using Centos 7.2.1511 with Foreman 1.12.0-0.1 RC2 as a single node test box for foreman 1.12 pre-release testing with Puppet 4.

The installer is ran with the following options

foreman-installer --enable-foreman-plugin-ansible --enable-foreman-plugin-dhcp-browser --enable-foreman-plugin-docker --enable-foreman-plugin-hooks --enable-foreman-plugin-puppetdb --enable-foreman-plugin-remote-execution --enable-foreman-plugin-salt --enable-foreman-plugin-setup --enable-foreman-plugin-tasks --enable-foreman-plugin-templates --enable-foreman-compute-ec2 --enable-foreman-compute-libvirt --enable-foreman-compute-openstack --enable-foreman-compute-ovirt --enable-foreman-compute-rackspace --enable-foreman-compute-vmware --enable-foreman-proxy-plugin-discovery --enable-foreman-proxy-plugin-dynflow --enable-foreman-proxy-plugin-pulp --enable-foreman-proxy-plugin-remote-execution-ssh --enable-foreman-proxy-plugin-salt --foreman-configure-epel-repo --foreman-configure-scl-repo --foreman-db-database=test_foreman --foreman-db-host=localhost --foreman-db-manage --foreman-db-password={REMOVED] --foreman-db-username=[REMOVED] --foreman-db-type=MySQL

The aim to validate puppet 4 functionality and external compute resource functionality specifically EC2 and openstack.

After a successful install I login to the interface as the admin user with the installer generated password and proceed to change the admin user password to something simple and easy to remember "letmein" as this is a test system.

Upon changing the password the foreman gui errors

[quote]
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at [no address given] to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
[/quote]

The production.log does not capture this event as it does not appear to get that far as the problem appears to be within the apache processing of the password change.

The error log (not foreman_error log or foreman-ssl_error log) captures the event as

App 3155 stderr: [ 2016-06-26 18:45:46.1958 3434/0x000000073b63c8(Worker 1) utils.rb:84 ]: *** Exception EOFError in Rack application object (bad content body) (process 3434, thread 0x000000073b63c8(Worker 1)):
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/multipart/parser.rb:147:in `get_current_head_and_filename_and_content_type_and_name_and_body'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/multipart/parser.rb:63:in `block in parse'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/multipart/parser.rb:56:in `loop'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/multipart/parser.rb:56:in `parse'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/multipart.rb:25:in `parse_multipart'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/request.rb:373:in `parse_multipart'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/request.rb:207:in `POST'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/methodoverride.rb:39:in `method_override_param'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/methodoverride.rb:27:in `method_override'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/methodoverride.rb:15:in `call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/runtime.rb:18:in `call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/activesupport-4.2.5.1/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/actionpack-4.2.5.1/lib/action_dispatch/middleware/static.rb:116:in `call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/sendfile.rb:113:in `call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/railties-4.2.5.1/lib/rails/engine.rb:518:in `call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/railties-4.2.5.1/lib/rails/application.rb:165:in `call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/railties-4.2.5.1/lib/rails/railtie.rb:194:in `public_send'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/railties-4.2.5.1/lib/rails/railtie.rb:194:in `method_missing'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/urlmap.rb:66:in `block in call'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/urlmap.rb:50:in `each'
App 3155 stderr: from /opt/rh/sclo-ror42/root/usr/share/gems/gems/rack-1.6.2/lib/rack/urlmap.rb:50:in `call'
App 3155 stderr: from /usr/share/passenger/phusion_passenger/rack/thread_handler_extension.rb:74:in `process_request'
App 3155 stderr: from /usr/share/passenger/phusion_passenger/request_handler/thread_handler.rb:141:in `accept_and_process_next_request'
App 3155 stderr: from /usr/share/passenger/phusion_passenger/request_handler/thread_handler.rb:109:in `main_loop'
App 3155 stderr: from /usr/share/passenger/phusion_passenger/request_handler.rb:455:in `block (3 levels) in start_threads'
App 3155 stderr: from /opt/theforeman/tfm/root/usr/share/gems/gems/logging-1.8.2/lib/logging/diagnostic_context.rb:323:in `call'
App 3155 stderr: from /opt/theforeman/tfm/root/usr/share/gems/gems/logging-1.8.2/lib/logging/diagnostic_context.rb:323:in `block in create_with_logging_context'

