forked from fabric8io/kubernetes-client
/
Config.java
1233 lines (1043 loc) · 51.2 KB
/
Config.java
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/**
* 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 static okhttp3.TlsVersion.TLS_1_2;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.fabric8.kubernetes.api.model.AuthInfo;
import io.fabric8.kubernetes.api.model.Cluster;
import io.fabric8.kubernetes.api.model.ConfigBuilder;
import io.fabric8.kubernetes.api.model.Context;
import io.fabric8.kubernetes.api.model.ExecConfig;
import io.fabric8.kubernetes.api.model.ExecEnvVar;
import io.fabric8.kubernetes.api.model.NamedContext;
import io.fabric8.kubernetes.client.internal.CertUtils;
import io.fabric8.kubernetes.client.internal.KubeConfigUtils;
import io.fabric8.kubernetes.client.internal.SSLUtils;
import io.fabric8.kubernetes.client.utils.IOHelpers;
import io.fabric8.kubernetes.client.utils.Serialization;
import io.fabric8.kubernetes.client.utils.Utils;
import io.sundr.builder.annotations.Buildable;
import okhttp3.TlsVersion;
@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonIgnoreProperties(ignoreUnknown = true, allowGetters = true, allowSetters = true)
public class Config {
private static final Logger LOGGER = LoggerFactory.getLogger(Config.class);
/**
* Disables auto-configuration based on opinionated defaults in a {@link Config} object in the default constructor
*/
public static final String KUBERNETES_DISABLE_AUTO_CONFIG_SYSTEM_PROPERTY = "kubernetes.disable.autoConfig";
public static final String KUBERNETES_MASTER_SYSTEM_PROPERTY = "kubernetes.master";
public static final String KUBERNETES_API_VERSION_SYSTEM_PROPERTY = "kubernetes.api.version";
public static final String KUBERNETES_TRUST_CERT_SYSTEM_PROPERTY = "kubernetes.trust.certificates";
public static final String KUBERNETES_DISABLE_HOSTNAME_VERIFICATION_SYSTEM_PROPERTY = "kubernetes.disable.hostname.verification";
public static final String KUBERNETES_CA_CERTIFICATE_FILE_SYSTEM_PROPERTY = "kubernetes.certs.ca.file";
public static final String KUBERNETES_CA_CERTIFICATE_DATA_SYSTEM_PROPERTY = "kubernetes.certs.ca.data";
public static final String KUBERNETES_CLIENT_CERTIFICATE_FILE_SYSTEM_PROPERTY = "kubernetes.certs.client.file";
public static final String KUBERNETES_CLIENT_CERTIFICATE_DATA_SYSTEM_PROPERTY = "kubernetes.certs.client.data";
public static final String KUBERNETES_CLIENT_KEY_FILE_SYSTEM_PROPERTY = "kubernetes.certs.client.key.file";
public static final String KUBERNETES_CLIENT_KEY_DATA_SYSTEM_PROPERTY = "kubernetes.certs.client.key.data";
public static final String KUBERNETES_CLIENT_KEY_ALGO_SYSTEM_PROPERTY = "kubernetes.certs.client.key.algo";
public static final String KUBERNETES_CLIENT_KEY_PASSPHRASE_SYSTEM_PROPERTY = "kubernetes.certs.client.key.passphrase";
public static final String KUBERNETES_AUTH_BASIC_USERNAME_SYSTEM_PROPERTY = "kubernetes.auth.basic.username";
public static final String KUBERNETES_AUTH_BASIC_PASSWORD_SYSTEM_PROPERTY = "kubernetes.auth.basic.password";
public static final String KUBERNETES_AUTH_TRYKUBECONFIG_SYSTEM_PROPERTY = "kubernetes.auth.tryKubeConfig";
public static final String KUBERNETES_AUTH_TRYSERVICEACCOUNT_SYSTEM_PROPERTY = "kubernetes.auth.tryServiceAccount";
public static final String KUBERNETES_OAUTH_TOKEN_SYSTEM_PROPERTY = "kubernetes.auth.token";
public static final String KUBERNETES_WATCH_RECONNECT_INTERVAL_SYSTEM_PROPERTY = "kubernetes.watch.reconnectInterval";
public static final String KUBERNETES_WATCH_RECONNECT_LIMIT_SYSTEM_PROPERTY = "kubernetes.watch.reconnectLimit";
public static final String KUBERNETES_CONNECTION_TIMEOUT_SYSTEM_PROPERTY = "kubernetes.connection.timeout";
public static final String KUBERNETES_REQUEST_TIMEOUT_SYSTEM_PROPERTY = "kubernetes.request.timeout";
public static final String KUBERNETES_ROLLING_TIMEOUT_SYSTEM_PROPERTY = "kubernetes.rolling.timeout";
public static final String KUBERNETES_LOGGING_INTERVAL_SYSTEM_PROPERTY = "kubernetes.logging.interval";
public static final String KUBERNETES_SCALE_TIMEOUT_SYSTEM_PROPERTY = "kubernetes.scale.timeout";
public static final String KUBERNETES_WEBSOCKET_TIMEOUT_SYSTEM_PROPERTY = "kubernetes.websocket.timeout";
public static final String KUBERNETES_WEBSOCKET_PING_INTERVAL_SYSTEM_PROPERTY = "kubernetes.websocket.ping.interval";
public static final String KUBERNETES_MAX_CONCURRENT_REQUESTS ="kubernetes.max.concurrent.requests";
public static final String KUBERNETES_MAX_CONCURRENT_REQUESTS_PER_HOST ="kubernetes.max.concurrent.requests.per.host";
public static final String KUBERNETES_IMPERSONATE_USERNAME = "kubernetes.impersonate.username";
public static final String KUBERNETES_IMPERSONATE_GROUP = "kubernetes.impersonate.group";
public static final String KUBERNETES_TRUSTSTORE_PASSPHRASE_PROPERTY = "kubernetes.truststore.passphrase";
public static final String KUBERNETES_TRUSTSTORE_FILE_PROPERTY = "kubernetes.truststore.file";
public static final String KUBERNETES_KEYSTORE_PASSPHRASE_PROPERTY = "kubernetes.keystore.passphrase";
public static final String KUBERNETES_KEYSTORE_FILE_PROPERTY = "kubernetes.keystore.file";
public static final String KUBERNETES_TLS_VERSIONS = "kubernetes.tls.versions";
