Allow Chronos jobs to override taskInfo data

- Add 'taskInfoData' field to Chronos jobs
- If specified on a job, this data is placed in the
  data field of the taskInfo object, which is passed
  to the mesos executor.
- If not specified, then default Chronos task data
  is used (as per previous behaviour).

docs/docs/api.md

@@ -323,6 +323,7 @@ When specifying the `command` field in your job hash, use `url-runner.bash` (mak
 | `epsilon`             | If, for any reason, a job can't be started at the scheduled time, this is the window in which Chronos will attempt to run the job again | `PT60S` or `--task_epsilon`   |
 | `executor`            | Mesos executor.  By default Chronos uses the Mesos command executor.                                     | -                              |
 | `executorFlags`       | Flags to pass to Mesos executor.                                                                         | -                              |
+| `taskInfoData`        | Data to pass to the taskInfo data field.  If set, this overrides the default data set by Chronos.   | -                              |
 | `retries`             | Number of retries to attempt if a command returns a non-zero status                                      | `2`                            |
 | `owner`               | Email address(es) to send job failure notifications.  Use comma-separated list for multiple addresses.     | -                              |
 | `ownerName`           | Name of the individual responsible for the job.                                                          | -                              |

src/main/scala/org/apache/mesos/chronos/scheduler/api/JobManagementResource.scala

@@ -80,6 +80,7 @@ class JobManagementResource @Inject()(val jobScheduler: JobScheduler,
                       errorCount = childJob.errorCount,
                       executor = childJob.executor,
                       executorFlags = childJob.executorFlags,
+                      taskInfoData = childJob.taskInfoData,
                       retries = childJob.retries,
                       owner = childJob.owner,
                       lastError = childJob.lastError,

src/main/scala/org/apache/mesos/chronos/scheduler/jobs/JobUtils.scala

@@ -160,73 +160,11 @@ object JobUtils {
     }
   }
 
-  def getJobWithArguments(job: BaseJob, arguments: String): BaseJob = {
+  def getJobWithArguments(job : BaseJob, arguments: String): BaseJob = {
     val commandWithArgs = job.command + " " + arguments
-    val jobWithArguments = job match {
-      case j: DependencyBasedJob =>
-        new DependencyBasedJob(
-          parents = Set(),
-          name = job.name,
-          command = commandWithArgs,
-          epsilon = job.epsilon,
-          successCount = job.successCount,
-          errorCount = job.errorCount,
-          executor = job.executor,
-          executorFlags = job.executorFlags,
-          retries = job.retries,
-          owner = job.owner,
-          lastError = job.lastError,
-          lastSuccess = job.lastSuccess,
-          async = job.async,
-          cpus = job.cpus,
-          disk = job.disk,
-          mem = job.mem,
-          disabled = job.disabled,
-          errorsSinceLastSuccess = job.errorsSinceLastSuccess,
-          softError = job.softError,
-          uris = job.uris,
-          fetch = job.fetch,
-          highPriority = job.highPriority,
-          runAsUser = job.runAsUser,
-          container = job.container,
-          environmentVariables = job.environmentVariables,
-          shell = job.shell,
-          arguments = job.arguments,
-          constraints = job.constraints
-        )
-      case j: ScheduleBasedJob =>
-        new ScheduleBasedJob(
-          schedule = j.schedule,
-          scheduleTimeZone = j.scheduleTimeZone,
-          name = job.name,
-          command = commandWithArgs,
-          epsilon = job.epsilon,
-          successCount = job.successCount,
-          errorCount = job.errorCount,
-          executor = job.executor,
-          executorFlags = job.executorFlags,
-          retries = job.retries,
-          owner = job.owner,
-          lastError = job.lastError,
-          lastSuccess = job.lastSuccess,
-          async = job.async,
-          cpus = job.cpus,
-          disk = job.disk,
-          mem = job.mem,
-          disabled = job.disabled,
-          errorsSinceLastSuccess = job.errorsSinceLastSuccess,
-          softError = job.softError,
-          uris = job.uris,
-          fetch = job.fetch,
-          highPriority = job.highPriority,
-          runAsUser = job.runAsUser,
-          container = job.container,
-          environmentVariables = job.environmentVariables,
-          shell = job.shell,
-          arguments = job.arguments,
-          constraints = job.constraints
-        )
+    job match {
+      case j: DependencyBasedJob => j.copy(command = commandWithArgs)
+      case j: ScheduleBasedJob => j.copy(command = commandWithArgs)
     }
-    jobWithArguments
   }
 }

src/main/scala/org/apache/mesos/chronos/scheduler/jobs/Jobs.scala

@@ -37,6 +37,8 @@ trait BaseJob {
 
   def executorFlags: String = ""
 
