generator to create the zookeeper job file

generate_job_file.bash

$ cat generate_job_file.bash
#!/bin/bash

# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4

set -u

job_file="zookeeper.nomad"

cat > ${job_file} <<EOF
job "zookeeper_test" {
  datacenters = ["dc1"]

  type = "service"

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

for zkid in {1..3}; do

    cat >> $job_file <<EOF
  ############################################################
  # zookeeper [$zkid]
  group "zookeeper_${zkid}" {
    constraint {
      attribute = "\${meta.zookeeperid}"
      value     = "$zkid"
    }

    count = 1

    task "zk" {
      driver = "raw_exec"

      artifact {
        source      = "http://192.168.0.100/my_zk_data/bin/apache-zookeeper-3.5.6-bin.tar.gz"
        destination = "local/"
      }

      artifact {
        source      = "http://192.168.0.100/my_zk_data/scripts/zk_starter.bash"
        destination = "local/zk_starter.bash"
        mode        = "file"
      }

      artifact {
        source      = "http://192.168.0.100/my_zk_data/config/configuration.xsl"
        destination = "local/zkconfig/configuration.xsl"
        mode        = "file"
      }

      artifact {
        source      = "http://192.168.0.100/my_zk_data/config/log4j.properties"
        destination = "local/zkconfig/log4j.properties"
        mode        = "file"
      }

      template {
data = <<EOH
tickTime=2000
dataDir=/var/lib/zookeeper
clientPort=2181
maxClientCnxns=120
initLimit=50
syncLimit=10
4lw.commands.whitelist=*
{{range \$i, \$node := nodes}}{{if index .Meta "zookeeperid" | regexMatch "^\\\\d+$"}}server.{{index .Meta "zookeeperid"}}={{.Address}}:2888:3888
{{end}}{{end}}
EOH

        destination = "local/zkconfig/zoo.cfg"
      }

      env {
        "ZOOKEEPER_ID" = "\${meta.zookeeperid}"
      }

      config {
        command = "/bin/bash"
        args    = ["local/zk_starter.bash", "local/apache-zookeeper-3.5.6-bin", "local/zkconfig"]
      }

      resources {
        cpu    = 2000
        memory = 2000

        network {
          port "zookeeper" {
            static = 2181
          }
        }
      } # resources

      service {
        name = "zookeeper"
        port = "zookeeper"

        check {
          name     = "zookeeper"
          type     = "tcp"
          interval = "60s"
          timeout  = "10s"
          port     = "zookeeper"
        }
      } # service
    } # task
  } # group
EOF

done


cat >> $job_file <<EOF
} # job
EOF

set -x

hclfmt -w $job_file