Add playbook to archive all running containers

In some cases a deployer may want to make a running backup of all
containers within an environment. This playbook will index all
containers and arhive them in the /opt/archives directory on the
physical host the container is running on.

Change-Id: I94880d4c00f89d5c678a1903f35120917561aa51
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

ansible_tools/playbooks/archive-containers.yml

@@ -0,0 +1,44 @@
+---
+# Copyright 2017, Rackspace US, Inc.
+#
+# 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: Archive container(s)
+  hosts: "{{ container_group|default('all_containers') }}"
+  gather_facts: false
+  serial: '20%'
+  user: root
+  pre_tasks:
+    - name: Create archive directory
+      file:
+        path: /opt/archives
+        state: directory
+      delegate_to: "{{ physical_host }}"
+  tasks:
+    - name: Get container current state
+      shell: "lxc-info -sn {{ inventory_hostname }} | awk '{print $2}'"
+      register: current_state
+      delegate_to: "{{ physical_host }}"
+
+    - name: Archive container
+      lxc_container:
+        name: "{{ inventory_hostname }}"
+        state: "{{ container_state[current_state.stdout.strip()] }}"
+        archive: true
+        archive_path: /opt/archives
+      delegate_to: "{{ physical_host }}"
+  vars:
+    container_state:
+      RUNNING: started
+      STOPPED: stopped
+      FROZEN: frozen