Cleanup node deployment task playbook

As a follow-up to I71517146a197e39ed8ff2205e4234685d95331ad
this commit updates the conditional statements to explictly
indicate that the required state is true to improve
readability.

Additionally, revised lines related to DHCP templates to
multi-line format.

Change-Id: I919ef77a424266519a2590781284066c6f0f688b

playbooks/roles/bifrost-deploy-nodes-dynamic/tasks/main.yml

@@ -23,12 +23,22 @@
     auth: None
   when: noauth_mode | bool == true
 - name: "Setup DHCP for nodes."
-  template: src=dhcp-host.j2 dest=/etc/dnsmasq.d/bifrost.dhcp-hosts.d/{{ inventory_hostname }}  owner=root group=root mode=0644
+  template:
+    src: dhcp-host.j2
+    dest: "/etc/dnsmasq.d/bifrost.dhcp-hosts.d/{{ inventory_hostname }}"
+    owner: root
+    group: root
+    mode: 0644
   delegate_to: localhost
   when: inventory_dhcp | bool
   become: yes
 - name: "Setup DNS address for nodes."
-  template: src=dns-address.j2 dest=/etc/dnsmasq.d/host_record_{{ inventory_hostname }} owner=root group=root mode=0644
+  template:
+    src: dns-address.j2
+    dest: "/etc/dnsmasq.d/host_record_{{ inventory_hostname }}"
+    owner: root
+    group: root
+    mode: 0644
   delegate_to: localhost
   when: inventory_dns | bool
   become: yes
@@ -37,7 +47,7 @@
   # Ansible's reloaded state does not pass through to the init script.
   command: killall -HUP dnsmasq
   become: yes
-  when: (inventory_dhcp | bool) or (inventory_dns | bool)
+  when: (inventory_dhcp | bool == true) or (inventory_dns | bool == true)
 - name: "Deploy to hardware - Using custom instance_info."
   os_ironic_node:
     auth_type: "{{ auth_type | default(omit) }}"