public static void initProcessSecurity(Configuration conf)
throws IOException, BadConfigException {
log.info("Secure mode with kerberos realm {}", HoyaUtils.getKerberosRealm());
// this gets UGI to reset its previous world view (i.e simple auth)
// security
SecurityUtil.setAuthenticationMethod(UserGroupInformation.AuthenticationMethod.KERBEROS, conf);
UserGroupInformation.setConfiguration(conf);
UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
log.debug("Authenticating as " + ugi.toString());
log.debug("Login user is {}", UserGroupInformation.getLoginUser());
if (!UserGroupInformation.isSecurityEnabled()) {
throw new BadConfigException(
"Although secure mode is enabled,"
+ "the application has already set up its user as an insecure entity %s",
ugi);
}
HoyaUtils.verifyPrincipalSet(conf, YarnConfiguration.RM_PRINCIPAL);
HoyaUtils.verifyPrincipalSet(conf, DFSConfigKeys.DFS_NAMENODE_USER_NAME_KEY);
}
/**
* Submit a JAR containing a specific class and map it
*
* @param providerResources provider map to build up
* @param clusterFS remote fs
* @param clazz class to look for
* @param libdir lib directory
* @param jarName <i>At the destination</i>
* @return the local resource ref
* @throws IOException trouble copying to HDFS
*/
public static LocalResource putJar(
Map<String, LocalResource> providerResources,
FileSystem clusterFS,
Class clazz,
Path tempPath,
String libdir,
String jarName)
throws IOException, HoyaException {
LocalResource res = HoyaUtils.submitJarWithClass(clusterFS, clazz, tempPath, libdir, jarName);
providerResources.put(libdir + "/" + jarName, res);
return res;
}
/**
* Query for the image path being set (non null/non empty)
*
* @return true if there is a path in the image path option
*/
@JsonIgnore
public boolean isImagePathSet() {
return HoyaUtils.isSet(getImagePath());
}
/**
* Verify that an option is set: that is defined AND non-empty
*
* @param key
* @throws BadConfigException
*/
public void verifyOptionSet(String key) throws BadConfigException {
if (HoyaUtils.isUnset(getOption(key, null))) {
throw new BadConfigException("Unset cluster option %s", key);
}
}