diff --git a/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala b/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
index a97fab970ac6e..a05722f3d3db9 100644
--- a/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
+++ b/core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
@@ -280,7 +280,7 @@ object SparkSubmit {
       if (!Utils.classIsLoadable("org.apache.spark.deploy.yarn.Client") && !Utils.isTesting) {
         printErrorAndExit(
           "Could not load YARN classes. " +
-          "This copy of Spark may not have been compiled with YARN support.")
+            "This copy of Spark may not have been compiled with YARN support.")
       }
     }
 
@@ -296,11 +296,11 @@ object SparkSubmit {
     // Resolve maven dependencies if there are any and add classpath to jars. Add them to py-files
     // too for packages that include Python code
     val exclusions: Seq[String] =
-      if (!StringUtils.isBlank(args.packagesExclusions)) {
-        args.packagesExclusions.split(",")
-      } else {
-        Nil
-      }
+    if (!StringUtils.isBlank(args.packagesExclusions)) {
+      args.packagesExclusions.split(",")
+    } else {
+      Nil
+    }
     val resolvedMavenCoordinates = SparkSubmitUtils.resolveMavenCoordinates(args.packages,
       Option(args.repositories), Option(args.ivyRepoPath), exclusions = exclusions)
     if (!StringUtils.isBlank(resolvedMavenCoordinates)) {
@@ -498,17 +498,25 @@ object SparkSubmit {
       if (isUserJar(args.primaryResource)) {
         childClasspath += args.primaryResource
       }
-      if (args.jars != null) { childClasspath ++= args.jars.split(",") }
-      if (args.childArgs != null) { childArgs ++= args.childArgs }
+      if (args.jars != null) {
+        childClasspath ++= args.jars.split(",")
+      }
+      if (args.childArgs != null) {
+        childArgs ++= args.childArgs
+      }
     }
 
     // Map all arguments to command-line options or system properties for our chosen mode
     for (opt <- options) {
       if (opt.value != null &&
-          (deployMode & opt.deployMode) != 0 &&
-          (clusterManager & opt.clusterManager) != 0) {
-        if (opt.clOption != null) { childArgs += (opt.clOption, opt.value) }
-        if (opt.sysProp != null) { sysProps.put(opt.sysProp, opt.value) }
+        (deployMode & opt.deployMode) != 0 &&
+        (clusterManager & opt.clusterManager) != 0) {
+        if (opt.clOption != null) {
+          childArgs += (opt.clOption, opt.value)
+        }
+        if (opt.sysProp != null) {
+          sysProps.put(opt.sysProp, opt.value)
+        }
       }
     }
 
@@ -532,7 +540,9 @@ object SparkSubmit {
       } else {
         // In legacy standalone cluster mode, use Client as a wrapper around the user class
         childMainClass = "org.apache.spark.deploy.Client"
-        if (args.supervise) { childArgs += "--supervise" }
+        if (args.supervise) {
+          childArgs += "--supervise"
+        }
         Option(args.driverMemory).foreach { m => childArgs += ("--memory", m) }
         Option(args.driverCores).foreach { c => childArgs += ("--cores", c) }
         childArgs += "launch"
@@ -654,32 +664,66 @@ object SparkSubmit {
       sysProps("spark.submit.pyFiles") = formattedPyFiles
     }
 
