update token in file listed in KUBECONFIG env var (fabric8io#6240)

Signed-off-by: Andre Dietisheim <[email protected]>

CHANGELOG.md

@@ -13,6 +13,7 @@
 * Fix #6281: use GitHub binary repo for Kube API Tests
 * Fix #6282: Allow annotated types with Pattern, Min, and Max with Lists and Maps and CRD generation
 * Fix #5480: Move `io.fabric8:zjsonpatch` to KubernetesClient project
+* Fix #6240: Use kubeconfig files listed in the KUBECONFIG env var
 
 #### Dependency Upgrade
 * Fix #6052: Removed dependency on no longer maintained com.github.mifmif:generex

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/ConfigBuilder.java

@@ -57,9 +57,8 @@ public Config build() {
         fluent.getOauthTokenProvider(), fluent.getCustomHeaders(), fluent.getRequestRetryBackoffLimit(),
         fluent.getRequestRetryBackoffInterval(), fluent.getUploadRequestTimeout(), fluent.getOnlyHttpWatches(),
         fluent.getCurrentContext(), fluent.getContexts(),
-        Optional.ofNullable(fluent.getAutoConfigure()).orElse(!disableAutoConfig()), true);
+        Optional.ofNullable(fluent.getAutoConfigure()).orElse(!disableAutoConfig()), true, fluent.getFiles());
     buildable.setAuthProvider(fluent.getAuthProvider());
-    buildable.setFile(fluent.getFile());
     return buildable;
   }
 }

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/ConfigFluent.java

@@ -78,7 +78,7 @@ public void copyInstance(Config instance) {
       this.withContexts(instance.getContexts());
       this.withAutoConfigure(instance.getAutoConfigure());
       this.withAuthProvider(instance.getAuthProvider());
-      this.withFile(instance.getFile());
+      this.withFiles(instance.getFiles());
     }
   }
 

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/KubeConfigFile.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.kubernetes.client;
+
+import java.io.File;
+import io.fabric8.kubernetes.api.model.Config;
+import lombok.Getter;
+
+@Getter
+public class KubeConfigFile {
+    private final File file;
+    private final Config config;
+
+    /** for testing purposes **/
+    public KubeConfigFile(File file, Config config) {
+      this.file = file;
+      this.config = config;
+    }
+ }

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/SundrioConfig.java

@@ -19,6 +19,7 @@
 import io.fabric8.kubernetes.client.http.TlsVersion;
 import io.sundr.builder.annotations.Buildable;
 
+import java.io.File;
 import java.util.List;
 import java.util.Map;
 
@@ -50,14 +51,14 @@ public SundrioConfig(String masterUrl, String apiVersion, String namespace, Bool
       String impersonateUsername, String[] impersonateGroups, Map<String, List<String>> impersonateExtras,
       OAuthTokenProvider oauthTokenProvider, Map<String, String> customHeaders, Integer requestRetryBackoffLimit,
       Integer requestRetryBackoffInterval, Integer uploadRequestTimeout, Boolean onlyHttpWatches, NamedContext currentContext,
-      List<NamedContext> contexts, Boolean autoConfigure) {
+      List<NamedContext> contexts, Boolean autoConfigure, List<File> files) {
     super(masterUrl, apiVersion, namespace, trustCerts, disableHostnameVerification, caCertFile, caCertData,
         clientCertFile, clientCertData, clientKeyFile, clientKeyData, clientKeyAlgo, clientKeyPassphrase, username,
         password, oauthToken, autoOAuthToken, watchReconnectInterval, watchReconnectLimit, connectionTimeout, requestTimeout,
         scaleTimeout, loggingInterval, maxConcurrentRequests, maxConcurrentRequestsPerHost, http2Disable,
         httpProxy, httpsProxy, noProxy, userAgent, tlsVersions, websocketPingInterval, proxyUsername, proxyPassword,
         trustStoreFile, trustStorePassphrase, keyStoreFile, keyStorePassphrase, impersonateUsername, impersonateGroups,
         impersonateExtras, oauthTokenProvider, customHeaders, requestRetryBackoffLimit, requestRetryBackoffInterval,
-        uploadRequestTimeout, onlyHttpWatches, currentContext, contexts, autoConfigure, true);
+        uploadRequestTimeout, onlyHttpWatches, currentContext, contexts, autoConfigure, true, files);
   }
 }

