diff --git a/playbooks/roles/ansible-cron/README.rst b/playbooks/roles/ansible-cron/README.rst
index bd8563dc32..75bf33379d 100644
--- a/playbooks/roles/ansible-cron/README.rst
+++ b/playbooks/roles/ansible-cron/README.rst
@@ -19,3 +19,10 @@ bridge.o.o and all hosts.
 
    .. zuul:rolevar:: weekday
       :default: *
+
+   .. zuul:rolevar:: ansible_cron_disable_job
+      :default: false
+
+      Disabled installed cron job.  This is only useful for CI jobs
+      testing bridge.o.o so that the test host does not randomly run
+      the script during CI tests that fall during the interval.
diff --git a/playbooks/roles/ansible-cron/defaults/main.yaml b/playbooks/roles/ansible-cron/defaults/main.yaml
index 4d21c72b6c..b29615f20a 100644
--- a/playbooks/roles/ansible-cron/defaults/main.yaml
+++ b/playbooks/roles/ansible-cron/defaults/main.yaml
@@ -5,4 +5,4 @@ update_cron_interval:
   month: '*'
   weekday: '*'
 # Flag that can be set in tests to ensure cron is not run
-ansible_cron_install_cron: true
+ansible_cron_disable_job: false
diff --git a/playbooks/roles/ansible-cron/tasks/main.yaml b/playbooks/roles/ansible-cron/tasks/main.yaml
index 9e1735c49b..7cddd9f547 100644
--- a/playbooks/roles/ansible-cron/tasks/main.yaml
+++ b/playbooks/roles/ansible-cron/tasks/main.yaml
@@ -13,6 +13,7 @@
   cron:
     name: run_all.sh
     state: present
+    disabled:  "{{ ansible_cron_disable_job }}"
     # Note /var/run is ephemeral; so after a reboot we need to
     # ensure the lockfile dir is there before we run...
     job: 'mkdir -p /var/run/ansible; flock -n /var/run/ansible/run_all.lock bash /opt/system-config/run_all.sh -c >> /var/log/ansible/run_all_cron.log 2>&1'
@@ -21,7 +22,6 @@
     day: "{{ update_cron_interval.day }}"
     month: "{{ update_cron_interval.month }}"
     weekday: "{{ update_cron_interval.weekday }}"
-  when: ansible_cron_install_cron
 
 - name: Setup log rotation
   include_role:
diff --git a/playbooks/roles/cloud-launcher-cron/README.rst b/playbooks/roles/cloud-launcher-cron/README.rst
index 488efed0e6..9e1fe67919 100644
--- a/playbooks/roles/cloud-launcher-cron/README.rst
+++ b/playbooks/roles/cloud-launcher-cron/README.rst
@@ -24,3 +24,10 @@ with.
 
    .. zuul:rolevar:: weekday
       :default: *
+
+   .. zuul:rolevar:: cloud_launcher_disable_job
+      :default: false
+
+      Prevent installation of cron job.  This is only useful for CI
+      jobs testing bridge.o.o so that the test host does not randomly
+      run the script during CI tests that fall during the interval.
diff --git a/playbooks/roles/cloud-launcher-cron/defaults/main.yaml b/playbooks/roles/cloud-launcher-cron/defaults/main.yaml
index 344859ba46..a07fb19855 100644
--- a/playbooks/roles/cloud-launcher-cron/defaults/main.yaml
+++ b/playbooks/roles/cloud-launcher-cron/defaults/main.yaml
@@ -4,3 +4,4 @@ cloud_launcher_cron_interval:
   day: '*'
   month: '*'
   weekday: '*'
+cloud_launcher_disable_job: false
\ No newline at end of file
diff --git a/playbooks/roles/cloud-launcher-cron/tasks/main.yaml b/playbooks/roles/cloud-launcher-cron/tasks/main.yaml
index a0edcc0544..fe2e885393 100644
--- a/playbooks/roles/cloud-launcher-cron/tasks/main.yaml
+++ b/playbooks/roles/cloud-launcher-cron/tasks/main.yaml
@@ -7,6 +7,7 @@
   cron:
     name: run_cloud_launcher.sh
     state: present
+    disabled: "{{ cloud_launcher_disable_job }}"
     job: '/usr/bin/flock -n /var/run/ansible/run_cloud_launcher.lock /bin/bash /opt/system-config/run_cloud_launcher.sh -c >> /var/log/ansible/run_cloud_launcher_cron.log 2>&1'
     minute: "{{ cloud_launcher_cron_interval.minute }}"
     hour: "{{ cloud_launcher_cron_interval.hour }}"
diff --git a/playbooks/zuul/run-base.yaml b/playbooks/zuul/run-base.yaml
index 5964e93f8d..214eed680c 100644
--- a/playbooks/zuul/run-base.yaml
+++ b/playbooks/zuul/run-base.yaml
@@ -1,7 +1,8 @@
 - import_playbook: ../bridge.yaml
   vars:
     root_rsa_key: "{{ lookup('file', zuul.executor.work_root + '/' + zuul.build + '_id_rsa') }}"
-    ansible_cron_install_cron: false
+    ansible_cron_disable_job: true
+    cloud_launcher_disable_job: true
 
 - hosts: bridge.openstack.org
   become: true
diff --git a/playbooks/zuul/templates/host_vars/bridge.openstack.org.yaml.j2 b/playbooks/zuul/templates/host_vars/bridge.openstack.org.yaml.j2
index b14ce0022e..20d7e28c5d 100644
--- a/playbooks/zuul/templates/host_vars/bridge.openstack.org.yaml.j2
+++ b/playbooks/zuul/templates/host_vars/bridge.openstack.org.yaml.j2
@@ -65,4 +65,6 @@ clouds:
   openstackzuul_fortnebula_password: password
   openstackzuul_fortnebula_project_name: project
 gitea_kube_key: Z2l0ZWFfazhzX2tleQ==
-ansible_cron_install_cron: false
+
+ansible_cron_disable_job: true
+cloud_launcher_disable_job: true
diff --git a/testinfra/test_bridge.py b/testinfra/test_bridge.py
index b36a6247bd..0a8d4c7484 100644
--- a/testinfra/test_bridge.py
+++ b/testinfra/test_bridge.py
@@ -45,6 +45,12 @@ def test_openstacksdk_config(host):
     assert f.mode == 0o640
 
 
+def test_ansible_run_all_cron(host):
+    with host.sudo():
+        crontab = host.check_output('crontab -l')
+        assert 'run_all.sh' in crontab
+
+
 def test_cloud_launcher_cron(host):
     with host.sudo():
         crontab = host.check_output('crontab -l')