Remove post_config from the Kibana role

Since at least Stein, there is no visible effect from these tasks.
The Kibana dashboard seems to be working exactly the same,
greeting user on the first use with "please configure my index".
I tested on both Ubuntu and CentOS.
In new E*K stack (Ussuri+, CentOS8+) it even causes play errors.

Co-authored-by: Radosław Piliszek <radoslaw.piliszek@gmail.com>
Change-Id: Iafc6986cce9cbaa0ea9e219ca85d7d01a61308cf
Closes-Bug: #1799689

ansible/roles/kibana/defaults/main.yml

@@ -35,16 +35,6 @@ kibana_elasticsearch_shard_timeout: 0
 kibana_elasticsearch_ssl_verify: false
 
 
-####################
-# Default index
-####################
-kibana_default_index_pattern: "{{ kibana_log_prefix }}-*"
-kibana_default_index:
-  title: "{{ kibana_default_index_pattern }}"
-  timeFieldName: "@timestamp"
-kibana_default_index_options:
-  index.mapper.dynamic: true
-
 ####################
 # Docker
 ####################

ansible/roles/kibana/tasks/deploy.yml

@@ -3,5 +3,3 @@
 
 - name: Flush handlers
   meta: flush_handlers
-
-- include_tasks: post_config.yml

ansible/roles/kibana/tasks/post_config.yml

----
-- name: Wait for kibana port
-  wait_for:
-    host: "{{ kolla_internal_fqdn }}"
-    port: "{{ kibana_server_port }}"
-  run_once: true
-
-- name: Register the kibana index in elasticsearch
-  become: true
-  kolla_toolbox:
-    module_name: uri
-    module_args:
-      url: "{{ internal_protocol }}://{{ kolla_internal_fqdn | put_address_in_context('url') }}:{{ elasticsearch_port }}/.kibana"
-      method: PUT
-      body: "{{ kibana_default_index_options | to_json }}"
-      body_format: json
-      status_code: 200, 201, 400
-  register: result
-  failed_when:
-    # If the index already exists, Elasticsearch will respond with a 400 error.
-    - result.status == 400
-    # Format: {"json": {"error": {"type": "index_already_exists_exception"}}}
-    - result.get('json', {}).get('error', {}).get('type') != 'index_already_exists_exception'
-  run_once: true
-
-- name: Wait for kibana to register in elasticsearch
-  become: true
-  kolla_toolbox:
-    module_name: uri
-    module_args:
-      url: "{{ internal_protocol }}://{{ kolla_internal_fqdn | put_address_in_context('url') }}:{{ elasticsearch_port }}/.kibana"
-      status_code: 200
-  register: result
-  until: result.status == 200
-  retries: 20
-  delay: 2
-  run_once: true
-
-- name: Change kibana config to set index as defaultIndex
-  vars:
-    kibana_default_index_body:
-      defaultIndex: "{{ kibana_default_index_pattern }}"
-  become: true
-  kolla_toolbox:
-    module_name: uri
-    module_args:
-      url: "{{ internal_protocol }}://{{ kolla_internal_fqdn | put_address_in_context('url') }}:{{ elasticsearch_port }}/.kibana/config/*"
-      method: PUT
-      body: "{{ kibana_default_index_body | to_json }}"
-      body_format: json
-      status_code: 200, 201
-  run_once: true
-
-- name: Get kibana default indexes
-  become: true
-  kolla_toolbox:
-    module_name: uri
-    module_args:
-      headers:
-        Content-Type: application/json
-      url: "{{ internal_protocol }}://{{ kolla_internal_fqdn | put_address_in_context('url') }}:{{ elasticsearch_port }}/.kibana"
-      method: GET
-  register: kibana_default_indexes
-  run_once: true
-  when: kibana_default_index is defined
-
-- name: Set kibana default indexes fact
-  set_fact:
-    kibana_default_indexes: "{{ kibana_default_indexes.json | default([]) }}"
-  when:
-    - kibana_default_indexes is defined
-  run_once: true
-  connection: local
-
-- name: Add index pattern to kibana
-  become: true
-  kolla_toolbox:
-    module_name: uri
-    module_args:
-      url: "{{ internal_protocol }}://{{ kolla_internal_fqdn | put_address_in_context('url') }}:{{ elasticsearch_port }}/.kibana/index-pattern/{{ kibana_default_index_pattern }}"  # noqa 204
-      method: PUT
-      body: "{{ kibana_default_index | to_json }}"
-      body_format: json
-      status_code: 201
-  run_once: true
-  when:
-    - kibana_default_index is defined
-    - kibana_default_indexes is defined
-    - kibana_default_indexes['.kibana']['mappings']['config']['properties']['defaultIndex'] is not defined

releasenotes/notes/bug-1799689-c8612c73649ac483.yaml

+---
+fixes:
+  - |
+    Fixes Kibana deployment with the new E*K stack (6+).
+    `LP#1799689 <https://launchpad.net/bugs/1799689>`__