Add nginx exec

backend/internal/nginx/control.go

@@ -0,0 +1,13 @@
+package nginx
+
+import "npm/internal/entity/host"
+
+// ConfigureHost will attempt to write nginx conf and reload nginx
+func ConfigureHost(h host.Model) error {
+	// nolint: errcheck, gosec
+	h.Expand([]string{"certificate"})
+
+	// nolint: errcheck, gosec
+	reloadNginx()
+	return nil
+}

backend/internal/nginx/exec.go

@@ -0,0 +1,43 @@
+package nginx
+
+import (
+	"fmt"
+	"os/exec"
+
+	"npm/internal/logger"
+)
+
+func reloadNginx() error {
+	_, err := shExec([]string{"-s", "reload"})
+	return err
+}
+
+func getNginxFilePath() (string, error) {
+	path, err := exec.LookPath("nginx")
+	if err != nil {
+		return path, fmt.Errorf("Cannot find nginx execuatable script in PATH")
+	}
+	return path, nil
+}
+
+// shExec executes nginx with arguments
+func shExec(args []string) (string, error) {
+	ng, err := getNginxFilePath()
+	if err != nil {
+		logger.Error("NginxError", err)
+		return "", err
+	}
+
+	logger.Debug("CMD: %s %v", ng, args)
+	// nolint: gosec
+	c := exec.Command(ng, args...)
+
+	b, e := c.Output()
+
+	if e != nil {
+		logger.Error("NginxError", fmt.Errorf("Command error: %s -- %v\n%+v", ng, args, e))
+		logger.Warn(string(b))
+	}
+
+	return string(b), e
+}