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/internal/KubeConfigUtils.java

@@ -18,20 +18,21 @@
 import io.fabric8.kubernetes.api.model.AuthInfo;
 import io.fabric8.kubernetes.api.model.Cluster;
 import io.fabric8.kubernetes.api.model.Config;
+import io.fabric8.kubernetes.api.model.ConfigBuilder;
 import io.fabric8.kubernetes.api.model.Context;
 import io.fabric8.kubernetes.api.model.NamedAuthInfo;
 import io.fabric8.kubernetes.api.model.NamedCluster;
 import io.fabric8.kubernetes.api.model.NamedContext;
+import io.fabric8.kubernetes.api.model.NamedExtension;
+import io.fabric8.kubernetes.api.model.PreferencesBuilder;
 import io.fabric8.kubernetes.client.utils.Serialization;
+import io.fabric8.kubernetes.client.utils.Utils;
 
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileWriter;
 import java.io.IOException;
-import java.util.ArrayList;
 import java.util.List;
-import java.util.function.Consumer;
-import java.util.function.Supplier;
 
 /**
  * Helper class for working with the YAML config file thats located in
@@ -165,27 +166,40 @@ public static void persistKubeConfigIntoFile(Config kubeConfig, String kubeConfi
     }
   }
 
-  /**
-   * Adds the given source list to the destination list that's provided by the given supplier
-   * and then set to the destination by the given setter.
-   * Creates the list if it doesn't exist yet (supplier returns {@code null}.
-   * Does not copy if the given list is {@code null}.
-   *
-   * @param source the source list to add to the destination
-   * @param destinationSupplier supplies the list that the source shall be added to
-   * @param destinationSetter sets the list, once the source was added to it
-   */
-  public static <T> void addTo(List<T> source, Supplier<List<T>> destinationSupplier, Consumer<List<T>> destinationSetter) {
-    if (source == null) {
-      return;
+  public static Config merge(Config thisConfig, Config thatConfig) {
+    if (thisConfig == null) {
+      return thatConfig;
     }
-
-    List<T> list = destinationSupplier.get();
-    if (list == null) {
-      list = new ArrayList<>();
+    ConfigBuilder builder = new ConfigBuilder(thatConfig);
+    if (thisConfig.getClusters() != null) {
+      builder.addAllToClusters(thisConfig.getClusters());
+    }
+    if (thisConfig.getContexts() != null) {
+      builder.addAllToContexts(thisConfig.getContexts());
+    }
+    if (thisConfig.getUsers() != null) {
+      builder.addAllToUsers(thisConfig.getUsers());
     }
-    list.addAll(source);
-    destinationSetter.accept(list);
+    if (thisConfig.getExtensions() != null) {
+      builder.addAllToExtensions(thisConfig.getExtensions());
+    }
+    if (!builder.hasCurrentContext()
+        && Utils.isNotNullOrEmpty(thisConfig.getCurrentContext())) {
+      builder.withCurrentContext(thisConfig.getCurrentContext());
+    }
+    Config merged = builder.build();
+    mergePreferences(thisConfig, merged);
+    return merged;
   }
 
+  public static void mergePreferences(io.fabric8.kubernetes.api.model.Config source,
+      io.fabric8.kubernetes.api.model.Config destination) {
+    if (source.getPreferences() != null) {
+      PreferencesBuilder builder = new PreferencesBuilder(destination.getPreferences());
+      if (source.getPreferences() != null) {
+        builder.addToExtensions(source.getExtensions().toArray(new NamedExtension[] {}));
+      }
+      destination.setPreferences(builder.build());
+    }
+  }
 }

