diff --git a/defaults/main.yaml b/defaults/main.yaml
index 2395c80..7fe4605 100644
--- a/defaults/main.yaml
+++ b/defaults/main.yaml
@@ -12,6 +12,13 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 ---
+# tasks/main.yaml
+zuul_task_manager:
+  - pre
+  - install
+  - config
+  - service
+
 # tasks/config.yaml
 zuul_user_name: zuul
 zuul_user_group: zuul
diff --git a/tasks/install.yaml b/tasks/install.yaml
index 0ac0c57..19e3b65 100644
--- a/tasks/install.yaml
+++ b/tasks/install.yaml
@@ -19,6 +19,7 @@
 
 # NOTE(pabelanger): This needs to be here for now, since we need python-pip.
 - name: Ensure EPEL is enabled.
+  become: yes
   package:
     name: epel-release
     state: installed
@@ -26,6 +27,7 @@
         ansible_os_family == 'RedHat'
 
 - name: Ensure build dependencies are installed.
+  become: yes
   package:
     name: "{{ item }}"
     state: installed
@@ -37,6 +39,7 @@
 # TODO(pabelanger): Remove once https://review.openstack.org/#/c/316387/ has
 # been merged.
 - name: Install missing pip dependencies
+  become: yes
   pip:
     name: "{{ item }}"
   with_items:
diff --git a/tasks/install/git.yaml b/tasks/install/git.yaml
index f9620c7..af0cd15 100644
--- a/tasks/install/git.yaml
+++ b/tasks/install/git.yaml
@@ -13,11 +13,13 @@
 # under the License.
 ---
 - name: Git clone zuul.
+  become: yes
   git:
     dest: "{{ zuul_git_dest }}"
     repo: "{{ zuul_git_uri }}"
     version: "{{ zuul_git_version }}"
 
 - name: Pip install zuul from local git repo.
+  become: yes
   pip:
     name: "file://{{ zuul_git_dest }}"
diff --git a/tasks/install/pip.yaml b/tasks/install/pip.yaml
index d9252a5..fdf4eea 100644
--- a/tasks/install/pip.yaml
+++ b/tasks/install/pip.yaml
@@ -13,11 +13,13 @@
 # under the License.
 ---
 - name: Install zuul using pip.
+  become: yes
   pip:
     name: zuul
   when: zuul_pip_version is none
 
 - name: Install zuul using pip.
+  become: yes
   pip:
     name: zuul
     version: "{{ zuul_pip_version }}"
diff --git a/tasks/main.yaml b/tasks/main.yaml
index 429695c..cf32793 100644
--- a/tasks/main.yaml
+++ b/tasks/main.yaml
@@ -15,13 +15,7 @@
 - name: Include OS-specific variables.
   include_vars: "{{ ansible_os_family }}.yaml"
 
-- include: pre.yaml
-  become: yes
-
-- include: install.yaml
-  become: yes
-
-- include: config.yaml
-
-- include: service.yaml
-  become: yes
+- include: "{{ zuul_task }}.yaml"
+  with_items: "{{ zuul_task_manager }}"
+  loop_control:
+    loop_var: zuul_task
diff --git a/tasks/service.yaml b/tasks/service.yaml
index e5fbcfe..efbba3c 100644
--- a/tasks/service.yaml
+++ b/tasks/service.yaml
@@ -73,6 +73,7 @@
   when: zuul_file_zuul_server_service_src is not defined
 
 - name: Copy zuul service config into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_service_config_dest }}"
     group: "{{ zuul_file_zuul_service_config_group }}"
@@ -81,6 +82,7 @@
     src: "{{ zuul_file_zuul_service_config_src }}"
 
 - name: Copy zuul-launcher service into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_launcher_service_dest }}"
     group: "{{ zuul_file_zuul_launcher_service_group }}"
@@ -89,6 +91,7 @@
     src: "{{ zuul_file_zuul_launcher_service_src }}"
 
 - name: Copy zuul-merger service into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_merger_service_dest }}"
     group: "{{ zuul_file_zuul_merger_service_group }}"
@@ -97,6 +100,7 @@
     src: "{{ zuul_file_zuul_merger_service_src }}"
 
 - name: Copy zuul-server service into place.
+  become: yes
   copy:
     dest: "{{ zuul_file_zuul_server_service_dest }}"
     group: "{{ zuul_file_zuul_server_service_group }}"
@@ -105,6 +109,7 @@
     src: "{{ zuul_file_zuul_server_service_src }}"
 
 - name: Enable zuul-launcher service.
+  become: yes
   service:
     enabled: "{{ zuul_service_zuul_launcher_enabled }}"
     name: "{{ zuul_service_zuul_launcher_name }}"
@@ -113,6 +118,7 @@
   when: zuul_service_zuul_launcher_manage
 
 - name: Enable zuul-merger service.
+  become: yes
   service:
     enabled: "{{ zuul_service_zuul_merger_enabled }}"
     name: "{{ zuul_service_zuul_merger_name }}"
@@ -121,6 +127,7 @@
   when: zuul_service_zuul_merger_manage
 
 - name: Enable zuul-server service.
+  become: yes
   service:
     enabled: "{{ zuul_service_zuul_server_enabled }}"
     name: "{{ zuul_service_zuul_server_name }}"