Neo4j EC2 instance Ansible run command

neo4j_ec2_instance_ansible.yml

--- 
- 
  become: true
  become_user: root
  hosts: all
  tasks: 
    - 
      name: "Install openJDK 8"
      yum: 
        name: java-1.8.0-openjdk
        state: latest
    - 
      alternatives: 
        name: java
        path: /usr/lib/jvm/jre-1.8.0-openjdk.x86_64/bin/java
      name: "correct java version selected"
    - 
      name: "Download and unarchive neo4j file"
      unarchive: 
        dest: /usr/local/share/.
        remote_src: true
        src: "http://dist.neo4j.org/{{neo4j_version}}-unix.tar.gz"
    - 
      lineinfile: 
        dest: "/usr/local/share/{{neo4j_version}}/conf/neo4j.conf"
        line: org.neo4j.server.webserver.address=0.0.0.0
        regexp: "^#org\\.neo4j\\.server\\.webserver\\.address=0\\.0\\.0\\.0"
      name: "Update Config file"
    - 
      lineinfile: 
        dest: "/usr/local/share/{{neo4j_version}}/conf/neo4j.conf"
        line: dbms.security.auth_enabled=false
        regexp: "^#dbms.security.auth_enabled=false"
      name: "Turn off login security on neo4j browser"
    - 
      lineinfile: 
        dest: "/usr/local/share/{{neo4j_version}}/conf/neo4j.conf"
        line: dbms.connector.https.enabled=false
        regexp: ^dbms.connector.https.enabled=true
      name: "Update https.enabled to false"
    - 
      lineinfile: 
        dest: "/usr/local/share/{{neo4j_version}}/conf/neo4j.conf"
        line: "dbms.connector.http.address=0.0.0.0:7474"
        regexp: "^#dbms\\.connector\\.http\\.address=0\\.0\\.0\\.0:7474"
      name: "Uncomment http.address and set to open 0.0.0.0"
    # This fixes the
    # `WARNING: Max 1024 open files allowed, minimum of 40000 recommended. See the Neo4j manual.`
    # error when starting neo4j in linux
    # http://neo4j.com/docs/1.6.2/configuration-linux-notes.html
    - 
      lineinfile: 
        dest: /etc/security/limits.conf
        line: "root   soft    nofile  40000"
        state: present
      name: "create soft root limit"
    - 
      lineinfile: 
        dest: /etc/security/limits.conf
        line: "root   hard    nofile  40000"
        state: present
      name: "create hard root limit"
    - 
      lineinfile: 
        dest: /etc/pam.d/su
        line: "session         required        pam_limits.so"
        state: present
      name: "change pam limits as outlined in the manual"
  vars: 
    neo4j_version: neo4j-community-3.0.9