/
main.go
168 lines (144 loc) · 5.91 KB
/
main.go
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package main
import (
"flag"
"log"
"os"
"sync"
"time"
"go.uber.org/zap"
"k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/cache"
"k8s.io/client-go/tools/clientcmd"
"github.com/pivotal/kpack/pkg/apis/build/v1alpha1"
"github.com/pivotal/kpack/pkg/blob"
"github.com/pivotal/kpack/pkg/buildpod"
"github.com/pivotal/kpack/pkg/client/clientset/versioned"
"github.com/pivotal/kpack/pkg/client/informers/externalversions"
"github.com/pivotal/kpack/pkg/cnb"
"github.com/pivotal/kpack/pkg/git"
"github.com/pivotal/kpack/pkg/reconciler"
"github.com/pivotal/kpack/pkg/reconciler/v1alpha1/build"
"github.com/pivotal/kpack/pkg/reconciler/v1alpha1/builder"
"github.com/pivotal/kpack/pkg/reconciler/v1alpha1/clusterbuilder"
"github.com/pivotal/kpack/pkg/reconciler/v1alpha1/image"
"github.com/pivotal/kpack/pkg/reconciler/v1alpha1/sourceresolver"
"github.com/pivotal/kpack/pkg/registry"
"github.com/pivotal/kpack/pkg/secret"
)
const (
routinesPerController = 2
)
var (
kubeconfig = flag.String("kubeconfig", "", "Path to a kubeconfig. Only required if out-of-cluster.")
masterURL = flag.String("master", "", "The address of the Kubernetes API server. Overrides any value in kubeconfig. Only required if out-of-cluster.")
buildInitImage = flag.String("build-init-image", os.Getenv("BUILD_INIT_IMAGE"), "The image used to initialize a build")
sourceInitImage = flag.String("source-init-image", os.Getenv("SOURCE_INIT_IMAGE"), "The image used to fetch the app source")
credInitImage = flag.String("cred-init-image", os.Getenv("CRED_INIT_IMAGE"), "The image used to setup build credentials")
nopImage = flag.String("nop-image", os.Getenv("NOP_IMAGE"), "The image used to finish a build")
)
func main() {
flag.Parse()
devLogger, err := zap.NewDevelopment()
if err != nil {
log.Fatalf("Couldn't create logger: %s", err)
}
logger := devLogger.Sugar()
clusterConfig, err := clientcmd.BuildConfigFromFlags(*masterURL, *kubeconfig)
if err != nil {
logger.Fatalf("Error building kubeconfig: %v", err)
}
client, err := versioned.NewForConfig(clusterConfig)
if err != nil {
log.Fatalf("could not get Build client: %s", err.Error())
}
k8sClient, err := kubernetes.NewForConfig(clusterConfig)
if err != nil {
log.Fatalf("could not get kubernetes client: %s", err.Error())
}
options := reconciler.Options{
Logger: logger,
Client: client,
ResyncPeriod: 10 * time.Hour,
SourcePollingFrequency: 1 * time.Minute,
BuilderPollingFrequency: 1 * time.Minute,
}
informerFactory := externalversions.NewSharedInformerFactory(client, options.ResyncPeriod)
buildInformer := informerFactory.Build().V1alpha1().Builds()
imageInformer := informerFactory.Build().V1alpha1().Images()
builderInformer := informerFactory.Build().V1alpha1().Builders()
clusterBuilderInformer := informerFactory.Build().V1alpha1().ClusterBuilders()
sourceResolverInformer := informerFactory.Build().V1alpha1().SourceResolvers()
k8sInformerFactory := informers.NewSharedInformerFactory(k8sClient, options.ResyncPeriod)
pvcInformer := k8sInformerFactory.Core().V1().PersistentVolumeClaims()
podInformer := k8sInformerFactory.Core().V1().Pods()
metadataRetriever := &cnb.RemoteMetadataRetriever{
RemoteImageFactory: ®istry.ImageFactory{
KeychainFactory: secret.NewSecretKeychainFactory(k8sClient),
},
}
buildpodGenerator := &buildpod.Generator{
BuildPodConfig: v1alpha1.BuildPodConfig{
BuildInitImage: *buildInitImage,
SourceInitImage: *sourceInitImage,
CredsInitImage: *credInitImage,
NopImage: *nopImage,
},
K8sClient: k8sClient,
}
gitResolver := git.NewResolver(k8sClient)
blobResolver := &blob.Resolver{}
registryResolver := ®istry.Resolver{}
buildController := build.NewController(options, k8sClient, buildInformer, podInformer, metadataRetriever, buildpodGenerator)
imageController := image.NewController(options, k8sClient, imageInformer, buildInformer, builderInformer, clusterBuilderInformer, sourceResolverInformer, pvcInformer)
builderController := builder.NewController(options, builderInformer, metadataRetriever)
clusterBuilderController := clusterbuilder.NewController(options, clusterBuilderInformer, metadataRetriever)
sourceResolverController := sourceresolver.NewController(options, sourceResolverInformer, gitResolver, blobResolver, registryResolver)
stopChan := make(chan struct{})
informerFactory.Start(stopChan)
k8sInformerFactory.Start(stopChan)
cache.WaitForCacheSync(stopChan, buildInformer.Informer().HasSynced)
cache.WaitForCacheSync(stopChan, imageInformer.Informer().HasSynced)
cache.WaitForCacheSync(stopChan, builderInformer.Informer().HasSynced)
cache.WaitForCacheSync(stopChan, clusterBuilderInformer.Informer().HasSynced)
cache.WaitForCacheSync(stopChan, sourceResolverInformer.Informer().HasSynced)
cache.WaitForCacheSync(stopChan, pvcInformer.Informer().HasSynced)
cache.WaitForCacheSync(stopChan, podInformer.Informer().HasSynced)
err = runGroup(
func(done <-chan struct{}) error {
return imageController.Run(routinesPerController, done)
},
func(done <-chan struct{}) error {
return buildController.Run(routinesPerController, done)
},
func(done <-chan struct{}) error {
return builderController.Run(routinesPerController, done)
},
func(done <-chan struct{}) error {
return clusterBuilderController.Run(routinesPerController, done)
},
func(done <-chan struct{}) error {
return sourceResolverController.Run(2*routinesPerController, done)
},
)
if err != nil {
logger.Fatalw("Error running controller", zap.Error(err))
}
}
type doneFunc func(done <-chan struct{}) error
func runGroup(fns ...doneFunc) error {
var wg sync.WaitGroup
wg.Add(len(fns))
done := make(chan struct{})
result := make(chan error, len(fns))
for _, fn := range fns {
go func(fn doneFunc) {
defer wg.Done()
result <- fn(done)
}(fn)
}
defer close(result)
defer wg.Wait()
defer close(done)
return <-result
}