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Merge pull request #923 from replicatedhq/sealed-secrets
Convert secrets to sealed secrets
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| package secrets | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "crypto/rsa" | ||
| "crypto/x509" | ||
| "encoding/pem" | ||
| "io/ioutil" | ||
| "os" | ||
|
|
||
| sealedsecretsv1alpha1 "github.com/bitnami-labs/sealed-secrets/pkg/apis/sealed-secrets/v1alpha1" | ||
| sealedsecretsscheme "github.com/bitnami-labs/sealed-secrets/pkg/client/clientset/versioned/scheme" | ||
| "github.com/pkg/errors" | ||
| v1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/runtime/serializer" | ||
| jsonserializer "k8s.io/apimachinery/pkg/runtime/serializer/json" | ||
| "k8s.io/client-go/kubernetes/scheme" | ||
| ) | ||
|
|
||
| func replaceSecretsWithSealedSecrets(archivePath string, config map[string][]byte) error { | ||
| secretPaths, err := getSecretsInPath(archivePath) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to get secrets in path") | ||
| } | ||
|
|
||
| block, _ := pem.Decode(config["cert.pem"]) | ||
| if block == nil { | ||
| return errors.New("unable to read public key from secret") | ||
| } | ||
|
|
||
| cert, err := x509.ParseCertificate(block.Bytes) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to parse certificate") | ||
| } | ||
|
|
||
| sealedsecretsscheme.AddToScheme(scheme.Scheme) | ||
| codecFactory := serializer.NewCodecFactory(scheme.Scheme) | ||
|
|
||
| decode := scheme.Codecs.UniversalDeserializer().Decode | ||
| for _, secretPath := range secretPaths { | ||
| contents, err := ioutil.ReadFile(secretPath) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to read file") | ||
| } | ||
|
|
||
| decoded, _, err := decode(contents, nil, nil) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
|
|
||
| secret, ok := decoded.(*v1.Secret) | ||
| if !ok { | ||
| return nil | ||
| } | ||
|
|
||
| // sealed secrets require a namespace | ||
| if secret.Namespace == "" { | ||
| if os.Getenv("DEV_NAMESPACE") != "" { | ||
| secret.Namespace = os.Getenv("DEV_NAMESPACE") | ||
| } | ||
|
|
||
| secret.Namespace = os.Getenv("POD_NAMESPACE") | ||
| } | ||
|
|
||
| sealedSecret, err := sealedsecretsv1alpha1.NewSealedSecret(codecFactory, cert.PublicKey.(*rsa.PublicKey), secret) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to create sealedsecret") | ||
| } | ||
|
|
||
| s := jsonserializer.NewYAMLSerializer(jsonserializer.DefaultMetaFactory, scheme.Scheme, scheme.Scheme) | ||
|
|
||
| var b bytes.Buffer | ||
| if err := s.Encode(sealedSecret, &b); err != nil { | ||
| return errors.Wrap(err, "failed to serialized sealedsecret") | ||
| } | ||
|
|
||
| if err := ioutil.WriteFile(secretPath, b.Bytes(), 0644); err != nil { | ||
| return errors.Wrap(err, "failed to write sealed secret") | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| package secrets | ||
|
|
||
| import ( | ||
| "context" | ||
| "io/ioutil" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/pkg/errors" | ||
| "github.com/replicatedhq/kots/kotsadm/pkg/logger" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/kubernetes/scheme" | ||
| "sigs.k8s.io/controller-runtime/pkg/client/config" | ||
| ) | ||
|
|
||
| func ReplaceSecretsInPath(archiveDir string) error { | ||
| logger.Debug("checking for secrets replacers") | ||
|
|
||
| // look for a license secret | ||
| cfg, err := config.GetConfig() | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to get cluster config") | ||
| } | ||
|
|
||
| clientset, err := kubernetes.NewForConfig(cfg) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to create kubernetes clientset") | ||
| } | ||
|
|
||
| secrets, err := clientset.CoreV1().Secrets(os.Getenv("POD_NAMESPACE")).List(context.TODO(), metav1.ListOptions{ | ||
| LabelSelector: "kots.io/buildphase=secret", | ||
| }) | ||
| if err != nil { | ||
| return errors.Wrap(err, "failed to list secrets") | ||
| } | ||
|
|
||
| if len(secrets.Items) == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| if len(secrets.Items) > 1 { | ||
| return errors.New("multiple secret buildphases are not supported") | ||
| } | ||
|
|
||
| secret := secrets.Items[0] | ||
| secretType := secret.Labels["kots.io/secrettype"] | ||
|
|
||
| switch secretType { | ||
| case "sealedsecrets": | ||
| return replaceSecretsWithSealedSecrets(archiveDir, secret.Data) | ||
| default: | ||
| return errors.Errorf("unkknown secret type %q", secretType) | ||
| } | ||
| } | ||
|
|
||
| func getSecretsInPath(archiveDir string) ([]string, error) { | ||
| secretPaths := []string{} | ||
| decode := scheme.Codecs.UniversalDeserializer().Decode | ||
|
|
||
| err := filepath.Walk(archiveDir, func(path string, info os.FileInfo, err error) error { | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if info.IsDir() { | ||
| return nil | ||
| } | ||
|
|
||
| contents, err := ioutil.ReadFile(path) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| _, gvk, err := decode(contents, nil, nil) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
|
|
||
| if gvk.Group != "" || gvk.Version != "v1" || gvk.Kind != "Secret" { | ||
| return nil | ||
| } | ||
|
|
||
| secretPaths = append(secretPaths, path) | ||
| return nil | ||
| }) | ||
|
|
||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return secretPaths, nil | ||
| } |
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