# lifecycle hook test job for service jobs. touches, removes, and tests
# for the existence of files to assert the order of running tasks.
# after stopping, the alloc dir should contain the following files:
# files: ./init-ran, ./sidecar-ran, ./main-ran, ./poststart-run but not
# the ./main-running, ./sidecar-running, or ./poststart-running files

job "service-lifecycle" {

  datacenters = ["dc1"]

  type = "service"

  constraint {
    attribute = "${attr.kernel.name}"
    value     = "linux"
  }

  group "test" {

    task "init" {

      lifecycle {
        hook = "prestart"
      }

      driver = "docker"

      config {
        image   = "busybox:1"
        command = "/bin/sh"
        args    = ["local/prestart.sh"]
      }

      template {
        data = <<EOT
#!/bin/sh
sleep 1
touch ${NOMAD_ALLOC_DIR}/init-ran
touch ${NOMAD_ALLOC_DIR}/init-running
if [ -f ${NOMAD_ALLOC_DIR}/main ]; then exit 7; fi
if [ -f ${NOMAD_ALLOC_DIR}/poststart ]; then exit 8; fi
rm ${NOMAD_ALLOC_DIR}/init-running
EOT

        destination = "local/prestart.sh"

      }

      resources {
        cpu    = 64
        memory = 64
      }
    }

    task "sidecar" {

      lifecycle {
        hook    = "prestart"
        sidecar = true
      }

      driver = "docker"

      config {
        image   = "busybox:1"
        command = "/bin/sh"
        args    = ["local/sidecar.sh"]
      }

      template {
        data = <<EOT
#!/bin/sh
touch ${NOMAD_ALLOC_DIR}/sidecar-ran
touch ${NOMAD_ALLOC_DIR}/sidecar-running
sleep 5
if [ ! -f ${NOMAD_ALLOC_DIR}/main-running ]; then exit 9; fi
if [ -f ${NOMAD_ALLOC_DIR}/poststart-running ]; then exit 10; fi
sleep 300
EOT

        destination = "local/sidecar.sh"

      }

      resources {
        cpu    = 64
        memory = 64
      }
    }

    task "main" {

      driver = "docker"

      config {
        image   = "busybox:1"
        command = "/bin/sh"
        args    = ["local/main.sh"]
      }

      template {
        data = <<EOT
#!/bin/sh

function cleanup() {
  echo stopping
  rm ${NOMAD_ALLOC_DIR}/main-running
  exit
}

touch ${NOMAD_ALLOC_DIR}/main-ran
touch ${NOMAD_ALLOC_DIR}/main-running
touch ${NOMAD_ALLOC_DIR}/main-started
if [ ! -f ${NOMAD_ALLOC_DIR}/init-ran ]; then exit 11; fi
if [ -f ${NOMAD_ALLOC_DIR}/init-running ]; then exit 12; fi
if [ ! -f ${NOMAD_ALLOC_DIR}/sidecar-ran ]; then exit 13; fi
if [ ! -f ${NOMAD_ALLOC_DIR}/sidecar-running ]; then exit 14; fi
sleep 2
if [ ! -f ${NOMAD_ALLOC_DIR}/poststart-started ]; then exit 15; fi
touch ${NOMAD_ALLOC_DIR}/main-checked

echo trap
trap cleanup SIGTERM

echo sleep
while true
do
  sleep 1
done


EOT

        destination = "local/main.sh"
      }

      resources {
        cpu    = 64
        memory = 64
      }
    }


    task "poststart" {

      lifecycle {
        hook = "poststart"
      }

      driver = "docker"

      config {
        image   = "busybox:1"
        command = "/bin/sh"
        args    = ["local/poststart.sh"]
      }

      template {
        data = <<EOT
#!/bin/sh
touch ${NOMAD_ALLOC_DIR}/poststart-ran
touch ${NOMAD_ALLOC_DIR}/poststart-running
touch ${NOMAD_ALLOC_DIR}/poststart-started
if [ ! -f ${NOMAD_ALLOC_DIR}/init-ran ]; then exit 16; fi
if [ -f ${NOMAD_ALLOC_DIR}/init-running ]; then exit 17; fi
if [ ! -f ${NOMAD_ALLOC_DIR}/sidecar-ran ]; then exit 18; fi
if [ ! -f ${NOMAD_ALLOC_DIR}/sidecar-running ]; then exit 19; fi
if [ ! -f ${NOMAD_ALLOC_DIR}/main-started ]; then exit 20; fi
rm ${NOMAD_ALLOC_DIR}/poststart-running
EOT

        destination = "local/poststart.sh"
      }

      resources {
        cpu    = 64
        memory = 64
      }
    }

    task "poststop" {

      lifecycle {
        hook = "poststop"
      }

      driver = "docker"

      config {
        image   = "busybox:1"
        command = "/bin/sh"
        args    = ["local/poststop.sh"]
      }

      template {
        data = <<EOT
#!/bin/sh
sleep 1
touch ${NOMAD_ALLOC_DIR}/poststop-ran
touch ${NOMAD_ALLOC_DIR}/poststop-running
touch ${NOMAD_ALLOC_DIR}/poststop-started
sleep 5

if [ ! -f ${NOMAD_ALLOC_DIR}/init-ran ]; then exit 12; fi
if [ ! -f ${NOMAD_ALLOC_DIR}/main-started ]; then exit 15; fi
if [ -f ${NOMAD_ALLOC_DIR}/init-running ]; then exit 14; fi
if [ -f ${NOMAD_ALLOC_DIR}/main-running ]; then exit 17; fi
rm ${NOMAD_ALLOC_DIR}/poststop-running
EOT

        destination = "local/poststop.sh"
      }

      resources {
        cpu    = 64
        memory = 64
      }
    }

  }
}