use puppetserver_gem when installing on JVM puppetserver

[danieldreier]

as-is, the autosign module is not usable on JVM puppetserver without additional code because puppetserver gems must be installed using puppetserver_gem, not the normal gem package provider.

[willtome]

This was one thing I was trying to address with #8. I finally got some time to redeploy that code from scratch on a JVM puppetserver. I believe that there is more that needs to be addressed than just the gem provider.

The gem is needed with puppetserver_gem for the generate token function to work. However, when installing the with puppetserver_gem, the validator scripts were placed in /opt/puppetlabs/server/data/puppetserver/jruby-gems/bin/autosign-validator. If this was set as the validator script for autosign in puppet.conf it would fail to run the script to validate a node.

My bandaid solution was to install the gem with both puppet_gem and puppetserver_gem. When compiling, the token is generated with the puppetserver_gem package and the validator script located /opt/puppetlabs/puppet/bin/autosign-validator uses the puppet_gem package. This seems to work but I don't love having to install the gem twice. There may not be a way around it but I thought I'd throw it out there if anyone has any feedback.

[danieldreier]

I think the approach we ought to take here is to write puppet code that installs the gem via both providers, but I'm not sure how to do that; I think there'd be a resource conflict. We could use an exec as a hack, but that feels pretty gross. Maybe less gross than having to do it manually, though.

[logicminds]

When trying to install via puppetserver_gem I get

[root@pe-xl-core-0 /]# /opt/puppetlabs/bin/puppetserver gem install autosign
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.headius.backport9.modules.Modules (file:/opt/puppetlabs/server/apps/puppetserver/puppet-server-release.jar) to field java.io.FileDescriptor.fd
WARNING: Please consider reporting this to the maintainers of com.headius.backport9.modules.Modules
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
NotImplementedError: flock unsupported or native support failed to load; see https://github.com/jruby/jruby/wiki/Native-Libraries
                   flock at org/jruby/RubyFile.java:323
             read_binary at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems.rb:890
                    open at org/jruby/RubyIO.java:1158
             read_binary at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems.rb:889
              fetch_spec at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/source.rb:150
                    spec at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/resolver/api_specification.rb:77
      add_always_install at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/resolver/installer_set.rb:79
    resolve_dependencies at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/dependency_installer.rb:480
             install_gem at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/commands/install_command.rb:201
            install_gems at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/commands/install_command.rb:262
                    each at org/jruby/RubyArray.java:1800
            install_gems at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/commands/install_command.rb:258
                 execute at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/commands/install_command.rb:165
  invoke_with_build_args at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/command.rb:313
            process_args at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/command_manager.rb:173
                     run at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/command_manager.rb:143
                     run at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/gem_runner.rb:59
                  <main> at /opt/puppetlabs/server/apps/puppetserver/puppet-server-release.jar!/META-INF/jruby.home/bin/jgem:21
                    load at org/jruby/RubyKernel.java:1022
                  <main> at /opt/puppetlabs/server/apps/puppetserver/puppet-server-release.jar!/META-INF/jruby.home/bin/gem:1
                    load at org/jruby/RubyKernel.java:1022
                  <main> at -e:1