Add a debug flag (#3)

app/options/options.go

@@ -28,13 +28,15 @@ type Options struct {
 	StorageDir         string
 	ListenEp           string
 	EnableTls          bool
+	Debug              bool
 }
 
 func NewOptions() (*Options){
 	o := Options{
 		"/var/tmp/k8s-dqlite",
 		"tcp://127.0.0.1:12379",
 		true,
+		false,
 	}
 	return &o
 }

app/server.go

@@ -20,9 +20,9 @@ import (
 	"fmt"
 	"github.com/canonical/k8s-dqlite/app/options"
 	"github.com/canonical/kvsql-dqlite/server"
+	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"golang.org/x/sys/unix"
-	"log"
 	"os"
 	"os/signal"
 	"time"
@@ -39,7 +39,9 @@ var dqliteCmd = &cobra.Command{
 	// has an action associated with it:
 	Run: func(cmd *cobra.Command, args []string) {
 		log.Println("Starting dqlite")
-
+		if opts.Debug == true {
+			log.SetLevel(log.TraceLevel)
+		}
 		server, err := server.New(
 			opts.StorageDir,
 			opts.ListenEp,
@@ -81,4 +83,5 @@ func init() {
 	dqliteCmd.Flags().StringVar(&opts.StorageDir, "storage-dir", opts.StorageDir, "directory with the dqlite datastore")
 	dqliteCmd.Flags().StringVar(&opts.ListenEp, "listen", opts.ListenEp, "endpoint where dqlite should listen to")
 	dqliteCmd.Flags().BoolVar(&opts.EnableTls, "enable-tls", opts.EnableTls, "enable TlS")
+	dqliteCmd.Flags().BoolVar(&opts.Debug, "debug", opts.Debug, "debug logs")
 }

go.mod

@@ -4,6 +4,7 @@ go 1.16
 
 require (
 	github.com/canonical/kvsql-dqlite v0.0.0-20210513073226-3dab903dba87
+	github.com/sirupsen/logrus v1.6.0
 	github.com/spf13/cobra v1.0.0
 	github.com/spf13/pflag v1.0.5
 	golang.org/x/sys v0.0.0-20200622214017-ed371f2e16b4

vendor/modules.txt

@@ -54,6 +54,7 @@ github.com/mattn/go-sqlite3
 # github.com/pkg/errors v0.9.1
 github.com/pkg/errors
 # github.com/sirupsen/logrus v1.6.0
+## explicit
 github.com/sirupsen/logrus
 # github.com/spf13/cobra v1.0.0
 ## explicit