diff --git a/playbooks/roles/bifrost-ironic-install/defaults/main.yml b/playbooks/roles/bifrost-ironic-install/defaults/main.yml
index 032c5622e..c978e895c 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/main.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/main.yml
@@ -23,6 +23,8 @@ transform_boot_image: false
 # virtual machines for the hardware instead of real hardware.
 testing: false
 ci_testing: false
+# Use Rabbit MQ as a message bus.
+use_rabbitmq: true
 
 # set to true to skip installing ironic dependencies
 skip_package_install: False
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_family.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_family.yml
index e8c87ccdc..8b3e5190b 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_family.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_family.yml
@@ -10,7 +10,6 @@ mysql_service_name: mysql
 tftp_service_name: tftpd-hpa
 required_packages:
   - mysql-server
-  - rabbitmq-server
   - python-dev
   - python-mysqldb
   - python-configparser
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_jessie.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_jessie.yml
index ef512aeb1..d4af668b2 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_jessie.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Debian_jessie.yml
@@ -8,7 +8,6 @@ nginx_user: www-data
 mysql_service_name: mysql
 required_packages:
   - mysql-server
-  - rabbitmq-server
   - python-dev
   - python-mysqldb
   - python-configparser
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_25.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_25.yml
index 4db3b9cf4..af362c314 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_25.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_25.yml
@@ -11,7 +11,6 @@ tftp_service_name: tftp
 required_packages:
   - mariadb-server
   - dnsmasq
-  - rabbitmq-server
   - python-devel
   - MySQL-python
   - libselinux-python
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_26.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_26.yml
index f0d3d5190..892c05955 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_26.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_26.yml
@@ -11,7 +11,6 @@ tftp_service_name: tftp
 required_packages:
   - mariadb-server
   - dnsmasq
-  - rabbitmq-server
   - python-devel
   - MySQL-python
   - libselinux-python
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_27.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_27.yml
index f0d3d5190..892c05955 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_27.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Fedora_27.yml
@@ -11,7 +11,6 @@ tftp_service_name: tftp
 required_packages:
   - mariadb-server
   - dnsmasq
-  - rabbitmq-server
   - python-devel
   - MySQL-python
   - libselinux-python
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_RedHat_family.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_RedHat_family.yml
index a7f194096..529b9ac31 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_RedHat_family.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_RedHat_family.yml
@@ -11,7 +11,6 @@ tftp_service_name: tftp
 required_packages:
   - mariadb-server
   - dnsmasq
-  - rabbitmq-server
   - python-devel
   - MySQL-python
   - python-iniparse
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Suse_family.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Suse_family.yml
index cf1549059..19fc66a2f 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Suse_family.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Suse_family.yml
@@ -17,7 +17,6 @@ required_packages:
   - python-selinux
   - mariadb-server
   - dnsmasq
-  - rabbitmq-server
   - python-devel
   - python-MySQL-python
   - python-iniparse
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Ubuntu_16.04.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Ubuntu_16.04.yml
index 2dafa300c..e0e82a68f 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Ubuntu_16.04.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_Ubuntu_16.04.yml
@@ -4,7 +4,6 @@ init_dest_dir: /lib/systemd/system/
 init_ext: .service
 required_packages:
   - mysql-server
-  - rabbitmq-server
   - python-dev
   - python-mysqldb
   - python-configparser
diff --git a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_openSUSE_Leap_15.0.yml b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_openSUSE_Leap_15.0.yml
index f726b7266..845de1286 100644
--- a/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_openSUSE_Leap_15.0.yml
+++ b/playbooks/roles/bifrost-ironic-install/defaults/required_defaults_openSUSE_Leap_15.0.yml
@@ -17,7 +17,6 @@ required_packages:
   - python-selinux
   - mariadb-server
   - dnsmasq
-  - rabbitmq-server
   - python-devel
   - python-iniparse
   - libffi-devel
diff --git a/playbooks/roles/bifrost-ironic-install/tasks/bootstrap.yml b/playbooks/roles/bifrost-ironic-install/tasks/bootstrap.yml
index 7fae68ebb..25944c1e0 100644
--- a/playbooks/roles/bifrost-ironic-install/tasks/bootstrap.yml
+++ b/playbooks/roles/bifrost-ironic-install/tasks/bootstrap.yml
@@ -42,43 +42,6 @@
   service: name={{ mysql_service_name }} state=started enabled=yes
   when: ironic.database.host == 'localhost'
 