public static final String KUBERNETES_TRYNAMESPACE_PATH_SYSTEM_PROPERTY = "kubernetes.tryNamespacePath";
public static final String KUBERNETES_NAMESPACE_PATH = "/var/run/secrets/kubernetes.io/serviceaccount/namespace";
public static final String KUBERNETES_NAMESPACE_FILE = "kubenamespace";
public static final String KUBERNETES_NAMESPACE_SYSTEM_PROPERTY = "kubernetes.namespace";
public static final String KUBERNETES_KUBECONFIG_FILE = "kubeconfig";
public static final String KUBERNETES_SERVICE_HOST_PROPERTY = "KUBERNETES_SERVICE_HOST";
public static final String KUBERNETES_SERVICE_PORT_PROPERTY = "KUBERNETES_SERVICE_PORT";
public static final String KUBERNETES_SERVICE_ACCOUNT_TOKEN_PATH = "/var/run/secrets/kubernetes.io/serviceaccount/token";
public static final String KUBERNETES_SERVICE_ACCOUNT_CA_CRT_PATH = "/var/run/secrets/kubernetes.io/serviceaccount/ca.crt";
public static final String KUBERNETES_HTTP2_DISABLE = "http2.disable";
public static final String KUBERNETES_HTTP_PROXY = "http.proxy";
public static final String KUBERNETES_HTTPS_PROXY = "https.proxy";
public static final String KUBERNETES_ALL_PROXY = "all.proxy";
public static final String KUBERNETES_NO_PROXY = "no.proxy";
public static final String KUBERNETES_PROXY_USERNAME = "proxy.username";
public static final String KUBERNETES_PROXY_PASSWORD = "proxy.password";
public static final String KUBERNETES_USER_AGENT = "fabric8-kubernetes-client/" + Version.clientVersion() ;
public static final String DEFAULT_MASTER_URL = "https://kubernetes.default.svc";
public static final Long DEFAULT_ROLLING_TIMEOUT = 15 * 60 * 1000L;
public static final Long DEFAULT_SCALE_TIMEOUT = 10 * 60 * 1000L;
public static final int DEFAULT_LOGGING_INTERVAL = 20 * 1000;
public static final Long DEFAULT_WEBSOCKET_TIMEOUT = 5 * 1000L;
public static final Long DEFAULT_WEBSOCKET_PING_INTERVAL = 30 * 1000L;
public static final Integer DEFAULT_MAX_CONCURRENT_REQUESTS = 64;
public static final Integer DEFAULT_MAX_CONCURRENT_REQUESTS_PER_HOST = 5;
public static final String HTTP_PROTOCOL_PREFIX = "http://";
public static final String HTTPS_PROTOCOL_PREFIX = "https://";
private static final String ACCESS_TOKEN = "access-token";
private static final String ID_TOKEN = "id-token";
private boolean trustCerts;
private boolean disableHostnameVerification;
private String masterUrl = DEFAULT_MASTER_URL;
private String apiVersion = "v1";
private String namespace;
private String caCertFile;
private String caCertData;
private String clientCertFile;
private String clientCertData;
private String clientKeyFile;
private String clientKeyData;
private String clientKeyAlgo = "RSA";
private String clientKeyPassphrase = "changeit";
private String trustStoreFile;
private String trustStorePassphrase;
private String keyStoreFile;
private String keyStorePassphrase;
private RequestConfig requestConfig = new RequestConfig();
private List<NamedContext> contexts = new ArrayList<>();
private NamedContext currentContext = null;
/**
* fields not used but needed for builder generation.
*/
private String username;
private String password;
private String oauthToken;
private int watchReconnectInterval = 1000;
private int watchReconnectLimit = -1;
private int connectionTimeout = 10 * 1000;
private int requestTimeout = 10 * 1000;
private long rollingTimeout = DEFAULT_ROLLING_TIMEOUT;
private long scaleTimeout = DEFAULT_SCALE_TIMEOUT;
private int loggingInterval = DEFAULT_LOGGING_INTERVAL;
private long websocketTimeout = DEFAULT_WEBSOCKET_TIMEOUT;
private long websocketPingInterval = DEFAULT_WEBSOCKET_PING_INTERVAL;
private int maxConcurrentRequests = DEFAULT_MAX_CONCURRENT_REQUESTS;
private int maxConcurrentRequestsPerHost = DEFAULT_MAX_CONCURRENT_REQUESTS_PER_HOST;
private String impersonateUsername;
private OAuthTokenProvider oauthTokenProvider;
/**
* @deprecated use impersonateGroups instead
*/
@Deprecated
private String impersonateGroup;
private String[] impersonateGroups;
private Map<String, List<String>> impersonateExtras;
/**
* end of fields not used but needed for builder generation.
*/
private boolean http2Disable;
private String httpProxy;
private String httpsProxy;
private String proxyUsername;
private String proxyPassword;
private String[] noProxy;
private String userAgent;
private TlsVersion[] tlsVersions = new TlsVersion[]{TLS_1_2};
private Map<Integer, String> errorMessages = new HashMap<>();
/**
* custom headers
*/
private Map<String,String> customHeaders = null;
private Boolean autoConfigure = Boolean.FALSE;
/**
* @deprecated use {@link #autoConfigure(String)} or {@link ConfigBuilder} instead
*/
@Deprecated
public Config() {
this(!Utils.getSystemPropertyOrEnvVar(KUBERNETES_DISABLE_AUTO_CONFIG_SYSTEM_PROPERTY, false));
}
private Config(Boolean autoConfigure) {
if (Boolean.TRUE.equals(autoConfigure)) {
this.autoConfigure = Boolean.TRUE;
autoConfigure(this, null);
}
}
/**
* Create an empty {@link Config} class without any automatic configuration
* (i.e. reading system properties/environment variables to load defaults.)
* You can also reuse this object to build your own {@link Config} object
* without any auto configuration like this:
*
* <pre>{@code
* Config configFromBuilder = new ConfigBuilder(Config.empty())
* // ...
