# Copyright 2020 Adarsh yadav
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
---
#Deleting EFK setup from k8s cluster

#check kubelet is running or not
- name: check for kubelet
  shell: "systemctl status kubelet"
  register: _svc_kubelet
  failed_when: _svc_kubelet.rc != 0 and ("could not be found" not in _svc_kubelet.stderr)

#***********************************************************************************************************
#copy all yaml to /tmp/files/
#***********************************************************************************************************
- name: copy all yaml to /tmp/files/
  copy:
    src: ../../logging/files/
    dest: /tmp/files/

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Stop elastalert
#***********************************************************************************************************
- name: Delete elastalert config configmap
  k8s:
    state: absent
    src: /tmp/files/elastalert/ealert-conf-cm.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete elastalert key configmap
  k8s:
    state: absent
    src: /tmp/files/elastalert/ealert-key-cm.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete elastalert rule configmap
  k8s:
    state: absent
    src: /tmp/files/elastalert/ealert-rule-cm.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete elastalert pod
  k8s:
    state: absent
    src: /tmp/files/elastalert/elastalert.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Stop fluentd
#***********************************************************************************************************

- name: Delete fluentd service
  k8s:
    state: absent
    src: /tmp/files/fluentd/fluent-service.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete fluentd configmap
  k8s:
    state: absent
    src: /tmp/files/fluentd/fluent-cm.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete fluentd pod
  k8s:
    state: absent
    src: /tmp/files/fluentd/fluent.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Stop nginx
#***********************************************************************************************************
- name: Delete nginx service
  k8s:
    state: absent
    src: /tmp/files/nginx/nginx-service.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete nginx configmap
  k8s:
    state: absent
    src: /tmp/files/nginx/nginx-conf-cm.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete nginx key configmap
  k8s:
    state: absent
    src: /tmp/files/nginx/nginx-key-cm.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

- name: Delete nginx pod
  k8s:
    state: absent
    src: /tmp/files/nginx/nginx.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Stop Kibana
#***********************************************************************************************************
- name: Stopping Kibana
  k8s:
    state: absent
    src: /tmp/files/kibana/kibana.yaml
    namespace: logging
  ignore_errors: yes
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Stop Elasticsearch
#***********************************************************************************************************
- name: Stopping Elasticsearch
  k8s:
    state: absent
    src: /tmp/files/elasticsearch/elasticsearch.yaml
    namespace: logging
  ignore_errors: yes
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Stop Elasticsearch operator
#***********************************************************************************************************
- name: Stopping Elasticsearch operator
  shell: kubectl delete -f https://download.elastic.co/downloads/eck/1.2.0/all-in-one.yaml
  ignore_errors: yes
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Delete Persistent Volume
#***********************************************************************************************************
- name: Deleting Persistent Volume
  k8s:
    state: absent
    src: /tmp/files/persistentVolume.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Delete Storage Class
#***********************************************************************************************************
- name: Deleting Storage Class
  k8s:
    state: absent
    src: /tmp/files/storageClass.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#IF KUBELET IS RUNNING, THEN
#Delete Namespace
#***********************************************************************************************************
- name: Deleting Namespace
  k8s:
    state: absent
    src: /tmp/files/namespace.yaml
    namespace: logging
  when: "_svc_kubelet.rc == 0"

#***********************************************************************************************************
#removing /tmp/files
#***********************************************************************************************************
- name: Removing /tmp/files
  file:
    path: "/tmp/files"
    state: absent