Puppet Class: prometheus_cd::params

Inherited by:
prometheus_cd::main::dirs
prometheus_cd::main::files
prometheus_cd::main::config
prometheus_cd::main::install
prometheus_cd::main::service
prometheus_cd::main::yumrepo
prometheus_cd::firewall::iptables
Defined in:
manifests/params.pp

Summary

Class holds all parameters for the prometheus_cd module.

Overview

prometheus_cd::params.pp Module name: prometheus_cd Author: Arne Teuke (arne_teuke@confdroid.com)

Parameters:

  • reqpackage_prom (String) (defaults to: 'prometheus2') —

    the prometheus package

  • reqpackage_ne (String) (defaults to: 'node_exporter') —

    the node_exporter package

  • pkg_ensure (String) (defaults to: 'present') —

    which version of the package to install

  • manage_prometheus (Boolean) (defaults to: false) —

    whether to manage prometheus

  • manage_node_exporter (Boolean) (defaults to: false) —

    whether to manage node exporter

  • ps_manage_fw (Boolean) (defaults to: false) —

    whether to manage the firewall

  • ps_prom_host (String) (defaults to: 'prometheus.example.net') —

    the fqdn of the prometheus server

  • ps_fw_prefix (String) (defaults to: '50') —

    the firewall rule prefix

  • ps_main_port (String) (defaults to: '9090') —

    the firewall main port for prometheus

  • ps_auth_user (String) (defaults to: 'changeme') —

    the username for authentication

  • ps_auth_pass (String) (defaults to: 'changeme') —

    the password for authentication

  • ps_web_pass (String) (defaults to: 'changeme') —

    the password for web authentication

  • ps_retention_time (String) (defaults to: '15d') —

    tsdb retention time

  • ps_retention_size (String) (defaults to: '20GB') —

    tsdb retention size

  • ps_wal_seg_size (String) (defaults to: '50MB') —

    WAL segment size

  • ps_min_block_dur (String) (defaults to: '2h') —

    tsdb minimum block duration

  • ps_max_block_dur (String) (defaults to: '2h') —

    tsdb maximum block duration

  • ps_max_mem (String) (defaults to: '6G') —

    hard memory ceiling

  • ps_high_mem (String) (defaults to: '5G') —

    soft limit to make kernel reclaim earlier

  • ps_swap_mem (String) (defaults to: '4G') —

    allow swap, but limit it

  • ps_oom_score (String) (defaults to: '500') —

    OOM killer choosing prometheus

  • ps_max_procs (String) (defaults to: '1') —

    reduce parallel WAL replay workers

  • ps_write_external (Boolean) (defaults to: false) —

    whether to allow remote postgres

  • ps_auth_ext_user (String) (defaults to: 'changeme') —

    user for writing to extern instance

  • ps_auth_ext_pass (String) (defaults to: 'changeme') —

    password for writing to extern instance

  • ps_external_url (String) (defaults to: 'http://changeme.local/write') —

    the full url for the remote write point

  • ps_enable_pruning (Boolean) (defaults to: false) —

    whether to allow pruning local blocks

  • ps_pruning_dir (String) (defaults to: '/opt/prometheus-prune') —

    the directory for the pruning script

  • ps_pruning_file (String) (defaults to: "${ps_pruning_dir}/prune_prometheus_pg.sh") —

    the url and filename for the pruning script

  • ps_env_file (String) (defaults to: "${ps_pruning_dir}/prune.env") —

    the url and filename for the env file

  • ps_pg_host (String) (defaults to: 'localhost') —

    the host running the database for cold metrics

  • ps_pg_port (String) (defaults to: '5432') —

    the port for the database for cold metrics

  • ps_pg_db (String) (defaults to: 'prometheus') —

    the database for cold metrics

  • ps_pg_user (String) (defaults to: 'readaccess') —

    the read-only user for the db for cold metrics

  • ps_pg_pass (String) (defaults to: 'Changeme') —

    the password for the db for cold metrics

  • ps_dry_run (Boolean) (defaults to: true) —

    (true = just log, false = actually delete blocks)

  • ps_min_age_hours (String) (defaults to: '4') —

    Minimum block age in hours before pruning

  • ps_grace_hours (String) (defaults to: '1') —

    Grace period in hours to be extra safe



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# File 'manifests/params.pp', line 44

class prometheus_cd::params (

  # installation
  String $reqpackage_prom       = 'prometheus2',
  String $reqpackage_ne         = 'node_exporter',
  String $pkg_ensure            = 'present',

  # config logic
  Boolean $manage_prometheus    = false,
  Boolean $manage_node_exporter = false,
  Boolean $ps_manage_fw         = false,
  String $ps_prom_host          = 'prometheus.example.net',

  # firewall
  String $ps_fw_prefix          = '50',
  String $ps_main_port          = '9090',

  # auth prometheus
  String $ps_auth_user          = 'changeme',
  String $ps_auth_pass          = 'changeme',
  String $ps_web_pass           = 'changeme',

  # auth remote
  String $ps_auth_ext_user      = 'changeme',
  String $ps_auth_ext_pass      = 'changeme',

  # storage
  String $ps_retention_time     = '15d',
  String $ps_retention_size     = '20GB',
  String $ps_wal_seg_size       = '50MB',
  String $ps_min_block_dur      = '2h',
  String $ps_max_block_dur      = '2h',

  # service
  String $ps_max_mem            = '6G',
  String $ps_high_mem           = '5G',
  String $ps_swap_mem           = '4G',
  String $ps_oom_score          = '500',
  String $ps_max_procs          = '1',

  # remote write external
  Boolean $ps_write_external    = false,
  String $ps_external_url       = 'http://changeme.local/write',

  # pruning script
  Boolean $ps_enable_pruning    = false,
  String $ps_pruning_dir        = '/opt/prometheus-prune',
  String $ps_pruning_file       = "${ps_pruning_dir}/prune_prometheus_pg.sh",
  String $ps_env_file           = "${ps_pruning_dir}/prune.env",
  String $ps_pg_host            = 'localhost',
  String $ps_pg_port            = '5432',
  String $ps_pg_db              = 'prometheus',
  String $ps_pg_user            = 'readaccess',
  String $ps_pg_pass            = 'Changeme',
  Boolean $ps_dry_run           = true,
  String $ps_min_age_hours      = '4',
  String $ps_grace_hours        = '1',

) {
  # defaults
  $fqdn                   = $facts['networking']['fqdn']
  $domain                 = $facts['networking']['domain']
  $os_name                = $facts['os']['name']
  $os_release             = $facts['os']['release']['major']

  # dirs
  $ps_main_dir            = '/etc/prometheus'
  $ps_system_file_dir     = '/etc/systemd/system/prometheus.service.d'
  $ps_system_dir          = '/etc/systemd/system/'

  # files
  $ps_main_file           = "${ps_main_dir}/prometheus.yml"
  $ps_web_config_file     = "${ps_main_dir}/web.yml"
  $ps_system_service_file = "${ps_system_file_dir}/override.conf"
  $ps_pruning_svc_file    = "${ps_system_dir}/prometheus-prune.service"
  $ps_pruning_timer_file  = "${ps_system_dir}/prometheus-prune.timer"
  $ps_prune_log_file      = '/var/log/prometheus-prune.log'

  # services
  $ps_prom_service        = 'prometheus'
  $ps_ne_service          = 'node_exporter'
  $ps_prune_service       = 'prometheus-prune.service'
  $ps_prune_timer         = 'prometheus-prune.timer'

  # includes must be last
  include prometheus_cd::main::config
}