Write host template on save

backend/internal/nginx/control.go

@@ -1,13 +1,51 @@
 package nginx
 
-import "npm/internal/entity/host"
+import (
+	"fmt"
+
+	"npm/internal/config"
+	"npm/internal/entity/host"
+	"npm/internal/logger"
+)
 
 // ConfigureHost will attempt to write nginx conf and reload nginx
 func ConfigureHost(h host.Model) error {
 	// nolint: errcheck, gosec
-	h.Expand([]string{"certificate"})
+	h.Expand([]string{"certificate", "hosttemplate"})
+
+	data := TemplateData{
+		ConfDir:     fmt.Sprintf("%s/nginx/hosts", config.Configuration.DataFolder),
+		DataDir:     config.Configuration.DataFolder,
+		CertsDir:    config.Configuration.Acmesh.CertHome,
+		Host:        &h,
+		Certificate: h.Certificate,
+	}
+
+	filename := fmt.Sprintf("%s/host_%d.conf", data.ConfDir, h.ID)
+
+	// Write the config to disk
+	err := writeTemplate(filename, h.HostTemplate.Template, data)
+	if err != nil {
+		// this configuration failed somehow
+		h.Status = host.StatusError
+		h.ErrorMessage = fmt.Sprintf("Template generation failed: %s", err.Error())
+		logger.Debug(h.ErrorMessage)
+		return h.Save(true)
+	}
 
 	// nolint: errcheck, gosec
-	reloadNginx()
-	return nil
+	if err := reloadNginx(); err != nil {
+		// reloading nginx failed, likely due to this host having a problem
+		h.Status = host.StatusError
+		h.ErrorMessage = fmt.Sprintf("Nginx configuation error: %s", err.Error())
+		writeConfigFile(filename, fmt.Sprintf("# %s", h.ErrorMessage))
+		logger.Debug(h.ErrorMessage)
+	} else {
+		// All good
+		h.Status = host.StatusOK
+		h.ErrorMessage = ""
+		logger.Debug("ConfigureHost OK: %+v", h)
+	}
+
+	return h.Save(true)
 }