]),
  }

where hiera variables:
my::db::user: 'marmot'
my::db::pass: 'mypasswd'

The error was:
Error 400 on SERVER: can't convert Array into String

I also tried a merged hiera variable as array but it didnt work either:

  postgresql::server::role { [hiera(my::db::user)]:
    password_hash => postgresql_password([hiera(my::db::userpass)]),
  }

where i defined the hiera variable as array,
  my::db::userpass:
    - 'marmot'
    - 'mypasswd'

But got an error like this:
Error 400 on SERVER: postgresql_password(): Wrong number of arguments given (1 for 2)

I also tried hiera_array and hiera_hash but none of them helps.

Any clues?

[Alex Elman]

You're passing a single array into postgresql_password() when it expects two string arguments in your first example. Try removing the right angle brackets that are fencing your two hiera calls.

 postgresql::server::role { [hiera(my::db::user)]:

    password_hash => postgresql_password(hiera(my::db::user), hiera(my::db::pass)),
  }

-Alex

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Alex Elman