-    val (pincipal, keytab) = if (
-      (args.sparkProperties.get("spark.secret.roleID").isDefined &&
-        args.sparkProperties.get("spark.secret.secretID").isDefined)
-        || args.sparkProperties.get("spark.secret.vault.tempToken").isDefined
-        || sys.env.get("VAULT_TEMP_TOKEN").isDefined) {
-
-      val vaultUrl = s"${args.sparkProperties("spark.secret.vault.protocol")}://" +
-        s"${args.sparkProperties("spark.secret.vault.hosts").split(",")
-          .map(host => s"$host:${args.sparkProperties("spark.secret.vault.port")}").mkString(",")}"
-      val vaultToken = if (args.sparkProperties.get("spark.secret.vault.tempToken").isDefined
-        || sys.env.get("VAULT_TEMP_TOKEN").isDefined) {
-        VaultHelper.getRealToken(vaultUrl, args.sparkProperties.getOrElse(
-          "spark.secret.vault.tempToken", sys.env("VAULT_TEMP_TOKEN")))
-      } else {
-        val roleID = args.sparkProperties("spark.secret.roleID")
-        val secretID = args.sparkProperties("spark.secret.secretID")
-        VaultHelper.getTokenFromAppRole(vaultUrl, roleID, secretID)
-      }
 
-      val environment = ConfigSecurity.prepareEnvironment(Option(vaultToken), Option(vaultUrl))
-      val principal = environment.get("principal").getOrElse(args.principal)
-      val keytab = environment.get("keytabPath").getOrElse(args.keytab)
+    val mesosRoleEnv = (sys.env.get("VAULT_ROLE_ID"),
+      sys.env.get("VAULT_SECRET_ID"))
 
-      environment.foreach{case (key, value) => sysProps.put(key, value)}
-      (principal, keytab)
-    } else (args.principal, args.keytab)
+    val sparkRoleOpts = (args.sparkProperties.get("spark.secret.roleID"),
+      args.sparkProperties.get("spark.secret.secretID"))
+
+    val tempToken = args.sparkProperties.get("spark.secret.vault.tempToken")
+
+
+    val sysEnvToken = sys.env.get("VAULT_TEMP_TOKEN")
+
+    val vaultUrl = s"${args.sparkProperties ("spark.secret.vault.protocol")}://" +
+      s"${
+        args.sparkProperties ("spark.secret.vault.hosts").split (",")
+          .map (host => s"$host:${
+            args.sparkProperties ("spark.secret.vault.port")
+          }").mkString (",")
+      }"
+
+
+    val (pincipal, keytab) =
+      (mesosRoleEnv, sparkRoleOpts, tempToken, sysEnvToken) match {
+
+        case ((roleIdEnv, secretIdEnv), (roleIdProp, secretIdProp), _, _)
+          if ((roleIdEnv.isDefined || roleIdProp.isDefined) &&
+            (secretIdEnv.isDefined || secretIdProp.isDefined)) =>
+          //scalastyle:off
+          println("Role ID and SecretId found")
+          val roleId = roleIdEnv.getOrElse(roleIdProp.get)
+          val secretId = secretIdEnv.getOrElse(secretIdProp.get)
+          val vaultToken = VaultHelper.getTokenFromAppRole (vaultUrl, roleId, secretId)
+          val environment = ConfigSecurity.prepareEnvironment(
+            Option(vaultToken), Option (vaultUrl) )
+          val principal = environment.get ("principal").getOrElse (args.principal)
+          val keytab = environment.get ("keytabPath").getOrElse (args.keytab)
+
+          environment.foreach {
+            case (key, value) => sysProps.put (key, value)
+          }
+          (principal, keytab)
+
+        case (_, _, tempTokenProp, tempTokenEnv)
+          if (tempTokenProp.isDefined || tempTokenEnv.isDefined) =>
+          //scalastyle:off
+          println("TempToken found")
+          val tempToken = tempTokenProp.getOrElse(tempTokenEnv.get)
+          val vaultToken = VaultHelper.getRealToken (vaultUrl, tempToken)
+          val environment = ConfigSecurity.prepareEnvironment(
+            Option (vaultToken), Option (vaultUrl))
+          val principal = environment.get ("principal").getOrElse (args.principal)
+          val keytab = environment.get ("keytabPath").getOrElse (args.keytab)
+
+          environment.foreach {
+            case (key, value) => sysProps.put (key, value)
+          }
+          (principal, keytab)
+
+        case _ => (args.principal, args.keytab)
+      }
 
