Modify the baremetal playbooks to use baseos undercloud

The baremetal deployment should follow OVB closely.
Add a baseos undercloud and build/fetch images
under the same conditions as OVB.

Story: https://tree.taiga.io/project/tripleo-ci-board/task/950
Change-Id: I67439f3497499f30801d185a298e01f112f01fbe

playbooks/baremetal-prep-virthost.yml

@@ -35,9 +35,17 @@
   roles:
     - environment/setup
 
+- name: Check whether to build images
+  hosts: virthost
+  gather_facts: true
+  roles:
+    - check-to-build-or-not-to-build
+
 - name: Setup undercloud and baremetal vms and networks in libvirt
   hosts: virthost
   gather_facts: true
+  vars:
+    baseos: true
   roles:
     - libvirt/setup
 
@@ -51,31 +59,104 @@
   roles:
     - tripleo-inventory
 
+- name: Setup the undercloud
+  hosts: undercloud
+  gather_facts: true
+  vars:
+    non_root_user_setup: false
+  roles:
+    - undercloud-setup
+
 - name: Prepare the host for PXE forwarding
   hosts: virthost
   gather_facts: false
   roles:
     - baremetal-prep-virthost
 
+- name: Set to_build on undercloud
+  hosts: undercloud
+  gather_facts: true
+  tasks:
+    - name: set_fact for to_build on undercloud
+      set_fact:
+        to_build: "{{ hostvars[groups['virthost'][0]]['to_build'] }}"
+        cacheable: true
+
+    - name: set_fact for image_cache_dir on undercloud
+      set_fact:
+        image_cache_dir: "{{ working_dir }}/images-cache"
+        cacheable: true
+
+    - name: set_fact for libguestfs_mode on undercloud
+      set_fact:
+        libguestfs_mode: false
+        cacheable: true
+
 - name: Run DLRN gate role and install repo
   hosts: undercloud
   gather_facts: true
   become: true
+  vars:
+    artg_compressed_gating_repo: "/home/{{ undercloud_user }}/gating_repo.tar.gz"
+    artg_repos_dir: "{{ repo_clone_dir|default('/opt/stack/new') }}"
+    ib_create_web_repo: "{{ hostvars[groups['virthost'][0]]['to_build'] }}"
   tasks:
+    # Always build images even if running a periodic-* named job
+    # in a check pipeline for testing
+    - name: Always build images in periodic
+      set_fact:
+        to_build: true
+        cacheable: true
+      when: "'periodic' in zuul.job"
+
     - include_role:
         name: build-test-packages
       vars:
         artg_compressed_gating_repo: "/home/{{ undercloud_user }}/gating_repo.tar.gz"
+        artg_repos_dir: "{{ repo_clone_dir|default('/opt/stack/new') }}"
+      when: build_test_packages|default(false)|bool
 
     - include_role:
         name: install-built-repo
+      vars:
+        ib_create_web_repo: "{{ to_build|bool }}"
       when: compressed_gating_repo is defined
 
+- name: Get images for quickstart
+  hosts: undercloud
+  gather_facts: true
+  vars:
+    ib_repo_image_inject: "{{ not to_build|bool }}"
+    ib_repo_run_live: false
+    modify_image_vc_ram: 4096
+    modify_image_vc_cpu: 4
+    modify_image_vc_verbose: true
+  tasks:
+    - include_role:
+        name: fetch-images
+      when: not to_build|bool
+
+    - include_role:
+        name: repo-setup
+      vars:
+        repo_inject_image_path: "/home/{{ undercloud_user }}/overcloud-full.qcow2"
+        repo_run_live: false
+      when: not to_build|bool
+
+    - include_role:
+        name: repo-setup
+      vars:
+        repo_inject_image_path: "/home/{{ undercloud_user }}/ironic-python-agent.initramfs"
+        repo_run_live: false
+        initramfs_image: true
+        libguestfs_mode: false
+      when: not to_build|bool
+
     - include_role:
         name: install-built-repo
       vars:
         ib_repo_image_path: "/home/{{ undercloud_user }}/overcloud-full.qcow2"
-      when: compressed_gating_repo is defined
+      when: compressed_gating_repo is defined and not to_build|bool
 