* .build();
* }</pre>
*
* @return a Config object without any automatic configuration
*/
public static Config empty() {
return new Config(false);
}
/**
* Does auto detection with some opinionated defaults.
*
* @param context if null will use current-context
* @return Config object
*/
public static Config autoConfigure(String context) {
Config config = new Config();
return autoConfigure(config, context);
}
private static Config autoConfigure(Config config, String context) {
if (!tryKubeConfig(config, context)) {
tryServiceAccount(config);
tryNamespaceFromPath(config);
}
configFromSysPropsOrEnvVars(config);
config.masterUrl = ensureHttps(config.masterUrl, config);
config.masterUrl = ensureEndsWithSlash(config.masterUrl);
return config;
}
private static String ensureEndsWithSlash(String masterUrl) {
if (!masterUrl.endsWith("/")) {
masterUrl = masterUrl + "/";
}
return masterUrl;
}
private static String ensureHttps(String masterUrl, Config config) {
if (!masterUrl.toLowerCase(Locale.ROOT).startsWith(HTTP_PROTOCOL_PREFIX)
&& !masterUrl.toLowerCase(Locale.ROOT).startsWith(HTTPS_PROTOCOL_PREFIX)) {
masterUrl = (SSLUtils.isHttpsAvailable(config) ? HTTPS_PROTOCOL_PREFIX : HTTP_PROTOCOL_PREFIX) + masterUrl;
}
return masterUrl;
}
@Deprecated
public Config(String masterUrl, String apiVersion, String namespace, boolean trustCerts, boolean disableHostnameVerification, String caCertFile, String caCertData, String clientCertFile, String clientCertData, String clientKeyFile, String clientKeyData, String clientKeyAlgo, String clientKeyPassphrase, String username, String password, String oauthToken, int watchReconnectInterval, int watchReconnectLimit, int connectionTimeout, int requestTimeout, long rollingTimeout, long scaleTimeout, int loggingInterval, int maxConcurrentRequestsPerHost, String httpProxy, String httpsProxy, String[] noProxy, Map<Integer, String> errorMessages, String userAgent, TlsVersion[] tlsVersions, long websocketTimeout, long websocketPingInterval, String proxyUsername, String proxyPassword, String trustStoreFile, String trustStorePassphrase, String keyStoreFile, String keyStorePassphrase, String impersonateUsername, String[] impersonateGroups, Map<String, List<String>> impersonateExtras) {
this(masterUrl, apiVersion, namespace, trustCerts, disableHostnameVerification, caCertFile, caCertData, clientCertFile, clientCertData, clientKeyFile, clientKeyData, clientKeyAlgo, clientKeyPassphrase, username, password, oauthToken, watchReconnectInterval, watchReconnectLimit, connectionTimeout, requestTimeout, rollingTimeout, scaleTimeout, loggingInterval, maxConcurrentRequestsPerHost, false, httpProxy, httpsProxy, noProxy, errorMessages, userAgent, tlsVersions, websocketTimeout, websocketPingInterval, proxyUsername, proxyPassword, trustStoreFile, trustStorePassphrase, keyStoreFile, keyStorePassphrase, impersonateUsername, impersonateGroups, impersonateExtras, null,null);
}
@Buildable(builderPackage = "io.fabric8.kubernetes.api.builder", editableEnabled = false)
public Config(String masterUrl, String apiVersion, String namespace, boolean trustCerts, boolean disableHostnameVerification, String caCertFile, String caCertData, String clientCertFile, String clientCertData, String clientKeyFile, String clientKeyData, String clientKeyAlgo, String clientKeyPassphrase, String username, String password, String oauthToken, int watchReconnectInterval, int watchReconnectLimit, int connectionTimeout, int requestTimeout, long rollingTimeout, long scaleTimeout, int loggingInterval, int maxConcurrentRequestsPerHost, boolean http2Disable, String httpProxy, String httpsProxy, String[] noProxy, Map<Integer, String> errorMessages, String userAgent, TlsVersion[] tlsVersions, long websocketTimeout, long websocketPingInterval, String proxyUsername, String proxyPassword, String trustStoreFile, String trustStorePassphrase, String keyStoreFile, String keyStorePassphrase, String impersonateUsername, String[] impersonateGroups, Map<String, List<String>> impersonateExtras, OAuthTokenProvider oauthTokenProvider,Map<String,String> customHeaders) {
this.masterUrl = masterUrl;
this.apiVersion = apiVersion;
this.namespace = namespace;
this.trustCerts = trustCerts;
this.disableHostnameVerification = disableHostnameVerification;
this.caCertFile = caCertFile;
this.caCertData = caCertData;
this.clientCertFile = clientCertFile;
this.clientCertData = clientCertData;
this.clientKeyFile = clientKeyFile;
this.clientKeyData = clientKeyData;
this.clientKeyAlgo = clientKeyAlgo;
this.clientKeyPassphrase = clientKeyPassphrase;
this.requestConfig = new RequestConfig(username, password, oauthToken, watchReconnectLimit, watchReconnectInterval, connectionTimeout, rollingTimeout, requestTimeout, scaleTimeout, loggingInterval, websocketTimeout, websocketPingInterval, maxConcurrentRequests, maxConcurrentRequestsPerHost, oauthTokenProvider);
