kibana: Remove 6.x migration from upgrade

This was required in Train and Ussuri for the 5.x to 6.x upgrade, but is
no longer necessary.

Change-Id: I8a08f1c411c243c4d1cb6efd0e82de67a5151197

ansible/roles/kibana/tasks/migrate-kibana-index.yml

@@ -1,111 +0,0 @@
----
-- name: Set fact for Elasticsearch URL
-  set_fact:
-    elasticsearch_url: "{{ internal_protocol }}://{{ kolla_internal_fqdn | put_address_in_context('url') }}:{{ elasticsearch_port }}"
-
-- name: Wait for Elasticsearch
-  become: true
-  kolla_toolbox:
-    module_name: uri
-    module_args:
-      url: "{{ elasticsearch_url }}"
-  delegate_to: "{{ groups['elasticsearch'][0] }}"
-  run_once: true
-  retries: 10
-  delay: 5
-  register: result
-  until: ('status' in result) and result.status == 200
-
-- name: Check state of migration
-  become: true
-  kolla_toolbox:
-    module_name: uri
-    module_args:
-      url: "{{ elasticsearch_url }}/.kibana/_mappings/doc"
-      status_code: [200, 404]
-  delegate_to: "{{ groups['elasticsearch'][0] }}"
-  run_once: true
-  register: kibana_6_index
-
-# The official procedure for migrating the Kibana index:
-# https://www.elastic.co/guide/en/kibana/6.x/migrating-6.0-index.html
-- name: Migrate Kibana index to 6.x
-  block:
-    - name: Set .kibana index to read-only
-      become: true
-      kolla_toolbox:
-        module_name: uri
-        module_args:
-          url: "{{ elasticsearch_url }}/.kibana/_settings"
-          method: PUT
-          status_code: 200
-          return_content: yes
-          body: |
-            {
-              "index.blocks.write": true
-            }
-          body_format: json
-      delegate_to: "{{ groups['elasticsearch'][0] }}"
-      run_once: true
-
-    - name: Create .kibana-6 index
-      become: true
-      kolla_toolbox:
-        module_name: uri
-        module_args:
-          url: "{{ elasticsearch_url }}/.kibana-6"
-          method: PUT
-          status_code: 200
-          return_content: yes
-          body: "{{ lookup('file', 'kibana-6-index.json') }}"
-          body_format: json
-      delegate_to: "{{ groups['elasticsearch'][0] }}"
-      run_once: true
-
-    - name: Reindex .kibana into .kibana-6
-      become: true
-      kolla_toolbox:
-        module_name: uri
-        module_args:
-          url: "{{ elasticsearch_url }}/_reindex"
-          method: POST
-          status_code: 200
-          return_content: yes
-          body: |
-            {
-              "source": {
-                "index": ".kibana"
-              },
-              "dest": {
-                "index": ".kibana-6"
-              },
-              "script": {
-                "inline": "ctx._source = [ ctx._type : ctx._source ]; ctx._source.type = ctx._type; ctx._id = ctx._type + \":\" + ctx._id; ctx._type = \"doc\"; ",  # noqa 204
-                "lang": "painless"
-              }
-            }
-          body_format: json
-      delegate_to: "{{ groups['elasticsearch'][0] }}"
-      run_once: true
-
-    - name: Alias .kibana-6 to .kibana and remove legacy .kibana index
-      become: true
-      kolla_toolbox:
-        module_name: uri
-        module_args:
-          url: "{{ elasticsearch_url }}/_aliases"
-          method: POST
-          status_code: 200
-          return_content: yes
-          body: |
-            {
-              "actions" : [
-                { "add":  { "index": ".kibana-6", "alias": ".kibana" } },
-                { "remove_index": { "index": ".kibana" } }
-              ]
-            }
-          body_format: json
-      delegate_to: "{{ groups['elasticsearch'][0] }}"
-      run_once: true
-
-  when: ('status' in kibana_6_index) and kibana_6_index.status != 200

ansible/roles/kibana/tasks/upgrade.yml

@@ -3,7 +3,5 @@
 
 - import_tasks: check-containers.yml
 
-- import_tasks: migrate-kibana-index.yml
-
 - name: Flush handlers
   meta: flush_handlers