Fix path for lxc-net config on distro.

Introducing system_config_dir to configure where the lxc-net file is
located on centos or ubuntu.

Change-Id: I3e2bbfd81f17b8a697ed9d7cad81c89b2b48ba9f

tasks/lxc_install_apt.yml

@@ -46,7 +46,7 @@
 - name: Drop irqbalance config
   template:
     src: "irqbalance.j2"
-    dest: "/etc/default/irqbalance"
+    dest: "{{ system_config_dir }}/irqbalance"
     owner: "root"
     group: "root"
     mode: "0644"

tasks/lxc_post_install.yml

@@ -33,7 +33,7 @@
   with_items:
     - { src: lxc-openstack.conf.j2, dest: "/etc/lxc/lxc-openstack.conf" }
     - { src: default.conf.j2, dest: "/etc/lxc/default.conf" }
-    - { src: lxc.default.j2, dest: "/etc/default/lxc-net", mode: "0644" }
+    - { src: lxc.default.j2, dest: "{{ system_config_dir}}/lxc-net", mode: "0644" }
     - { src: lxc-system-manage.j2, dest: "/usr/local/bin/lxc-system-manage", mode: "0755" }
   tags:
     - lxc-files

templates/lxc-system-manage.j2

@@ -129,8 +129,8 @@ function pre_up {
     fi
 
     # Source the lxc defaults
-    if [[ -f "/etc/default/lxc" ]]; then
-      source "/etc/default/lxc"
+    if [[ -f "{{ system_config_dir}}/lxc" ]]; then
+      source "{{ system_config_dir}}/lxc"
     fi
 
     # Set the lock type where applicable

vars/redhat-7.yml

@@ -14,6 +14,7 @@
 # limitations under the License.
 
 lxc_download_url: "https://linuxcontainers.org/downloads/lxc/lxc-2.0.4.tar.gz"
+system_config_dir: "/etc/sysconfig"
 
 # Required rpm packages.
 lxc_hosts_distro_packages:

vars/ubuntu-14.04.yml

@@ -36,6 +36,7 @@ lxc_hosts_distro_packages:
   - python3-lxc
   - pxz
 
+system_config_dir: "/etc/default"
 lxc_cache_map:
   distro: ubuntu
   arch: "{{ lxc_architecture_mapping.get( ansible_architecture ) }}"

vars/ubuntu-16.04.yml

@@ -37,6 +37,7 @@ lxc_hosts_distro_packages:
   - python3-lxc
   - pxz
 
+system_config_dir: "/etc/default"
 lxc_cache_map:
   distro: ubuntu
   arch: "{{ lxc_architecture_mapping.get( ansible_architecture ) }}"