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# File 'manifests/cgroup_exporter.pp', line 72
class prometheus::cgroup_exporter (
String[1] $package_name = 'cgroup_exporter',
String $download_extension = 'tar.gz',
# renovate: depName=treydock/cgroup_exporter
String[1] $version = '1.0.1',
String[1] $package_ensure = 'latest',
String[1] $user = 'cgroup-exporter',
String[1] $group = 'cgroup-exporter',
Prometheus::Uri $download_url_base = 'https://github.com/treydock/cgroup_exporter/releases',
Array[String] $extra_groups = [],
Prometheus::Initstyle $init_style = $prometheus::init_style,
Boolean $purge_config_dir = true,
String[1] $arch = $prometheus::real_arch,
Stdlib::Absolutepath $bin_dir = $prometheus::bin_dir,
Boolean $restart_on_change = true,
Boolean $service_enable = true,
Stdlib::Ensure::Service $service_ensure = 'running',
String[1] $service_name = 'cgroup_exporter',
Prometheus::Install $install_method = $prometheus::install_method,
Boolean $manage_group = true,
Boolean $manage_service = true,
Boolean $manage_user = true,
String[1] $os = downcase(fact('kernel')),
Stdlib::Absolutepath $archive_bin_path = "/opt/${package_name}-${version}.${os}-${arch}/${package_name}",
Optional[String[1]] $extra_options = undef,
Optional[Prometheus::Uri] $download_url = undef,
Optional[Stdlib::Host] $scrape_host = undef,
Stdlib::Absolutepath $env_file_path = $prometheus::env_file_path,
Boolean $export_scrape_job = false,
Stdlib::Port $scrape_port = 9306,
String[1] $scrape_job_name = 'cgroup',
Optional[Hash] $scrape_job_labels = undef,
Hash $modules = {},
Optional[String[1]] $proxy_server = undef,
Boolean $unprivileged = false,
Optional[Enum['none', 'http', 'https', 'ftp']] $proxy_type = undef,
Enum['slurm', 'user.slice'] $cgroup_paths = 'slurm',
) inherits prometheus {
$real_download_url = pick(
$download_url,
"${download_url_base}/download/v${version}/${package_name}-${version}.${os}-${arch}.${download_extension}"
)
$notify_service = $restart_on_change ? {
true => Service[$service_name],
default => undef,
}
$paths_option = "--config.paths=/${cgroup_paths}"
$listen_address = $scrape_port ? {
9306 => undef,
default => "--web.listen-address=':${scrape_port}'",
}
case fact('os.name') {
'Debian': { $unprivileged_os = versioncmp ("${fact('os.release.full')}", '12') == -1 }
'Ubuntu': { $unprivileged_os = versioncmp ("${fact('os.release.full')}", '22.04') == -1 }
default: { $unprivileged_os = false }
}
$bin_name = $package_name
$options = [
$extra_options,
$listen_address,
$paths_option,
].filter |$x| { !$x.empty }.join(' ')
if $unprivileged or $unprivileged_os {
# workaround from the ipmi_exporter class
sudo::conf { $service_name:
ensure => 'present',
content => join([
"${user} ALL = NOPASSWD: ${archive_bin_path}",
], "\n"),
sudo_file_name => $service_name,
}
file { "${bin_dir}/${bin_name}":
owner => $user,
group => $group,
mode => '0750',
content => join([
'#!/bin/bash',
"sudo ${archive_bin_path} \"$@\"",
], "\n"),
}
# necessary to ensure that all processes are killed properly with Killmode=mixed
# if not we encounter those error "cgroup_exporter.service: Unit process XXXXX (sudo) remains running after unit stopped."
include 'systemd'
systemd::manage_unit { "${service_name}.service":
unit_entry => {
'Description' => "Prometheus ${package_name}",
'Wants' => 'network-online.target',
'After' => 'network-online.target',
},
service_entry => {
'User' => $user,
'Group' => $group,
'EnvironmentFile' => "-${env_file_path}/${package_name}",
'ExecStart' => sprintf('%s/%s %s', $bin_dir, $bin_name, $options),
'ExecReload' => '/bin/kill -HUP $MAINPID',
'KillMode' => 'mixed',
'Restart' => 'always',
},
install_entry => {
'WantedBy' => 'multi-user.target',
},
notify => $notify_service,
}
$init_style_real = 'none'
} else {
exec { 'setcap cgroup_exporter':
command => "/usr/sbin/setcap cap_sys_ptrace=eip ${archive_bin_path}",
unless => "/usr/sbin/getcap ${archive_bin_path} | grep -q cap_sys_ptrace=eip",
require => Prometheus::Daemon[$service_name],
}
$init_style_real = $init_style
}
prometheus::daemon { $service_name:
install_method => $install_method,
version => $version,
download_extension => $download_extension,
os => $os,
arch => $arch,
real_download_url => $real_download_url,
bin_dir => $bin_dir,
notify_service => $notify_service,
package_name => $package_name,
package_ensure => $package_ensure,
manage_user => $manage_user,
user => $user,
extra_groups => $extra_groups,
group => $group,
manage_group => $manage_group,
purge => $purge_config_dir,
options => $options,
init_style => $init_style_real,
service_ensure => $service_ensure,
service_enable => $service_enable,
manage_service => $manage_service,
export_scrape_job => $export_scrape_job,
scrape_host => $scrape_host,
scrape_port => $scrape_port,
scrape_job_name => $scrape_job_name,
scrape_job_labels => $scrape_job_labels,
bin_name => $bin_name,
proxy_server => $proxy_server,
proxy_type => $proxy_type,
archive_bin_path => $archive_bin_path,
manage_bin_link => !($unprivileged or $unprivileged_os),
}
}
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