Make UI logo URL configurable

Makefile

@@ -10,7 +10,9 @@ GIT_COMMIT:=$(shell git describe --dirty --always)
 VERSION:=$(shell grep 'VERSION' pkg/version/version.go | awk '{ print $$4 }' | tr -d '"')
 
 run:
-	GO111MODULE=on go run -ldflags "-s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION=$(GIT_COMMIT)" cmd/podinfo/* --level=debug --grpc-port=9999 --backend-url=https://httpbin.org/status/401 --backend-url=https://httpbin.org/status/500
+	GO111MODULE=on go run -ldflags "-s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION=$(GIT_COMMIT)" cmd/podinfo/* \
+	--level=debug --grpc-port=9999 --backend-url=https://httpbin.org/status/401 --backend-url=https://httpbin.org/status/500 \
+	--ui-logo=https://media.giphy.com/media/l0ExbNdlJFGRphMR2/giphy.gif
 
 test:
 	GO111MODULE=on go test -v -race ./...

cmd/podinfo/main.go

@@ -36,7 +36,8 @@ func main() {
 	fs.String("config-path", "", "config dir path")
 	fs.String("config", "config.yaml", "config file name")
 	fs.String("ui-path", "./ui", "UI local path")
-	fs.String("ui-color", "blue", "UI color")
+	fs.String("ui-logo", "", "UI logo")
+	fs.String("ui-color", "cyan", "UI color")
 	fs.String("ui-message", fmt.Sprintf("greetings from podinfo v%v", version.VERSION), "UI message")
 	fs.Bool("random-delay", false, "between 0 and 5 seconds random delay")
 	fs.Bool("random-error", false, "1/3 chances of a random response error")
@@ -64,6 +65,7 @@ func main() {
 	viper.RegisterAlias("backendUrl", "backend-url")
 	hostname, _ := os.Hostname()
 	viper.SetDefault("jwt-secret", "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9")
+	viper.SetDefault("ui-logo", "https://d33wubrfki0l68.cloudfront.net/33a12d8be0bc50be4738443101616e968c7afb8f/cba76/images/scalable.png")
 	viper.Set("hostname", hostname)
 	viper.Set("version", version.VERSION)
 	viper.Set("revision", version.REVISION)

pkg/api/index.go

@@ -23,8 +23,10 @@ func (s *Server) indexHandler(w http.ResponseWriter, r *http.Request) {
 
 	data := struct {
 		Title string
+		Logo  string
 	}{
 		Title: s.config.Hostname,
+		Logo:  s.config.UILogo,
 	}
 
 	if err := tmpl.Execute(w, data); err != nil {

pkg/api/info.go

@@ -22,6 +22,7 @@ func (s *Server) infoHandler(w http.ResponseWriter, r *http.Request) {
 		Hostname:     s.config.Hostname,
 		Version:      version.VERSION,
 		Revision:     version.REVISION,
+		Logo:         s.config.UILogo,
 		Color:        s.config.UIColor,
 		Message:      s.config.UIMessage,
 		GOOS:         runtime.GOOS,
@@ -39,6 +40,7 @@ type RuntimeResponse struct {
 	Version      string `json:"version"`
 	Revision     string `json:"revision"`
 	Color        string `json:"color"`
+	Logo         string `json:"logo"`
 	Message      string `json:"message"`
 	GOOS         string `json:"goos"`
 	GOARCH       string `json:"goarch"`

pkg/api/server.go

@@ -50,6 +50,7 @@ type Config struct {
 	HttpServerTimeout         time.Duration `mapstructure:"http-server-timeout"`
 	HttpServerShutdownTimeout time.Duration `mapstructure:"http-server-shutdown-timeout"`
 	BackendURL                []string      `mapstructure:"backend-url"`
+	UILogo                    string        `mapstructure:"ui-logo"`
 	UIMessage                 string        `mapstructure:"ui-message"`
 	UIColor                   string        `mapstructure:"ui-color"`
 	UIPath                    string        `mapstructure:"ui-path"`

ui/vue.html

@@ -26,7 +26,7 @@
             justify-center
             class="white--text"
           >
-            <img src="https://d33wubrfki0l68.cloudfront.net/33a12d8be0bc50be4738443101616e968c7afb8f/cba76/images/scalable.png" alt="kubernetes" height="200">
+            <img :src="info.logo" alt="kubernetes" height="200">
             <h1 class="white--text mb-2 display-1 text-xs-center">${ info.message }</h1>
             <div class="subheading mb-3 text-xs-center">Served by <b>${ info.hostname }</b></div>
             <v-btn
@@ -108,7 +108,8 @@
                     }
                 }
                 self.info = data
-                self.info.color = 'cyan'
+                self.info.color = data.color
+                self.info.logo = data.logo
                 document.title = data.hostname
                 let verColor = (parseInt(data.version.split('.').reverse()[0], 10)  % 2 === 0)
                         ? 'blue'