     - include_role:
         name: install-built-repo
@@ -83,4 +164,4 @@
         ib_repo_image_path: "/home/{{ undercloud_user }}/ironic-python-agent.initramfs"
         initramfs_image: true
         libguestfs_mode: false
-      when: compressed_gating_repo is defined
+      when: compressed_gating_repo is defined and not to_build|bool

playbooks/to-build-or-not-to-build.yml

@@ -1,51 +1,6 @@
 ---
 - name: Decide whether we need to build images
   hosts: undercloud
-  vars:
-    # We always want to build images when we have changes in this
-    # list becuase these repos can affect the image building itelf
-    # This list is overridable via the "always_build_list" var if
-    # needed.
-    default_projects_need_build_list:
-      - diskimage-builder
-      - tripleo-image-elements
-      - tripleo-puppet-elements
-      - instack-undercloud
-      - python-tripleoclient
-      - tripleo-common
   tasks:
-    # The next two tasks make the list of ZUUL_CHANGES look like our build list
-    # after we cleanup the extra stuff there, we can just intersect the two
-    # lists in order to match.
-    - name: Cleanup front of ZUUL_CHANGES
-      set_fact:
-        zuul_changes: "{{ lookup('env', 'ZUUL_CHANGES')|regex_replace('openstack/', '') }}"
-
-    - name: Cleanup end of ZUUL_CHANGES
-      set_fact:
-        zuul_changes: "{{ zuul_changes|regex_replace(':[a-z]*:refs/changes/\\d{2}/\\d+/\\d+','') }}"
-
-    - name: Split zuul_changes to a list
-      set_fact:
-        zuul_changes: "{{ zuul_changes.split('^') }}"
-
-    - name: compare zuul_changes list to our always_build_list
-      set_fact:
-        projects_need_build: "{{ zuul_changes | intersect(projects_need_build_list|default(default_projects_need_build_list)) }}"
-
-    - name: Default to using cached images
-      set_fact:
-        to_build: false
-        cacheable: true
-
-    - name: Build images when we have a change in the always build list
-      set_fact:
-        to_build: true
-        cacheable: true
-      when: projects_need_build != []
-
-    - name: Always build images in the periodic jobs
-      set_fact:
-        to_build: true
-        cacheable: true
-      when: lookup('env', 'PERIODIC')|default('0')|int == 1
+    - include_role:
+        name: check-to-build-or-not-to-build

roles/check-to-build-or-not-to-build/README.md

@@ -0,0 +1,32 @@
+check-to-build-or-not-to-build
+==============================
+
+An Ansible role created from the original playbook
+to decide whether we need to build images. The role
+was created to allow this functionality to run on
+hosts other than the undercloud.
+
+This output of this role is a to_build variable,
+that is set to true or false to make image build and
+other related workflow decisions in later steps.
+
+Role Variables:
+---------------
+* ` default_projects_need_build_list` -- list of repos can affect the image building itelf
+
+Example Usage
+-------------
+
+```yaml
+---
+- name: Decide whether we need to build images
+  hosts: undercloud
+  tasks:
+    - include_role:
+         name: check-to-build-or-not-to-build
+```
+
+License
+-------
+
+Apache

roles/check-to-build-or-not-to-build/defaults/main.yml

@@ -0,0 +1,8 @@
+---
+default_projects_need_build_list:
+  - diskimage-builder
+  - tripleo-image-elements
+  - tripleo-puppet-elements
+  - instack-undercloud
+  - python-tripleoclient
+  - tripleo-common

roles/check-to-build-or-not-to-build/tasks/main.yml

@@ -0,0 +1,36 @@
+---
+# The next two tasks make the list of ZUUL_CHANGES look like our build list
+# after we cleanup the extra stuff there, we can just intersect the two
+# lists in order to match.
+- name: Cleanup front of ZUUL_CHANGES
+  set_fact:
+    zuul_changes: "{{ lookup('env', 'ZUUL_CHANGES')|regex_replace('openstack/', '') }}"
+
+- name: Cleanup end of ZUUL_CHANGES
+  set_fact:
+    zuul_changes: "{{ zuul_changes|regex_replace(':[a-z]*:refs/changes/\\d{2}/\\d+/\\d+','') }}"
+
+- name: Split zuul_changes to a list
+  set_fact:
+    zuul_changes: "{{ zuul_changes.split('^') }}"
+
+- name: compare zuul_changes list to our always_build_list
+  set_fact:
+    projects_need_build: "{{ zuul_changes | intersect(projects_need_build_list|default(default_projects_need_build_list)) }}"
+
+- name: Default to using cached images
+  set_fact:
+    to_build: false
+    cacheable: true
+
+- name: Build images when we have a change in the always build list
+  set_fact:
+    to_build: true
+    cacheable: true
+  when: projects_need_build != []
+
+- name: Always build images in the periodic jobs
+  set_fact:
+    to_build: true
+    cacheable: true
+  when: lookup('env', 'PERIODIC')|default('0')|int == 1