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# File 'modules/profile/manifests/cassandra.pp', line 3
class profile::cassandra(
$all_instances = hiera('profile::cassandra::instances'),
$rack = hiera('profile::cassandra::rack'),
$cassandra_settings = hiera('profile::cassandra::settings'),
$graphite_host = hiera('graphite_host'),
$prometheus_nodes = hiera('prometheus_nodes'),
Array[Stdlib::IP::Address] $client_ips = hiera('profile::cassandra::client_ips', []),
$allow_analytics = hiera('profile::cassandra::allow_analytics'),
$metrics_blacklist = hiera('profile::cassandra::metrics_blacklist', undef),
$metrics_whitelist = hiera('profile::cassandra::metrics_whitelist', undef),
$monitor_enabled = hiera('profile::cassandra::monitor_enabled', true),
$disable_graphite_metrics = hiera('profile::cassandra::disable_graphite_metrics', false),
) {
include ::passwords::cassandra
$instances = $all_instances[$::fqdn]
# We get the cassandra seeds from $all_instances, with a template hack
# This is preferred over a very specialized parser function.
$all_seeds = split(template('profile/cassandra/seeds.erb'), '\|')
$seeds = split($all_seeds[0], ',')
$ferm_seeds = split($all_seeds[1], ',')
$base_settings = {
'instances' => $instances,
'rack' => $rack,
'seeds' => $seeds,
'logstash_host' => 'localhost',
}
$cassandra_real_settings = merge($base_settings, $cassandra_settings)
create_resources('class', {'::cassandra' => $cassandra_real_settings})
# Selectively disable the cassandra metrics collector - T186567
$ensure_cassandra_metrics = $disable_graphite_metrics ? {
true => absent,
default => present,
}
# rsyslog forwards json messages sent to localhost along to logstash via kafka
if $cassandra_real_settings['logstash_host'] == 'localhost' {
class { '::profile::rsyslog::udp_json_logback_compat': }
}
class { '::cassandra::metrics':
graphite_host => $graphite_host,
whitelist => $metrics_whitelist,
blacklist => $metrics_blacklist,
ensure => $ensure_cassandra_metrics,
}
class { '::cassandra::logging': }
class { '::cassandra::twcs': }
class { '::cassandra::sysctl':
# Queue page flushes at 24MB intervals
vm_dirty_background_bytes => 25165824,
}
if $cassandra_settings['tls_cluster_name'] {
$tls_cluster_name = $cassandra_settings['tls_cluster_name']
} else {
$tls_cluster_name = ''
}
if $instances {
$instance_names = keys($instances)
::cassandra::instance::monitoring{ $instance_names:
monitor_enabled => $monitor_enabled,
instances => $instances,
tls_cluster_name => $tls_cluster_name,
}
} else {
$default_instances = {
'default' => {
'listen_address' => $::cassandra::listen_address,
}}
::cassandra::instance::monitoring{ 'default':
monitor_enabled => $monitor_enabled,
instances => $default_instances,
tls_cluster_name => $tls_cluster_name,
}
}
system::role { 'cassandra':
description => 'Cassandra server',
}
$cassandra_hosts_ferm = join($ferm_seeds, ' ')
$prometheus_nodes_ferm = join($prometheus_nodes, ' ')
$client_ips_ferm = join($client_ips, ' ')
# Cassandra intra-node messaging
ferm::service { 'cassandra-intra-node':
proto => 'tcp',
port => '7000',
srange => "@resolve((${cassandra_hosts_ferm}))",
}
if $cassandra_settings['tls_cluster_name'] {
# Cassandra intra-node SSL messaging
ferm::service { 'cassandra-intra-node-ssl':
proto => 'tcp',
port => '7001',
srange => "@resolve((${cassandra_hosts_ferm}))",
}
}
# Cassandra JMX/RMI
ferm::service { 'cassandra-jmx-rmi':
proto => 'tcp',
# hardcoded limit of 4 instances per host
port => '7199:7202',
srange => "@resolve((${cassandra_hosts_ferm}))",
}
# Cassandra CQL query interface
# Note: $client_ips is presumed to be IPs and not be resolved
ferm::service { 'cassandra-cql':
proto => 'tcp',
port => '9042',
srange => "(@resolve((${cassandra_hosts_ferm})) ${client_ips_ferm})",
}
# Prometheus jmx_exporter for Cassandra
ferm::service { 'cassandra-jmx_exporter':
proto => 'tcp',
port => '7800',
srange => "@resolve((${prometheus_nodes_ferm}))",
}
if $allow_analytics {
include ::network::constants
$analytics_networks = join($network::constants::analytics_networks, ' ')
ferm::service { 'cassandra-analytics-cql':
proto => 'tcp',
port => '9042',
srange => "(@resolve((${cassandra_hosts_ferm})) ${analytics_networks})",
}
}
}
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