The ruby dependencies where installed by the foreman installer from SCL

Foreman installed the following ruby gems

tfm-rubygem-highline-1.6.21-5.el7.noarch
tfm-rubygem-fog-libvirt-0.2.0-1.el7.noarch
tfm-rubygem-fog-vsphere-0.7.0-1.el7.noarch
tfm-rubygem-colorize-0.7.7-4.el7.noarch
tfm-rubygem-passenger-4.0.18-9.11.el7.x86_64
tfm-rubygem-puppetdb_foreman-1.0.3-1.fm1_12.el7.noarch
tfm-rubygem-deep_cloneable-2.1.1-4.el7.noarch
tfm-rubygem-facter-2.4.0-3.el7.x86_64
tfm-rubygem-hammer_cli-0.7.0-1.el7.noarch
tfm-rubygem-audited-activerecord-4.2.0-2.el7.noarch
tfm-rubygem-fog-aws-0.9.1-1.el7.noarch
tfm-rubygem-fog-rackspace-0.1.1-1.el7.noarch
tfm-rubygem-netrc-0.7.7-7.el7.noarch
tfm-rubygem-ancestry-2.0.0-5.el7.noarch
tfm-rubygem-dynflow-0.8.11-1.fm1_12.el7.noarch
tfm-rubygem-validates_lengths_from_database-0.5.0-3.el7.noarch
tfm-rubygem-foreman_dhcp_browser-0.0.7-3.fm1_11.el7.noarch
tfm-rubygem-mysql2-0.3.19-5.el7.x86_64
tfm-rubygem-rails-i18n-4.0.8-3.el7.noarch
tfm-runtime-3.1-3.el7.x86_64
tfm-rubygem-logging-1.8.2-4.el7.noarch
tfm-rubygem-unf_ext-0.0.6-6.el7.x86_64
tfm-rubygem-rack-jsonp-1.3.1-5.el7.noarch
tfm-rubygem-domain_name-0.5.20160310-1.el7.noarch
tfm-rubygem-audited-4.2.0-1.el7.noarch
tfm-rubygem-will_paginate-3.1.0-2.el7.noarch
tfm-rubygem-net-ldap-0.14.0-1.el7.noarch
tfm-rubygem-safemode-1.2.4-2.el7.noarch
tfm-rubygem-fast_gettext-1.1.0-1.el7.noarch
tfm-rubygem-friendly_id-5.1.0-3.el7.noarch
tfm-rubygem-responders-2.1.1-1.el7.noarch
tfm-rubygem-clamp-1.0.0-5.el7.noarch
tfm-rubygem-fog-json-1.0.2-4.el7.noarch
tfm-rubygem-fog-openstack-0.1.2-1.el7.noarch
tfm-rubygem-trollop-2.0-5.el7.noarch
tfm-rubygem-fog-google-0.1.0-2.el7.noarch
tfm-rubygem-deface-1.0.2-3.el7.noarch
tfm-rubygem-daemons-1.2.3-3.el7.noarch
tfm-rubygem-apipie-params-0.0.4-4.el7.noarch
tfm-rubygem-docker-api-1.28.0-2.el7.noarch
tfm-rubygem-diffy-3.0.1-3.el7.noarch
tfm-rubygem-passenger-native-4.0.18-9.11.el7.x86_64
tfm-rubygem-foreman_ansible-0.3-1.fm1_11.el7.noarch
tfm-rubygem-foreman_docker-2.1.1-1.fm1_12.el7.noarch
tfm-rubygem-foreman_salt-5.0.1-1.fm1_12.el7.noarch
tfm-rubygem-rabl-0.12.0-2.el7.noarch
