Add aws config in helm values (#303)

##### ISSUE TYPE
<!--- Pick one below and delete the rest: -->
 - Feature Pull Request

##### SUMMARY
<!--- Describe the change, including rationale and design decisions -->
adding config values for helm deployments
<!---
If you are fixing an existing issue, please include "Fixes #nnn" in your
PR comment; and describe briefly what the change does.
-->
adding config values for helm deployments
<!--- Please list dependencies added with your change also -->

Fixes #XXX

comm_config.yaml

@@ -20,10 +20,8 @@ communications:
   elasticsearch:
     enabled: false
     awsSigning:
-      enabled: false                             # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS encvironment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
+      enabled: false                             # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
       awsRegion: "us-east-1"                     # AWS region where Elasticsearch is deployed
-      awsAccessKey: ""
-      awsSecretKey: ""
     server: 'ELASTICSEARCH_ADDRESS'                                    # e.g https://example.com:9243
     username: 'ELASTICSEARCH_USERNAME'                                 # Basic Auth
     password: 'ELASTICSEARCH_PASSWORD'

deploy-all-in-one-tls.yaml

@@ -258,9 +258,12 @@ stringData:
 
       # Settings for ELS
       elasticsearch:
-        enable: false
-        server: 'ELASTICSEARCH_ADDRESS'              # e.g https://example.com:9243
-        username: 'ELASTICSEARCH_USERNAME'
+        enabled: false
+        awsSigning:
+          enabled: false                            # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
+          awsRegion: "us-east-1"                    # AWS region where Elasticsearch is deployed
+        server: 'ELASTICSEARCH_ADDRESS'             # e.g https://example.com:9243
+        username: 'ELASTICSEARCH_USERNAME'          # Basic Auth
         password: 'ELASTICSEARCH_PASSWORD'
         # ELS index settings
         index:
@@ -268,7 +271,7 @@ stringData:
           type: botkube-event
           shards: 1
           replicas: 0
-
+    
       # Settings for Webhook
       webhook:
         enabled: false

deploy-all-in-one.yaml

@@ -258,9 +258,12 @@ stringData:
 
       # Settings for ELS
       elasticsearch:
-        enable: false
+        enabled: false
+        awsSigning:
+          enabled: false                             # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
+          awsRegion: "us-east-1"                     # AWS region where Elasticsearch is deployed
         server: 'ELASTICSEARCH_ADDRESS'              # e.g https://example.com:9243
-        username: 'ELASTICSEARCH_USERNAME'
+        username: 'ELASTICSEARCH_USERNAME'           # Basic Auth
         password: 'ELASTICSEARCH_PASSWORD'
         # ELS index settings
         index:
@@ -268,7 +271,7 @@ stringData:
           type: botkube-event
           shards: 1
           replicas: 0
-
+    
       # Settings for Webhook
       webhook:
         enabled: false

helm/botkube/templates/serviceaccount.yaml

@@ -2,6 +2,10 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: {{ include "botkube.serviceAccountName" . }}
+  {{- if .Values.serviceAccount.annotations }}
+  annotations:
+{{ toYaml .Values.serviceAccount.annotations | indent 4 }}
+  {{- end }}
   labels:
     app.kubernetes.io/name: {{ include "botkube.name" . }}
     helm.sh/chart: {{ include "botkube.chart" . }}

helm/botkube/values.yaml

@@ -267,8 +267,11 @@ communications:
   # Settings for ELS
   elasticsearch:
     enabled: false
-    server: 'ELASTICSEARCH_ADDRESS'              # e.g https://example.com:9243
-    username: 'ELASTICSEARCH_USERNAME'
+    awsSigning:
+      enabled: false                             # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
+      awsRegion: "us-east-1"                     # AWS region where Elasticsearch is deployed
+    server: 'ELASTICSEARCH_ADDRESS'                                    # e.g https://example.com:9243
+    username: 'ELASTICSEARCH_USERNAME'                                 # Basic Auth
     password: 'ELASTICSEARCH_PASSWORD'
     # ELS index settings
     index:
@@ -330,3 +333,5 @@ serviceAccount:
   # The name of the service account to use.
   # If not set and create is true, a name is generated using the fullname template
   #name:
+  # annotations for the service account
+  annotations: {}