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 # check if we do node shutdown
  58 # we used this to decide if services should be stopped or freezed
  59 sub is_node_shutdown {
  60     my ($self) = @_;
  61
  62     return $self->{plug}->is_node_shutdown();
  63 }
  64
  65 # implement a way to send commands to the CRM master
  66 sub queue_crm_commands {
  67     my ($self, $cmd) = @_;
  68
  69     return $self->{plug}->queue_crm_commands($cmd);
  70 }
  71
  72 sub read_crm_commands {
  73     my ($self) = @_;
  74
  75     return $self->{plug}->read_crm_commands();
  76 }
  77
  78 sub service_config_exists {
  79     my ($self) = @_;
  80
  81     return $self->{plug}->service_config_exists();
  82 }
  83
  84 sub read_service_config {
  85     my ($self) = @_;
  86
  87     return $self->{plug}->read_service_config();
  88 }
  89
  90 sub change_service_location {
  91     my ($self, $sid, $current_node, $new_node) = @_;
  92
  93     return $self->{plug}->change_service_location($sid, $current_node, $new_node);
  94 }
  95
  96 sub read_group_config {
  97     my ($self) = @_;
  98
  99     return $self->{plug}->read_group_config();
 100 }
 101
 102 # this should return a hash containing info
 103 # what nodes are members and online.
 104 sub get_node_info {
 105     my ($self) = @_;
 106
 107     return $self->{plug}->get_node_info();
 108 }
 109
 110 sub log {
 111     my ($self, $level, @args) = @_;
 112
 113     return $self->{plug}->log($level, @args);
 114 }
 115
 116 # acquire a cluster wide manager lock
 117 sub get_ha_manager_lock {
 118     my ($self) = @_;
 119
 120     return $self->{plug}->get_ha_manager_lock();
 121 }
 122
 123 # release the cluster wide manager lock.
 124 # when released another CRM may step up and get the lock, thus this should only
 125 # get called when shutting down/deactivating the current master
 126 sub release_ha_manager_lock {
 127     my ($self) = @_;
 128
 129     return $self->{plug}->release_ha_manager_lock();
 130 }
 131
 132 # acquire a cluster wide node agent lock
 133 sub get_ha_agent_lock {
 134     my ($self, $node) = @_;
 135
 136     return $self->{plug}->get_ha_agent_lock($node);
 137 }
 138
 139 # return true when cluster is quorate
 140 sub quorate {
 141     my ($self) = @_;
 142
 143     return $self->{plug}->quorate();
 144 }
 145
 146 # return current time
 147 # overwrite that if you want to simulate
 148 sub get_time {
 149     my ($self) = @_;
 150
 151     return $self->{plug}->get_time();
 152 }
 153
 154 sub sleep {
 155    my ($self, $delay) = @_;
 156
 157    return $self->{plug}->sleep($delay);
 158 }
 159
 160 sub sleep_until {
 161    my ($self, $end_time) = @_;
 162
 163    return $self->{plug}->sleep_until($end_time);
 164 }
 165
 166 sub loop_start_hook {
 167     my ($self, @args) = @_;
 168
 169     return $self->{plug}->loop_start_hook(@args);
 170 }
 171
 172 sub loop_end_hook {
 173     my ($self, @args) = @_;
 174
 175     return $self->{plug}->loop_end_hook(@args);
 176 }
 177
 178 sub watchdog_open {
 179     my ($self) = @_;
 180
 181     # Note: when using /dev/watchdog, make sure perl does not close
 182     # the handle automatically at exit!!
 183
 184     return $self->{plug}->watchdog_open();
 185 }
 186
 187 sub watchdog_update {
 188     my ($self, $wfh) = @_;
 189
 190     return $self->{plug}->watchdog_update($wfh);
 191 }
 192
 193 sub watchdog_close {
 194     my ($self, $wfh) = @_;
 195
 196     return $self->{plug}->watchdog_close($wfh);
 197 }
 198
 199 sub exec_resource_agent {
 200     my ($self, $sid, $service_config, $cmd, @params) = @_;
 201
 202     return $self->{plug}->exec_resource_agent($sid, $service_config, $cmd, @params)
 203 }
 204
 205 # hack to support regression tests
 206 sub can_fork {
 207     my ($self) = @_;
 208
 209     return $self->{plug}->can_fork();
 210 }
 211
 212 1;