Extract depresolver interface

close #908

- extracting interface GslbResolver
- GslbResolver Mock
- refactor Reconciler

Signed-off-by: kuritka <kuritka@gmail.com>

Makefile

@@ -382,6 +382,7 @@ mocks:
 	mockgen -source=controllers/providers/assistant/assistant.go -destination=controllers/providers/assistant/assistant_mock.go -package=assistant
 	mockgen -source=controllers/providers/dns/dns.go -destination=controllers/providers/dns/dns_mock.go -package=dns
 	mockgen -source=controllers/providers/dns/infoblox-client.go -destination=controllers/providers/dns/infoblox-client_mock.go -package=dns
+	mockgen -source=controllers/depresolver/resolver.go -destination=controllers/depresolver/resolver_mock.go -package=depresolver
 	mockgen -destination=controllers/providers/dns/infoblox-connection_mock.go -package=dns github.com/infobloxopen/infoblox-go-client IBConnector
 	$(call golic)
 

controllers/depresolver/resolver.go

@@ -0,0 +1,36 @@
+package depresolver
+
+/*
+Copyright 2022 The k8gb Contributors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+Generated by GoLic, for more details see: https://github.com/AbsaOSS/golic
+*/
+
+import (
+	"context"
+
+	k8gbv1beta1 "github.com/k8gb-io/k8gb/api/v1beta1"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+)
+
+type GslbResolver interface {
+	// ResolveOperatorConfig executes once. It reads operator's configuration
+	// from environment variables into &Config and validates
+	ResolveOperatorConfig() (*Config, error)
+
+	// ResolveGslbSpec fills Gslb by spec values. It executes always, when gslb is initialised.
+	// If spec value is not defined, it will use the default value. Function returns error if input is invalid.
+	ResolveGslbSpec(ctx context.Context, gslb *k8gbv1beta1.Gslb, client client.Client) error
+}

controllers/gslb_controller.go

@@ -50,7 +50,7 @@ type GslbReconciler struct {
 	client.Client
 	Scheme      *runtime.Scheme
 	Config      *depresolver.Config
-	DepResolver *depresolver.DependencyResolver
+	DepResolver depresolver.GslbResolver
 	DNSProvider dns.Provider
 }