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config.go
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config.go
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package identity
import (
"context"
"net/http"
"crypto/tls"
"github.com/coreos/go-oidc"
dexoidc "github.com/dexidp/dex/connector/oidc"
ghodssyaml "github.com/ghodss/yaml"
"github.com/hashicorp/go-cleanhttp"
"github.com/pkg/errors"
kotsv1beta1 "github.com/replicatedhq/kots/kotskinds/apis/kots/v1beta1"
identitydeploy "github.com/replicatedhq/kots/pkg/identity/deploy"
"github.com/replicatedhq/kots/pkg/ingress"
"github.com/replicatedhq/kots/pkg/k8sutil"
kotsadmtypes "github.com/replicatedhq/kots/pkg/kotsadm/types"
"github.com/replicatedhq/kots/pkg/kotsutil"
corev1 "k8s.io/api/core/v1"
kuberneteserrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
)
var (
ConfigConfigMapName = "kotsadm-identity-config"
ConfigSecretName = "kotsadm-identity-secret"
ConfigSecretKeyName = "dexConnectors"
)
var insecureClient *http.Client
func init() {
transport := cleanhttp.DefaultTransport()
transport.TLSClientConfig = &tls.Config{
InsecureSkipVerify: true,
}
insecureClient = &http.Client{
Transport: transport,
}
}
type ErrorConnection struct {
Message string
}
func (e *ErrorConnection) Error() string {
return e.Message
}
func GetConfig(ctx context.Context, namespace string) (*kotsv1beta1.IdentityConfig, error) {
clientset, err := k8sutil.GetClientset()
if err != nil {
return nil, errors.Wrap(err, "failed to get k8s client set")
}
configMap, err := clientset.CoreV1().ConfigMaps(namespace).Get(ctx, ConfigConfigMapName, metav1.GetOptions{})
if err != nil {
if kuberneteserrors.IsNotFound(err) {
return &kotsv1beta1.IdentityConfig{}, nil
}
return nil, errors.Wrap(err, "failed to get config map")
}
identityConfig, err := kotsutil.LoadIdentityConfigFromContents([]byte(configMap.Data["identity.yaml"]))
if err != nil {
return nil, errors.Wrap(err, "failed to decode identity config")
}
if err := evaluateDexConnectorsValue(ctx, namespace, &identityConfig.Spec.DexConnectors); err != nil {
return nil, errors.Wrap(err, "failed to evaluate dex connectors value")
}
return identityConfig, err
}
func evaluateDexConnectorsValue(ctx context.Context, namespace string, dexConnectors *kotsv1beta1.DexConnectors) error {
if len(dexConnectors.Value) > 0 {
return nil
}
if dexConnectors.ValueFrom != nil && dexConnectors.ValueFrom.SecretKeyRef != nil {
clientset, err := k8sutil.GetClientset()
if err != nil {
return errors.Wrap(err, "failed to get k8s client set")
}
secretKeyRef := dexConnectors.ValueFrom.SecretKeyRef
secret, err := clientset.CoreV1().Secrets(namespace).Get(ctx, secretKeyRef.Name, metav1.GetOptions{})
if err != nil {
if kuberneteserrors.IsNotFound(err) {
return nil
}
return errors.Wrap(err, "failed to get secret")
}
err = ghodssyaml.Unmarshal(secret.Data[secretKeyRef.Key], &dexConnectors.Value)
if err != nil {
return errors.Wrap(err, "failed to unmarshal dex connectors")
}
}
return nil
}
func SetConfig(ctx context.Context, namespace string, identityConfig kotsv1beta1.IdentityConfig) error {
clientset, err := k8sutil.GetClientset()
if err != nil {
return errors.Wrap(err, "failed to get k8s client set")
}
err = ensureConfigSecret(ctx, clientset, namespace, identityConfig)
if err != nil {
return errors.Wrap(err, "failed to ensure secret")
}
err = ensureConfigConfigMap(ctx, clientset, namespace, identityConfig)
if err != nil {
return errors.Wrap(err, "failed to ensure config map")
}
return nil
}
func ensureConfigConfigMap(ctx context.Context, clientset kubernetes.Interface, namespace string, identityConfig kotsv1beta1.IdentityConfig) error {
configMap, err := identityConfigMapResource(identityConfig)
if err != nil {
return err
}
existingConfigMap, err := clientset.CoreV1().ConfigMaps(namespace).Get(ctx, ConfigConfigMapName, metav1.GetOptions{})
if err != nil {
if !kuberneteserrors.IsNotFound(err) {
return errors.Wrap(err, "failed to get config map")
}
_, err = clientset.CoreV1().ConfigMaps(namespace).Create(ctx, configMap, metav1.CreateOptions{})
if err != nil {
return errors.Wrap(err, "failed to create config map")
}
return nil
}
existingConfigMap.Data = configMap.Data
_, err = clientset.CoreV1().ConfigMaps(namespace).Update(ctx, existingConfigMap, metav1.UpdateOptions{})
if err != nil {
return errors.Wrap(err, "failed to update config map")
}
return nil
}
func identityConfigMapResource(identityConfig kotsv1beta1.IdentityConfig) (*corev1.ConfigMap, error) {
// NOTE: we do not encrypt kotsadm config
identityConfig.Spec.DexConnectors.Value = nil
identityConfig.Spec.DexConnectors.ValueFrom = &kotsv1beta1.DexConnectorsSource{
