use the config file

go.mod

@@ -2,4 +2,4 @@ module tildegit.org/southlondon/admin
 
 go 1.17
 
-require gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+require gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b

go.sum

@@ -1,3 +1,4 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -3,13 +3,55 @@ package main
 import (
 	"fmt"
 	"html"
+	"io/ioutil"
+	"log"
 	"net/http"
+
+	"gopkg.in/yaml.v3"
 )
 
+type ServerConfig struct {
+	Name     string
+	Homepage string
+}
+type AdminConfig struct {
+	WebRoot string
+}
+type AuthConfig struct {
+	GiteaURL        string
+	AuthorizedUsers []string
+}
+type Config struct {
+	Server ServerConfig
+	Admin  AdminConfig
+	Auth   AuthConfig
+}
+
+var config = new(Config)
+
+func loadConfig() (err error) {
+	configfile, err := ioutil.ReadFile("config.yml")
+	if err != nil {
+		return err
+	}
+
+	err = yaml.Unmarshal(configfile, &config)
+	return err
+}
+
 func main() {
+	err := loadConfig()
+	if err != nil {
+		log.Fatal("oh no !!!")
+	}
+
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 		fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))
 	})
 
-	http.ListenAndServe("0.0.0.0:8080", nil)
+	err = http.ListenAndServe(":8080", nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+
 }