Add ansible provisioning (#122)

* first ansible skeleton

* first commit of ansible installation of vulnwhisperer outside docker

* first ansible skeleton

* first commit of ansible installation of vulnwhisperer outside docker

* refactor the ansible role a bit

* update readme, add fail validation step to provision.yml and fix
typo when calling a logging funciton

ansible/roles/elastic.elasticsearch/tasks/java.yml

@@ -0,0 +1,52 @@
+---
+
+- name: set fact java_state to present
+  set_fact: java_state="present"
+
+- name: set fact java_state to latest
+  set_fact: java_state="latest"
+  when: update_java == true
+
+- name: RedHat - Ensure Java is installed
+  become: yes
+  yum: name={{ java }} state={{java_state}}
+  when: ansible_os_family == 'RedHat'
+
+- name: Get the installed java path
+  shell: "update-alternatives --display java | grep '^/' | awk '{print $1}' | grep 1.8.0"
+  become: yes
+  register: java_full_path
+  failed_when: False
+  changed_when: False
+  when: ansible_os_family == 'RedHat'
+
+- name: correct java version selected
+  alternatives:
+    name: java
+    path: "{{ java_full_path.stdout }}"
+    link: /usr/bin/java
+  when: ansible_os_family == 'RedHat' and java_full_path is defined
+
+- name: Refresh java repo
+  become: yes
+  apt: update_cache=yes
+  changed_when: false
+  when: ansible_os_family == 'Debian'
+
+- name: Debian - Ensure Java is installed
+  become: yes
+  apt: name={{ java }} state={{java_state}}
+  when: ansible_os_family == 'Debian'
+
+- name: register open_jdk version
+  shell: java -version 2>&1 | grep OpenJDK
+  register: open_jdk
+  ignore_errors: yes
+  changed_when: false
+
+#https://github.com/docker-library/openjdk/issues/19 - ensures tests pass due to java 8 broken certs
+- name: refresh the java ca-certificates
+  become: yes
+  command: /var/lib/dpkg/info/ca-certificates-java.postinst configure
+  when: ansible_distribution == 'Ubuntu' and open_jdk.rc == 0
+  changed_when: false