Add CentOS support

Add ceph support for ceph repos.

Change-Id: I677d890378e636813fbea34afe4e4656b4fc6282

releasenotes/notes/Add-CentOS-support-05f2d1302b7ee2e7.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - CentOS7/RHEL support has been added to the ceph_client role.
+  - Only Ceph repos are supported for now.

tasks/ceph_install.yml

@@ -13,9 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- include: ceph_install_apt.yml
-  static: no
-  when:
-    - ansible_pkg_mgr == 'apt'
+- include: "ceph_install_{{ ansible_pkg_mgr }}.yml"
   tags:
     - ceph-apt-packages
+    - ceph-yum-packages

tasks/ceph_install_yum.yml

@@ -0,0 +1,31 @@
+---
+# Copyright 2017, Marc Gariépy <gariepy.marc@gmail.com>
+#
+# 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.
+
+- name: Install ceph packages
+  yum:
+    name: '{{ item.1 }}'
+    state: "{{ ceph_client_package_state }}"
+  register: install_packages
+  until: install_packages|success
+  retries: 5
+  delay: 2
+  with_subelements:
+  - "{{ ceph_components }}"
+  - package
+  when: inventory_hostname in groups[item.0.component]
+  notify:
+  - Restart os services
+  tags:
+  - ceph-yum-packages

tasks/ceph_preinstall.yml

@@ -14,9 +14,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- include: ceph_preinstall_apt.yml
+- include: "ceph_preinstall_{{ ansible_pkg_mgr }}.yml"
   static: no
-  when:
-    - ansible_pkg_mgr == 'apt'
   tags:
     - ceph-apt-keys
+    - ceph-rpm-keys
+    - ceph-repos

tasks/ceph_preinstall_yum.yml

@@ -0,0 +1,54 @@
+---
+# Copyright 2017 Marc Gariépy <gariepy.marc@gmail.com>
+#
+# 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.
+
+- name: Add ceph rpm key
+  rpm_key:
+    key: "{{ ceph_gpg_keys }}"
+    state: "present"
+  register: add_keys
+  until: add_keys|success
+  failed_when: false
+  retries: 5
+  delay: 2
+  when: ceph_pkg_source == 'ceph'
+  tags:
+    - ceph-rpm-keys
+
+- name: Add ceph repo
+  yum_repository:
+    name: ceph
+    description: "Ceph packages for $basearch"
+    file: ceph
+    baseurl: "{{ceph_yum_repo_url}}/$basearch"
+    gpgcheck: yes
+    enabled: yes
+    gpgkey: "{{ ceph_gpg_keys }}"
+    state: present
+  tags:
+    - ceph-repos
+
+- name: Add ceph noarch repo
+  yum_repository:
+    name: ceph-noarch
+    description: "Ceph noarch packages"
+    file: ceph
+    baseurl: "{{ceph_yum_repo_url}}/noarch"
+    gpgcheck: yes
+    enabled: yes
+    gpgkey: "{{ ceph_gpg_keys }}"
+    state: present
+  tags:
+    - ceph-repos
+

vars/redhat.yml

@@ -12,3 +12,12 @@
 # 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.
+
+# Ceph GPG Keys
+ceph_gpg_keys:
+  - key: 'https://download.ceph.com/keys/release.asc'
+
+ceph_repo_url_region: "download" # see here for other mirros http://docs.ceph.com/docs/master/install/mirrors/
+ceph_yum_repo_url: "http://{{ ceph_repo_url_region }}.ceph.com/rpm-{{ ceph_stable_release }}/"
+
+# TODO mgariepy: add CentOS SIG ceph repo.