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/utils/OpenIDConnectionUtils.java

@@ -20,8 +20,9 @@
 import io.fabric8.kubernetes.api.model.AuthInfo;
 import io.fabric8.kubernetes.api.model.AuthProviderConfig;
 import io.fabric8.kubernetes.api.model.NamedAuthInfo;
+import io.fabric8.kubernetes.api.model.NamedAuthInfoBuilder;
 import io.fabric8.kubernetes.client.Config;
-import io.fabric8.kubernetes.client.Config.KubeConfigFile;
+import io.fabric8.kubernetes.client.KubeConfigFile;
 import io.fabric8.kubernetes.client.KubernetesClientException;
 import io.fabric8.kubernetes.client.http.HttpClient;
 import io.fabric8.kubernetes.client.http.HttpRequest;
@@ -84,22 +85,22 @@ private OpenIDConnectionUtils() {
    * @return access token for interacting with Kubernetes API
    */
   public static CompletableFuture<String> resolveOIDCTokenFromAuthConfig(
-          Config currentConfig, Map<String, String> currentAuthProviderConfig, HttpClient.Builder clientBuilder) {
+      Config currentConfig, Map<String, String> currentAuthProviderConfig, HttpClient.Builder clientBuilder) {
     String originalToken = currentAuthProviderConfig.get(ID_TOKEN_KUBECONFIG);
     String idpCert = currentAuthProviderConfig.getOrDefault(IDP_CERT_DATA, getClientCertDataFromConfig(currentConfig));
     if (isTokenRefreshSupported(currentAuthProviderConfig)) {
       final HttpClient httpClient = initHttpClientWithPemCert(idpCert, clientBuilder);
       final CompletableFuture<String> result = getOpenIdConfiguration(httpClient, currentAuthProviderConfig)
-              .thenCompose(openIdConfiguration -> refreshOpenIdToken(httpClient, currentAuthProviderConfig, openIdConfiguration))
-              .thenApply(oAuthToken -> persistOAuthToken(currentConfig, oAuthToken, null))
-              .thenApply(oAuthToken -> {
-                if (oAuthToken == null || Utils.isNullOrEmpty(oAuthToken.idToken)) {
-                  LOGGER.warn("token response did not contain an id_token, either the scope \\\"openid\\\" wasn't " +
-                          "requested upon login, or the provider doesn't support id_tokens as part of the refresh response.");
-                  return originalToken;
-                }
-                return oAuthToken.idToken;
-              });
+          .thenCompose(openIdConfiguration -> refreshOpenIdToken(httpClient, currentAuthProviderConfig, openIdConfiguration))
+          .thenApply(oAuthToken -> persistOAuthToken(currentConfig, oAuthToken, null))
+          .thenApply(oAuthToken -> {
+            if (oAuthToken == null || Utils.isNullOrEmpty(oAuthToken.idToken)) {
+              LOGGER.warn("token response did not contain an id_token, either the scope \\\"openid\\\" wasn't " +
+                  "requested upon login, or the provider doesn't support id_tokens as part of the refresh response.");
+              return originalToken;
+            }
+            return oAuthToken.idToken;
+          });
       result.whenComplete((s, t) -> httpClient.close());
       return result;
     }
@@ -128,9 +129,9 @@ static boolean isTokenRefreshSupported(Map<String, String> currentAuthProviderCo
    * @return the OpenID Configuration as returned by the OpenID provider
    */
   private static CompletableFuture<OpenIdConfiguration> getOpenIdConfiguration(HttpClient client,
-                                                                               Map<String, String> authProviderConfig) {
+      Map<String, String> authProviderConfig) {
     final HttpRequest request = client.newHttpRequestBuilder()
-            .uri(resolveWellKnownUrlForOpenIDIssuer(authProviderConfig)).build();
+        .uri(resolveWellKnownUrlForOpenIDIssuer(authProviderConfig)).build();
     return client.sendAsync(request, String.class).thenApply(response -> {
       try {
         if (response.isSuccessful() && response.body() != null) {
@@ -151,13 +152,13 @@ private static CompletableFuture<OpenIdConfiguration> getOpenIdConfiguration(Htt
    * Issue Token Refresh HTTP Request to OIDC Provider
    */
   private static CompletableFuture<OAuthToken> refreshOpenIdToken(
-          HttpClient httpClient, Map<String, String> authProviderConfig, OpenIdConfiguration openIdConfiguration) {
+      HttpClient httpClient, Map<String, String> authProviderConfig, OpenIdConfiguration openIdConfiguration) {
     if (openIdConfiguration == null || Utils.isNullOrEmpty(openIdConfiguration.tokenEndpoint)) {
       LOGGER.warn("oidc: discovery object doesn't contain a valid token endpoint: {}", openIdConfiguration);
       return CompletableFuture.completedFuture(null);
     }
     final HttpRequest request = initTokenRefreshHttpRequest(httpClient, authProviderConfig,
-            openIdConfiguration.tokenEndpoint);
+        openIdConfiguration.tokenEndpoint);
     return httpClient.sendAsync(request, String.class).thenApply(r -> {
       String body = r.body();
       if (body != null) {
@@ -199,10 +200,11 @@ public static OAuthToken persistOAuthToken(Config currentConfig, OAuthToken oAut
   }
 
