Add bind mount for logstash and ensure java is installed

This change ensures java is installed where logstash is installed and
changes the logstash data-directory to a bind mount which will ensure
we're not running into space issues inside of our logstash container.

Change-Id: I43f7fb4a8641150c05dcde88a94b65e7c7d2f83a
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

elk_metrics_6x/installElastic.yml

@@ -14,6 +14,7 @@
       delegate_to: "{{ physical_host }}"
       tags:
         - sysctl
+
     - name: elasticsearch datapath bind mount
       lxc_container:
         name: "{{ inventory_hostname }}"
@@ -23,6 +24,9 @@
         container_config:
           - "lxc.mount.entry=/openstack/{{ inventory_hostname }} var/lib/elasticsearch none bind 0 0"
       delegate_to: "{{ physical_host }}"
+      when:
+        - physical_host != inventory_hostname
+        - container_tech | default('lxc') == 'lxc'
 
     - name: Ensure Java is installed
       apt:

elk_metrics_6x/installLogstash.yml

@@ -7,6 +7,35 @@
   tasks:
     - include_tasks: common_task_install_elk_repo.yml
 
+    - name: Configure systcl vm.max_map_count=262144 on container hosts
+      sysctl:
+        name: "vm.max_map_count"
+        value: "262144"
+        state: "present"
+        reload: "yes"
+      delegate_to: "{{ physical_host }}"
+      tags:
+        - sysctl
+
+    - name: logstash datapath bind mount
+      lxc_container:
+        name: "{{ inventory_hostname }}"
+        container_command: |
+          [[ ! -d "/var/lib/logstash" ]] && mkdir -p "/var/lib/logstash"
+        container_config:
+          - "lxc.mount.entry=/openstack/{{ inventory_hostname }} var/lib/logstash none bind 0 0"
+      delegate_to: "{{ physical_host }}"
+      when:
+        - physical_host != inventory_hostname
+        - container_tech | default('lxc') == 'lxc'
+
+    - name: Ensure Java is installed
+      apt:
+        name: openjdk-8-jre
+        state: present
+        install_recommends: yes
+        update_cache: yes
+
     - name: Ensure Logstash is installed.
       apt:
         name: logstash