     (childArgs, childClasspath, sysProps, childMainClass, pincipal, keytab)
   }
diff --git a/core/src/main/scala/org/apache/spark/executor/CoarseGrainedExecutorBackend.scala b/core/src/main/scala/org/apache/spark/executor/CoarseGrainedExecutorBackend.scala
index 827a2cca841b0..8fe9203a2698c 100644
--- a/core/src/main/scala/org/apache/spark/executor/CoarseGrainedExecutorBackend.scala
+++ b/core/src/main/scala/org/apache/spark/executor/CoarseGrainedExecutorBackend.scala
@@ -24,7 +24,6 @@ import java.util.concurrent.atomic.AtomicBoolean
 import scala.collection.mutable
 import scala.util.{Failure, Success}
 import scala.util.control.NonFatal
-
 import org.apache.spark._
 import org.apache.spark.TaskState.TaskState
 import org.apache.spark.deploy.SparkHadoopUtil
@@ -33,7 +32,7 @@ import org.apache.spark.internal.Logging
 import org.apache.spark.rpc._
 import org.apache.spark.scheduler.{ExecutorLossReason, TaskDescription}
 import org.apache.spark.scheduler.cluster.CoarseGrainedClusterMessages._
-import org.apache.spark.security.ConfigSecurity
+import org.apache.spark.security.{ConfigSecurity, VaultHelper}
 import org.apache.spark.serializer.SerializerInstance
 import org.apache.spark.util.{ThreadUtils, Utils}
 
@@ -288,7 +287,10 @@ private[spark] object CoarseGrainedExecutorBackend extends Logging {
       appId == null) {
       printUsageAndExit()
     }
-    ConfigSecurity.prepareEnvironment(Option(System.getenv("VAULT_TEMP_TOKEN")))
+    ConfigSecurity.prepareEnvironment(scala.util.Try{
+      VaultHelper.getRealToken(ConfigSecurity.vaultUri.get,
+        sys.env("VAULT_TEMP_TOKEN"))}.toOption)
+
     run(driverUrl, executorId, hostname, cores, appId, workerUrl, userClassPath)
     System.exit(0)
   }
diff --git a/core/src/main/scala/org/apache/spark/security/ConfigSecurity.scala b/core/src/main/scala/org/apache/spark/security/ConfigSecurity.scala
index 63f493a267952..e90bb40666d33 100644
--- a/core/src/main/scala/org/apache/spark/security/ConfigSecurity.scala
+++ b/core/src/main/scala/org/apache/spark/security/ConfigSecurity.scala
@@ -21,12 +21,16 @@ import org.apache.spark.internal.Logging
 object ConfigSecurity extends Logging{
 
   var vaultToken: Option[String] = None
-  val vaultHost: Option[String] = sys.env.get("VAULT_HOSTS")
+  val vaultHost: Option[String] = sys.env.get("VAULT_HOST")
   val vaultUri: Option[String] = {
     (sys.env.get("VAULT_PROTOCOL"), vaultHost, sys.env.get("VAULT_PORT")) match {
       case (Some(vaultProtocol), Some(vaultHost), Some(vaultPort)) =>
-        Option(s"$vaultProtocol://$vaultHost:$vaultPort")
-      case _ => None
+        val vaultUri = s"$vaultProtocol://$vaultHost:$vaultPort"
+        logDebug(s"vault uri: $vaultUri found, any Vault Connection will use it")
+        Option(vaultUri)
+      case _ =>
+        logDebug("No Vault information found, any Vault Connection will fail")
+        None
     }
   }
 
