Support setting gzip_compression flag for log forwarder (#794)

Co-authored-by: Tony Scott <tony.scott@nisc.coop>

Author: toscott

helm-chart/splunk-connect-for-kubernetes/charts/splunk-kubernetes-logging/templates/configMap.yaml

@@ -384,6 +384,9 @@ data:
  {{- with or .Values.splunk.hec.port .Values.global.splunk.hec.port }}
  hec_port {{ . }}
  {{- end }}
+ {{- with or .Values.splunk.hec.gzip_compression .Values.global.splunk.hec.gzip_compression }}
+ gzip_compression {{ . }}
+ {{- end }}
  hec_token "#{ENV['SPLUNK_HEC_TOKEN']}"
  index_key splunk_index
  insecure_ssl {{ or .Values.splunk.hec.insecureSSL .Values.global.splunk.hec.insecureSSL | default false }}

helm-chart/splunk-connect-for-kubernetes/charts/splunk-kubernetes-logging/values.yaml

@@ -99,6 +99,8 @@ splunk:
  caFile:
  # Indicates if 4xx errors should consume chunk. If set to true, plugin will not retry sending chunk to splunk when 4xx error occurs. (Default: true)
  consume_chunk_on_4xx_errors:
+ # gzip_compression - boolean. If true, data is compressed before transfer to splunk. (Default: false)
+ gzip_compression:
  # Configurations for Ingest API
  ingest_api:
  # serviceClientIdentifier is a string, the client identifier is used to make requests to the ingest API with authorization.
@@ -509,6 +511,7 @@ global:
  caFile:
  fullUrl:
  consume_chunk_on_4xx_errors:
+ gzip_compression: false
  kubernetes:
  clusterName: "cluster_name"
  prometheus_enabled: true

helm-chart/splunk-connect-for-kubernetes/values.yaml

@@ -205,6 +205,8 @@ splunk-kubernetes-logging:
  caFile:
  # Indicates if 4xx errors should consume chunk. If set to true, plugin will not retry sending chunk to splunk when 4xx error occurs. (Default: true)
  consume_chunk_on_4xx_errors:
+ # gzip_compression - boolean. If true, data is compressed before transfer to splunk. (Default: true) - Applies only to logging.
+ gzip_compression:
  # Configurations for Ingest API
  ingest_api:
  # serviceClientIdentifier is a string, the client identifier is used to make requests to the ingest API with authorization.