feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

checks/crkn/rkn_init.go

@@ -0,0 +1,61 @@
+package crkn
+
+import (
+	"errors"
+	"time"
+
+	"rsgit.ru/rsmon/rsmon/app/models"
+)
+
+// Perform checks if a domain or IP is in the RKN registry
+func Perform(m *models.Monitor) *Result {
+	result := &Result{}
+	start := time.Now()
+
+	blocked, err := models.IsRknDomainBlocked(m.Host)
+	if err != nil {
+		failResult(err, result, start)
+		return result
+	}
+	if blocked {
+		testResult(true, result, "Domain is contained in RKN registry", start)
+		return result
+	}
+
+	for _, dnsRecord := range m.DNSRecords {
+		if dnsRecord.Kind != "A" && dnsRecord.Kind != "AAAA" {
+			continue
+		}
+		findIP, err := models.IsRknIPBlocked(dnsRecord.Value.Inet.String())
+		if err != nil {
+			failResult(err, result, start)
+			return result
+		}
+		if findIP {
+			testResult(true, result, "IP is contained in RKN registry", start)
+			return result
+		}
+	}
+
+	testResult(false, result, "", start)
+	return result
+}
+
+func failResult(err error, result *Result, start time.Time) {
+	result.State = "FAIL"
+	result.Error = err
+	result.Duration = time.Since(start)
+}
+
+func testResult(find bool, result *Result, msg string, start time.Time) {
+	if find {
+		result.State = "ERR"
+		result.Error = errors.New(msg)
+		result.Duration = time.Since(start)
+		result.Warnings = append(result.Warnings, "Resource is blocked in Russia according to RKN registry")
+	} else {
+		result.State = "OK"
+		result.Duration = time.Since(start)
+		result.Infos = append(result.Infos, "Resource is not in RKN registry")
+	}
+}