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/xpack/elasticsearch-xpack.yml

@@ -0,0 +1,23 @@
+---
+
+- name: set fact es_version_changed
+  set_fact: es_version_changed={{ ((elasticsearch_install_from_package is defined and (debian_elasticsearch_install_from_repo.changed or redhat_elasticsearch_install_from_repo.changed)) or (elasticsearch_install_from_package is defined and elasticsearch_install_from_package.changed)) }}
+
+- name: include elasticsearch-xpack-install.yml
+  include: elasticsearch-xpack-install.yml
+  when: es_install_xpack
+
+#Security configuration
+- name: include security/elasticsearch-security.yml
+  include: security/elasticsearch-security.yml
+
+#Add any feature specific configuration here
+- name: Set Plugin Directory Permissions
+  become: yes
+  file: state=directory path={{ es_home }}/plugins owner={{ es_user }} group={{ es_group }} recurse=yes
+
+#Make sure elasticsearch.keystore has correct Permissions
+- name: Set elasticsearch.keystore Permissions
+  become: yes
+  file: state=file path={{ conf_dir }}/elasticsearch.keystore owner={{ es_user }} group={{ es_group }}
+  when: es_enable_xpack and "security" in es_xpack_features and (es_version | version_compare('6.0.0', '>'))