Update changelog and add basic nsq input readme

CHANGELOG.md

@@ -32,6 +32,7 @@
 - [#4838](https://github.com/influxdata/telegraf/pull/4838): Add telegraf version to User-Agent header.
 - [#4864](https://github.com/influxdata/telegraf/pull/4864): Use DescribeStreamSummary in place of ListStreams in kinesis output.
 - [#4852](https://github.com/influxdata/telegraf/pull/4852): Add ability to specify bytes options as strings with units.
+- [#3903](https://github.com/influxdata/telegraf/pull/3903): Add support for TLS configuration in NSQ input.
 
 ## v1.8.3 [unreleased]
 

plugins/inputs/nsq/README.md

@@ -0,0 +1,17 @@
+# NSQ Input Plugin
+
+### Configuration:
+
+```toml
+# Description
+[[inputs.nsq]]
+  ## An array of NSQD HTTP API endpoints
+  endpoints  = ["http://localhost:4151"]
+
+  ## Optional TLS Config
+  # tls_ca = "/etc/telegraf/ca.pem"
+  # tls_cert = "/etc/telegraf/cert.pem"
+  # tls_key = "/etc/telegraf/key.pem"
+  ## Use TLS but skip chain & host verification
+  # insecure_skip_verify = false
+```

plugins/inputs/nsq/nsq.go

@@ -48,12 +48,12 @@ var sampleConfig = `
   ## An array of NSQD HTTP API endpoints
   endpoints  = ["http://localhost:4151"]
 
-  ## Or using HTTPS endpoint
-  endpoints            = ["https://localhost:4152"]
-  tls_cert             = "/path/to/client-cert.pem"
-  tls_key              = "/path/to/client-key.pem"
-  tls_ca               = "/path/to/ca.pem"
-  insecure_skip_verify = false
+  ## Optional TLS Config
+  # tls_ca = "/etc/telegraf/ca.pem"
+  # tls_cert = "/etc/telegraf/cert.pem"
+  # tls_key = "/etc/telegraf/key.pem"
+  ## Use TLS but skip chain & host verification
+  # insecure_skip_verify = false
 `
 
 const (