this.requestConfig.setImpersonateUsername(impersonateUsername);
this.requestConfig.setImpersonateGroups(impersonateGroups);
this.requestConfig.setImpersonateExtras(impersonateExtras);
this.http2Disable = http2Disable;
this.httpProxy= httpProxy;
this.httpsProxy= httpsProxy;
this.noProxy= noProxy;
this.proxyUsername = proxyUsername;
this.proxyPassword = proxyPassword;
this.errorMessages = errorMessages;
this.userAgent = userAgent;
this.tlsVersions = tlsVersions;
if (!this.masterUrl.toLowerCase(Locale.ROOT).startsWith(HTTP_PROTOCOL_PREFIX) && !this.masterUrl.startsWith(HTTPS_PROTOCOL_PREFIX)) {
this.masterUrl = (SSLUtils.isHttpsAvailable(this) ? HTTPS_PROTOCOL_PREFIX : HTTP_PROTOCOL_PREFIX) + this.masterUrl;
}
if (!this.masterUrl.endsWith("/")) {
this.masterUrl = this.masterUrl + "/";
}
this.trustStoreFile = trustStoreFile;
this.trustStorePassphrase = trustStorePassphrase;
this.keyStoreFile = keyStoreFile;
this.keyStorePassphrase = keyStorePassphrase;
this.oauthTokenProvider = oauthTokenProvider;
this.customHeaders = customHeaders;
}
public static void configFromSysPropsOrEnvVars(Config config) {
config.setTrustCerts(Utils.getSystemPropertyOrEnvVar(KUBERNETES_TRUST_CERT_SYSTEM_PROPERTY, config.isTrustCerts()));
config.setDisableHostnameVerification(Utils.getSystemPropertyOrEnvVar(KUBERNETES_DISABLE_HOSTNAME_VERIFICATION_SYSTEM_PROPERTY, config.isDisableHostnameVerification()));
config.setMasterUrl(Utils.getSystemPropertyOrEnvVar(KUBERNETES_MASTER_SYSTEM_PROPERTY, config.getMasterUrl()));
config.setApiVersion(Utils.getSystemPropertyOrEnvVar(KUBERNETES_API_VERSION_SYSTEM_PROPERTY, config.getApiVersion()));
config.setNamespace(Utils.getSystemPropertyOrEnvVar(KUBERNETES_NAMESPACE_SYSTEM_PROPERTY, config.getNamespace()));
config.setCaCertFile(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CA_CERTIFICATE_FILE_SYSTEM_PROPERTY, config.getCaCertFile()));
config.setCaCertData(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CA_CERTIFICATE_DATA_SYSTEM_PROPERTY, config.getCaCertData()));
config.setClientCertFile(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CLIENT_CERTIFICATE_FILE_SYSTEM_PROPERTY, config.getClientCertFile()));
config.setClientCertData(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CLIENT_CERTIFICATE_DATA_SYSTEM_PROPERTY, config.getClientCertData()));
config.setClientKeyFile(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CLIENT_KEY_FILE_SYSTEM_PROPERTY, config.getClientKeyFile()));
config.setClientKeyData(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CLIENT_KEY_DATA_SYSTEM_PROPERTY, config.getClientKeyData()));
config.setClientKeyAlgo(getKeyAlgorithm(config.getClientKeyFile(), config.getClientKeyData()));
config.setClientKeyPassphrase(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CLIENT_KEY_PASSPHRASE_SYSTEM_PROPERTY, new String(config.getClientKeyPassphrase())));
config.setUserAgent(Utils.getSystemPropertyOrEnvVar(KUBERNETES_USER_AGENT, config.getUserAgent()));
config.setTrustStorePassphrase(Utils.getSystemPropertyOrEnvVar(KUBERNETES_TRUSTSTORE_PASSPHRASE_PROPERTY, config.getTrustStorePassphrase()));
config.setTrustStoreFile(Utils.getSystemPropertyOrEnvVar(KUBERNETES_TRUSTSTORE_FILE_PROPERTY, config.getTrustStoreFile()));
config.setKeyStorePassphrase(Utils.getSystemPropertyOrEnvVar(KUBERNETES_KEYSTORE_PASSPHRASE_PROPERTY, config.getKeyStorePassphrase()));
config.setKeyStoreFile(Utils.getSystemPropertyOrEnvVar(KUBERNETES_KEYSTORE_FILE_PROPERTY, config.getKeyStoreFile()));
config.setOauthToken(Utils.getSystemPropertyOrEnvVar(KUBERNETES_OAUTH_TOKEN_SYSTEM_PROPERTY, config.getOauthToken()));
config.setUsername(Utils.getSystemPropertyOrEnvVar(KUBERNETES_AUTH_BASIC_USERNAME_SYSTEM_PROPERTY, config.getUsername()));
config.setPassword(Utils.getSystemPropertyOrEnvVar(KUBERNETES_AUTH_BASIC_PASSWORD_SYSTEM_PROPERTY, config.getPassword()));
config.setImpersonateUsername(Utils.getSystemPropertyOrEnvVar(KUBERNETES_IMPERSONATE_USERNAME, config.getImpersonateUsername()));
String configuredImpersonateGroups = Utils.getSystemPropertyOrEnvVar(KUBERNETES_IMPERSONATE_GROUP, config.getImpersonateGroup());
if (configuredImpersonateGroups != null) {
config.setImpersonateGroups(configuredImpersonateGroups.split(","));
}
String configuredWatchReconnectInterval = Utils.getSystemPropertyOrEnvVar(KUBERNETES_WATCH_RECONNECT_INTERVAL_SYSTEM_PROPERTY);
if (configuredWatchReconnectInterval != null) {
config.setWatchReconnectInterval(Integer.parseInt(configuredWatchReconnectInterval));
}
String configuredWatchReconnectLimit = Utils.getSystemPropertyOrEnvVar(KUBERNETES_WATCH_RECONNECT_LIMIT_SYSTEM_PROPERTY);
if (configuredWatchReconnectLimit != null) {
config.setWatchReconnectLimit(Integer.parseInt(configuredWatchReconnectLimit));
}
String configuredRollingTimeout = Utils.getSystemPropertyOrEnvVar(KUBERNETES_ROLLING_TIMEOUT_SYSTEM_PROPERTY, String.valueOf(DEFAULT_ROLLING_TIMEOUT));