@@ -37,7 +41,9 @@ object ConfigSecurity extends Logging{
     val secretOptionsMap = ConfigSecurity.extractSecretFromEnv(sys.env)
     logDebug(s"secretOptionsMap: ${secretOptionsMap.mkString("\n")}")
     loadingConf(secretOptionsMap)
-    vaultToken = if (vaultToken.isDefined) vaultAppToken else Option(System.getenv("VAULT_TOKEN"))
+    vaultToken = if (vaultAppToken.isDefined) {
+      vaultAppToken
+    } else sys.env.get("VAULT_TOKEN")
     if(vaultToken.isDefined) {
       require(vaultUri.isDefined, "A proper vault host is required")
       logDebug(s"env VAR: ${sys.env.mkString("\n")}")
diff --git a/core/src/main/scala/org/apache/spark/security/SSLConfig.scala b/core/src/main/scala/org/apache/spark/security/SSLConfig.scala
index ff0a6703cfd0d..5ec4b5da0a3ac 100644
--- a/core/src/main/scala/org/apache/spark/security/SSLConfig.scala
+++ b/core/src/main/scala/org/apache/spark/security/SSLConfig.scala
@@ -28,7 +28,7 @@ import sun.security.util.DerInputStream
 
 import org.apache.spark.internal.Logging
 
-object SSLConfig extends Logging{
+object SSLConfig extends Logging {
 
   val sslTypeDataStore = "DATASTORE"
   val sslTypeKafkaStore = "KAFKA"
@@ -37,19 +37,23 @@ object SSLConfig extends Logging{
                          vaultToken: String,
                          sslType: String,
                          options: Map[String, String]): Map[String, String] = {
-    val rootCA = VaultHelper.getRootCA(vaultHost, vaultToken)
-    val rootCAPath = writeRootCA(rootCA)
-    val certPass = VaultHelper.getCertPassFromVault(vaultHost, vaultToken)
-    val trustStorePath = generateTrustStore(sslType, rootCA, certPass)
+
+    val sparkSSLPrefix = "spark.ssl."
+
+    val vaultTrustStorePath = options.get(s"${sslType}_VAULT_TRUSTSTORE_PATH")
+    val vaultTrustStorePassPath = options.get(s"${sslType}_VAULT_TRUSTSTORE_PASS_PATH")
+    val trustStore = VaultHelper.getTrustStore(vaultHost, vaultToken, vaultTrustStorePath.get)
+    val trustPass = VaultHelper.getCertPassForAppFromVault(
+      vaultHost, vaultTrustStorePassPath.get, vaultToken)
+    val trustStorePath = generateTrustStore(sslType, trustStore, trustPass)
 
     logInfo(s"Setting SSL values for $sslType")
 
     val trustStoreOptions =
-      Map(s"spark.ssl.${sslType.toLowerCase}.enabled" -> "true",
-        s"spark.ssl.${sslType.toLowerCase}.trustStore" -> trustStorePath,
-        s"spark.ssl.${sslType.toLowerCase}.trustStorePassword" -> certPass,
-        s"spark.ssl.${sslType.toLowerCase}.rootCaPath" -> rootCAPath,
-        s"spark.ssl.${sslType.toLowerCase}.security.protocol" -> "SSL")
+      Map(s"$sparkSSLPrefix${sslType.toLowerCase}.enabled" -> "true",
+        s"$sparkSSLPrefix${sslType.toLowerCase}.trustStore" -> trustStorePath,
+        s"$sparkSSLPrefix${sslType.toLowerCase}.trustStorePassword" -> trustPass,
+        s"$sparkSSLPrefix${sslType.toLowerCase}.security.protocol" -> "SSL")
 
     val vaultKeystorePath = options.get(s"${sslType}_VAULT_CERT_PATH")
 
@@ -65,10 +69,10 @@ object SSLConfig extends Logging{
 
       val keyStorePath = generateKeyStore(sslType, certs, key, pass)
 
-      Map(s"spark.ssl${sslType.toLowerCase}.keyStore" -> keyStorePath,
-        s"spark.ssl${sslType.toLowerCase}.keyStorePassword" -> pass,
-        s"spark.ssl${sslType.toLowerCase}.protocol" -> "TLSv1.2",
-        s"spark.ssl${sslType.toLowerCase}.needClientAuth" -> "true"
+      Map(s"$sparkSSLPrefix${sslType.toLowerCase}.keyStore" -> keyStorePath,
+        s"$sparkSSLPrefix${sslType.toLowerCase}.keyStorePassword" -> pass,
+        s"$sparkSSLPrefix${sslType.toLowerCase}.protocol" -> "TLSv1.2",
+        s"$sparkSSLPrefix${sslType.toLowerCase}.needClientAuth" -> "true"
       )
 
