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# File 'modules/prometheus/manifests/redis_exporter.pp', line 21
define prometheus::redis_exporter (
$instance = $title,
$arguments = '',
$password = '',
$hostname = $::hostname,
$port = '9121',
Wmflib::Ensure $ensure = 'present',
) {
$service_name = "prometheus-redis-exporter@${instance}"
$listen_address = "${hostname}:${port}"
if $ensure == 'present' {
ensure_packages('prometheus-redis-exporter')
Package['prometheus-redis-exporter'] -> Systemd::Service[$service_name]
# We're going with multiple prometheus-redis-exporter, mask and stop the default single-instance one.
exec { "mask_default_redis_exporter_${instance}":
command => '/bin/systemctl mask prometheus-redis-exporter.service ; /bin/systemctl stop prometheus-redis-exporter.service',
creates => '/etc/systemd/system/prometheus-redis-exporter.service',
}
}
file { "/etc/default/${service_name}":
ensure => stdlib::ensure($ensure, 'file'),
mode => '0400',
owner => 'root',
group => 'root',
content => "ARGS=\"-redis.addr localhost:${instance} ${arguments}\"\nREDIS_PASSWORD=\"${password}\"",
show_diff => false,
notify => Systemd::Service[$service_name],
}
systemd::service { $service_name:
ensure => $ensure,
content => systemd_template('prometheus-redis-exporter@'),
restart => true,
}
profile::auto_restarts::service { $service_name:
ensure => $ensure,
}
}
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