singletonize some role tasks that repeat a lot

roles/openshift_excluder/tasks/install.yml

@@ -1,14 +1,24 @@
 ---
-- name: Install docker excluder
-  package:
-    name: "{{ r_openshift_excluder_service_type }}-docker-excluder{{ openshift_pkg_version | default('') | oo_image_tag_to_rpm_version(include_dash=True) +  '*' }}"
-    state: "{{ r_openshift_excluder_docker_package_state }}"
-  when:
-  - r_openshift_excluder_enable_docker_excluder | bool
-
-- name: Install openshift excluder
-  package:
-    name: "{{ r_openshift_excluder_service_type }}-excluder{{ openshift_pkg_version | default('') | oo_image_tag_to_rpm_version(include_dash=True) + '*' }}"
-    state: "{{ r_openshift_excluder_package_state }}"
-  when:
-  - r_openshift_excluder_enable_openshift_excluder | bool
+
+- when:
+  - not openshift.common.is_atomic | bool
+  - r_openshift_excluder_install_ran is not defined
+
+  block:
+
+  - name: Install docker excluder
+    package:
+      name: "{{ r_openshift_excluder_service_type }}-docker-excluder{{ openshift_pkg_version | default('') | oo_image_tag_to_rpm_version(include_dash=True) +  '*' }}"
+      state: "{{ r_openshift_excluder_docker_package_state }}"
+    when:
+    - r_openshift_excluder_enable_docker_excluder | bool
+
+  - name: Install openshift excluder
+    package:
+      name: "{{ r_openshift_excluder_service_type }}-excluder{{ openshift_pkg_version | default('') | oo_image_tag_to_rpm_version(include_dash=True) + '*' }}"
+      state: "{{ r_openshift_excluder_package_state }}"
+    when:
+    - r_openshift_excluder_enable_openshift_excluder | bool
+
+  - set_fact:
+      r_openshift_excluder_install_ran: True

roles/openshift_facts/tasks/main.yml

@@ -24,12 +24,18 @@
     msg: |
       openshift-ansible requires Python 3 for {{ ansible_distribution }};
       For information on enabling Python 3 with Ansible, see https://docs.ansible.com/ansible/python_3_support.html
-  when: ansible_distribution == 'Fedora' and ansible_python['version']['major'] != 3
+  when:
+  - ansible_distribution == 'Fedora'
+  - ansible_python['version']['major'] != 3
+  - r_openshift_facts_ran is not defined
 
 - name: Validate python version
   fail:
     msg: "openshift-ansible requires Python 2 for {{ ansible_distribution }}"
-  when: ansible_distribution != 'Fedora' and ansible_python['version']['major'] != 2
+  when:
+  - ansible_distribution != 'Fedora'
+  - ansible_python['version']['major'] != 2
+  - r_openshift_facts_ran is not defined
 
 # Fail as early as possible if Atomic and old version of Docker
 - block:
@@ -48,7 +54,9 @@
       that:
       - l_atomic_docker_version.stdout | replace('"', '') | version_compare('1.12','>=')
 
-  when: l_is_atomic | bool
+  when:
+  - l_is_atomic | bool
+  - r_openshift_facts_ran is not defined
 
 - name: Load variables
   include_vars: "{{ item }}"
@@ -59,7 +67,9 @@
 - name: Ensure various deps are installed
   package: name={{ item }} state=present
   with_items: "{{ required_packages }}"
-  when: not l_is_atomic | bool
+  when:
+  - not l_is_atomic | bool
+  - r_openshift_facts_ran is not defined
 
 - name: Ensure various deps for running system containers are installed
   package: name={{ item }} state=present
@@ -67,6 +77,7 @@
   when:
   - not l_is_atomic | bool
   - l_any_system_container | bool
+  - r_openshift_facts_ran is not defined
 
 - name: Gather Cluster facts and set is_containerized if needed
   openshift_facts:
@@ -99,3 +110,7 @@
 - name: Set repoquery command
   set_fact:
     repoquery_cmd: "{{ 'dnf repoquery --latest-limit 1 -d 0' if ansible_pkg_mgr == 'dnf' else 'repoquery --plugins' }}"
+
+- name: Register that this already ran
+  set_fact:
+    r_openshift_facts_ran: True

roles/openshift_repos/tasks/main.yaml

@@ -4,7 +4,8 @@
     path: /run/ostree-booted
   register: ostree_booted
 
-- block:
+- when: not ostree_booted.stat.exists
+  block:
   - name: Ensure libselinux-python is installed
     package: name=libselinux-python state=present
 
@@ -24,41 +25,40 @@
     - openshift_additional_repos | length == 0
     notify: refresh cache
 
-  # Note: OpenShift repositories under CentOS may be shipped through the
-  # "centos-release-openshift-origin" package which configures the repository.
-  # This task matches the file names provided by the package so that they are
-  # not installed twice in different files and remains idempotent.
-  - name: Configure origin gpg keys if needed
-    copy:
-      src: "{{ item.src }}"
-      dest: "{{ item.dest }}"
-    with_items:
-    - src: origin/gpg_keys/openshift-ansible-CentOS-SIG-PaaS
-      dest: /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-PaaS
-    - src: origin/repos/openshift-ansible-centos-paas-sig.repo
-      dest: /etc/yum.repos.d/CentOS-OpenShift-Origin.repo
-    notify: refresh cache
-    when:
-    - ansible_os_family == "RedHat"
-    - ansible_distribution != "Fedora"
-    - openshift_deployment_type == 'origin'
-    - openshift_enable_origin_repo | default(true) | bool
-
   # Singleton block
-  - when: r_osr_first_run | default(true)
+  - when: r_openshift_repos_has_run is not defined
     block:
+
+    # Note: OpenShift repositories under CentOS may be shipped through the
+    # "centos-release-openshift-origin" package which configures the repository.
+    # This task matches the file names provided by the package so that they are
+    # not installed twice in different files and remains idempotent.
+    - name: Configure origin gpg keys if needed
+      copy:
+        src: "{{ item.src }}"
+        dest: "{{ item.dest }}"
+      with_items:
+      - src: origin/gpg_keys/openshift-ansible-CentOS-SIG-PaaS
+        dest: /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-PaaS
+      - src: origin/repos/openshift-ansible-centos-paas-sig.repo
+        dest: /etc/yum.repos.d/CentOS-OpenShift-Origin.repo
+      notify: refresh cache
+      when:
+      - ansible_os_family == "RedHat"
+      - ansible_distribution != "Fedora"
+      - openshift_deployment_type == 'origin'
+      - openshift_enable_origin_repo | default(true) | bool
+
     - name: Ensure clean repo cache in the event repos have been changed manually
       debug:
         msg: "First run of openshift_repos"
       changed_when: true
       notify: refresh cache
 
-    - name: Set fact r_osr_first_run false
+    - name: Record that openshift_repos already ran
       set_fact:
-        r_osr_first_run: false
+        r_openshift_repos_has_run: True
 
   # Force running ALL handlers now, because we expect repo cache to be cleared
   # if changes have been made.
   - meta: flush_handlers
-
-  when: not ostree_booted.stat.exists