if (configuredRollingTimeout != null) {
config.setRollingTimeout(Long.parseLong(configuredRollingTimeout));
}
String configuredScaleTimeout = Utils.getSystemPropertyOrEnvVar(KUBERNETES_SCALE_TIMEOUT_SYSTEM_PROPERTY, String.valueOf(DEFAULT_SCALE_TIMEOUT));
if (configuredScaleTimeout != null) {
config.setScaleTimeout(Long.parseLong(configuredScaleTimeout));
}
String configuredLoggingInterval = Utils.getSystemPropertyOrEnvVar(KUBERNETES_LOGGING_INTERVAL_SYSTEM_PROPERTY, String.valueOf(DEFAULT_LOGGING_INTERVAL));
if (configuredLoggingInterval != null) {
config.setLoggingInterval(Integer.parseInt(configuredLoggingInterval));
}
config.setConnectionTimeout(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CONNECTION_TIMEOUT_SYSTEM_PROPERTY, config.getConnectionTimeout()));
config.setRequestTimeout(Utils.getSystemPropertyOrEnvVar(KUBERNETES_REQUEST_TIMEOUT_SYSTEM_PROPERTY, config.getRequestTimeout()));
String configuredWebsocketTimeout = Utils.getSystemPropertyOrEnvVar(KUBERNETES_WEBSOCKET_TIMEOUT_SYSTEM_PROPERTY, String.valueOf(config.getWebsocketTimeout()));
if (configuredWebsocketTimeout != null) {
config.setWebsocketTimeout(Long.parseLong(configuredWebsocketTimeout));
}
String configuredWebsocketPingInterval = Utils.getSystemPropertyOrEnvVar(KUBERNETES_WEBSOCKET_PING_INTERVAL_SYSTEM_PROPERTY, String.valueOf(config.getWebsocketPingInterval()));
if (configuredWebsocketPingInterval != null) {
config.setWebsocketPingInterval(Long.parseLong(configuredWebsocketPingInterval));
}
String configuredMaxConcurrentReqeustsPerHost = Utils.getSystemPropertyOrEnvVar(KUBERNETES_MAX_CONCURRENT_REQUESTS_PER_HOST, String.valueOf(config.getMaxConcurrentRequestsPerHost()));
if (configuredMaxConcurrentReqeustsPerHost != null) {
config.setMaxConcurrentRequestsPerHost(Integer.parseInt(configuredMaxConcurrentReqeustsPerHost));
}
config.setHttp2Disable(Utils.getSystemPropertyOrEnvVar(KUBERNETES_HTTP2_DISABLE, config.isHttp2Disable()));
config.setHttpProxy(Utils.getSystemPropertyOrEnvVar(KUBERNETES_ALL_PROXY, config.getHttpProxy()));
config.setHttpsProxy(Utils.getSystemPropertyOrEnvVar(KUBERNETES_ALL_PROXY, config.getHttpsProxy()));
config.setHttpsProxy(Utils.getSystemPropertyOrEnvVar(KUBERNETES_HTTPS_PROXY, config.getHttpsProxy()));
config.setHttpProxy(Utils.getSystemPropertyOrEnvVar(KUBERNETES_HTTP_PROXY, config.getHttpProxy()));
config.setProxyUsername(Utils.getSystemPropertyOrEnvVar(KUBERNETES_PROXY_USERNAME, config.getProxyUsername()));
config.setProxyPassword(Utils.getSystemPropertyOrEnvVar(KUBERNETES_PROXY_PASSWORD, config.getProxyPassword()));
String noProxyVar = Utils.getSystemPropertyOrEnvVar(KUBERNETES_NO_PROXY);
if (noProxyVar != null) {
config.setNoProxy(noProxyVar.split(","));
}
String tlsVersionsVar = Utils.getSystemPropertyOrEnvVar(KUBERNETES_TLS_VERSIONS);
if (tlsVersionsVar != null && !tlsVersionsVar.isEmpty()) {
String[] tlsVersionsSplit = tlsVersionsVar.split(",");
TlsVersion[] tlsVersions = new TlsVersion[tlsVersionsSplit.length];
for (int i = 0; i < tlsVersionsSplit.length; i++) {
tlsVersions[i] = TlsVersion.forJavaName(tlsVersionsSplit[i]);
}
config.setTlsVersions(tlsVersions);
}
}
private static boolean tryServiceAccount(Config config) {
LOGGER.debug("Trying to configure client from service account...");
String masterHost = Utils.getSystemPropertyOrEnvVar(KUBERNETES_SERVICE_HOST_PROPERTY, (String) null);
String masterPort = Utils.getSystemPropertyOrEnvVar(KUBERNETES_SERVICE_PORT_PROPERTY, (String) null);
if (masterHost != null && masterPort != null) {
String hostPort = joinHostPort(masterHost, masterPort);
LOGGER.debug("Found service account host and port: " + hostPort);
config.setMasterUrl("https://" + hostPort);
}
if (Utils.getSystemPropertyOrEnvVar(KUBERNETES_AUTH_TRYSERVICEACCOUNT_SYSTEM_PROPERTY, true)) {
boolean serviceAccountCaCertExists = Files.isRegularFile(new File(KUBERNETES_SERVICE_ACCOUNT_CA_CRT_PATH).toPath());
if (serviceAccountCaCertExists) {
LOGGER.debug("Found service account ca cert at: ["+KUBERNETES_SERVICE_ACCOUNT_CA_CRT_PATH+"].");
config.setCaCertFile(KUBERNETES_SERVICE_ACCOUNT_CA_CRT_PATH);
} else {
LOGGER.debug("Did not find service account ca cert at: ["+KUBERNETES_SERVICE_ACCOUNT_CA_CRT_PATH+"].");
}
try {
String serviceTokenCandidate = new String(Files.readAllBytes(new File(KUBERNETES_SERVICE_ACCOUNT_TOKEN_PATH).toPath()));
LOGGER.debug("Found service account token at: ["+KUBERNETES_SERVICE_ACCOUNT_TOKEN_PATH+"].");
config.setOauthToken(serviceTokenCandidate);
String txt = "Configured service account doesn't have access. Service account may have been revoked.";
config.getErrorMessages().put(401, "Unauthorized! " + txt);
config.getErrorMessages().put(403, "Forbidden!" + txt);
return true;
} catch (IOException e) {
// No service account token available...
