Puppetserver can't use eyaml

[Hadmut Danisch]

Hi,

when using puppetserver under Ubuntu 23.04, I can't use eyaml for encrypted hiera data, even with ubuntu-package hiera-eyaml installed. Doesn't work with gem hiera-eyaml (installed with gem command) either.

Client always aborts with

 Error: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Evaluation Error: Error while evaluating a Function Call, Function Load Error for function 'eyaml_lookup_key': Lookup using eyaml lookup_key function is only supported when the hiera_eyaml library is present (file: ..., line: 69, column: 1) on node ...

which comes from

/usr/lib/ruby/vendor_ruby/puppet/functions/eyaml_lookup_key.rb

unless Puppet.features.hiera_eyaml?
    raise Puppet::DataBinding::LookupError, 'Lookup using eyaml lookup_key function is only supported when the hiera_eyaml library is present'
  end

So the reason is that Puppet.features.hiera_eyaml? is not true.

The only code to set this to true I found in
/usr/lib/ruby/vendor_ruby/puppet/feature/hiera_eyaml.rb

Puppet.features.add(:hiera_eyaml, :libs => ['hiera/backend/eyaml/parser/parser'])

which does not seem to be read by puppetserver

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: puppetserver 7.9.5-1
ProcVersionSignature: Ubuntu 5.15.0-75.82-generic 5.15.99
Uname: Linux 5.15.0-75-generic x86_64
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CloudArchitecture: x86_64
CloudBuildName: server
CloudID: lxd
CloudName: unknown
CloudPlatform: lxd
CloudSerial: 20180426.2
CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud-net)
Date: Sun Jul 2 00:33:19 2023
PackageArchitecture: all
SourcePackage: puppetserver
UpgradeStatus: Upgraded to lunar on 2023-07-01 (0 days ago)