make listen address overridable

playbooks/roles/neo4j/defaults/main.yml

@@ -24,6 +24,7 @@ neo4j_version: "3.0.3"
 neo4j_server_config_file: "/etc/neo4j/neo4j.conf"
 neo4j_https_port: 7473  # default in package is 7473
 neo4j_http_port: 7474  # default in package is 7474
+neo4j_listen_address: "0.0.0.0"
 
 # Properties file settings
 neo4j_https_settings_key: "dbms.connector.https.address"

playbooks/roles/neo4j/tasks/main.yml

@@ -49,7 +49,7 @@
   lineinfile:
     dest: "{{ neo4j_server_config_file }}"
     regexp: "{{ neo4j_https_settings_key }}="
-    line: "{{ neo4j_https_settings_key }}=0.0.0.0:{{ neo4j_https_port }}"
+    line: "{{ neo4j_https_settings_key }}={{ neo4j_listen_address }}:{{ neo4j_https_port }}"
   tags:
     - install
     - install:configuration
@@ -58,7 +58,7 @@
   lineinfile:
     dest: "{{ neo4j_server_config_file }}"
     regexp: "{{ neo4j_http_settings_key }}="
-    line: "{{ neo4j_http_settings_key }}=0.0.0.0:{{ neo4j_http_port }}"
+    line: "{{ neo4j_http_settings_key }}={{ neo4j_listen_address }}:{{ neo4j_http_port }}"
   tags:
     - install
     - install:configuration