-# NOTE(hwoarang): The erlang SUSE package forces epmd to listen on localhost
-# address which breaks rabbitmq-server when listening on a different address.
-# https://build.opensuse.org/package/view_file/devel:languages:erlang:Factory/erlang/README.SUSE?expand=1
-- name: "Make epmd listen to all addresses on SUSE"
-  block:
-    - blockinfile:
-        dest: "/etc/systemd/system/epmd.socket.d/port.conf"
-        content: |
-          [Socket]
-          ListenStream=
-          ListenStream=0.0.0.0:4369
-        create: yes
-        marker: "# {mark} ANSIBLE MANAGED BLOCK"
-
-    - systemd: daemon_reload=yes
-
-    - service: name={{ item }} state=stopped enabled=no
-      with_items:
-        - epmd.socket
-        - epmd
-
-  when: ansible_os_family == 'Suse'
-- name: "Start rabbitmq-server"
-  service: name=rabbitmq-server state=started enabled=yes
-
-# NOTE(cinerama): on some systems, rabbit may not be ready when we want to
-# make changes to users if we don't wait first
-# TODO(TheJulia): This needs to be changed to a variable, however
-# should update this playbook all at once with new variable structures.
-- name: "Wait for rabbitmq"
-  wait_for: port=5672 delay=5
-
-- name: "Ensure guest user is removed from rabbitmq"
-  rabbitmq_user:
-    user: "guest"
-    state: absent
-    force: yes
 - name: "Create ironic user in RabbitMQ"
   rabbitmq_user:
     user: "ironic"
@@ -89,6 +52,7 @@
     write_priv: ".*"
     read_priv: ".*"
   no_log: true
+  when: use_rabbitmq
 
 - name: "Set mysql_username if environment variable mysql_user is set"
   set_fact:
diff --git a/playbooks/roles/bifrost-ironic-install/tasks/main.yml b/playbooks/roles/bifrost-ironic-install/tasks/main.yml
index d43b098d1..72ee4199e 100644
--- a/playbooks/roles/bifrost-ironic-install/tasks/main.yml
+++ b/playbooks/roles/bifrost-ironic-install/tasks/main.yml
@@ -51,6 +51,11 @@
     - "../defaults/required_defaults_{{ ansible_distribution | regex_replace(' ', '_') }}_{{ ansible_distribution_version }}.yml"
     - "../defaults/dummy-defaults.yml"
 
+- name: "Install RabbitMQ if required"
+  import_role:
+    name: bifrost-rabbitmq
+  when: use_rabbitmq
+
 - name: "Install Ironic deps"
   include: install.yml
   when: skip_package_install | bool != True
diff --git a/playbooks/roles/bifrost-ironic-install/tasks/start.yml b/playbooks/roles/bifrost-ironic-install/tasks/start.yml
index c9e463cc3..2bf19a458 100644
--- a/playbooks/roles/bifrost-ironic-install/tasks/start.yml
+++ b/playbooks/roles/bifrost-ironic-install/tasks/start.yml
@@ -24,8 +24,10 @@
 - name: "Start database service"
   service: name={{ mysql_service_name }} state=started enabled=yes
 
-- name: "Start rabbitmq-server"
-  service: name=rabbitmq-server state=started enabled=yes
+- import_role:
+    name: bifrost-rabbitmq
+    tasks_from: start
+  when: use_rabbitmq
 
