Zookeeper Client Install

module.exports = header: 'ZooKeeper Client Install', handler: ({options}) ->

Register

  @registry.register 'hdp_select', 'ryba/lib/hdp_select'
  @registry.register ['file', 'jaas'], 'ryba/lib/file_jaas'

Users & Groups

By default, the "zookeeper" package create the following entries:

cat /etc/passwd | grep zookeeper
zookeeper:x:497:498:ZooKeeper:/var/run/zookeeper:/bin/bash
cat /etc/group | grep hadoop
hadoop:x:498:hdfs

  @system.group header: "Group #{options.hadoop_group.name}", options.hadoop_group
  @system.group header: "Group #{options.group.name}", options.group
  @system.user header: "User #{options.user.name}", options.user

Packages

Follow the [HDP recommandations][install] to install the "zookeeper" package which has no dependency.

  @call header: 'Packages', ->
    @service
      name: 'zookeeper'
    @hdp_select
      name: 'zookeeper-client'

Kerberos

Create the JAAS client configuration file.

  @file.jaas
    header: 'Kerberos'
    target: "#{options.conf_dir}/zookeeper-client.jaas"
    content: Client:
      useTicketCache: 'true'
    mode: 0o644

Environment

Generate the "zookeeper-env.sh" file.

  @file
    header: 'Environment'
    target: "#{options.conf_dir}/zookeeper-env.sh"
    content: ("export #{k}=\"#{v}\"" for k, v of options.env).join '\n'
    backup: true
    eof: true