Default hostgroup plugin question

Mike_Tupker · November 11, 2016, 4:55pm

I'm trying to get the default hostgroup plugin working, but I have a couple
questions. first being when does it process the hostgroup rules (is it only
after a host checks in)? Second I'm trying to set the hostgroup by
installed OS. right now my default-hostgroup.yaml file looks like this:

···

--- :default_hostgroup: :facts_map: "Centos7/Thin": "productname": "HP t420 Thin Client" "operatingsystem": "CentOS" "Centos7/Thin": "productname": "200-010" "operatingsystem": "CentOS" "Centos7": "operatingsystem": "CentOS"

Right now it doesn’t seem to be doing anything. It doesn’t seem to even
want to match the last condition either. Any thoughts?

Mike_Tupker · November 11, 2016, 6:09pm

I've figured out what was up. restarting foreman (per the documentation
apparently means restarting httpd. One last question though, I noticed
the group assignment when more than one fact was involved was a little
random. For example:

  &quot;productname&quot;: &quot;HP t420 Thin Client&quot;
  &quot;operatingsystem&quot;: &quot;CentOS&quot;

would sometimes get the Centos7/thin hostgroup and sometimes it would just
assign the Centos7 group. what is the correct way to declare a logical AND
with more than one fact?

Gwmngilfen · November 15, 2016, 10:18am

It's not explicitly documented, but the OR nature of the fact groups is
explicitly coded (see

github.com

theforeman/foreman_default_hostgroup/blob/develop/lib/default_hostgroup_base_host_patch.rb#L43-L52


def group_matches?(facts)
  facts.each do |fact_name, fact_regex|
    fact_regex.gsub!(%r{(\A/|/\z)}, '')
    host_fact_value = facts_hash[fact_name]
    Rails.logger.info "Fact = #{fact_name}"
    Rails.logger.info "Regex = #{fact_regex}"
    return true if Regexp.new(fact_regex).match(host_fact_value)
  end
  false
end

if you like reading Ruby). There's an open PR on this which I've been
meaning to get to for ages (
https://github.com/theforeman/foreman_default_hostgroup/pull/22) which goes
along this line - you could try it if you're feeling adventurous

Greg

···

On 11 November 2016 at 18:09, Mike Tupker wrote:

what is the correct way to declare a logical AND with more than one fact?