 - name: "start ironic-inspector"
   include: inspector_start.yml
diff --git a/playbooks/roles/bifrost-ironic-install/templates/ironic-inspector.conf.j2 b/playbooks/roles/bifrost-ironic-install/templates/ironic-inspector.conf.j2
index f2e406363..425a70a72 100644
--- a/playbooks/roles/bifrost-ironic-install/templates/ironic-inspector.conf.j2
+++ b/playbooks/roles/bifrost-ironic-install/templates/ironic-inspector.conf.j2
@@ -15,7 +15,11 @@ debug = {{ inspector_debug | bool }}
 log_dir = {{ inspector_log_dir }}
 {% endif %}
 
+{% if use_rabbitmq is defined and use_rabbitmq | bool == true %}
 transport_url = rabbit://ironic:{{ironic_db_password }}@{{ message_queue_host | default('127.0.0.1') }}:{{ message_queue_port | default('5672') }}/{{ rabbit_virtual_host | default('') }}
+{% else %}
+transport_url = fake://
+{% endif %}
 
 [database]
 connection=mysql+pymysql://{{ ironic_inspector.database.username }}:{{ ironic_inspector.database.password }}@{{ ironic_inspector.database.host }}/{{ ironic_inspector.database.name }}?charset=utf8
diff --git a/playbooks/roles/bifrost-ironic-install/templates/ironic.conf.j2 b/playbooks/roles/bifrost-ironic-install/templates/ironic.conf.j2
index ae8a664bc..28f7782f5 100644
--- a/playbooks/roles/bifrost-ironic-install/templates/ironic.conf.j2
+++ b/playbooks/roles/bifrost-ironic-install/templates/ironic.conf.j2
@@ -22,7 +22,11 @@ enabled_deploy_interfaces = {{ enabled_deploy_interfaces }}
 
 enabled_hardware_types = {{ enabled_hardware_types }}
 
+{% if use_rabbitmq is defined and use_rabbitmq | bool == true %}
 transport_url = rabbit://ironic:{{ironic_db_password }}@{{ message_queue_host | default('127.0.0.1') }}:{{ message_queue_port | default('5672') }}/{{ rabbit_virtual_host | default('') }}
+{% else %}
+rpc_transport = json-rpc
+{% endif %}
 
 {% if enable_keystone is defined and enable_keystone | bool == true %}
 auth_strategy = keystone
@@ -119,3 +123,16 @@ region_name = {{ keystone.bootstrap.region_name | default('RegionOne')}}
 auth_type = none
 {% endif %}
 endpoint_override = http://{{ hostvars[inventory_hostname]['ansible_' + ans_network_interface]['ipv4']['address'] }}:6385
+
+[json_rpc]
+{% if enable_keystone is defined and enable_keystone | bool == true %}
+auth_url = {{ ironic.service_catalog.auth_url }}
+auth_type = password
+project_name = {{ ironic.service_catalog.project_name }}
+username = {{ ironic.service_catalog.username }}
+password = {{ ironic.service_catalog.password }}
+user_domain_id = default
+project_domain_id = default
+{% else %}
+auth_type = none
+{% endif %}
diff --git a/playbooks/roles/bifrost-keystone-install/README.md b/playbooks/roles/bifrost-keystone-install/README.md
index efb4a3838..bec702968 100644
--- a/playbooks/roles/bifrost-keystone-install/README.md
+++ b/playbooks/roles/bifrost-keystone-install/README.md
@@ -3,7 +3,7 @@ bifrost-keystone-install
 
 This role installs keystone for a bifrost/stand-alone ironic deployment
 with all required substrate to allow for keystone configuration,
-including MySQL, RabbitMQ, dnsmasq, and nginx.
+including MySQL, dnsmasq, and nginx.
 