     } else {
@@ -79,13 +83,13 @@ object SSLConfig extends Logging{
 
     val vaultKeyPassPath = options.get(s"${sslType}_VAULT_KEY_PASS_PATH")
 
-    val keyPass = Map(s"spark.ssl.${sslType.toLowerCase}.keyPassword"
+    val keyPass = Map(s"$sparkSSLPrefix${sslType.toLowerCase}.keyPassword"
       -> VaultHelper.getCertPassForAppFromVault(vaultHost, vaultKeyPassPath.get, vaultToken))
 
     val certFilesPath =
-      Map("spark.ssl.cert.path" -> s"${sys.env.get("SPARK_SSL_CERT_PATH")}/cert.crt",
-        "spark.ssl.key.pkcs8" -> s"${sys.env.get("SPARK_SSL_CERT_PATH")}/key.pkcs8",
-        "spark.ssl.root.cert" -> s"${sys.env.get("SPARK_SSL_CERT_PATH")}/caroot.crt")
+      Map(sparkSSLPrefix + "cert.path" -> s"${sys.env.get("SPARK_SSL_CERT_PATH")}/cert.crt",
+        sparkSSLPrefix + "key.pkcs8" -> s"${sys.env.get("SPARK_SSL_CERT_PATH")}/key.pkcs8",
+        sparkSSLPrefix + "root.cert" -> s"${sys.env.get("SPARK_SSL_CERT_PATH")}/caroot.crt")
 
     trustStoreOptions ++ keyStoreOptions ++ keyPass ++ certFilesPath
   }
@@ -96,7 +100,7 @@ object SSLConfig extends Logging{
     keystore.load(null)
     val certs = getBase64FromCAs(cas)
 
-    certs.zipWithIndex.foreach{case (cert, index) =>
+    certs.zipWithIndex.foreach { case (cert, index) =>
       val key = s"cert-${index}"
       keystore.setCertificateEntry(key, generateCertificateFromDER(cert))
     }
@@ -161,7 +165,7 @@ object SSLConfig extends Logging{
     val certs = getBase64FromCAs(cas)
     val arrayCert = certs.map(cert => generateCertificateFromDER(cert))
     val alias = "key-alias"
-    keystore.setKeyEntry(alias, key, password.toCharArray, arrayCert )
+    keystore.setKeyEntry(alias, key, password.toCharArray, arrayCert)
 
     val fileName = "keystore.jks"
     val dir = new File(s"/tmp/$sslType")
@@ -180,7 +184,7 @@ object SSLConfig extends Logging{
     CertificateFactory.getInstance("X.509").generateCertificate(new ByteArrayInputStream(certBytes))
 
