src/PVE/HA/Env.pm

   1 package PVE::HA::Env;
   2
   3 use strict;
   4 use warnings;
   5
   6 use PVE::SafeSyslog;
   7 use PVE::Tools;
   8
   9 # abstract out the cluster environment for a single node
  10
  11 sub new {
  12     my ($this, $baseclass, $node, @args) = @_;
  13
  14     my $class = ref($this) || $this;
  15
  16     my $plug = $baseclass->new($node, @args);
  17
  18     my $self = bless { plug => $plug }, $class;
  19
  20     return $self;
  21 }
  22
  23 sub nodename {
  24     my ($self) = @_;
  25
  26     return $self->{plug}->nodename();
  27 }
  28
  29 # manager status is stored on cluster, protected by ha_manager_lock
  30 sub read_manager_status {
  31     my ($self) = @_;
  32
  33     return $self->{plug}->read_manager_status();
  34 }
  35
  36 sub write_manager_status {
  37     my ($self, $status_obj) = @_;
  38
  39     return $self->{plug}->write_manager_status($status_obj);
  40 }
  41
  42 # lrm status is written by LRM, protected by ha_agent_lock,
  43 # but can be read by any node (CRM)
  44
  45 sub read_lrm_status {
  46     my ($self, $node) = @_;
  47
  48     return $self->{plug}->read_lrm_status($node);
  49 }
  50
  51 sub write_lrm_status {
  52     my ($self, $status_obj) = @_;
  53
  54     return $self->{plug}->write_lrm_status($status_obj);
  55 }
  56
  57 # implement a way to send commands to the CRM master
  58 sub queue_crm_commands {
  59     my ($self, $cmd) = @_;
  60
  61     return $self->{plug}->queue_crm_commands($cmd);
  62 }
  63
  64 sub read_crm_commands {
  65     my ($self) = @_;
  66
  67     return $self->{plug}->read_crm_commands();
  68 }
  69
  70 # we use this to enable/disbale ha
  71 sub service_config_exists {
  72     my ($self) = @_;
  73
  74     return $self->{plug}->service_config_exists();
  75 }
  76
  77 sub read_service_config {
  78     my ($self) = @_;
  79
  80     return $self->{plug}->read_service_config();
  81 }
  82
  83 sub change_service_location {
  84     my ($self, $sid, $current_node, $new_node) = @_;
  85
  86     return $self->{plug}->change_service_location($sid, $current_node, $new_node);
  87 }
  88
  89 sub read_group_config {
  90     my ($self) = @_;
  91
  92     return $self->{plug}->read_group_config();
  93 }
  94
  95 # this should return a hash containing info
  96 # what nodes are members and online.
  97 sub get_node_info {
  98     my ($self) = @_;
  99
 100     return $self->{plug}->get_node_info();
 101 }
 102
 103 sub log {
 104     my ($self, $level, @args) = @_;
 105
 106     return $self->{plug}->log($level, @args);
 107 }
 108
 109 # aquire a cluster wide manager lock
 110 sub get_ha_manager_lock {
 111     my ($self) = @_;
 112
 113     return $self->{plug}->get_ha_manager_lock();
 114 }
 115
 116 # aquire a cluster wide node agent lock
 117 sub get_ha_agent_lock {
 118     my ($self, $node) = @_;
 119
 120     return $self->{plug}->get_ha_agent_lock($node);
 121 }
 122
 123 # return true when cluster is quorate
 124 sub quorate {
 125     my ($self) = @_;
 126
 127     return $self->{plug}->quorate();
 128 }
 129
 130 # return current time
 131 # overwrite that if you want to simulate
 132 sub get_time {
 133     my ($self) = @_;
 134
 135     return $self->{plug}->get_time();
 136 }
 137
 138 sub sleep {
 139    my ($self, $delay) = @_;
 140
 141    return $self->{plug}->sleep($delay);
 142 }
 143
 144 sub sleep_until {
 145    my ($self, $end_time) = @_;
 146
 147    return $self->{plug}->sleep_until($end_time);
 148 }
 149
 150 sub loop_start_hook {
 151     my ($self, @args) = @_;
 152
 153     return $self->{plug}->loop_start_hook(@args);
 154 }
 155
 156 sub loop_end_hook {
 157     my ($self, @args) = @_;
 158
 159     return $self->{plug}->loop_end_hook(@args);
 160 }
 161
 162 sub watchdog_open {
 163     my ($self) = @_;
 164
 165     # Note: when using /dev/watchdog, make sure perl does not close
 166     # the handle automatically at exit!!
 167
 168     return $self->{plug}->watchdog_open();
 169 }
 170
 171 sub watchdog_update {
 172     my ($self, $wfh) = @_;
 173
 174     return $self->{plug}->watchdog_update($wfh);
 175 }
 176
 177 sub watchdog_close {
 178     my ($self, $wfh) = @_;
 179
 180     return $self->{plug}->watchdog_close($wfh);
 181 }
 182
 183 sub exec_resource_agent {
 184     my ($self, $sid, $service_config, $cmd, @params) = @_;
 185
 186     return $self->{plug}->exec_resource_agent($sid, $service_config, $cmd, @params)
 187 }
 188
 189 # hack to support regression tests
 190 sub can_fork {
 191     my ($self) = @_;
 192
 193     return $self->{plug}->can_fork();
 194 }
 195
 196 1;