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/
service.go
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/
service.go
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package service
import (
"context"
"sync"
"github.com/giantswarm/apiextensions/v6/pkg/apis/provider/v1alpha1"
"github.com/giantswarm/k8sclient/v7/pkg/k8sclient"
"github.com/giantswarm/k8sclient/v7/pkg/k8srestconfig"
"github.com/giantswarm/microendpoint/service/version"
"github.com/giantswarm/microerror"
"github.com/giantswarm/micrologger"
"github.com/giantswarm/statusresource/v5"
"github.com/giantswarm/versionbundle"
"github.com/spf13/viper"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/rest"
capzv1alpha3 "sigs.k8s.io/cluster-api-provider-azure/api/v1beta1"
capiv1beta1 "sigs.k8s.io/cluster-api/api/v1beta1"
capiv1alpha4 "sigs.k8s.io/cluster-api/exp/api/v1alpha4"
capiexpv1beta1 "sigs.k8s.io/cluster-api/exp/api/v1beta1"
ctrlclient "sigs.k8s.io/controller-runtime/pkg/client"
"github.com/giantswarm/azure-collector/v3/flag"
"github.com/giantswarm/azure-collector/v3/pkg/project"
"github.com/giantswarm/azure-collector/v3/service/collector"
)
// Config represents the configuration used to create a new service.
type Config struct {
Logger micrologger.Logger
Flag *flag.Flag
Viper *viper.Viper
Description string
GitCommit string
ProjectName string
Source string
Version string
}
type Service struct {
Version *version.Service
bootOnce sync.Once
operatorCollector *collector.Set
statusResourceCollector *statusresource.CollectorSet
}
// New creates a new configured service object.
func New(config Config) (*Service, error) {
if config.Logger == nil {
return nil, microerror.Maskf(invalidConfigError, "%T.Logger must not be empty", config)
}
if config.Flag == nil {
return nil, microerror.Maskf(invalidConfigError, "%T.Flag must not be empty", config)
}
if config.Viper == nil {
return nil, microerror.Maskf(invalidConfigError, "%T.Viper must not be empty", config)
}
if config.Description == "" {
return nil, microerror.Maskf(invalidConfigError, "%T.Description must not be empty", config)
}
if config.GitCommit == "" {
return nil, microerror.Maskf(invalidConfigError, "%T.GitCommit must not be empty", config)
}
if config.ProjectName == "" {
return nil, microerror.Maskf(invalidConfigError, "%T.ProjectName must not be empty", config)
}
if config.Source == "" {
return nil, microerror.Maskf(invalidConfigError, "%T.Source must not be empty", config)
}
var err error
var k8sClient *k8sclient.Clients
{
address := config.Viper.GetString(config.Flag.Service.Kubernetes.Address)
inCluster := config.Viper.GetBool(config.Flag.Service.Kubernetes.InCluster)
kubeConfigPath := config.Viper.GetString(config.Flag.Service.Kubernetes.KubeConfigPath)
defined := 0
if address != "" {
defined++
}
if inCluster {
defined++
}
if kubeConfigPath != "" {
defined++
}
if defined == 0 {
return nil, microerror.Maskf(invalidConfigError, "address or inCluster or kubeConfigPath must be defined")
}
if defined > 1 {
return nil, microerror.Maskf(invalidConfigError, "address and inCluster and kubeConfigPath must not be defined at the same time")
}
var restConfig *rest.Config
if kubeConfigPath == "" {
restConfig, err = buildK8sRestConfig(config)
if err != nil {
return nil, microerror.Mask(err)
}
}
c := k8sclient.ClientsConfig{
Logger: config.Logger,
SchemeBuilder: k8sclient.SchemeBuilder{
v1alpha1.AddToScheme,
capiv1beta1.AddToScheme,
capiexpv1beta1.AddToScheme,
capzv1alpha3.AddToScheme,
capiv1alpha4.AddToScheme,
},
KubeConfigPath: kubeConfigPath,
RestConfig: restConfig,
}
k8sClient, err = k8sclient.NewClients(c)
if err != nil {
return nil, microerror.Mask(err)
}
}
var operatorCollector *collector.Set
{
c := collector.SetConfig{
ControlPlaneResourceGroup: config.Viper.GetString(config.Flag.Service.ControlPlaneResourceGroup),
Location: config.Viper.GetString(config.Flag.Service.Location),
Logger: config.Logger,
K8sClient: k8sClient,
GSTenantID: config.Viper.GetString(config.Flag.Service.Azure.TenantID),
}
operatorCollector, err = collector.NewSet(c)
if err != nil {
return nil, microerror.Mask(err)
}
}
var statusResourceCollector *statusresource.CollectorSet
{
f := func(ctx context.Context, opts metav1.ListOptions) (watch.Interface, error) {
cl, err := ctrlclient.NewWithWatch(k8sClient.RESTConfig(), ctrlclient.Options{})
if err != nil {
return nil, microerror.Mask(err)
}
list := v1alpha1.AzureConfigList{}
return cl.Watch(ctx, &list)
}
c := statusresource.CollectorSetConfig{
Logger: config.Logger,
Watcher: f,
}
statusResourceCollector, err = statusresource.NewCollectorSet(c)
if err != nil {
return nil, microerror.Mask(err)
}
}
var versionService *version.Service
{
c := version.Config{
Description: config.Description,
GitCommit: config.GitCommit,
Name: config.ProjectName,
Source: config.Source,
Version: config.Version,
VersionBundles: []versionbundle.Bundle{project.NewVersionBundle()},
}
versionService, err = version.New(c)
if err != nil {
return nil, microerror.Mask(err)
}
}
s := &Service{
Version: versionService,
bootOnce: sync.Once{},
operatorCollector: operatorCollector,
statusResourceCollector: statusResourceCollector,
}
return s, nil
}
func (s *Service) Boot(ctx context.Context) {
s.bootOnce.Do(func() {
go s.operatorCollector.Boot(ctx) // nolint: errcheck
go s.statusResourceCollector.Boot(ctx) // nolint: errcheck
})
}
func buildK8sRestConfig(config Config) (*rest.Config, error) {
c := k8srestconfig.Config{
Logger: config.Logger,
Address: config.Viper.GetString(config.Flag.Service.Kubernetes.Address),
InCluster: config.Viper.GetBool(config.Flag.Service.Kubernetes.InCluster),
KubeConfig: config.Viper.GetString(config.Flag.Service.Kubernetes.KubeConfig),
TLS: k8srestconfig.ConfigTLS{
CAFile: config.Viper.GetString(config.Flag.Service.Kubernetes.TLS.CAFile),
CrtFile: config.Viper.GetString(config.Flag.Service.Kubernetes.TLS.CrtFile),
KeyFile: config.Viper.GetString(config.Flag.Service.Kubernetes.TLS.KeyFile),
},
}
restConfig, err := k8srestconfig.New(c)
if err != nil {
return nil, microerror.Mask(err)
}
return restConfig, nil
}