+  def taskInfoData: String = ""
+
   def retries: Int = 2
 
   def owner: String = ""
@@ -95,6 +97,7 @@ case class ScheduleBasedJob(
                              @JsonProperty override val errorCount: Long = 0L,
                              @JsonProperty override val executor: String = "",
                              @JsonProperty override val executorFlags: String = "",
+                             @JsonProperty override val taskInfoData: String = "",
                              @JsonProperty override val retries: Int = 2,
                              @JsonProperty override val owner: String = "",
                              @JsonProperty override val ownerName: String = "",
@@ -132,6 +135,7 @@ case class DependencyBasedJob(
                                @JsonProperty override val errorCount: Long = 0L,
                                @JsonProperty override val executor: String = "",
                                @JsonProperty override val executorFlags: String = "",
+                               @JsonProperty override val taskInfoData: String = "",
                                @JsonProperty override val retries: Int = 2,
                                @JsonProperty override val owner: String = "",
                                @JsonProperty override val ownerName: String = "",

src/main/scala/org/apache/mesos/chronos/scheduler/mesos/MesosTaskBuilder.scala

@@ -179,7 +179,7 @@ class MesosTaskBuilder @Inject()(val conf: SchedulerConfiguration) {
       .build()).build
   }
 
-  def appendExecutorData(taskInfo: TaskInfo.Builder, job: BaseJob, environment: Environment.Builder, uriProtos: Seq[CommandInfo.URI]) {
+  private def appendExecutorData(taskInfo: TaskInfo.Builder, job: BaseJob, environment: Environment.Builder, uriProtos: Seq[CommandInfo.URI]) {
     log.info("Appending executor:" + job.executor + ", flags:" + job.executorFlags + ", command:" + job.command)
     val command = CommandInfo.newBuilder()
       .setValue(job.executor)
@@ -194,14 +194,15 @@ class MesosTaskBuilder @Inject()(val conf: SchedulerConfiguration) {
     if (job.container != null) {
       executor.setContainer(createContainerInfo(job))
     }
-    taskInfo.setExecutor(executor)
-      .setData(getDataBytes(job.executorFlags, job.command))
+    taskInfo.setExecutor(executor).setData(getDataBytes(job))
   }
 
-  def getDataBytes(executorFlags: String, executorArgs: String) = {
-    val dataStr = executorArgsPattern.format(executorFlags, executorArgs)
-    ByteString.copyFrom(dataStr.getBytes(Charsets.UTF_8))
+  private def getDataBytes(job : BaseJob) : ByteString = {
+    val string = if (job.taskInfoData != "") {
+      job.taskInfoData
+    } else {
+      executorArgsPattern.format(job.executorFlags, job.command)
+    }
+    ByteString.copyFrom(string.getBytes(Charsets.UTF_8))
   }
-
-  def getExecutorName(x: String) = "%s".format(x)
 }

src/main/scala/org/apache/mesos/chronos/utils/JobDeserializer.scala

@@ -41,11 +41,14 @@ class JobDeserializer extends JsonDeserializer[BaseJob] {
       if (node.has("executor") && node.get("executor") != null) node.get("executor").asText
       else ""
 
-
     val executorFlags =
       if (node.has("executorFlags") && node.get("executorFlags") != null) node.get("executorFlags").asText
       else ""
 
+    val taskInfoData =
+      if (node.has("taskInfoData") && node.get("taskInfoData") != null) node.get("taskInfoData").asText
+      else ""
+
     val retries =
       if (node.has("retries") && node.get("retries") != null) node.get("retries").asInt
       else 2
@@ -216,7 +219,7 @@ class JobDeserializer extends JsonDeserializer[BaseJob] {
       }
       new DependencyBasedJob(parents = parentList.toSet,
         name = name, command = command, epsilon = epsilon, successCount = successCount, errorCount = errorCount,
-        executor = executor, executorFlags = executorFlags, retries = retries, owner = owner,
+        executor = executor, executorFlags = executorFlags, taskInfoData = taskInfoData, retries = retries, owner = owner,
         ownerName = ownerName, description = description, lastError = lastError, lastSuccess = lastSuccess,
         async = async, cpus = cpus, disk = disk, mem = mem, disabled = disabled,
         errorsSinceLastSuccess = errorsSinceLastSuccess, fetch = fetch, uris = uris, highPriority = highPriority,
@@ -227,7 +230,7 @@ class JobDeserializer extends JsonDeserializer[BaseJob] {
       val scheduleTimeZone = if (node.has("scheduleTimeZone")) node.get("scheduleTimeZone").asText else ""
       new ScheduleBasedJob(node.get("schedule").asText, name = name, command = command,
         epsilon = epsilon, successCount = successCount, errorCount = errorCount, executor = executor,
-        executorFlags = executorFlags, retries = retries, owner = owner, ownerName = ownerName,
+        executorFlags = executorFlags, taskInfoData = taskInfoData, retries = retries, owner = owner, ownerName = ownerName,
         description = description, lastError = lastError, lastSuccess = lastSuccess, async = async,
         cpus = cpus, disk = disk, mem = mem, disabled = disabled,
         errorsSinceLastSuccess = errorsSinceLastSuccess, fetch = fetch, uris = uris,  highPriority = highPriority,
@@ -237,7 +240,7 @@ class JobDeserializer extends JsonDeserializer[BaseJob] {
     } else {
       /* schedule now */
       new ScheduleBasedJob("R1//PT24H", name = name, command = command, epsilon = epsilon, successCount = successCount,
-        errorCount = errorCount, executor = executor, executorFlags = executorFlags, retries = retries, owner = owner,
+        errorCount = errorCount, executor = executor, executorFlags = executorFlags, taskInfoData = taskInfoData, retries = retries, owner = owner,
         ownerName = ownerName, description = description, lastError = lastError, lastSuccess = lastSuccess,
         async = async, cpus = cpus, disk = disk, mem = mem, disabled = disabled,
         errorsSinceLastSuccess = errorsSinceLastSuccess, fetch = fetch, uris = uris,  highPriority = highPriority,

