update config sample, marshal tags from toml

config.go

@@ -30,7 +30,7 @@ func (d *Duration) UnmarshalTOML(b []byte) error {
 	return nil
 }
 
-// Config specifies the URL/user/password for the database that telegraf
+// Config specifies the outputs that telegraf
 // will be logging to, as well as all the plugins that the user has
 // specified
 type Config struct {
@@ -200,6 +200,7 @@ func LoadConfig(path string) (*Config, error) {
 	}
 
 	c := &Config{
+		Tags:    make(map[string]string),
 		plugins: make(map[string]*ast.Table),
 		outputs: make(map[string]*ast.Table),
 	}
@@ -213,6 +214,10 @@ func LoadConfig(path string) (*Config, error) {
 		switch name {
 		case "agent":
 			c.agent = subtbl
+		case "tags":
+			if err := toml.UnmarshalTable(subtbl, c.Tags); err != nil {
+				return nil, errInvalidConfig
+			}
 		case "outputs":
 			for outputName, outputVal := range subtbl.Fields {
 				outputSubtbl, ok := outputVal.(*ast.Table)

etc/config.sample.toml

@@ -22,8 +22,11 @@
 # NOTE: The configuration has a few required parameters. They are marked
 # with 'required'. Be sure to edit those to make this configuration work.
 
+# OUTPUTS
+[outputs]
+
 # Configuration for influxdb server to send metrics to
-[influxdb]
+[outputs.influxdb]
 # The full HTTP endpoint URL for your InfluxDB instance
 url = "http://localhost:8086" # required.
 
@@ -35,11 +38,9 @@ database = "telegraf" # required.
 
 # Set the user agent for the POSTs (can be useful for log differentiation)
 # user_agent = "telegraf"
-# tags = { "dc": "us-east-1" }
 
 # Tags can also be specified via a normal map, but only one form at a time:
-
+# [tags]
-# [influxdb.tags]
 # dc = "us-east-1"
 
 # Configuration for telegraf itself

testdata/influx.toml

@@ -3,12 +3,15 @@ interval = "5s"
 http = ":11213"
 debug = true
 
-[influxdb]
+[outputs]
+[outputs.influxdb]
 url = "http://localhost:8086"
 username = "root"
 password = "root"
 database = "telegraf"
-tags = { dc = "us-phx-1" }
+
+[tags]
+dc = "us-phx-1"
 
 [redis]
 address = ":6379"