lxd-container: rename variable

for some reason ansible is now failing with a variable named "name",
claiming it is not defined.  just rename it, making it also more clear
what it is referring to.
Signed-off-by: Mattia Rizzolo <mapreri@ubuntu.com>

playbooks/roadhouse.yml

@@ -30,13 +30,13 @@
     - role: lxd
 
     - role: lxd-container
-      name: spock
+      container_name: spock
       ip: "{{ lxd_subnet }}.2"
       image: ubuntu/xenial/amd64
       expose_ports:
         - 2222
 
     - role: lxd-container
-      name: bromuro
+      container_name: bromuro
       ip: "{{ lxd_subnet }}.3"
       image: ubuntu/trusty/amd64

roles/lxd-container/tasks/creation.yml

 ---
 
-- name: "Create the {{ name }} container"
+- name: "Create the {{ container_name }} container"
   lxd_container:
-    name: "{{ name }}"
+    name: "{{ container_name }}"
     state: started
 
     source:
@@ -19,20 +19,20 @@
 
 - block:
 
-    - name: "Upload the bootstrap script for the {{ name }} container"
+    - name: "Upload the bootstrap script for the {{ container_name }} container"
       template:
         src: bootstrap-container.sh.j2
-        dest: "/tmp/bootstrap-container-{{ name }}.sh"
+        dest: "/tmp/bootstrap-container-{{ container_name }}.sh"
         mode: 0700
 
 
-    - name: "Execute the bootstrap script for the {{ name }} container"
-      command: "/tmp/bootstrap-container-{{ name }}.sh"
+    - name: "Execute the bootstrap script for the {{ container_name }} container"
+      command: "/tmp/bootstrap-container-{{ container_name }}.sh"
 
 
-    - name: "Delete the bootstrap script for the {{ name }} container"
+    - name: "Delete the bootstrap script for the {{ container_name }} container"
       file:
-        path: "/tmp/bootstrap-container-{{ name }}.sh"
+        path: "/tmp/bootstrap-container-{{ container_name }}.sh"
         state: absent
 
 

roles/lxd-container/tasks/networking.yml

 ---
 
-- name: "Assign a static IP address to the {{ name }} container"
+- name: "Assign a static IP address to the {{ container_name }} container"
   lineinfile:
-    line: "dhcp-host={{ name }},{{ ip }}"
-    regexp: "^dhcp\\-host={{ name }}"
+    line: "dhcp-host={{ container_name }},{{ ip }}"
+    regexp: "^dhcp\\-host={{ container_name }}"
 
     state: present
     path: /etc/lxd_dnsmasq.conf
 
   notify:
     - lxd.restart-bridge
-    - "lxd-container.restart-{{ name }}"
+    - "lxd-container.restart-{{ container_name }}"
 
 
-- name: "Expose {{ name }} ports"
+- name: "Expose {{ container_name }} ports"
   template:
     src: firewall.sh.j2
-    dest: "/etc/firewall/lxd-container-{{ name }}.sh"
+    dest: "/etc/firewall/lxd-container-{{ container_name }}.sh"
     mode: 0744
 
   when: expose_ports

roles/lxd-container/templates/bootstrap-container.sh.j2

@@ -3,10 +3,10 @@ set -euo pipefail
 IFS=$'\n\t'
 
 
-NAME="{{ name }}"
+NAME="{{ container_name }}"
 
 ex() {
-    lxc exec "${NAME}" -- $@
+    lxc exec "${NAME}" -- "${@}"
     return $?
 }