# Class Grafana
class grafana (
  $admin_password,
  $container_name = 'grafana',
  $container_image_name = 'grafana/grafana-oss',
  $container_image_version = 'latest',
  $container_mount_data_folder = true,
  $container_data_folder = '/var/lib/grafana',
  $container_config_folder = '/etc/grafana',
  $container_logs_folder = '/var/log/grafana',
  $container_volume_name = 'grafana-storage',
  $container_port = '3000',
  $configuration = {}, # Refer to https://grafana.com/docs/grafana/latest/setup-grafana/configure-grafana/
) {
  $env = [
    "GF_PATHS_CONFIG=${container_config_folder}/grafana.ini",
    "GF_PATHS_DATA=${$container_data_folder}",
    'GF_PATHS_HOME=/usr/share/grafana',
    "GF_PATHS_LOGS=${container_logs_folder}",
    "GF_PATHS_PLUGINS=${container_data_folder}/plugins",
    "GF_PATHS_PROVISIONING=${container_config_folder}/provisioning",
    'GF_LOG_MODE=console file',
    "GF_SECURITY_ADMIN_USER=${admin_password}",
  ]
  podman::network {'grafana':
    driver   => 'bridge',
    internal => true,
  }
  if (!$container_mount_data_folder) {
    podman::volume{$container_volume_name:}
    $flags = {
              network => 'grafana',
              publish => [
                          "${container_port}:3000",
              ],
              #sysctl => 'net.ipv6.conf.all.disable_ipv6=1',
              volume  => [
                "${container_volume_name}:/var/lib/grafana",
              ],
              env     => $env,
              }
  } else {
    user {'grafana':
      uid => 472,
    }
    file {$container_data_folder:
      ensure => directory,
      owner  => 'grafana',
    }
    file {"${container_data_folder}/plugins":
      ensure  => directory,
      owner   => 'grafana',
      require => File[$container_data_folder],
    }
    file {$container_logs_folder:
      ensure => directory,
      owner  => 'grafana',
    }
    file {$container_config_folder:
      ensure => directory,
      owner  => 'grafana',
    }
    $flags = {
              network => 'grafana',
              publish => [
                          "${container_port}:3000",
              ],
              #sysctl => 'net.ipv6.conf.all.disable_ipv6=1',
              volume => [
                "${container_data_folder}:/var/lib/grafana",
                "${container_config_folder}:/etc/grafana",
                "${container_logs_folder}:/var/log/grafana",
              ],
              env     => $env,
              }
    file { "${container_config_folder}/grafana.ini":
      ensure  => present,
      content => template('grafana/grafana.ini.erb'),
    }
  }
  podman::container { $container_name:
    image         => $container_image_name,
    flags         => $flags,
    service_flags => {
      timeout => '180'
      },
  }
}