 Requirements
 ------------
diff --git a/playbooks/roles/bifrost-keystone-install/defaults/main.yml b/playbooks/roles/bifrost-keystone-install/defaults/main.yml
index 7a38fd4d8..e53d5db9d 100644
--- a/playbooks/roles/bifrost-keystone-install/defaults/main.yml
+++ b/playbooks/roles/bifrost-keystone-install/defaults/main.yml
@@ -6,7 +6,7 @@ keystone_git_folder: /opt/stack/keystone
 
 # set to true to skip installing ironic dependencies
 skip_package_install: False
-# set to true to skip generation of configs, ironic db and rabbitmq configuration
+# set to true to skip generation of configs and ironic db configuration
 skip_bootstrap: False
 # set to true to skip starting ironic services and dependencies
 skip_start: False
diff --git a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_family.yml b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_family.yml
index a53386af7..c2ee4d368 100644
--- a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_family.yml
+++ b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_family.yml
@@ -6,7 +6,6 @@ nginx_user: www-data
 mysql_service_name: mysql
 required_packages:
   - mysql-server
-  - rabbitmq-server
   - python-dev
   - python-mysqldb
   - python-configparser
diff --git a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_jessie.yml b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_jessie.yml
index aa172dcda..1c3f8328e 100644
--- a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_jessie.yml
+++ b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Debian_jessie.yml
@@ -6,7 +6,6 @@ nginx_user: www-data
 mysql_service_name: mysql
 required_packages:
   - mysql-server
-  - rabbitmq-server
   - python-dev
   - python-mysqldb
   - python-configparser
diff --git a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_RedHat_family.yml b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_RedHat_family.yml
index 01d8e5e03..063d160a1 100644
--- a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_RedHat_family.yml
+++ b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_RedHat_family.yml
@@ -11,7 +11,6 @@ mysql_service_name: mariadb
 tftp_service_name: tftp
 required_packages:
   - mariadb-server
-  - rabbitmq-server
   - python-devel
   - MySQL-python
   - python-iniparse
diff --git a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Suse_family.yml b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Suse_family.yml
index 5b64f51ba..93b44eacf 100644
--- a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Suse_family.yml
+++ b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Suse_family.yml
@@ -6,7 +6,6 @@ mysql_service_name: mysql
 required_packages:
   - python-selinux
   - mariadb
-  - rabbitmq-server
   - python-devel
   - python-MySQL-python
   - python-iniparse
diff --git a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Ubuntu_16.04.yml b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Ubuntu_16.04.yml
index 7ae226438..c758fcb79 100644
--- a/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Ubuntu_16.04.yml
+++ b/playbooks/roles/bifrost-keystone-install/defaults/required_defaults_Ubuntu_16.04.yml
@@ -4,7 +4,6 @@ init_dest_dir: /lib/systemd/system/
 init_ext: .service
 required_packages:
   - mysql-server
-  - rabbitmq-server
   - python-dev
   - python-mysqldb
   - python-configparser
diff --git a/playbooks/roles/bifrost-keystone-install/tasks/bootstrap.yml b/playbooks/roles/bifrost-keystone-install/tasks/bootstrap.yml
index 736b72189..7661d42e0 100644
--- a/playbooks/roles/bifrost-keystone-install/tasks/bootstrap.yml
+++ b/playbooks/roles/bifrost-keystone-install/tasks/bootstrap.yml
@@ -29,36 +29,11 @@
   register: keystone_install_prefix
   environment: "{{ bifrost_venv_env if enable_venv else {} }}"
 
-# NOTE(sean-k-mooney) only the RabbitMQ server and MySQL db are started
-# during bootstrapping. all other services are started in the Start phase.
+# NOTE(sean-k-mooney) only the MySQL db is started during bootstrapping.
+# all other services are started in the Start phase.
 - name: "Start database service"
   service: name={{ mysql_service_name }} state=started enabled=yes
 
