Support RedHat yum installation

bifrost does not support RedHat rpm installation, in this patch,
added RedHat rpms list, and replace 'apt' Ubuntu command to ansible
pkg_mgr var to support both Ubuntu and RedHat.

And remove the duplication testing packages installation section.

Closes-bug: 1456896
Change-Id: I58d627d3deb4a8a2712f242429e93b8ded9cfb76

README.rst

@@ -18,6 +18,11 @@ This is split into roughly three steps:
 - deploy:
   instruct Ironic to deploy the operating system onto each machine.
 
+Supported Operating Systems:
+
+* Ubuntu
+* Red Hat Enterprise Linux (RHEL) 7
+* CentOS 7
 
 Installation
 ============

playbooks/roles/bifrost-create-vm-nodes/tasks/main.yml

@@ -14,7 +14,8 @@
 #
 # TODO: Consider converting to ansible virt module.
 ---
-- name: "Install testing packages"
+- name: "Install testing apt packages for Ubuntu/Debian"
+  when: ansible_os_family == 'Debian'
   apt: name={{ item }} state=present
   with_items:
     - libvirt-bin
@@ -22,6 +23,16 @@
     - qemu-kvm
     - qemu-system-x86
     - sgabios
+- name: "Install testing yum packages for RedHat/CentOS/Fedora/OpenSuse"
+  when: ansible_os_family in ['CentOS', 'Fedora', 'OpenSuse', 'RedHat']
+  yum: name={{ item }} state=present
+  with_items:
+    - libvirt-client
+    - qemu-img
+    - qemu-kvm-tools
+    - qemu-kvm
+    - qemu-system-x86
+    - sgabios
 - name: "Restart libvirt service"
   service: name=libvirt-bin state=restarted
 - name: "Create virtual machines"

playbooks/roles/ironic-install/defaults/main.yml

@@ -2,33 +2,6 @@
 # Cleaning turns on ironic conductor clean_nodes flag
 # chich causes the nodes to be wiped after deletion.
 cleaning: true
-# The list of required packages for this role to install.
-required_packages_ubuntu:
-  - mysql-server
-  - dnsmasq
-  - rabbitmq-server
-  - python-dev
-  - python-pip
-  - python-mysqldb
-  - python-configparser
-  - libffi-dev
-  - libxslt-dev
-  - libssl-dev
-  - libxml2-dev
-  - ipxe
-  - tftpd-hpa
-  - tftp-hpa
-  - syslinux-common
-  - syslinux
-  - xinetd
-  - parted
-  - ipmitool
-  - psmisc
-  - nginx
-  - wget
-  - genisoimage
-  - kpartx
-  - qemu-utils
 http_boot_folder: /httpboot
 nginx_port: 8080
 ironicclient_source_install: false

playbooks/roles/ironic-install/defaults/required_packages_Debian.yml

@@ -0,0 +1,26 @@
+required_packages:
+  - mysql-server
+  - dnsmasq
+  - rabbitmq-server
+  - python-dev
+  - python-pip
+  - python-mysqldb
+  - python-configparser
+  - libffi-dev
+  - libxslt-dev
+  - libssl-dev
+  - libxml2-dev
+  - ipxe
+  - tftpd-hpa
+  - tftp-hpa
+  - syslinux-common
+  - syslinux
+  - xinetd
+  - parted
+  - ipmitool
+  - psmisc
+  - nginx
+  - wget
+  - genisoimage
+  - kpartx
+  - qemu-utils

playbooks/roles/ironic-install/defaults/required_packages_RedHat.yml

@@ -0,0 +1,25 @@
+required_packages:
+  - mariadb-server
+  - dnsmasq
+  - rabbitmq-server
+  - python-devel
+  - python-pip
+  - MySQL-python
+  - python-iniparse
+  - libffi-devel
+  - libxslt-devel
+  - openssl-devel
+  - libxml2-devel
+  - ipxe-bootimgs
+  - tftp-server
+  - syslinux
+  - syslinux-tftpboot
+  - xinetd
+  - parted
+  - ipmitool
+  - psmisc
+  - nginx
+  - wget
+  - genisoimage
+  - kpartx
+  - qemu-kvm-tools

playbooks/roles/ironic-install/tasks/main.yml

@@ -13,24 +13,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ---
+
+- name: Include OS-specific packages variables.
+  include_vars: "{{ item }}"
+  with_first_found:
+    - "../defaults/required_packages_{{ ansible_distribution }}.yml"
+    - "../defaults/required_packages_{{ ansible_os_family }}.yml"
 - name: "Update Package Cache"
   apt: update_cache=yes
+  when: ansible_os_family == 'Debian'
 - name: "Install packages"
-  apt: name={{ item }}
+  action: "{{ ansible_pkg_mgr }} name={{ item }}"
-  with_items: required_packages_ubuntu
+  with_items: required_packages
 # Step required for Ubuntu 14.10
 - name: "Install 14.10 packages"
-  apt: name={{ item }}
+  action: "{{ ansible_pkg_mgr }} name={{ item }}"
   with_items:
     - pxelinux
-  when: ansible_distribution_version|version_compare('14.10', '>=')
+  when: ansible_distribution_version|version_compare('14.10', '>=') and ansible_distribution == 'Ubuntu'
-- name: "Install testing packages"
-  apt: name={{ item }}
-  when: testing is defined and testing == true
-  with_items:
-    - libvirt-bin
-    - qemu-kvm
-    - sgabios
 - name: "Ensuring /opt/stack is present"
   file: name=/opt/stack state=directory owner=root group=root
 - name: "Downloading Ironic"