add logrus and additional log outputs

go.mod

@@ -0,0 +1,5 @@
+module dev.ixab.de/da/kamojiserv
+
+go 1.16
+
+require github.com/sirupsen/logrus v1.8.1

go.sum

@@ -0,0 +1,10 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
+github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

main.go

@@ -4,11 +4,12 @@ import (
 	"bufio"
 	"flag"
 	"html/template"
-	"log"
 	"math/rand"
 	"net/http"
 	"os"
 	"time"
+
+	log "github.com/sirupsen/logrus"
 )
 
 type Kamoji struct {
@@ -56,7 +57,9 @@ func main() {
 		if time.Now().Unix()-timestamp > 60 {
 			randomNumber = rand.Intn(len(allk.Kamojis))
 			timestamp = time.Now().Unix()
+			log.Println("rotating kamoji")
 		}
+		log.Println("served kamoji to " + r.RemoteAddr)
 		k := allk.Kamojis[randomNumber]
 		tmpl.Execute(w, k)
 	})