Add some tracing to see if papertrail gets loaded

Dockerfile

@@ -17,3 +17,9 @@ RUN curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
 # setup the app dir/working directory
 RUN mkdir -p /go/src/github.com/nanopack/logvac
 WORKDIR /go/src/github.com/nanopack/logvac
+
+# copy the source
+COPY . .
+
+# fetch deps
+RUN make deps

drain/drain.go

@@ -70,6 +70,7 @@ func Init() error {
 	if err != nil {
 		return fmt.Errorf("Failed to load drains - %s", err)
 	}
+	config.Log.Info("3rd-party drains initialized")
 
 	return nil
 }
@@ -153,11 +154,13 @@ func publishInit() error {
 
 // InitDrains loads and configures drains from a config file.
 func InitDrains() error {
+	config.Log.Info("loading drains from db")
 	drainDB, err := NewBoltArchive(filepath.Join(dbDir, "drains.bolt"))
 	if err != nil {
 		return fmt.Errorf("Failed to initialize drain db - %s", err)
 	}
 	defer drainDB.Close()
+	config.Log.Info("drains loaded from db")
 
 	tDrains := make(map[string]logvac.Drain, 0)
 	err = drainDB.Get("drainConfig", "drains", &tDrains)
@@ -169,7 +172,7 @@ func InitDrains() error {
 	for i := range tDrains {
 		err := AddDrain(tDrains[i])
 		if err != nil {
-			return fmt.Errorf("Failed to load drain 'papertrail' - %s", err)
+			return fmt.Errorf("Failed to load 3rd-party drain '%s' - %s", i, err)
 		}
 	}
 
@@ -179,6 +182,8 @@ func InitDrains() error {
 // AddDrain starts draining to a third party log service.
 func AddDrain(d logvac.Drain) error {
 
+	config.Log.Info("Adding drain '%s'", d.Type)
+
 	switch d.Type {
 	case "papertrail":
 		// if it already exists, close it and create a new one
@@ -196,6 +201,7 @@ func AddDrain(d logvac.Drain) error {
 		}
 		drains["papertrail"] = pTrail
 		drainCfg["papertrail"] = d
+		config.Log.Info("3rd-party drain 'papertrail' initialized")
 	// case "datadog":
 	// 	// if it already exists, close it and create a new one
 	// 	if _, ok := drains["datadog"]; ok {

drain/papertrail.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"net"
 
+	"github.com/nanopack/logvac/config"
 	"github.com/nanopack/logvac/core"
 )
 
@@ -24,12 +25,14 @@ func NewPapertrailClient(uri string) (*Papertrail, error) {
 	if err != nil {
 		return nil, fmt.Errorf("Failed to dial papertrail - %s", err.Error())
 	}
+
+	config.Log.Info("Connection to papertrail endpoint established")
 
 	return &Papertrail{conn}, nil
 }
 
 // Init initializes a connection to mist
-func (p Papertrail) Init() error {
+func (p *Papertrail) Init() error {
 
 	// add drain
 	logvac.AddDrain("papertrail", p.Publish)
@@ -38,7 +41,7 @@ func (p Papertrail) Init() error {
 }
 
 // Publish utilizes mist's Publish to "drain" a log message
-func (p Papertrail) Publish(msg logvac.Message) {
+func (p *Papertrail) Publish(msg logvac.Message) {
 	p.Conn.Write(msg.Raw)
 }