Add conditions to ceph roles for dependencies

This change adds several conditions to the ceph roles so that when
they're included as a dependency they're only run when required.
This will ensure we're optimizing the runtime while also making the
log output a little quieter.

Change-Id: If5a2a60ce6769164f16e92bf1d4220216507f45e
Signed-off-by: Kevin Carter <kecarter@redhat.com>

tripleo_ansible/roles/tripleo-ceph-common/tasks/main.yml

@@ -14,9 +14,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-
-# "tripleo-ceph-common" will search for and load any operating system variable file
-
 - name: set basic user fact
   set_fact:
     ansible_user: "{{ lookup('env', 'USER') }}"
@@ -29,17 +26,20 @@
   when:
     - ansible_user_dir is undefined
 
-- name: set default for calling_ansible_environment_variables
-  set_fact:
-    calling_ansible_environment_variables: []
-
-- when: ceph_ansible_inherits_calling_ansible_environment
+- name: Local environment inherit
+  when:
+    - (ceph_ansible_inherits_calling_ansible_environment | default(false)) | bool
   block:
     - name: get all ansible environment variables
       shell: "env | grep ANSIBLE_"
       register: env_shell_output
       ignore_errors: true
+      delegate_to: localhost
+      connection: local
+      run_once: true
+
     - name: set calling_ansible_environment_variables
+      run_once: true
       set_fact:
         calling_ansible_environment_variables: "{{ env_shell_output.stdout_lines }}"
       when:
@@ -47,3 +47,7 @@
         - env_shell_output.rc == 0
         - env_shell_output.stdout_lines is defined
         - (env_shell_output.stdout_lines|length) > 0
+
+- name: Set common fact
+  set_fact:
+    ceph_common_done: true

tripleo_ansible/roles/tripleo-ceph-common/vars/main.yml

@@ -0,0 +1,17 @@
+---
+# Copyright 2019 Red Hat, Inc.
+# All Rights Reserved.
+#
+# 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.
+
+calling_ansible_environment_variables: []

tripleo_ansible/roles/tripleo-ceph-fetch-dir/meta/main.yml

@@ -39,5 +39,9 @@ galaxy_info:
     - tripleo
 
 dependencies:
-  - tripleo-ceph-common
-  - tripleo-ceph-work-dir
+  - role: tripleo-ceph-common
+    when:
+      - ceph_common_done is undefined
+  - role: tripleo-ceph-work-dir
+    when:
+      - ceph_ansible_private_key_file is undefined

tripleo_ansible/roles/tripleo-ceph-fetch-dir/tasks/create.yml

@@ -87,3 +87,7 @@
       when:
         - curl_get_http_status is changed
         - curl_get_http_status.stdout == "200"
+
+- name: Set cleaned fact
+  set_fact:
+    ceph_node_cleaned: true

tripleo_ansible/roles/tripleo-ceph-run-ansible/meta/main.yml

@@ -39,7 +39,15 @@ galaxy_info:
     - tripleo
 
 dependencies:
-  - tripleo-ceph-common
-  - tripleo-ceph-work-dir
-  - tripleo-ceph-fetch-dir
-  - tripleo-ceph-uuid
+  - role: tripleo-ceph-common
+    when:
+      - ceph_common_done is undefined
+  - role: tripleo-ceph-work-dir
+    when:
+      - ceph_ansible_private_key_file is undefined
+  - role: tripleo-ceph-fetch-dir
+    when:
+      - ceph_node_cleaned is undefined
+  - role: tripleo-ceph-uuid
+    when:
+      - (nodes_uuid_list is undefined) or (nodes_data is undefined)

tripleo_ansible/roles/tripleo-ceph-uuid/meta/main.yml

@@ -39,5 +39,9 @@ galaxy_info:
     - tripleo
 
 dependencies:
-  - tripleo-ceph-common
-  - tripleo-ceph-work-dir
+  - role: tripleo-ceph-common
+    when:
+      - ceph_common_done is undefined
+  - role: tripleo-ceph-work-dir
+    when:
+      - ceph_ansible_private_key_file is undefined

tripleo_ansible/roles/tripleo-ceph-uuid/tasks/main.yml

@@ -15,4 +15,8 @@
 # under the License.
 
 - import_tasks: prepare.yml
+  when:
+    - nodes_data is undefined
 - import_tasks: gather.yml
+  when:
+    - nodes_uuid_list is undefined

tripleo_ansible/roles/tripleo-ceph-work-dir/meta/main.yml

@@ -39,4 +39,6 @@ galaxy_info:
     - tripleo
 
 dependencies:
-  - tripleo-ceph-common
+  - role: tripleo-ceph-common
+    when:
+      - ceph_common_done is undefined

tripleo_ansible/roles/tripleo-ceph-work-dir/tasks/get_ssh_private_key.yml

@@ -22,4 +22,5 @@
 - name: set private key file
   set_fact:
     ceph_ansible_private_key_file: "{{ playbook_dir }}/ssh_private_key"
-  when: ceph_ansible_private_key_file is not defined and detect_private_key_file.stat.exists
+  when:
+    - detect_private_key_file.stat.exists | bool

tripleo_ansible/roles/tripleo-ceph-work-dir/tasks/main.yml

@@ -16,3 +16,5 @@
 
 - import_tasks: prepare.yml
 - import_tasks: get_ssh_private_key.yml
+  when:
+    - ceph_ansible_private_key_file is undefined

tripleo_ansible/roles/tripleo-ceph-work-dir/tasks/prepare.yml

@@ -34,6 +34,7 @@
     src: "{{ inventory_file }}"
     dest: "{{ playbook_dir }}/ceph-ansible/inventory.yml"
     state: link
+    force: true
   tags:
     - run_uuid_ansible
     - run_ceph_ansible
@@ -41,9 +42,9 @@
 - name: generate ceph-ansible group vars all
   copy:
     dest: "{{ playbook_dir }}/ceph-ansible/group_vars/all.yml"
-    content: "{{ ceph_ansible_group_vars_all|to_nice_yaml }}"
+    content: "{{ ceph_ansible_group_vars_all | to_nice_yaml }}"
 
 - name: generate ceph-ansible extra vars
   copy:
     dest: "{{ playbook_dir }}/ceph-ansible/extra_vars.yml"
-    content: "{{ ceph_ansible_extra_vars|to_nice_yaml }}"
+    content: "{{ ceph_ansible_extra_vars | to_nice_yaml }}"