Apply Doc Cloud changes to version 1.2.0

Backport fix for host name.
https://github.com/splunk/splunk-connect-for-kubernetes/commit/771bdd60ff41fa34fdb40d6a12268d08b2eefd16

Apply Doc Cloud changes to version 1.1.0

Log different namespaces to different indexes.
Add environment and region to host name.

V1.0.2

Customize for Doc Cloud.

Use Kubernetes mounted ca_file.
Filter out blank lines.