# There can only be a single job definition per file.
# Create a job with ID and Name 'example'
job "example" {
  # Run the job in the global region, which is the default.
  # region = "global"

  # Specify the datacenters within the region this job can run in.
  datacenters = ["dc1"]

  # Service type jobs optimize for long-lived services. This is
  # the default but we can change to batch for short-lived tasks.
  # type = "service"

  # Priority controls our access to resources and scheduling priority.
  # This can be 1 to 100, inclusively, and defaults to 50.
  # priority = 50

  # Restrict our job to only linux. We can specify multiple
  # constraints as needed.
  constraint {
    attribute = "${attr.kernel.name}"
    value = "linux"
  }

  # Configure the job to do rolling updates
  update {
    # Stagger updates every 10 seconds
    stagger = "10s"

    # Update a single task at a time
    max_parallel = 1
  }

  # Create a 'cache' group. Each task in the group will be
  # scheduled onto the same machine.
  group "cache" {
    # Control the number of instances of this groups.
    # Defaults to 1
    count = 4

    # Configure the restart policy for the task group. If not provided, a
    # default is used based on the job type.
    restart {
      # The number of attempts to run the job within the specified interval.
      attempts = 10
      interval = "5m"

      # A delay between a task failing and a restart occurring.
      delay = "25s"

      # Mode controls what happens when a task has restarted "attempts"
      # times within the interval. "delay" mode delays the next restart
      # till the next interval. "fail" mode does not restart the task if
      # "attempts" has been hit within the interval.
      mode = "delay"
    }

    # Define a task to run
    task "redis" {
      # Use Docker to run the task.
      driver = "docker"

      # Configure Docker driver with the image
      config {
        image = "tutum/hello-world"
        port_map {
          http = 80
        }
      }

      service {
        name = "tutum"
        tags = ["global", "cache"]
        port = "http"
        check {
          name = "alive"
          type = "http"
          path = "/"
          interval = "10s"
          timeout = "2s"
        }
      }

      # We must specify the resources required for
      # this task to ensure it runs on a machine with
      # enough capacity.
      resources {
        cpu = 500 # 500 Mhz
        memory = 256 # 256MB
        network {
          mbits = 10
          port "http" {
          }
        }
      }
    }
  }
}