SecretKeyRef: &corev1.SecretKeySelector{
LocalObjectReference: corev1.LocalObjectReference{
Name: ConfigSecretName,
},
Key: ConfigSecretKeyName,
},
}
data, err := kotsutil.EncodeIdentityConfig(identityConfig)
if err != nil {
return nil, errors.Wrap(err, "failed to encode identity config")
}
return &corev1.ConfigMap{
TypeMeta: metav1.TypeMeta{
APIVersion: "v1",
Kind: "ConfigMap",
},
ObjectMeta: metav1.ObjectMeta{
Name: ConfigConfigMapName,
Labels: kotsadmtypes.GetKotsadmLabels(identitydeploy.AdditionalLabels("kotsadm", nil)),
},
Data: map[string]string{
"identity.yaml": string(data),
},
}, nil
}
func ensureConfigSecret(ctx context.Context, clientset kubernetes.Interface, namespace string, identityConfig kotsv1beta1.IdentityConfig) error {
secret, err := identitySecretResource(identityConfig)
if err != nil {
return err
}
existingSecret, err := clientset.CoreV1().Secrets(namespace).Get(ctx, ConfigSecretName, metav1.GetOptions{})
if err != nil {
if !kuberneteserrors.IsNotFound(err) {
return errors.Wrap(err, "failed to get secret")
}
_, err = clientset.CoreV1().Secrets(namespace).Create(ctx, secret, metav1.CreateOptions{})
if err != nil {
return errors.Wrap(err, "failed to create secret")
}
return nil
}
existingSecret.Data = secret.Data
_, err = clientset.CoreV1().Secrets(namespace).Update(ctx, existingSecret, metav1.UpdateOptions{})
if err != nil {
return errors.Wrap(err, "failed to update secret")
}
return nil
}
func identitySecretResource(identityConfig kotsv1beta1.IdentityConfig) (*corev1.Secret, error) {
// NOTE: we do not encrypt kotsadm config
data, err := ghodssyaml.Marshal(identityConfig.Spec.DexConnectors.Value)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal dex connectors")
}
return &corev1.Secret{
TypeMeta: metav1.TypeMeta{
APIVersion: "v1",
Kind: "Secret",
},
ObjectMeta: metav1.ObjectMeta{
Name: ConfigSecretName,
Labels: kotsadmtypes.GetKotsadmLabels(identitydeploy.AdditionalLabels("kotsadm", nil)),
},
Data: map[string][]byte{
ConfigSecretKeyName: data,
},
}, nil
}
func ValidateConfig(ctx context.Context, namespace string, identityConfig kotsv1beta1.IdentityConfig, ingressConfig kotsv1beta1.IngressConfig) error {
if identityConfig.Spec.AdminConsoleAddress == "" && (!ingressConfig.Spec.Enabled || ingressConfig.Spec.Ingress == nil) {
return errors.New("adminConsoleAddress required or KOTS Admin Console ingress must be enabled")
}
if identityConfig.Spec.IdentityServiceAddress == "" && (!identityConfig.Spec.IngressConfig.Enabled || identityConfig.Spec.IngressConfig.Ingress == nil) {
return errors.New("identityServiceAddress required or ingressConfig.ingress must be enabled")
}
return nil
}
func ValidateConnection(ctx context.Context, namespace string, identityConfig kotsv1beta1.IdentityConfig, ingressConfig kotsv1beta1.IngressConfig) error {
// validate kotsadm address
if identityConfig.Spec.AdminConsoleAddress != "" {
err := pingURL(identityConfig.Spec.AdminConsoleAddress)
if err != nil {
err = errors.Wrap(err, "failed to ping admin console address")
return &ErrorConnection{Message: err.Error()}
}
} else if ingressConfig.Spec.Enabled {
err := pingURL(ingress.GetAddress(ingressConfig.Spec))
if err != nil {
err = errors.Wrap(err, "failed to ping admin console ingress")
return &ErrorConnection{Message: err.Error()}
}
}
// TODO: make this work, the challenge is waiting for the dex pods to become ready/be deployed before validating
// validate dex issuer
/**
dexIssuer := DexIssuerURL(identityConfig.Spec)
httpClient, err := HTTPClient(ctx, namespace, identityConfig)
if err != nil {
return errors.Wrap(err, "failed to init http client")
}
dexClientCtx := oidc.ClientContext(ctx, httpClient)
_, err = oidc.NewProvider(dexClientCtx, dexIssuer)
if err != nil {
err = errors.Wrapf(err, "failed to query dex provider %q", dexIssuer)
return &ErrorConnection{Message: err.Error()}
}
**/
// NOTE: we do not encrypt kotsadm config
// validate connectors issuers
if err := evaluateDexConnectorsValue(ctx, namespace, &identityConfig.Spec.DexConnectors); err != nil {
return errors.Wrap(err, "failed to evaluate dex connectors value")
}
conns, err := identitydeploy.DexConnectorsToDexTypeConnectors(identityConfig.Spec.DexConnectors.Value)
if err != nil {
return errors.Wrap(err, "failed to map identity dex connectors to dex type connectors")
}
for _, conn := range conns {
switch c := conn.Config.(type) {
case *dexoidc.Config:
_, err = oidc.NewProvider(ctx, c.Issuer)
if err != nil {
err = errors.Wrapf(err, "failed to query provider %q", c.Issuer)
return &ErrorConnection{Message: err.Error()}
}
}
}
return nil
}
func pingURL(url string) error {
_, err := insecureClient.Get(url)
if err != nil {
return err
}
return nil
}