Update k8s_loki_pod.yml

Signed-off-by: abhishek-sa1 <abhishek.sa3@dell.com>

control_plane/roles/control_plane_monitoring/tasks/k8s_loki_pod.yml

@@ -1 +1,63 @@
+#  Copyright 2022 Dell Inc. or its subsidiaries. All Rights Reserved.
+#
+#  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.
+---
 
+- name: Deploy loki pod
+  kubernetes.core.k8s:
+    state: present
+    definition:
+      apiVersion: apps/v1
+      kind: Deployment
+      metadata:
+          name: "{{ loki_k8s_name }}"
+          namespace: "{{ grafana_namespace }}"
+          labels:
+              app: "{{ loki_k8s_name }}"
+      spec:
+          selector:
+              matchLabels:
+                  app: "{{ loki_k8s_name }}"
+          replicas: 1
+          strategy:
+              type: RollingUpdate
+          template:
+              metadata:
+                  labels:
+                      app: "{{ loki_k8s_name }}"
+              spec:
+                  volumes:
+                    - name: varlog
+                      hostPath:
+                        path: /var/log
+                        type: Directory
+
+                  hostAliases:
+                    - ip: "127.0.0.1"
+                      hostnames:
+                        - "loki"
+                        - "promtail"
+
+                  containers:
+                    - name: loki
+                      image: docker.io/grafana/loki:2.4.1
+                      imagePullPolicy: "Always"
+                      ports:
+                        - containerPort: "{{ loki_port }}"
+
+                    - name: promtail
+                      image: localhost/promtail:latest
+                      imagePullPolicy: "Never"
+                      volumeMounts:
+                        - name: varlog
+                          mountPath: /var/log