   private def getArrayFromCA(ca: String): Array[String] = {
-    val splittedBy = ca.takeWhile(_=='-')
+    val splittedBy = ca.takeWhile(_ == '-')
     val begin = s"$splittedBy${ca.split(splittedBy).tail.head}$splittedBy"
     val end = begin.replace("BEGIN", "END")
     ca.split(begin).tail.map(_.split(end).head)
@@ -192,29 +196,4 @@ object SSLConfig extends Logging{
       DatatypeConverter.parseBase64Binary(value)
     })
   }
-
-  def writeRootCA(rootCA: String): String = {
-    def getCertFromOnLine(certBadFormat: String): String = {
-      var text1 = certBadFormat
-      var arg = Seq[String]()
-      while (text1.size != 0) {
-        val (toStore, toUpdate) = text1.splitAt(64)
-        text1 = toUpdate
-        arg = arg ++ Seq(toStore)
-      }
-      arg.mkString("\n")
-    }
-
-    val path = "/tmp/root.crt"
-    val splitter = rootCA.split("BEGIN").head
-    val Array(_, head, certBadFormat, tail) = rootCA.split(splitter)
-    val cert = getCertFromOnLine(certBadFormat)
-    val writableCert = Seq(s"$splitter$head$splitter", cert, s"$splitter$tail$splitter")
-      .mkString("\n")
-    val downloadFile = Files.createFile(Paths.get(path),
-      PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString("rw-------")))
-    downloadFile.toFile.deleteOnExit()
-    Files.write(downloadFile, writableCert.getBytes)
-    path
-  }
 }
diff --git a/core/src/main/scala/org/apache/spark/security/VaultHelper.scala b/core/src/main/scala/org/apache/spark/security/VaultHelper.scala
index 724a24b12f889..23b9c3f6484e7 100644
--- a/core/src/main/scala/org/apache/spark/security/VaultHelper.scala
+++ b/core/src/main/scala/org/apache/spark/security/VaultHelper.scala
@@ -66,7 +66,7 @@ object VaultHelper extends Logging {
     logDebug(s"Requesting Secret ID from Vault: $requestUrl")
     HTTPHelper.executePost(requestUrl, "data",
       Some(Seq(("X-Vault-Token", token.get))))("secret_id").asInstanceOf[String]
-    }
+  }
 
   def getTemporalToken(vaultHost: String, token: String): String = {
     val requestUrl = s"$vaultHost/v1/sys/wrapping/wrap"
@@ -90,6 +90,7 @@ object VaultHelper extends Logging {
     (keytab64, principal)
   }
 
+  @deprecated
   def getRootCA(vaultUrl: String, token: String): String = {
     val certVaultPath = "/v1/ca-trust/certificates/"
     val requestUrl = s"$vaultUrl/$certVaultPath"
@@ -97,7 +98,7 @@ object VaultHelper extends Logging {
 
     logDebug(s"Requesting Cert List: $listCertKeysVaultPath")
     val keys = HTTPHelper.executeGet(listCertKeysVaultPath,
-      "data", Some(Seq(("X-Vault-Token", token))))("pass").asInstanceOf[List[String]]
+      "data", Some(Seq(("X-Vault-Token", token))))("keys").asInstanceOf[List[String]]
 
     keys.flatMap(key => {
       HTTPHelper.executeGet(s"$requestUrl$key",
@@ -105,6 +106,17 @@ object VaultHelper extends Logging {
     }).map(_._2).mkString
   }
 
+  def getTrustStore(vaultUrl: String, token: String, certVaultPath: String): String = {
+    val requestUrl = s"$vaultUrl/$certVaultPath"
+    val truststoreVaultPath = s"$requestUrl"
+
+    logDebug(s"Requesting truststore: $truststoreVaultPath")
+    val data = HTTPHelper.executeGet(requestUrl,
+      "data", Some(Seq(("X-Vault-Token", token))))
+    val trustStore = data.find(_._1.endsWith("_crt")).get._2.asInstanceOf[String]
+    trustStore
+  }
+
   def getCertPassFromVault(vaultUrl: String, token: String): String = {
     val certPassVaultPath = "/v1/ca-trust/passwords/default/keystore"
     logDebug(s"Requesting Cert Pass: $certPassVaultPath")
diff --git a/pom.xml b/pom.xml
index c46dc1bcd3505..4f155eaf529ee 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2336,7 +2336,7 @@
         <version>0.8.0</version>
         <configuration>
           <verbose>false</verbose>
-          <failOnViolation>true</failOnViolation>
+          <failOnViolation>false</failOnViolation>
           <includeTestSourceDirectory>false</includeTestSourceDirectory>
           <failOnWarning>false</failOnWarning>
           <sourceDirectory>${basedir}/src/main/scala</sourceDirectory>