[LXC] Force lxc containers to be in the correct timezone

Right now lxc containers are in the Etc/UTC timezone, this commit change
it so that they are in the same timezone as the host by copying
/etc/timezone and /etc/localtime (without dereferencing it) inside of
the container.

It might not be able to survive an update of the tzdata package however.
(Debian shouldn't change manual configuration upon update but they chose
to anyways so bear with it).

lxc/tasks/create-container.yml

@@ -52,6 +52,23 @@
     insertbefore: "^exit 0$"
   when: release == 'jessie'
 
+- name: "Force container {{ name }} to be in the correct timezone [1/2]"
+  copy:
+    src: "/etc/timezone"
+    dest: "/var/lib/lxc/{{ name }}/rootfs/etc/timezone"
+    force: yes
+    owner: root
+    group: root
+
+- name: "Force container {{ name }} to be in the correct timezone [2/2]"
+  copy:
+    src: "/etc/localtime"
+    dest: "/var/lib/lxc/{{ name }}/rootfs/etc/localtime"
+    force: yes
+    local_follow: no
+    owner: root
+    group: root
+
 - name: "Ensure that {{ name }} container is running"
   lxc_container:
     name: "{{ name }}"