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registry.go
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registry.go
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package registry
import (
"bufio"
"context"
_ "embed"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
"time"
"github.com/pkg/errors"
kotsv1beta1 "github.com/replicatedhq/kots/kotskinds/apis/kots/v1beta1"
"github.com/replicatedhq/kots/pkg/k8sutil"
"github.com/replicatedhq/kots/pkg/kotsadm"
"github.com/replicatedhq/kots/pkg/kotsutil"
"github.com/replicatedhq/kots/pkg/logger"
"github.com/replicatedhq/kots/pkg/registry/types"
"github.com/replicatedhq/kots/pkg/reporting"
"github.com/replicatedhq/kots/pkg/rewrite"
"github.com/replicatedhq/kots/pkg/store"
"github.com/replicatedhq/kots/pkg/util"
corev1 "k8s.io/api/core/v1"
kuberneteserrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// RewriteImages will use the app (a) and send the images to the registry specified. It will create patches for these
// and create a new version of the application
// the caller is responsible for deleting the appDir returned
func RewriteImages(appID string, sequence int64, hostname string, username string, password string, namespace string, isReadOnly bool, configValues *kotsv1beta1.ConfigValues) (appDir string, finalError error) {
if err := store.GetStore().SetTaskStatus("image-rewrite", "Updating registry settings", "running"); err != nil {
return "", errors.Wrap(err, "failed to set task status")
}
finishedCh := make(chan struct{})
defer close(finishedCh)
go func() {
for {
select {
case <-time.After(time.Second):
if err := store.GetStore().UpdateTaskStatusTimestamp("image-rewrite"); err != nil {
logger.Error(err)
}
case <-finishedCh:
return
}
}
}()
defer func() {
if finalError == nil {
if err := store.GetStore().ClearTaskStatus("image-rewrite"); err != nil {
logger.Error(errors.Wrap(err, "failed to clear image rewrite task status"))
}
} else {
// do not show the stack trace to the user
causeErr := errors.Cause(finalError)
if err := store.GetStore().SetTaskStatus("image-rewrite", causeErr.Error(), "failed"); err != nil {
logger.Error(errors.Wrap(err, "failed to set image rewrite task status as failed"))
}
}
}()
// get the archive and store it in a temporary location
appDir, err := ioutil.TempDir("", "kotsadm")
if err != nil {
return "", errors.Wrap(err, "failed to create temp dir")
}
// appDir is returned
err = store.GetStore().GetAppVersionArchive(appID, sequence, appDir)
if err != nil {
return "", errors.Wrap(err, "failed to get app version archive")
}
kotsKinds, err := kotsutil.LoadKotsKindsFromPath(filepath.Join(appDir, "upstream"))
if err != nil {
return "", errors.Wrap(err, "failed to load kotskinds from path")
}
if configValues == nil {
configValues = kotsKinds.ConfigValues
}
// get the downstream names only
downstreams, err := store.GetStore().ListDownstreamsForApp(appID)
if err != nil {
return "", errors.Wrap(err, "failed to list downstreams")
}
downstreamNames := []string{}
for _, d := range downstreams {
downstreamNames = append(downstreamNames, d.Name)
}
a, err := store.GetStore().GetApp(appID)
if err != nil {
return "", errors.Wrap(err, "failed to get app")
}
// dev_namespace makes the dev env work
appNamespace := util.PodNamespace
if os.Getenv("KOTSADM_TARGET_NAMESPACE") != "" {
appNamespace = os.Getenv("KOTSADM_TARGET_NAMESPACE")
}
pipeReader, pipeWriter := io.Pipe()
go func() {
scanner := bufio.NewScanner(pipeReader)
for scanner.Scan() {
if err := store.GetStore().SetTaskStatus("image-rewrite", scanner.Text(), "running"); err != nil {
logger.Error(err)
}
}
pipeReader.CloseWithError(scanner.Err())
}()
nextAppSequence, err := store.GetStore().GetNextAppSequence(a.ID)
if err != nil {
return "", errors.Wrap(err, "failed to get next app sequence")
}
options := rewrite.RewriteOptions{
RootDir: appDir,
UpstreamURI: fmt.Sprintf("replicated://%s", kotsKinds.License.Spec.AppSlug),
UpstreamPath: filepath.Join(appDir, "upstream"),
Installation: &kotsKinds.Installation,
Downstreams: downstreamNames,
CreateAppDir: false,
ExcludeKotsKinds: true,
License: kotsKinds.License,
ConfigValues: configValues,
KotsApplication: &kotsKinds.KotsApplication,
K8sNamespace: appNamespace,
ReportWriter: pipeWriter,
IsAirgap: a.IsAirgap,
RegistrySettings: types.RegistrySettings{
Hostname: hostname,
Namespace: namespace,
Username: username,
Password: password,
IsReadOnly: isReadOnly,
},
AppID: a.ID,
AppSlug: a.Slug,
IsGitOps: a.IsGitOps,
AppSequence: nextAppSequence,
ReportingInfo: reporting.GetReportingInfo(a.ID),
// TODO: pass in as arguments if this is ever called from CLI
HTTPProxyEnvValue: os.Getenv("HTTP_PROXY"),
HTTPSProxyEnvValue: os.Getenv("HTTPS_PROXY"),
NoProxyEnvValue: os.Getenv("NO_PROXY"),
}
options.CopyImages = true
if isReadOnly {
options.CopyImages = false
}
if err := rewrite.Rewrite(options); err != nil {
return "", errors.Wrap(err, "failed to rewrite images")
}
return appDir, nil
}
func HasKurlRegistry() (bool, error) {
clientset, err := k8sutil.GetClientset()
if err != nil {
return false, errors.Wrap(err, "failed to get k8s clientset")
}
registryCredsSecret, err := clientset.CoreV1().Secrets(metav1.NamespaceDefault).Get(context.TODO(), "registry-creds", metav1.GetOptions{})
if kuberneteserrors.IsNotFound(err) {
return false, nil
}
if err != nil {
// this is not an error, it could be rbac
// don't even log it, normal operations
return false, nil
}
if registryCredsSecret != nil {
if registryCredsSecret.Type == corev1.SecretTypeDockerConfigJson {
return true, nil
}
}
return false, nil
}
func GetKotsadmRegistry() (*types.RegistrySettings, error) {
clientset, err := k8sutil.GetClientset()
if err != nil {
return nil, errors.Wrap(err, "failed to get k8s clientset")
}
namespace := util.PodNamespace
registryConfig, err := kotsadm.GetRegistryConfigFromCluster(namespace, clientset)
if err != nil {
return nil, errors.Wrap(err, "failed to get kotsadm options from cluster")
}
registry := registryConfig.OverrideRegistry
registryNamespace := registryConfig.OverrideNamespace
hostParts := strings.Split(registryConfig.OverrideRegistry, "/")
if len(hostParts) == 2 {
registry = hostParts[0]
registryNamespace = hostParts[1]
}
registrySettings := types.RegistrySettings{
Hostname: registry,
Namespace: registryNamespace,
Username: registryConfig.Username,
Password: registryConfig.Password,
IsReadOnly: registryConfig.IsReadOnly,
}
return ®istrySettings, nil
}