Copy default net env yaml while not on bm

This commit adds the copy of the default network-environment.yml file in
case the deployment is not a of undercloud_type "baremetal".

Change-Id: I1f516a335ce0690f219a66623dbfc96fb35f6961

defaults/main.yml

@@ -1,6 +1,32 @@
 ---
 working_dir: /home/stack
 
+network_isolation: true
+
+network_environment_file: network-environment.yaml.j2
+
+external_network_cidr: 192.168.23.0/24
+undercloud_external_network_cidr: 10.0.0.1/24
+undercloud_network_cidr: 192.168.24.0/24
+
+overcloud_public_vip: 10.0.0.5
+ssl_overcloud: false
+
+network_environment_args:
+  ExternalNetCidr: "{{ undercloud_external_network_cidr }}"
+  ExternalAllocationPools: >
+    [{'start': '{{ undercloud_external_network_cidr|nthhost(4) }}',
+    'end': '{{ undercloud_external_network_cidr|nthhost(250) }}'}]
+  NeutronExternalNetworkBridge: ""
+  ControlPlaneSubnetCidr: "{{ undercloud_network_cidr|ipaddr('prefix') }}"
+  ControlPlaneDefaultRoute: "{{ undercloud_network_cidr|nthhost(1) }}"
+  EC2MetadataIp: "{{ undercloud_network_cidr|nthhost(1) }}"
+  DnsServers: [ '{{ external_network_cidr|nthhost(1) }}' ]
+
+public_virtual_fixed_ips:
+  PublicVirtualFixedIPs: >
+    [{'ip_address':'{{ overcloud_public_vip }}'}]
+
 undercloud_type: virtual
 baremetal_instackenv: "{{ working_dir }}/instackenv.json"
 baremetal_network_environment: "{{ working_dir }}/network-isolation.yml"

tasks/main.yml

@@ -1,4 +1,17 @@
 ---
+- name: Add PublicVirtualFixedIPs Argument to network environment file
+  set_fact:
+    network_environment_args: >-
+      {{ network_environment_args | combine(public_virtual_fixed_ips) }}
+  when: ssl_overcloud|bool and undercloud_type != "baremetal"
+
+- name: Create network environment file for network isolation
+  template:
+    src: "{{ network_environment_file }}"
+    dest: "{{ working_dir }}/network-environment.yaml"
+    mode: 0644
+  when: network_isolation|bool and undercloud_type != "baremetal"
+
 - when: undercloud_type == "baremetal"
   block:
 

templates/network-environment.yaml.j2

@@ -0,0 +1,8 @@
+{#
+This takes advantage of the fact that valid JSON is also
+valid YAML.  The default to_nice_yaml filter doesn't quote strings,
+which can cause unexpected implicit type conversion when the
+resulting YAML is consumed, whereas with JSON all strings are quoted.
+#}
+{% set parameter_defaults = {'parameter_defaults': network_environment_args} %}
+{{ parameter_defaults|to_nice_json }}