src/main/scala/org/apache/mesos/chronos/utils/JobSerializer.scala

@@ -31,6 +31,9 @@ class JobSerializer extends JsonSerializer[BaseJob] {
     json.writeFieldName("executorFlags")
     json.writeString(baseJob.executorFlags)
 
+    json.writeFieldName("taskInfoData")
+    json.writeString(baseJob.taskInfoData)
+
     json.writeFieldName("retries")
     json.writeNumber(baseJob.retries)
 

src/test/scala/org/apache/mesos/chronos/scheduler/api/SerDeTest.scala

@@ -46,7 +46,7 @@ class SerDeTest extends SpecificationWithJUnit {
       val fetch = Seq(Fetch("https://mesos.github.io/chronos/", true, false, true))
 
       val a = new DependencyBasedJob(Set("B", "C", "D", "E"), "A", "noop", Minutes.minutes(5).toPeriod, 10L,
-        20L, "fooexec", "fooflags", 7, "[email protected]", "Foo", "Test dependency-based job", "TODAY",
+        20L, "fooexec", "fooflags", "", 7, "[email protected]", "Foo", "Test dependency-based job", "TODAY",
         "YESTERDAY", true, container = container, environmentVariables = environmentVariables,
         shell = false, arguments = arguments, softError = true, constraints = constraints, fetch = fetch)
 
@@ -90,7 +90,7 @@ class SerDeTest extends SpecificationWithJUnit {
       val fetch = Seq(Fetch("https://mesos.github.io/chronos/", true, false, true))
 
       val a = new ScheduleBasedJob("FOO/BAR/BAM", "A", "noop", Minutes.minutes(5).toPeriod, 10L, 20L,
-        "fooexec", "fooflags", 7, "[email protected]", "Foo", "Test schedule-based job", "TODAY",
+        "fooexec", "fooflags", "", 7, "[email protected]", "Foo", "Test schedule-based job", "TODAY",
         "YESTERDAY", true, container = container, environmentVariables = environmentVariables,
         shell = true, arguments = arguments, softError = true, constraints = constraints, fetch = fetch)
 

src/test/scala/org/apache/mesos/chronos/scheduler/state/PersistenceStoreSpec.scala

@@ -14,13 +14,14 @@ class PersistenceStoreSpec extends SpecificationWithJUnit with Mockito {
       val startTime = "R1/2012-01-01T00:00:01.000Z/PT1M"
       val job = new ScheduleBasedJob(schedule = startTime, name = "sample-name",
         command = "sample-command", successCount = 1L, epsilon = Hours.hours(1).toPeriod,
-        executor = "fooexecutor", executorFlags = "args")
+        executor = "fooexecutor", executorFlags = "args", taskInfoData = "SomeData")
 
       store.persistJob(job)
       val job2 = store.getJob(job.name)
 
       job2.name must_== job.name
       job2.executor must_== job.executor
+      job2.taskInfoData must_== job.taskInfoData
       job2.successCount must_== job.successCount
       job2.command must_== job.command
 
@@ -36,7 +37,7 @@ class PersistenceStoreSpec extends SpecificationWithJUnit with Mockito {
         name = "sample-dep", command = "sample-command",
         epsilon = epsilon, softError = true,
         successCount = 1L, errorCount = 0L,
-        executor = "fooexecutor", executorFlags = "-w",
+        executor = "fooexecutor", executorFlags = "-w", taskInfoData="SomeData",
         retries = 1, disabled = false)
 
       store.persistJob(job)
@@ -49,6 +50,7 @@ class PersistenceStoreSpec extends SpecificationWithJUnit with Mockito {
       job2.errorCount must_== job.errorCount
       job2.executor must_== job.executor
       job2.executorFlags must_== job.executorFlags
+      job2.taskInfoData must_== job.taskInfoData
       job2.retries must_== job.retries
       job2.disabled must_== job.disabled
     }