Ensure package cache is updated for nspawn containers

Due to differences in the way the containers are created, the
package cache must be forcefully updated after creation. If
this is not done then apt thinks that it's up to date and
fails package installs.

We also ensure that the quota is rescanned to ensure that
it is up to date.

The playbook arrangement is also updated to standardise to
the same pattern as the others.

Depends-On: https://review.openstack.org/593033
Change-Id: I44ea902b0785bdeec4565e926105d24fae18500f
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

playbooks/containers-nspawn-create.yml

@@ -17,9 +17,13 @@
   hosts: "{{ nspawn_host_group | default('nspawn_hosts') }}"
   gather_facts: true
 
+
 - name: Set nspawn containers group
   hosts: "{{ container_group | default('all_containers') }}"
   gather_facts: false
+  tags:
+    - always
+    - nspawn-containers-create
   tasks:
     - name: Add hosts to dynamic inventory group
       group_by:
@@ -27,14 +31,15 @@
         parents: all_nspawn_containers
       when:
         - container_tech == 'nspawn'
-  tags:
-    - always
-    - nspawn-containers-create
+
 
 - name: Create container(s)
   hosts: all_nspawn_containers
   gather_facts: false
   user: root
+  environment: "{{ deployment_environment_variables | default({}) }}"
+  tags:
+    - nspawn-containers-create
   roles:
     - role: "nspawn_container_create"
   post_tasks:
@@ -45,6 +50,52 @@
         sleep: "{{ lxc_container_wait_params.sleep | default(omit) }}"
         timeout: "{{ lxc_container_wait_params.timeout | default(omit) }}"
 
+
+- name: Rescan storage quotas
+  hosts: "{{ nspawn_host_group | default('nspawn_hosts') }}"
+  gather_facts: false
+  tags:
+    - nspawn-containers-create
+  tasks:
+    - name: Rescan quotas
+      command: "btrfs quota rescan -w /var/lib/machines"
+      changed_when: false
+
+
+- name: Configure containers default software
+  hosts: all_nspawn_containers
+  gather_facts: true
+  user: root
+  vars_files:
+    - defaults/repo_packages/openstack_services.yml
+    - "defaults/{{ install_method }}_install.yml"
+  environment: "{{ deployment_environment_variables | default({}) }}"
+  tags:
+    - nspawn-containers-create
+  pre_tasks:
+    - name: Update package cache (apt)
+      package:
+        update_cache: yes
+        force_apt_get: yes
+        force: yes
+      register: cache_update
+      until: cache_update is success
+      retries: 5
+      delay: 15
+      when:
+        - ansible_pkg_mgr == 'apt'
+
+    - name: Update package cache (zypper)
+      zypper_repository:
+        repo: '*'
+        runrefresh: yes
+      register: cache_update
+      until: cache_update is success
+      retries: 5
+      delay: 15
+      when:
+        - ansible_pkg_mgr == 'zypper'
+
     # When using gather_facts with smart gathering,
     # the facts aren't fully updated unless they
     # are old. Using the setup module in a task
@@ -56,26 +107,13 @@
     - name: Gather facts for new container(s)
       setup:
         gather_subset: "network,hardware,virtual"
-  environment: "{{ deployment_environment_variables | default({}) }}"
-  tags:
-    - nspawn-containers-create
 
-- name: Configure containers default software
-  hosts: all_nspawn_containers
-  gather_facts: true
-  user: root
-  pre_tasks:
     - include: common-tasks/package-cache-proxy.yml
       when: install_method == "source"
+
     - include: common-tasks/set-pip-vars.yml
       when: install_method == "source"
   roles:
     - role: "openstack_hosts"
       is_container: true
-      cache_timeout: 0
-  vars_files:
-    - defaults/repo_packages/openstack_services.yml
-    - "defaults/{{ install_method }}_install.yml"
-  environment: "{{ deployment_environment_variables | default({}) }}"
-  tags:
-    - nspawn-containers-create
+