feat: add gcore dns-01 applicant

internal/pkg/core/applicant/acme-dns-01/lego-providers/gcore/gcore.go

@@ -0,0 +1,37 @@
+package gcore
+
+import (
+	"errors"
+	"time"
+
+	"github.com/go-acme/lego/v4/challenge"
+	"github.com/go-acme/lego/v4/providers/dns/gcore"
+)
+
+type GcoreApplicantConfig struct {
+	ApiToken              string `json:"apiToken"`
+	DnsPropagationTimeout int32  `json:"dnsPropagationTimeout,omitempty"`
+	DnsTTL                int32  `json:"dnsTTL,omitempty"`
+}
+
+func NewChallengeProvider(config *GcoreApplicantConfig) (challenge.Provider, error) {
+	if config == nil {
+		return nil, errors.New("config is nil")
+	}
+
+	providerConfig := gcore.NewDefaultConfig()
+	providerConfig.APIToken = config.ApiToken
+	if config.DnsPropagationTimeout != 0 {
+		providerConfig.PropagationTimeout = time.Duration(config.DnsPropagationTimeout) * time.Second
+	}
+	if config.DnsTTL != 0 {
+		providerConfig.TTL = int(config.DnsTTL)
+	}
+
+	provider, err := gcore.NewDNSProviderConfig(providerConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	return provider, nil
+}