/
handlers.go
152 lines (119 loc) · 6.53 KB
/
handlers.go
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package main
import (
"net/http"
v1alpha12 "github.com/kyma-project/kyma/components/application-operator/pkg/client/clientset/versioned/typed/applicationconnector/v1alpha1"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/specification/rafter"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/specification/rafter/upload"
"k8s.io/apimachinery/pkg/runtime/schema"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/certificates"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/secrets/strategy"
"github.com/gofrs/uuid"
"github.com/gorilla/mux"
"github.com/kyma-project/kyma/components/application-operator/pkg/client/clientset/versioned"
"github.com/kyma-project/kyma/components/application-registry/internal/apperrors"
"github.com/kyma-project/kyma/components/application-registry/internal/externalapi"
"github.com/kyma-project/kyma/components/application-registry/internal/k8sconsts"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/accessservice"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/applications"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/istio"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/secrets"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/serviceapi"
"github.com/kyma-project/kyma/components/application-registry/internal/metadata/specification"
metauuid "github.com/kyma-project/kyma/components/application-registry/internal/metadata/uuid"
istioclient "github.com/kyma-project/kyma/components/application-registry/pkg/client/clientset/versioned"
"github.com/kyma-project/rafter/pkg/apis/rafter/v1beta1"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/kubernetes"
restclient "k8s.io/client-go/rest"
)
func newExternalHandler(serviceDefinitionService metadata.ServiceDefinitionService, middlewares []mux.MiddlewareFunc, opt *options) http.Handler {
var metadataHandler externalapi.MetadataHandler
if serviceDefinitionService != nil {
metadataHandler = externalapi.NewMetadataHandler(externalapi.NewServiceDetailsValidator(), serviceDefinitionService, opt.detailedErrorResponse)
} else {
metadataHandler = externalapi.NewInvalidStateMetadataHandler("Service is not initialized properly.")
}
return externalapi.NewHandler(metadataHandler, middlewares)
}
func newServiceDefinitionService(opt *options, nameResolver k8sconsts.NameResolver) (metadata.ServiceDefinitionService, apperrors.AppError) {
k8sConfig, err := restclient.InClusterConfig()
if err != nil {
return nil, apperrors.Internal("Failed to read k8s in-cluster configuration, %s", err)
}
coreClientset, err := kubernetes.NewForConfig(k8sConfig)
if err != nil {
return nil, apperrors.Internal("Failed to create k8s core client, %s", err)
}
dynamicClient, err := dynamic.NewForConfig(k8sConfig)
if err != nil {
return nil, apperrors.Internal("Failed to create dynamic client, %s", err)
}
specificationService := NewSpecificationService(dynamicClient, opt)
applicationManager, apperror := newApplicationManager(k8sConfig)
if apperror != nil {
return nil, apperror
}
applicationServiceRepository := applications.NewServiceRepository(applicationManager)
istioService, apperror := newIstioService(k8sConfig, opt.namespace)
if apperror != nil {
return nil, apperror
}
sei := coreClientset.CoreV1().Secrets(opt.namespace)
secretsRepository := secrets.NewRepository(sei)
accessServiceManager := newAccessServiceManager(coreClientset, opt.namespace, opt.proxyPort)
credentialsSecretsService := newSecretsService(secretsRepository, nameResolver)
requestParametersSecretsService := secrets.NewRequestParametersService(secretsRepository, nameResolver)
uuidGenerator := metauuid.GeneratorFunc(func() (string, error) {
uuidInstance, err := uuid.NewV4()
if err != nil {
return "", err
}
return uuidInstance.String(), nil
})
serviceAPIService := serviceapi.NewService(nameResolver, accessServiceManager, credentialsSecretsService, requestParametersSecretsService, istioService)
return metadata.NewServiceDefinitionService(uuidGenerator, serviceAPIService, applicationServiceRepository, specificationService, applicationManager), nil
}
func NewSpecificationService(dynamicClient dynamic.Interface, opt *options) specification.Service {
groupVersionResource := schema.GroupVersionResource{
Version: v1beta1.GroupVersion.Version,
Group: v1beta1.GroupVersion.Group,
Resource: "clusterassetgroups",
}
resourceInterface := dynamicClient.Resource(groupVersionResource)
clusterAssetGroupRepository := rafter.NewClusterAssetGroupRepository(resourceInterface)
uploadClient := upload.NewClient(opt.uploadServiceURL)
rafterService := rafter.NewService(clusterAssetGroupRepository, uploadClient, opt.insecureAssetDownload, opt.rafterRequestTimeout)
return specification.NewSpecService(rafterService, opt.specRequestTimeout, opt.insecureSpecDownload)
}
func newApplicationManager(config *restclient.Config) (v1alpha12.ApplicationInterface, apperrors.AppError) {
applicationEnvironmentClientset, err := versioned.NewForConfig(config)
if err != nil {
return nil, apperrors.Internal("Failed to create k8s application client, %s", err)
}
return applicationEnvironmentClientset.ApplicationconnectorV1alpha1().Applications(), nil
}
func newAccessServiceManager(coreClientset *kubernetes.Clientset, namespace string, proxyPort int) accessservice.AccessServiceManager {
si := coreClientset.CoreV1().Services(namespace)
config := accessservice.AccessServiceManagerConfig{
TargetPort: int32(proxyPort),
}
return accessservice.NewAccessServiceManager(si, config)
}
func newSecretsService(repository secrets.Repository, nameResolver k8sconsts.NameResolver) secrets.Service {
strategyFactory := strategy.NewSecretsStrategyFactory(certificates.GenerateKeyAndCertificate)
return secrets.NewService(repository, nameResolver, strategyFactory)
}
func newIstioService(config *restclient.Config, namespace string) (istio.Service, apperrors.AppError) {
ic, err := istioclient.NewForConfig(config)
if err != nil {
return nil, apperrors.Internal("Failed to create Istio client, %s", err)
}
repository := istio.NewRepository(
ic.IstioV1alpha2().Rules(namespace),
ic.IstioV1alpha2().Instances(namespace),
ic.IstioV1alpha2().Handlers(namespace),
istio.RepositoryConfig{Namespace: namespace},
)
return istio.NewService(repository), nil
}