Fixed missing files

Dockerfile

@@ -16,8 +16,7 @@ RUN npm install
 COPY assets /app/assets
 RUN npm run build
 
-FROM alpine:3.7
-WORKDIR /
+FROM alpine
 COPY --from=go_builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 COPY --from=go_builder /go/src/app/app /app
 COPY templates /templates

main.go

@@ -29,7 +29,7 @@ func NewConfigFromEnv() Config {
 }
 
 func formatTemplate(w http.ResponseWriter, templateName string, data interface{}) error {
-	pageTemplate, err := template.ParseFiles(fmt.Sprintf("templates/%s", templateName))
+	pageTemplate, err := template.ParseFiles(fmt.Sprintf("templates/%s.html", templateName))
 	if err != nil {
 		return err
 	}