[backport] horizon: Configure stickiness with haproxy

[matelakat]

This is the backport of crowbar/crowbar-openstack#841

[matelakat]

This seems to fail due to:

{"error":"Failed to apply the proposal to: d52-54-77-77-01-03.vm1.cloud.suse.de 
Most recent logged lines from the Chef run: 

 23:  haproxy_loadbalancer \"horizon\" do
  24:    address \"0.0.0.0\"
  25:    port 80
  26:    use_ssl false
  27:    servers CrowbarPacemakerHelper.haproxy_servers_for_service(node, \"horizon\", \"horizon-server\", \"plain\")
  28\u003e\u003e   stick stick_options
  29:    action :nothing
  30:  end.run_action(:create)
  31:  
  32:  if node[:horizon][:apache][:ssl]
  33:    stick_options = { expire: \"#{node[:horizon][:session_timeout]}m\" }
  34:  
  35:    haproxy_loadbalancer \"horizon-ssl\" do
  36:      address \"0.0.0.0\"
  37:      port 443

 [2017-06-29T15:20:02+00:00] ERROR: Running exception handlers
 [2017-06-29T15:20:02+00:00] ERROR: Report handler Chef::Handler::ErrorReport raised #\u003cEncoding::UndefinedConversionError: \"\\xCD\" from ASCII-8BIT to UTF-8\u003e
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/resource.rb:530:in `encode'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/resource.rb:530:in `to_json'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/resource.rb:530:in `to_json'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/2.1.0/json/common.rb:285:in `generate'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/2.1.0/json/common.rb:285:in `pretty_generate'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/json_compat.rb:107:in `to_json_pretty'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/handler/error_report.rb:27:in `report'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/handler.rb:226:in `run_report_unsafe'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/handler.rb:214:in `run_report_safely'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/handler.rb:118:in `block in run_exception_handlers'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/handler.rb:117:in `each'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/handler.rb:117:in `run_exception_handlers'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/handler.rb:127:in `block in \u003cclass:Handler\u003e'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/client.rb:119:in `call'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/client.rb:119:in `block in run_failed'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/client.rb:118:in `each'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/client.rb:118:in `run_failed'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/client.rb:446:in `rescue in do_run'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/client.rb:455:in `do_run'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/client.rb:184:in `run'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/application.rb:133:in `run_chef_client'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/application/client.rb:306:in `block in run_application'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/application/client.rb:294:in `loop'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/application/client.rb:294:in `run_application'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/lib/chef/application.rb:65:in `run'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/lib64/ruby/gems/2.1.0/gems/chef-10.32.2/bin/chef-client:26:in `\u003ctop (required)\u003e'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/bin/chef-client:23:in `load'
 [2017-06-29T15:20:02+00:00] ERROR: /usr/bin/chef-client:23:in `\u003cmain\u003e'
 [2017-06-29T15:20:02+00:00] ERROR: Exception handlers complete
 [2017-06-29T15:20:02+00:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
 [2017-06-29T15:20:02+00:00] FATAL: NoMethodError: undefined method `stick' for Chef::Resource::HaproxyLoadbalancer

[matelakat]

That's because we first need to merge the ha change.