   private static void persistOAuthTokenToFile(Config currentConfig, String token, Map<String, String> authProviderConfig) {
-    if (currentConfig.getFile() != null && currentConfig.getCurrentContext() != null) {
+    if (currentConfig.getCurrentContext() != null
+        && currentConfig.getCurrentContext().getContext() != null) {
       try {
         final String userName = currentConfig.getCurrentContext().getContext().getUser();
-        KubeConfigFile kubeConfigFile = currentConfig.getFile(userName);
+        KubeConfigFile kubeConfigFile = currentConfig.getFileWithAuthInfo(userName);
         if (kubeConfigFile == null) {
           LOGGER.warn("oidc: failure while persisting new tokens into KUBECONFIG: file for user {} not found", userName);
           return;
@@ -217,7 +219,8 @@ private static void persistOAuthTokenToFile(Config currentConfig, String token,
     }
   }
 
-  private static void setAuthProviderAndToken(String token, Map<String, String> authProviderConfig, NamedAuthInfo namedAuthInfo) {
+  private static void setAuthProviderAndToken(String token, Map<String, String> authProviderConfig,
+      NamedAuthInfo namedAuthInfo) {
     if (namedAuthInfo.getUser() == null) {
       namedAuthInfo.setUser(new AuthInfo());
     }
@@ -230,21 +233,28 @@ private static void setAuthProviderAndToken(String token, Map<String, String> au
     }
   }
 
-  private static NamedAuthInfo getOrCreateNamedAuthInfo(String userName, io.fabric8.kubernetes.api.model.Config kubeConfig) {
+  private static NamedAuthInfo getOrCreateNamedAuthInfo(String name, io.fabric8.kubernetes.api.model.Config kubeConfig) {
     return kubeConfig.getUsers().stream()
-            .filter(n -> n.getName().equals(userName))
-            .findFirst()
-            .orElseGet(() -> {
-              NamedAuthInfo result = new NamedAuthInfo(userName, new AuthInfo());
-              kubeConfig.getUsers().add(result);
-              return result;
-            });
+        .filter(n -> n.getName().equals(name))
+        .findFirst()
+        .orElseGet(() -> {
+          NamedAuthInfo authInfo = new NamedAuthInfoBuilder()
+              .withName(name)
+              .withNewUser()
+              .endUser()
+              .build();
+          kubeConfig.getUsers().add(authInfo);
+          return authInfo;
+        });
   }
 
   private static void persistOAuthTokenToFile(AuthProviderConfig config, Map<String, String> authProviderConfig) {
+    if (config == null) {
+      return;
+    }
     Optional.of(config)
-            .map(AuthProviderConfig::getConfig)
-            .ifPresent(c -> c.putAll(authProviderConfig));
+        .map(AuthProviderConfig::getConfig)
+        .ifPresent(c -> c.putAll(authProviderConfig));
   }
 