tfm-rubygem-little-plugger-1.1.3-21.el7.noarch
tfm-rubygem-net-ssh-3.0.2-2.el7.noarch
tfm-rubygem-formatador-0.2.1-9.el7.noarch
tfm-rubygem-bundler_ext-0.3.0-9.el7.noarch
tfm-rubygem-secure_headers-1.4.1-4.el7.noarch
tfm-rubygem-unf-0.1.3-5.el7.noarch
tfm-rubygem-fog-core-1.36.0-2.el7.noarch
tfm-rubygem-protected_attributes-1.1.3-3.el7.noarch
tfm-rubygem-activerecord-session_store-0.1.2-2.el7.noarch
tfm-rubygem-apipie-bindings-0.0.16-2.el7.noarch
tfm-rubygem-awesome_print-1.0.2-13.el7.noarch
tfm-rubygem-fog-xml-0.1.2-4.el7.noarch
tfm-rubygem-ruby-libvirt-0.5.2-4.el7.x86_64
tfm-rubygem-rbvmomi-1.8.2-4.el7.noarch
tfm-rubygem-fog-1.38.0-1.el7.noarch
tfm-rubygem-algebrick-0.7.3-4.el7.noarch
tfm-rubygem-hammer_cli_foreman-0.7.0-1.el7.noarch
tfm-rubygem-foreman-tasks-0.7.18-1.fm1_12.el7.noarch
tfm-rubygem-foreman_hooks-0.3.11-1.fm1_12.el7.noarch
tfm-rubygem-foreman_setup-3.1.1-1.fm1_12.el7.noarch
tfm-rubygem-scoped_search-3.2.2-4.el7.noarch
tfm-rubygem-locale-2.0.9-11.el7.noarch
tfm-rubygem-excon-0.49.0-3.el7.noarch
tfm-rubygem-ipaddress-0.8.0-9.el7.noarch
tfm-rubygem-fog-xenserver-0.2.3-1.el7.noarch
tfm-rubygem-sequel-4.20.0-5.el7.noarch
tfm-rubygem-concurrent-ruby-edge-0.2.0-4.fm1_12.el7.noarch
tfm-rubygem-oauth-0.4.7-8.el7.noarch
tfm-rubygem-foreman_chef-0.3.1-1.fm1_12.el7.noarch
tfm-rubygem-foreman_templates-2.1.0-1.fm1_12.el7.noarch
tfm-rubygem-rest-client-1.8.0-1.el7.noarch
tfm-rubygem-ruby_parser-3.6.3-4.el7.noarch
tfm-rubygem-http-cookie-1.0.2-1.el7.noarch
tfm-rubygem-ldap_fluff-0.4.3-1.el7.noarch
tfm-rubygem-table_print-1.5.1-6.el7.noarch
tfm-rubygem-gettext_i18n_rails-1.2.1-3.el7.noarch
tfm-rubygem-rbovirt-0.1.1-1.el7.noarch
tfm-rubygem-apipie-rails-0.3.6-1.el7.noarch
tfm-rubygem-parse-cron-0.1.4-2.fm1_11.el7.noarch
tfm-rubygem-wicked-1.1.0-4.el7.noarch
tfm-rubygem-git-1.2.5-7.el7.noarch
tfm-rubygem-passenger-native-libs-4.0.18-9.11.el7.x86_64
tfm-rubygem-foreman_remote_execution-0.3.2-2.fm1_12.el7.noarch
tfm-rubygem-sexp_processor-4.4.4-3.el7.noarch
tfm-rubygem-net-scp-1.1.0-6.el7.noarch
tfm-rubygem-rails-observers-0.1.2-7.el7.noarch
tfm-rubygem-ruby2ruby-2.1.3-4.el7.noarch