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# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
class hadoop_zookeeper (
$kerberos_realm = "",
) {
class deploy ($roles) {
if ("zookeeper-client" in $roles) {
include hadoop_zookeeper::client
}
if ("zookeeper-server" in $roles) {
include hadoop_zookeeper::server
}
}
class common (
$kerberos_realm = $hadoop_zookeeper::kerberos_realm,
) inherits hadoop_zookeeper {
if ($kerberos_realm) {
file { '/etc/zookeeper/conf/java.env':
source => 'puppet:///modules/hadoop_zookeeper/java.env',
}
Package<| title == 'zookeeper' |> -> File['/etc/zookeeper/conf/java.env']
Package<| title == 'zookeeper-server' |> -> File['/etc/zookeeper/conf/java.env']
File['/etc/zookeeper/conf/java.env'] ~> Service<| title == 'zookeeper-server' |>
}
}
class client (
$kerberos_realm = $hadoop_zookeeper::kerberos_realm,
) inherits hadoop_zookeeper {
include common
package { "zookeeper":
ensure => latest,
require => Package["jdk"],
}
if ($kerberos_realm) {
file { '/etc/zookeeper/conf/client-jaas.conf':
content => template('hadoop_zookeeper/client-jaas.conf'),
require => Package['zookeeper'],
}
}
}
class server($myid,
$port = "2181",
$datadir = "/var/lib/zookeeper",
$ensemble = [$myid, "localhost:2888:3888"],
$kerberos_realm = $hadoop_zookeeper::kerberos_realm,
) inherits hadoop_zookeeper {
include common
package { "zookeeper-server":
ensure => latest,
require => Package["jdk"],
}
service { "zookeeper-server":
ensure => running,
require => [ Package["zookeeper-server"],
Exec["zookeeper-server-initialize"] ],
subscribe => [ File["/etc/zookeeper/conf/zoo.cfg"],
File["/var/lib/zookeeper/myid"] ],
hasrestart => true,
hasstatus => true,
}
file { "/etc/zookeeper/conf/zoo.cfg":
content => template("hadoop_zookeeper/zoo.cfg"),
require => Package["zookeeper-server"],
}
file { "/var/lib/zookeeper/myid":
content => inline_template("<%= @myid %>"),
require => Package["zookeeper-server"],
}
exec { "zookeeper-server-initialize":
command => "/usr/bin/zookeeper-server-initialize",
user => "zookeeper",
creates => "/var/lib/zookeeper/version-2",
require => Package["zookeeper-server"],
}
if ($kerberos_realm) {
require kerberos::client
kerberos::host_keytab { "zookeeper":
spnego => true,
require => Package["zookeeper-server"],
before => Service["zookeeper-server"],
}
file { "/etc/zookeeper/conf/server-jaas.conf":
content => template("hadoop_zookeeper/server-jaas.conf"),
require => Package["zookeeper-server"],
notify => Service["zookeeper-server"],
}
}
}
}
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