Puppet Class: prometheus::server

Defined in:
manifests/server.pp

Summary

Install Prometheus server

Overview

Parameters:

  • hostname (String) —

    is the hostname for metrics reading

  • tls_account (String) —

    is the account details for requesting the TLS cert

  • grafana_password (String) —

    is the password for grafana to access metrics

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

    sets the retention window for local metrics

  • targets (Array[Hash]) (defaults to: {}) —

    is an array of hashes of metrics targets

  • tls_challengealias (Optional[String]) (defaults to: undef) —

    is the domain to use for TLS cert validation

  • backup_target (Optional[String]) (defaults to: undef) —

    sets the target repo for backups

  • backup_watchdog (Optional[String]) (defaults to: undef) —

    sets the watchdog URL to confirm backups are working

  • backup_password (Optional[String]) (defaults to: undef) —

    sets the encryption key for backup snapshots

  • backup_environment (Optional[Hash[String, String]]) (defaults to: undef) —

    sets the env vars to use for backups

  • backup_rclone (Optional[String]) (defaults to: undef) —

    sets the config for an rclone backend



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# File 'manifests/server.pp', line 14

class prometheus::server (
  String $hostname,
  String $tls_account,
  String $grafana_password,
  String $retention = '15d',
  Array[Hash] $targets = {},
  Optional[String] $tls_challengealias = undef,
  Optional[String] $backup_target = undef,
  Optional[String] $backup_watchdog = undef,
  Optional[String] $backup_password = undef,
  Optional[Hash[String, String]] $backup_environment = undef,
  Optional[String] $backup_rclone = undef,
) {
  package { 'prometheus': }

  file { '/etc/conf.d/prometheus':
    ensure  => file,
    content => template('prometheus/conf.erb'),
    require => Package['prometheus'],
    notify  => Service['prometheus'],
  }

  file { '/etc/prometheus/prometheus.yml':
    ensure  => file,
    content => template('prometheus/prometheus.yml.erb'),
    require => Package['prometheus'],
    notify  => Service['prometheus'],
  }

  file { '/etc/prometheus/servers_node.yml':
    ensure  => file,
    content => template('prometheus/servers_node.yml.erb'),
    require => Package['prometheus'],
    notify  => Service['prometheus'],
  }

  file { '/etc/prometheus/servers_wireguard.yml':
    ensure  => file,
    content => template('prometheus/servers_wireguard.yml.erb'),
    require => Package['prometheus'],
    notify  => Service['prometheus'],
  }

  file { '/etc/prometheus/servers_systemd.yml':
    ensure  => file,
    content => template('prometheus/servers_systemd.yml.erb'),
    require => Package['prometheus'],
    notify  => Service['prometheus'],
  }

  file { '/etc/prometheus/blackbox_http.yml':
    ensure  => file,
    content => template('prometheus/blackbox_http.yml.erb'),
    require => Package['prometheus'],
    notify  => Service['prometheus'],
  }

  service { 'prometheus':
    ensure => running,
    enable => true,
  }

  nginx::site { $hostname:
    proxy_target       => 'http://localhost:9090',
    tls_challengealias => $tls_challengealias,
    tls_account        => $tls_account,
    users              => {
      'grafana'  => $grafana_password,
    },
  }

  package { 'prometheus-blackbox-exporter': }

  -> file { '/etc/prometheus/blackbox.yml':
    ensure => file,
    source => 'puppet:///modules/prometheus/blackbox.yml',
  }

  ~> service { 'prometheus-blackbox-exporter':
    ensure => running,
    enable => true,
  }

  if $backup_target != '' {
    backup::repo { 'prometheus':
      source        => '/var/lib/prometheus',
      target        => $backup_target,
      watchdog_url  => $backup_watchdog,
      password      => $backup_password,
      environment   => $backup_environment,
      rclone_config => $backup_rclone,
    }
  }
}