move tags to influxdb struct, update all sample configs

.gitignore

@@ -1,3 +1,4 @@
 pkg/
 tivan
 .vagrant
+telegraf

agent.go

@@ -57,18 +57,12 @@ func NewAgent(config *Config) (*Agent, error) {
 		agent.Hostname = hostname
 	}
 
-	if config.Tags == nil {
-		config.Tags = map[string]string{}
-	}
-
-	config.Tags["host"] = agent.Hostname
-
 	return agent, nil
 }
 
 func (a *Agent) Connect() error {
 	for _, o := range a.outputs {
-		err := o.output.Connect()
+		err := o.output.Connect(a.Hostname)
 		if err != nil {
 			return err
 		}
@@ -157,7 +151,6 @@ func (a *Agent) crankParallel() error {
 	close(points)
 
 	var bp BatchPoints
-	bp.Tags = a.Config.Tags
 	bp.Time = time.Now()
 
 	for sub := range points {
@@ -181,7 +174,6 @@ func (a *Agent) crank() error {
 		}
 	}
 
-	acc.Tags = a.Config.Tags
 	acc.Time = time.Now()
 
 	return a.flush(&acc)
@@ -202,7 +194,6 @@ func (a *Agent) crankSeparate(shutdown chan struct{}, plugin *runningPlugin) err
 			return err
 		}
 
-		acc.Tags = a.Config.Tags
 		acc.Time = time.Now()
 
 		err = a.flush(&acc)

cmd/telegraf/telegraf.go

@@ -102,7 +102,7 @@ func main() {
 		close(shutdown)
 	}()
 
-	log.Print("InfluxDB Agent running")
+	log.Print("Telegraf Agent running")
 	log.Printf("Loaded outputs: %s", strings.Join(outputs, " "))
 	log.Printf("Loaded plugins: %s", strings.Join(plugins, " "))
 	if ag.Debug {
@@ -111,10 +111,6 @@ func main() {
 			ag.Interval, ag.Debug, ag.Hostname)
 	}
 
-	if len(outputs) > 0 {
-		log.Printf("Tags enabled: %v", config.ListTags())
-	}
-
 	if *fPidfile != "" {
 		f, err := os.Create(*fPidfile)
 		if err != nil {

config.go

@@ -34,8 +34,6 @@ func (d *Duration) UnmarshalTOML(b []byte) error {
 // will be logging to, as well as all the plugins that the user has
 // specified
 type Config struct {
-	Tags map[string]string
-
 	agent   *ast.Table
 	plugins map[string]*ast.Table
 	outputs map[string]*ast.Table
@@ -200,7 +198,6 @@ 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),
 	}
@@ -214,10 +211,6 @@ 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)
@@ -234,20 +227,6 @@ func LoadConfig(path string) (*Config, error) {
 	return c, nil
 }
 
-// ListTags returns a string of tags specified in the config,
-// line-protocol style
-func (c *Config) ListTags() string {
-	var tags []string
-
-	for k, v := range c.Tags {
-		tags = append(tags, fmt.Sprintf("%s=%s", k, v))
-	}
-
-	sort.Strings(tags)
-
-	return strings.Join(tags, " ")
-}
-
 type hasConfig interface {
 	BasicConfig() string
 }
@@ -280,8 +259,11 @@ var header = `# Telegraf configuration
 # 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.
 
@@ -298,12 +280,8 @@ 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:
 
-# [influxdb.tags]
-# dc = "us-east-1"
+# tags = { "dc" = "us-east-1" }
 
 # Configuration for telegraf itself
 # [agent]

etc/config.sample.toml

@@ -39,9 +39,7 @@ database = "telegraf" # required.
 # Set the user agent for the POSTs (can be useful for log differentiation)
 # user_agent = "telegraf"
 
-# Tags can also be specified via a normal map, but only one form at a time:
-# [tags]
-# dc = "us-east-1"
+# tags = { "dc" = "us-east-1" }
 
 # Configuration for telegraf itself
 # [agent]

outputs/influxdb/influxdb.go

@@ -13,11 +13,12 @@ type InfluxDB struct {
 	Password  string
 	Database  string
 	UserAgent string
+	Tags      map[string]string
 
 	conn *client.Client
 }
 
-func (i *InfluxDB) Connect() error {
+func (i *InfluxDB) Connect(host string) error {
 	u, err := url.Parse(i.URL)
 	if err != nil {
 		return err
@@ -34,12 +35,18 @@ func (i *InfluxDB) Connect() error {
 		return err
 	}
 
+	if i.Tags == nil {
+		i.Tags = make(map[string]string)
+	}
+	i.Tags["host"] = host
+
 	i.conn = c
 	return nil
 }
 
 func (i *InfluxDB) Write(bp client.BatchPoints) error {
 	bp.Database = i.Database
+	bp.Tags = i.Tags
 	if _, err := i.conn.Write(bp); err != nil {
 		return err
 	}

outputs/registry.go

@@ -5,7 +5,7 @@ import (
 )
 
 type Output interface {
-	Connect() error
+	Connect(string) error
 	Write(client.BatchPoints) error
 }
 

testdata/influx.toml

@@ -9,9 +9,7 @@ url = "http://localhost:8086"
 username = "root"
 password = "root"
 database = "telegraf"
-
-[tags]
-dc = "us-phx-1"
+tags = { "dc" = "us-phx-1" }
 
 [redis]
 address = ":6379"