   /**
@@ -268,19 +278,19 @@ private static HttpClient initHttpClientWithPemCert(String idpCert, HttpClient.B
       clientBuilder.sslContext(keyManagers, trustManagers);
       return clientBuilder.build();
     } catch (KeyStoreException | InvalidKeySpecException | NoSuchAlgorithmException | IOException | UnrecoverableKeyException
-             | CertificateException e) {
+        | CertificateException e) {
       throw KubernetesClientException.launderThrowable("Could not import idp certificate", e);
     }
   }
 
   private static HttpRequest initTokenRefreshHttpRequest(
-          HttpClient client, Map<String, String> authProviderConfig, String tokenRefreshUrl) {
+      HttpClient client, Map<String, String> authProviderConfig, String tokenRefreshUrl) {
 
     final String clientId = authProviderConfig.get(CLIENT_ID_KUBECONFIG);
     final String clientSecret = authProviderConfig.getOrDefault(CLIENT_SECRET_KUBECONFIG, "");
     final HttpRequest.Builder httpRequestBuilder = client.newHttpRequestBuilder().uri(tokenRefreshUrl);
     final String credentials = java.util.Base64.getEncoder().encodeToString((clientId + ':' + clientSecret)
-            .getBytes(StandardCharsets.UTF_8));
+        .getBytes(StandardCharsets.UTF_8));
     httpRequestBuilder.header("Authorization", "Basic " + credentials);
 
     final Map<String, String> requestBody = new LinkedHashMap<>();
@@ -305,8 +315,8 @@ public static boolean idTokenExpired(Config config) {
           Map<String, Object> jwtPayloadMap = Serialization.unmarshal(jwtPayloadDecoded, Map.class);
           int expiryTimestampInSeconds = (Integer) jwtPayloadMap.get(JWT_TOKEN_EXPIRY_TIMESTAMP_KEY);
           return Instant.ofEpochSecond(expiryTimestampInSeconds)
-                  .minusSeconds(TOKEN_EXPIRY_DELTA)
-                  .isBefore(Instant.now());
+              .minusSeconds(TOKEN_EXPIRY_DELTA)
+              .isBefore(Instant.now());
         } catch (Exception e) {
           return true;
         }

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/utils/Utils.java

@@ -36,6 +36,7 @@
 import java.util.AbstractMap;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
@@ -291,16 +292,32 @@ public static boolean isNullOrEmpty(String str) {
     return str == null || str.isEmpty();
   }
 
-  public static boolean isNotNullOrEmpty(Map map) {
-    return !(map == null || map.isEmpty());
+  public static boolean isNotNullOrEmpty(Map<?, ?> map) {
+    return !isNullOrEmpty(map);
+  }
+
+  public static boolean isNullOrEmpty(Map<?, ?> map) {
+    return map == null || map.isEmpty();
+  }
+
+  public static boolean isNotNullOrEmpty(Collection<?> collection) {
+    return !isNullOrEmpty(collection);
+  }
+
+  public static boolean isNullOrEmpty(Collection<?> collection) {
+    return collection == null || collection.isEmpty();
   }
 
   public static boolean isNotNullOrEmpty(String str) {
     return !isNullOrEmpty(str);
   }
 
   public static boolean isNotNullOrEmpty(String[] array) {
-    return !(array == null || array.length == 0);
+    return !isNullOrEmpty(array);
+  }
+
+  public static boolean isNullOrEmpty(String[] array) {
+    return array == null || array.length == 0;
   }
 
   public static <T> boolean isNotNull(T... refList) {