LOGGER.warn("Error reading service account token from: [{}]. Ignoring.", KUBERNETES_SERVICE_ACCOUNT_TOKEN_PATH);
}
}
return false;
}
private static String joinHostPort(String host, String port) {
if (host.indexOf(':') >= 0) {
// Host is an IPv6
return "[" + host + "]:" + port;
}
return host + ":" + port;
}
private static String absolutify(File relativeTo, String filename) {
if (filename == null) {
return null;
}
File file = new File(filename);
if (file.isAbsolute()) {
return file.getAbsolutePath();
}
return new File(relativeTo.getParentFile(), filename).getAbsolutePath();
}
public static Config fromKubeconfig(String kubeconfigContents) throws IOException {
return fromKubeconfig(null, kubeconfigContents, null);
}
// Note: kubeconfigPath is optional (see note on loadFromKubeConfig)
public static Config fromKubeconfig(String context, String kubeconfigContents, String kubeconfigPath) {
// we allow passing context along here, since downstream accepts it
Config config = new Config();
loadFromKubeconfig(config, context, kubeconfigContents, kubeconfigPath);
return config;
}
private static boolean tryKubeConfig(Config config, String context) {
LOGGER.debug("Trying to configure client from Kubernetes config...");
if (!Utils.getSystemPropertyOrEnvVar(KUBERNETES_AUTH_TRYKUBECONFIG_SYSTEM_PROPERTY, true)) {
return false;
}
File kubeConfigFile = new File(getKubeconfigFilename());
if (!kubeConfigFile.isFile()) {
LOGGER.debug("Did not find Kubernetes config at: [{}]. Ignoring.", kubeConfigFile.getPath());
return false;
}
LOGGER.debug("Found for Kubernetes config at: [{}].", kubeConfigFile.getPath());
String kubeconfigContents = getKubeconfigContents(kubeConfigFile);
if (kubeconfigContents == null) {
return false;
}
loadFromKubeconfig(config, context, kubeconfigContents, kubeConfigFile.getPath());
return true;
}
private static String getKubeconfigFilename() {
String fileName = Utils.getSystemPropertyOrEnvVar(KUBERNETES_KUBECONFIG_FILE, new File(getHomeDir(), ".kube" + File.separator + "config").toString());
// if system property/env var contains multiple files take the first one based on the environment
// we are running in (eg. : for Linux, ; for Windows)
String[] fileNames = fileName.split(File.pathSeparator);
if (fileNames.length > 1) {
LOGGER.warn("Found multiple Kubernetes config files [{}], using the first one: [{}]. If not desired file, please change it by doing `export KUBECONFIG=/path/to/kubeconfig` on Unix systems or `$Env:KUBECONFIG=/path/to/kubeconfig` on Windows.", fileNames, fileNames[0]);
fileName = fileNames[0];
}
return fileName;
}
private static String getKubeconfigContents(File kubeConfigFile) {
String kubeconfigContents = null;
try (FileReader reader = new FileReader(kubeConfigFile)){
kubeconfigContents = IOHelpers.readFully(reader);
} catch(IOException e) {
LOGGER.error("Could not load Kubernetes config file from {}", kubeConfigFile.getPath(), e);
return null;
}
return kubeconfigContents;
}
// Note: kubeconfigPath is optional
// It is only used to rewrite relative tls asset paths inside kubeconfig when a file is passed, and in the case that
// the kubeconfig references some assets via relative paths.
private static boolean loadFromKubeconfig(Config config, String context, String kubeconfigContents, String kubeconfigPath) {
try {
io.fabric8.kubernetes.api.model.Config kubeConfig = KubeConfigUtils.parseConfigFromString(kubeconfigContents);
config.setContexts(kubeConfig.getContexts());
Context currentContext = setCurrentContext(context, config, kubeConfig);
Cluster currentCluster = KubeConfigUtils.getCluster(kubeConfig, currentContext);
if (currentContext != null) {
config.setNamespace(currentContext.getNamespace());
}
if (currentCluster != null) {
config.setMasterUrl(currentCluster.getServer());
config.setTrustCerts(currentCluster.getInsecureSkipTlsVerify() != null && currentCluster.getInsecureSkipTlsVerify());
config.setDisableHostnameVerification(currentCluster.getInsecureSkipTlsVerify() != null && currentCluster.getInsecureSkipTlsVerify());
config.setCaCertData(currentCluster.getCertificateAuthorityData());
AuthInfo currentAuthInfo = KubeConfigUtils.getUserAuthInfo(kubeConfig, currentContext);
if (currentAuthInfo != null) {
// rewrite tls asset paths if needed
String caCertFile = currentCluster.getCertificateAuthority();
String clientCertFile = currentAuthInfo.getClientCertificate();
String clientKeyFile = currentAuthInfo.getClientKey();
if (kubeconfigPath != null && !kubeconfigPath.isEmpty()) {
caCertFile = absolutify(new File(kubeconfigPath), currentCluster.getCertificateAuthority());
clientCertFile = absolutify(new File(kubeconfigPath), currentAuthInfo.getClientCertificate());
clientKeyFile = absolutify(new File(kubeconfigPath), currentAuthInfo.getClientKey());
}
config.setCaCertFile(caCertFile);
config.setClientCertFile(clientCertFile);
config.setClientCertData(currentAuthInfo.getClientCertificateData());
config.setClientKeyFile(clientKeyFile);
config.setClientKeyData(currentAuthInfo.getClientKeyData());
config.setOauthToken(currentAuthInfo.getToken());
config.setUsername(currentAuthInfo.getUsername());
config.setPassword(currentAuthInfo.getPassword());
if (Utils.isNullOrEmpty(config.getOauthToken()) && currentAuthInfo.getAuthProvider() != null) {
if (currentAuthInfo.getAuthProvider().getConfig() != null) {
if (!Utils.isNullOrEmpty(currentAuthInfo.getAuthProvider().getConfig().get(ACCESS_TOKEN))) {
// GKE token
config.setOauthToken(currentAuthInfo.getAuthProvider().getConfig().get(ACCESS_TOKEN));
} else if (!Utils.isNullOrEmpty(currentAuthInfo.getAuthProvider().getConfig().get(ID_TOKEN))) {
// OpenID Connect token
config.setOauthToken(currentAuthInfo.getAuthProvider().getConfig().get(ID_TOKEN));
}
}
} else if (config.getOauthTokenProvider() == null) { // https://kubernetes.io/docs/reference/access-authn-authz/authentication/#client-go-credential-plugins
ExecConfig exec = currentAuthInfo.getExec();
if (exec != null) {
String apiVersion = exec.getApiVersion();
if ("client.authentication.k8s.io/v1alpha1".equals(apiVersion) || "client.authentication.k8s.io/v1beta1".equals(apiVersion)) {
List<String> argv = new ArrayList<String>();
String command = exec.getCommand();
if (command.contains("/") && !command.startsWith("/") && kubeconfigPath != null && !kubeconfigPath.isEmpty()) {
// Appears to be a relative path; normalize. Spec is vague about how to detect this situation.
