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registry.go
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registry.go
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package registry
import (
"crypto/md5"
"encoding/base64"
"encoding/hex"
"errors"
"fmt"
"time"
"github.com/covexo/devspace/pkg/devspace/config/generated"
"github.com/covexo/devspace/pkg/devspace/config/v1"
"github.com/covexo/devspace/pkg/util/log"
"k8s.io/client-go/kubernetes"
"github.com/covexo/devspace/pkg/devspace/config/configutil"
"github.com/covexo/devspace/pkg/devspace/helm"
k8sv1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// InternalRegistryName is the name of the release used to deploy the internal registry
const InternalRegistryName = "devspace-registry"
// InternalRegistryDeploymentName is the name of the kubernetes deployment
const InternalRegistryDeploymentName = "devspace-registry-docker-registry"
const registryAuthSecretNamePrefix = "devspace-registry-auth-"
const registryPort = 5000
var pullSecretNames = []string{}
// CreatePullSecret creates an image pull secret for a registry
func CreatePullSecret(kubectl *kubernetes.Clientset, namespace, registryURL, username, passwordOrToken, email string, log log.Logger) error {
pullSecretName := GetRegistryAuthSecretName(registryURL)
if registryURL == "hub.docker.com" || registryURL == "" {
registryURL = "https://index.docker.io/v1/"
}
authToken := passwordOrToken
if username != "" {
authToken = username + ":" + authToken
}
registryAuthEncoded := base64.StdEncoding.EncodeToString([]byte(authToken))
pullSecretDataValue := []byte(`{
"auths": {
"` + registryURL + `": {
"auth": "` + registryAuthEncoded + `",
"email": "` + email + `"
}
}
}`)
pullSecretData := map[string][]byte{}
pullSecretDataKey := k8sv1.DockerConfigJsonKey
pullSecretData[pullSecretDataKey] = pullSecretDataValue
registryPullSecret := &k8sv1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: pullSecretName,
},
Data: pullSecretData,
Type: k8sv1.SecretTypeDockerConfigJson,
}
_, err := kubectl.Core().Secrets(namespace).Get(pullSecretName, metav1.GetOptions{})
if err != nil {
_, err = kubectl.Core().Secrets(namespace).Create(registryPullSecret)
if err != nil {
return fmt.Errorf("Unable to create image pull secret: %s", err.Error())
}
log.Donef("Created image pull secret %s/%s", namespace, pullSecretName)
} else {
_, err = kubectl.Core().Secrets(namespace).Update(registryPullSecret)
if err != nil {
return fmt.Errorf("Unable to update image pull secret: %s", err.Error())
}
}
pullSecretNames = append(pullSecretNames, pullSecretName)
return nil
}
// GetRegistryAuthSecretName returns the name of the image pull secret for a registry
func GetRegistryAuthSecretName(registryURL string) string {
registryHash := md5.Sum([]byte(registryURL))
return registryAuthSecretNamePrefix + hex.EncodeToString(registryHash[:])
}
// InitInternalRegistry deploys and starts a new docker registry if necessary
func InitInternalRegistry(kubectl *kubernetes.Clientset, helm *helm.ClientWrapper, internalRegistry *v1.InternalRegistryConfig, registryConfig *v1.RegistryConfig) error {
registryReleaseNamespace := *internalRegistry.Namespace
// Check if registry already exists
registryDeployment, err := kubectl.ExtensionsV1beta1().Deployments(registryReleaseNamespace).Get(InternalRegistryDeploymentName, metav1.GetOptions{})
if err != nil {
err = createRegistry(kubectl, helm, internalRegistry, registryConfig)
if err != nil {
return err
}
}
// Get the registry url
serviceHostname, err := getRegistryURL(kubectl, registryReleaseNamespace, InternalRegistryName+"-docker-registry")
if err != nil {
return err
}
// Update config values
registryConfig.URL = configutil.String(serviceHostname)
registryConfig.Insecure = configutil.Bool(true)
// Wait for registry if it is not ready yet
if registryDeployment == nil || registryDeployment.Status.Replicas == 0 || registryDeployment.Status.ReadyReplicas != registryDeployment.Status.Replicas {
// Wait till registry is started
err = waitForRegistry(registryReleaseNamespace, InternalRegistryDeploymentName, kubectl)
if err != nil {
return err
}
}
return nil
}
func waitForRegistry(registryNamespace, registryReleaseDeploymentName string, client *kubernetes.Clientset) error {
registryWaitingTime := 2 * 60 * time.Second
registryCheckInverval := 5 * time.Second
log.StartWait("Waiting for internal registry to start")
defer log.StopWait()
for registryWaitingTime > 0 {
registryDeployment, err := client.ExtensionsV1beta1().Deployments(registryNamespace).Get(registryReleaseDeploymentName, metav1.GetOptions{})
if err != nil {
continue
}
if registryDeployment.Status.ReadyReplicas == registryDeployment.Status.Replicas {
return nil
}
time.Sleep(registryCheckInverval)
registryWaitingTime = registryWaitingTime - registryCheckInverval
}
return errors.New("Internal registry start waiting time timed out")
}
// GetImageURL returns the image (optional with tag)
func GetImageURL(generatedConfig *generated.Config, imageConfig *v1.ImageConfig, includingLatestTag bool) string {
image := *imageConfig.Name
registryURL := ""
if imageConfig.Registry != nil {
registryConfig, registryConfErr := GetRegistryConfig(imageConfig)
if registryConfErr != nil {
log.Fatal(registryConfErr)
}
registryURL = *registryConfig.URL
if registryURL != "" && registryURL != "hub.docker.com" {
image = registryURL + "/" + image
}
}
fullImageName := *imageConfig.Name
if registryURL != "" {
fullImageName = registryURL + "/" + fullImageName
}
if includingLatestTag {
if imageConfig.Tag != nil {
image = image + ":" + *imageConfig.Tag
} else {
image = image + ":" + generatedConfig.ImageTags[fullImageName]
}
}
return image
}
// GetRegistryConfig returns the registry config for an image or an error if the registry is not defined
func GetRegistryConfig(imageConfig *v1.ImageConfig) (*v1.RegistryConfig, error) {
config := configutil.GetConfig()
registryName := *imageConfig.Registry
registryMap := *config.Registries
registryConfig, registryFound := registryMap[registryName]
if !registryFound {
return nil, errors.New("Unable to find registry: " + registryName)
}
return registryConfig, nil
}
// GetPullSecretNames returns all names of auto-generated image pull secrets
func GetPullSecretNames() []string {
return pullSecretNames
}