# Copyright 2013 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
# Class to configure haproxy to serve git on a CentOS node.
#
# == Class: openstack_project::git
class openstack_project::git (
  $balancer_member_names = [],
  $balancer_member_ips = [],
  $selinux_mode = 'enforcing'
) {
  class { 'openstack_project::server': }

  if ($::osfamily == 'RedHat') {
    class { 'selinux':
      mode => $selinux_mode
    }
  }

  package { 'socat':
    ensure => present,
  }

  package { 'lsof':
    ensure => present,
  }

  class { 'haproxy':
    enable         => true,
    global_options => {
      'log'     => '127.0.0.1 local0',
      'chroot'  => '/var/lib/haproxy',
      'pidfile' => '/var/run/haproxy.pid',
      'maxconn' => '4000',
      'user'    => 'haproxy',
      'group'   => 'haproxy',
      'daemon'  => '',
      'stats'   => 'socket /var/lib/haproxy/stats user root group root mode 0600 level admin'
    },
    defaults_options => {
      'log'     => 'global',
      'stats'   => 'enable',
      'option'  => 'redispatch',
      'retries' => '3',
      'timeout' => [
        'http-request 10s',
        'queue 1m',
        'connect 10s',
        'client 2m',
        'server 2m',
        'check 10s',
      ],
      'maxconn' => '8000',
    },
  }
  # The three listen defines here are what the world will hit.
  haproxy::listen { 'balance_git_http':
    ipaddress        => [$::ipaddress, $::ipaddress6],
    ports            => ['80'],
    mode             => 'tcp',
    collect_exported => false,
    options          => {
      'balance' => 'leastconn',
      'option'  => [
        'tcplog',
      ],
    },
  }
  haproxy::listen { 'balance_git_https':
    ipaddress        => [$::ipaddress, $::ipaddress6],
    ports            => ['443'],
    mode             => 'tcp',
    collect_exported => false,
    options          => {
      'balance' => 'leastconn',
      'option'  => [
        'tcplog',
      ],
    },
  }
  haproxy::listen { 'balance_git_daemon':
    ipaddress        => [$::ipaddress, $::ipaddress6],
    ports            => ['9418'],
    mode             => 'tcp',
    collect_exported => false,
    options          => {
      'maxconn' => '256',
      'backlog' => '256',
      'balance' => 'leastconn',
      'option'  => [
        'tcplog',
      ],
      'timeout' => [
        'client 15m',
        'server 15m',
      ],
    },
  }
  haproxy::balancermember { 'balance_git_http_member':
    listening_service => 'balance_git_http',
    server_names      => $balancer_member_names,
    ipaddresses       => $balancer_member_ips,
    ports             => '8080',
  }
  haproxy::balancermember { 'balance_git_https_member':
    listening_service => 'balance_git_https',
    server_names      => $balancer_member_names,
    ipaddresses       => $balancer_member_ips,
    ports             => '4443',
  }
  haproxy::balancermember { 'balance_git_daemon_member':
    listening_service => 'balance_git_daemon',
    server_names      => $balancer_member_names,
    ipaddresses       => $balancer_member_ips,
    ports             => '29418',
    options           => 'maxqueue 512',
  }

  exec { 'haproxy_allow_bind_ports':
    # If bool is already set don't set it again
    onlyif  => 'bash -c \'getsebool haproxy_connect_any | grep -q off\'',
    command => 'setsebool -P haproxy_connect_any 1',
    path    => '/bin:/usr/sbin',
    before  => Service['haproxy'],
  }

  # TODO(mordred) We should get this haproxy stuff ported to ansible ASAP.
  # Ansible is the one installing rsyslog.
  file { '/etc/rsyslog.d/haproxy.conf':
    ensure => present,
    owner  => 'root',
    group  => 'root',
    mode   => '0644',
    source => 'puppet:///modules/openstack_project/git/rsyslog.haproxy.conf',
  }

  # haproxy statsd

  package { 'python2-statsd':
    ensure => present,
  }

  file { '/usr/local/bin/haproxy-statsd.py':
    ensure  => present,
    owner   => 'root',
    group   => 'root',
    mode    => '0755',
    source  => 'puppet:///modules/openstack_project/git/haproxy-statsd.py',
    notify  => Service['haproxy-statsd'],
    require => Package['python2-statsd'],
  }

  file { '/etc/default/haproxy-statsd':
    ensure  => present,
    owner   => 'root',
    group   => 'root',
    mode    => '0755',
    source  => 'puppet:///modules/openstack_project/git/haproxy-statsd.default',
    require => File['/usr/local/bin/haproxy-statsd.py'],
    notify  => Service['haproxy-statsd'],
  }

  file { '/etc/systemd/system/haproxy-statsd.service':
    ensure  => present,
    owner   => 'root',
    group   => 'root',
    mode    => '0644',
    source  => 'puppet:///modules/openstack_project/git/haproxy-statsd.service',
    require => File['/etc/default/haproxy-statsd'],
    notify  => Service['haproxy-statsd'],
  }

  service { 'haproxy-statsd':
    provider => systemd,
    enable   => true,
    require  => File['/etc/systemd/system/haproxy-statsd.service'],
  }
}