command = Paths.get(kubeconfigPath).resolveSibling(command).normalize().toString();
}
argv.add(command);
List<String> args = exec.getArgs();
if (args != null) {
argv.addAll(args);
}
ProcessBuilder pb = new ProcessBuilder(argv);
List<ExecEnvVar> env = exec.getEnv();
if (env != null) {
Map<String, String> environment = pb.environment();
env.forEach(var -> environment.put(var.getName(), var.getValue()));
}
// TODO check behavior of tty & stdin
Process p = pb.start();
if (p.waitFor() != 0) {
LOGGER.warn(IOHelpers.readFully(p.getErrorStream()));
}
ExecCredential ec = Serialization.unmarshal(p.getInputStream(), ExecCredential.class);
if (!apiVersion.equals(ec.apiVersion)) {
LOGGER.warn("Wrong apiVersion {} vs. {}", ec.apiVersion, apiVersion);
}
if (ec.status != null && ec.status.token != null) {
config.setOauthToken(ec.status.token);
} else {
LOGGER.warn("No token returned");
}
} else { // TODO v1beta1?
LOGGER.warn("Unsupported apiVersion: {}", apiVersion);
}
}
}
config.getErrorMessages().put(401, "Unauthorized! Token may have expired! Please log-in again.");
config.getErrorMessages().put(403, "Forbidden! User " + (currentContext != null? currentContext.getUser() : "") + " doesn't have permission.");
}
return true;
}
} catch (Exception e) {
LOGGER.error("Failed to parse the kubeconfig.", e);
}
return false;
}
private static Context setCurrentContext(String context, Config config, io.fabric8.kubernetes.api.model.Config kubeConfig) {
if (context != null) {
kubeConfig.setCurrentContext(context);
}
Context currentContext = null;
NamedContext currentNamedContext = KubeConfigUtils.getCurrentContext(kubeConfig);
if (currentNamedContext != null) {
config.setCurrentContext(currentNamedContext);
currentContext = currentNamedContext.getContext();
}
return currentContext;
}
@JsonIgnoreProperties(ignoreUnknown = true)
private static final class ExecCredential {
public String kind;
public String apiVersion;
public ExecCredentialSpec spec;
public ExecCredentialStatus status;
}
@JsonIgnoreProperties(ignoreUnknown = true)
private static final class ExecCredentialSpec {}
@JsonIgnoreProperties(ignoreUnknown = true)
private static final class ExecCredentialStatus {
public String token;
// TODO clientCertificateData, clientKeyData, expirationTimestamp
}
private static boolean tryNamespaceFromPath(Config config) {
LOGGER.debug("Trying to configure client namespace from Kubernetes service account namespace path...");
if (Utils.getSystemPropertyOrEnvVar(KUBERNETES_TRYNAMESPACE_PATH_SYSTEM_PROPERTY, true)) {
String serviceAccountNamespace = Utils.getSystemPropertyOrEnvVar(KUBERNETES_NAMESPACE_FILE, KUBERNETES_NAMESPACE_PATH);
boolean serviceAccountNamespaceExists = Files.isRegularFile(new File(serviceAccountNamespace).toPath());
if (serviceAccountNamespaceExists) {
LOGGER.debug("Found service account namespace at: [" + serviceAccountNamespace + "].");
try {
String namespace = new String(Files.readAllBytes(new File(serviceAccountNamespace).toPath()));
config.setNamespace(namespace.replace(System.lineSeparator(), ""));
return true;
} catch (IOException e) {
LOGGER.error("Error reading service account namespace from: [" + serviceAccountNamespace + "].", e);
}
} else {
LOGGER.debug("Did not find service account namespace at: [" + serviceAccountNamespace + "]. Ignoring.");
}
}
return false;
}
private static String getHomeDir() {
String osName = System.getProperty("os.name").toLowerCase(Locale.ROOT);
if (osName.startsWith("win")) {
String homeDrive = System.getenv("HOMEDRIVE");
String homePath = System.getenv("HOMEPATH");
if (homeDrive != null && !homeDrive.isEmpty() && homePath != null && !homePath.isEmpty()) {
String homeDir = homeDrive + homePath;
File f = new File(homeDir);
if (f.exists() && f.isDirectory()) {
return homeDir;
}
}
String userProfile = System.getenv("USERPROFILE");
if (userProfile != null && !userProfile.isEmpty()) {
File f = new File(userProfile);
if (f.exists() && f.isDirectory()) {
return userProfile;
}
}
}
String home = System.getenv("HOME");
if (home != null && !home.isEmpty()) {
File f = new File(home);
if (f.exists() && f.isDirectory()) {
return home;
}
}
//Fall back to user.home should never really get here
return System.getProperty("user.home", ".");
}
public static String getKeyAlgorithm(InputStream inputStream) throws IOException {
try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream))) {
String line, algorithm = null;
while ((line = bufferedReader.readLine()) != null) {
if (line.contains("BEGIN EC PRIVATE KEY"))
algorithm = "EC";
else if (line.contains("BEGIN RSA PRIVATE KEY")) {
algorithm = "RSA";
}
}
return algorithm;
}
}
public static String getKeyAlgorithm(String clientKeyFile, String clientKeyData) {
// Check if any system property is set
if(Utils.getSystemPropertyOrEnvVar(KUBERNETES_CLIENT_KEY_ALGO_SYSTEM_PROPERTY) != null) {
return Utils.getSystemPropertyOrEnvVar(KUBERNETES_CLIENT_KEY_ALGO_SYSTEM_PROPERTY);
}
// Detect algorithm
try {
InputStream keyInputStream = CertUtils.getInputStreamFromDataOrFile(clientKeyData, clientKeyFile);
if(keyInputStream != null) {
return getKeyAlgorithm(keyInputStream);
}
} catch(IOException exception) {
LOGGER.debug("Failure in determining private key algorithm type, defaulting to RSA ", exception.getMessage());
}
return null;
}
@JsonProperty("oauthToken")
public String getOauthToken() {
return getRequestConfig().getOauthToken();
}
