Initial Shield support + latest gems + single plugin dir + new port/host vars

tasks/elasticsearch-plugins.yml

@@ -4,24 +4,20 @@
 # i.e. we have changed ES version(or we have clean installation of ES), or if no plugins listed. Otherwise it is false and requires explicitly setting.
 - set_fact: es_plugins_reinstall=true
   when: ((elasticsearch_install_from_package is defined and elasticsearch_install_from_repo.changed) or (elasticsearch_install_from_package is defined and elasticsearch_install_from_package.changed)) or es_plugins is not defined or es_plugins is none
-  tags:
-      - always
 
 - set_fact: list_command="list"
-  tags:
-      - always
+
 - set_fact: list_command="--list"
   when: es_version | version_compare('2.0', '<')
-  tags:
-      - always
 
 #List currently installed plugins
 - shell: "{{es_home}}/bin/plugin {{list_command}} | sed -n '1!p' | cut -d '-' -f2-"
   register: installed_plugins
   changed_when: False
+  ignore_errors: yes
   environment:
-      CONF_DIR: "{{ conf_dir }}"
-      ES_INCLUDE: "{{ instance_default_file }}"
+    CONF_DIR: "{{ conf_dir }}"
+    ES_INCLUDE: "{{ instance_default_file }}"
 
 #This needs to removes any currently installed plugins
 - name: Remove elasticsearch plugins
@@ -50,4 +46,4 @@
 
 #Set permissions on plugins directory
 - name: Set Plugin Directory Permissions
-  file: state=directory path={{ plugin_dir }} owner={{ es_user }} group={{ es_group }} recurse=yes
+  file: state=directory path={{ es_home }}/plugins owner={{ es_user }} group={{ es_group }} recurse=yes