-- name: "Start rabbitmq-server"
-  service: name=rabbitmq-server state=started enabled=yes
-
-# NOTE(cinerama): on some systems, rabbit may not be ready when we want to
-# make changes to users if we don't wait first
-- name: "Wait for rabbitmq"
-  wait_for: port="{{ keystone.message_queue.port | default('5672') }}" delay=5
-
-- name: "Ensure guest user is removed from rabbitmq"
-  rabbitmq_user:
-    user: "guest"
-    state: absent
-    force: yes
-
-- name: "Create keystone user in RabbitMQ"
-  rabbitmq_user:
-    user: "{{ keystone.message_queue.username }}"
-    password: "{{ keystone.message_queue.password }}"
-    force: yes
-    state: present
-    configure_priv: ".*"
-    write_priv: ".*"
-    read_priv: ".*"
-  no_log: true
-
 - name: "Set mysql_username if environment variable mysql_user is set"
   set_fact:
     mysql_username: "{{ lookup('env', 'mysql_user') }}"
diff --git a/playbooks/roles/bifrost-rabbitmq/defaults/main.yml b/playbooks/roles/bifrost-rabbitmq/defaults/main.yml
new file mode 100644
index 000000000..11016d1eb
--- /dev/null
+++ b/playbooks/roles/bifrost-rabbitmq/defaults/main.yml
@@ -0,0 +1,6 @@
+---
+skip_package_install: false
+# This seems to be the same for all supported distributions.
+rabbitmq_package: rabbitmq-server
+rabbitmq_port: 5672
+rabbitmq_service: rabbitmq-server
diff --git a/playbooks/roles/bifrost-rabbitmq/tasks/main.yml b/playbooks/roles/bifrost-rabbitmq/tasks/main.yml
new file mode 100644
index 000000000..744238940
--- /dev/null
+++ b/playbooks/roles/bifrost-rabbitmq/tasks/main.yml
@@ -0,0 +1,48 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+---
+- name: Install RabbitMQ package
+  package:
+    name: "{{ rabbitmq_package }}"
+    state: present
+  when: skip_package_install | bool != True
+
+# NOTE(hwoarang): The erlang SUSE package forces epmd to listen on localhost
+# address which breaks rabbitmq-server when listening on a different address.
+# https://build.opensuse.org/package/view_file/devel:languages:erlang:Factory/erlang/README.SUSE?expand=1
+- name: "Make epmd listen to all addresses on SUSE"
+  block:
+    - blockinfile:
+        dest: "/etc/systemd/system/epmd.socket.d/port.conf"
+        content: |
+          [Socket]
+          ListenStream=
+          ListenStream=0.0.0.0:4369
+        create: yes
+        marker: "# {mark} ANSIBLE MANAGED BLOCK"
+
+    - systemd: daemon_reload=yes
+
+    - service: name={{ item }} state=stopped enabled=no
+      with_items:
+        - epmd.socket
+        - epmd
+  when: ansible_os_family == 'Suse'
+
+- import_tasks: start.yml
+
+- name: "Ensure guest user is removed from rabbitmq"
+  rabbitmq_user:
+    user: "guest"
+    state: absent
+    force: yes
diff --git a/playbooks/roles/bifrost-rabbitmq/tasks/start.yml b/playbooks/roles/bifrost-rabbitmq/tasks/start.yml
new file mode 100644
index 000000000..57e32cac0
--- /dev/null
+++ b/playbooks/roles/bifrost-rabbitmq/tasks/start.yml
@@ -0,0 +1,27 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+---
+- name: "Start rabbitmq-server"
+  service:
+    name: "{{ rabbitmq_service }}"
+    state: started
+    enabled: yes
+
+# NOTE(cinerama): on some systems, rabbit may not be ready when we want to
+# make changes to users if we don't wait first
+# TODO(TheJulia): This needs to be changed to a variable, however
+# should update this playbook all at once with new variable structures.
+- name: "Wait for rabbitmq"
+  wait_for:
+    port: "{{ rabbitmq_port }}"
+    delay: 5
diff --git a/releasenotes/notes/json-rpc-e5ccd5a13f6d51aa.yaml b/releasenotes/notes/json-rpc-e5ccd5a13f6d51aa.yaml
new file mode 100644
index 000000000..9ede9703f
--- /dev/null
+++ b/releasenotes/notes/json-rpc-e5ccd5a13f6d51aa.yaml
@@ -0,0 +1,4 @@
+features:
+  - |
+    Adds support to disable RabbitMQ via the new ``use_rabbitmq`` variable
+    in favour of JSON RPC (in ironic) and fake transport (in ironic-inspector).