public void setOauthToken(String oauthToken) {
this.requestConfig.setOauthToken(oauthToken);
}
@JsonProperty("password")
public String getPassword() {
return getRequestConfig().getPassword();
}
public void setPassword(String password) {
this.requestConfig.setPassword(password);
}
@JsonProperty("username")
public String getUsername() {
return getRequestConfig().getUsername();
}
public void setUsername(String username) {
this.requestConfig.setUsername(username);
}
@JsonProperty("impersonateUsername")
public String getImpersonateUsername() {
return getRequestConfig().getImpersonateUsername();
}
public void setImpersonateUsername(String impersonateUsername) {
this.requestConfig.setImpersonateUsername(impersonateUsername);
}
@JsonProperty("impersonateGroups")
public String[] getImpersonateGroups() {
return getRequestConfig().getImpersonateGroups();
}
public void setImpersonateGroups(String... impersonateGroup) {
this.requestConfig.setImpersonateGroups(impersonateGroup);
}
/**
* @deprecated Use {@link #getImpersonateGroups()} instead
* @return returns string of impersonate group
*/
@Deprecated
@JsonProperty("impersonateGroup")
public String getImpersonateGroup() {
return getRequestConfig().getImpersonateGroup();
}
/**
* @param impersonateGroup ImpersonateGroup string
* @deprecated Use {@link #setImpersonateGroups(String...)} instead
*/
@Deprecated
public void setImpersonateGroup(String impersonateGroup) {
this.requestConfig.setImpersonateGroups(impersonateGroup);
}
@JsonProperty("impersonateExtras")
public Map<String, List<String>> getImpersonateExtras() {
return getRequestConfig().getImpersonateExtras();
}
public void setImpersonateExtras(Map<String, List<String>> impersonateExtras) {
this.requestConfig.setImpersonateExtras(impersonateExtras);
}
@JsonProperty("clientKeyPassphrase")
public String getClientKeyPassphrase() {
return clientKeyPassphrase;
}
public void setClientKeyPassphrase(String clientKeyPassphrase) {
this.clientKeyPassphrase = clientKeyPassphrase;
}
@JsonProperty("clientKeyAlgo")
public String getClientKeyAlgo() {
return clientKeyAlgo;
}
public void setClientKeyAlgo(String clientKeyAlgo) {
this.clientKeyAlgo = clientKeyAlgo;
}
@JsonProperty("clientKeyData")
public String getClientKeyData() {
return clientKeyData;
}
public void setClientKeyData(String clientKeyData) {
this.clientKeyData = clientKeyData;
}
@JsonProperty("clientKeyFile")
public String getClientKeyFile() {
return clientKeyFile;
}
public void setClientKeyFile(String clientKeyFile) {
this.clientKeyFile = clientKeyFile;
}
@JsonProperty("clientCertData")
public String getClientCertData() {
return clientCertData;
}
public void setClientCertData(String clientCertData) {
this.clientCertData = clientCertData;
}
@JsonProperty("clientCertFile")
public String getClientCertFile() {
return clientCertFile;
}
public void setClientCertFile(String clientCertFile) {
this.clientCertFile = clientCertFile;
}
@JsonProperty("caCertData")
public String getCaCertData() {
return caCertData;
}
public void setCaCertData(String caCertData) {
this.caCertData = caCertData;
}
@JsonProperty("caCertFile")
public String getCaCertFile() {
return caCertFile;
}
public void setCaCertFile(String caCertFile) {
this.caCertFile = caCertFile;
}
@JsonProperty("apiVersion")
public String getApiVersion() {
return apiVersion;
}
public void setApiVersion(String apiVersion) {
this.apiVersion = apiVersion;
}
@JsonProperty("masterUrl")
public String getMasterUrl() {
return masterUrl;
}
public void setMasterUrl(String masterUrl) {
this.masterUrl = masterUrl;
}
@JsonProperty("trustCerts")
public boolean isTrustCerts() {
return trustCerts;
}
public void setTrustCerts(boolean trustCerts) {
this.trustCerts = trustCerts;
}
@JsonProperty("disableHostnameVerification")
public boolean isDisableHostnameVerification() {
return disableHostnameVerification;
}
public void setDisableHostnameVerification(boolean disableHostnameVerification) {
this.disableHostnameVerification = disableHostnameVerification;
}
@JsonProperty("watchReconnectInterval")
public int getWatchReconnectInterval() {
return requestConfig.getWatchReconnectInterval();
}
public void setWatchReconnectInterval(int watchReconnectInterval) {
this.requestConfig.setWatchReconnectInterval(watchReconnectInterval);
}
@JsonProperty("watchReconnectLimit")
public int getWatchReconnectLimit() {
return getRequestConfig().getWatchReconnectLimit();
}
public void setWatchReconnectLimit(int watchReconnectLimit) {
this.requestConfig.setWatchReconnectLimit(watchReconnectLimit);
}
@JsonProperty("errorMessages")
public Map<Integer, String> getErrorMessages() {
return errorMessages;
}
public void setErrorMessages(Map<Integer, String> errorMessages) {
this.errorMessages = errorMessages;
}
public static ConfigBuilder builder() {
return new ConfigBuilder();
}
@JsonProperty("connectionTimeout")
public int getConnectionTimeout() {
return getRequestConfig().getConnectionTimeout();
}
public void setConnectionTimeout(int connectionTimeout) {
this.requestConfig.setConnectionTimeout(connectionTimeout);
}
@JsonProperty("requestTimeout")
public int getRequestTimeout() {
return getRequestConfig().getRequestTimeout();
}
public void setRequestTimeout(int requestTimeout) {
this.requestConfig.setRequestTimeout(requestTimeout);
}
@JsonProperty("rollingTimeout")
public long getRollingTimeout() {
return getRequestConfig().getRollingTimeout();