eb68622ab4
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@170 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
458 lines
9.7 KiB
Perl
458 lines
9.7 KiB
Perl
#!/usr/bin/perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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package XCAT;
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use Socket;
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use xCAT::Utils;
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use xCAT::MsgUtils;
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use base xCAT::DSHContext;
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# Define remote shell globals from xCAT
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our $XCAT_RSH_CMD;
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our $XCAT_RCP_CMD;
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#
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# get the remote command settings
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#
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XCAT->get_xcat_remote_cmds;
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# Global Data structures for xCAT context
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our @xcat_node_list = ();
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our %xcat_nodegroup_table = ();
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#-------------------------------------------------------------------------------
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=head3
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context_defaults
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Assign default properties for the xCAT context. A default
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property for a context will be used if the property is
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not user configured in any other way.
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Arguments:
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None
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Returns:
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A reference to a hash table with the configured
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default properties for the xCAT context
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Globals:
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$XCAT_RSH_CMD
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Error:
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None
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Example:
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$default_properties = XCAT->config_defaults;
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Comments:
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$defaults hash table contents:
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$defaults{'NodeRemoteShell'} - default remote shell to use for node targets
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=cut
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#-------------------------------------------------------------------------------
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sub context_defaults
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{
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my %defaults = ();
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$defaults{'NodeRemoteShell'} = $XCAT_RSH_CMD;
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return \%defaults;
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}
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#-------------------------------------------------------------------------------
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=head3
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context_properties
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Configure the user specified context properties for the xCAT context.
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These properties are configured by the user through environment
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variables or external configuration files.
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Arguments:
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None
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Returns:
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A reference to a hash table of user-configured properties for
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the xCAT context.
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Globals:
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None
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Error:
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None
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Example:
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$properties = XCAT->config_properties
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Comments:
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=cut
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#-------------------------------------------------------------------------------
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sub context_properties
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{
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my %properties = ();
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$properties{'RemoteShell'} = $XCAT_RSH_CMD;
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$properties{'RemoteCopyCmd'} = $XCAT_RCP_CMD;
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return \%properties;
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}
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#-------------------------------------------------------------------------------
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=head3
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all_devices
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Comments: devices are nodes in the XCAT context. Use node flags
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and not device flags.
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=cut
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#-------------------------------------------------------------------------------
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sub all_devices
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{
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my ($class, $resolved_targets) = @_;
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xCAT::MsgUtils->message(
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"E",
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" Nodes and Devices are considered nodes in xCAT.\n The -A flag is not supported. Use the all group in XCAT to dsh to all node/devices.\n"
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);
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return;
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}
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#-------------------------------------------------------------------------------
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=head3
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all_nodes
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Returns an array of all node names in the xCAT context
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Note in xCAT everything is a node including devices
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Arguments:
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None
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Returns:
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An array of node/device names
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Globals:
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@xcat_node_list
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Error:
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None
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Example:
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@nodes = XCAT->get_xcat_node_list;
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Comments:
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=cut
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#-------------------------------------------------------------------------------
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sub all_nodes
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{
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scalar(@xcat_node_list) || XCAT->get_xcat_node_list;
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return @xcat_node_list;
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}
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#-------------------------------------------------------------------------------
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=head3
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all_nodegroups
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Returns an array of all node group names in the xCAT context
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Note in xCAT everything is a node including devices
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Arguments:
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None
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Returns:
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An array of node/device group names
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Globals:
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%xcat_nodegroup_table
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Error:
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None
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Example:
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@nodegroups = XCAT->all_nodegroups;
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Comments:
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=cut
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#-------------------------------------------------------------------------------
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sub all_nodegroups
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{
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scalar(%xcat_nodegroup_table) || XCAT->get_xcat_nodegroup_table;
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return keys(%xcat_nodegroup_table);
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}
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#-------------------------------------------------------------------------------
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=head3
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nodegroup_members
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Given a node/device group in the xCAT context, this routine expands the
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membership of the group and returns a list of its members.
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Arguments:
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$nodegroup - node group name
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Returns:
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An array of node group members
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Globals:
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$nodegroup_path
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Error:
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None
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Example:
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$members = XCAT->nodegroup_members('MyGroup1');
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Comments:
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=cut
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#-------------------------------------------------------------------------------
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sub nodegroup_members
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{
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my ($class, $nodegroup) = @_;
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my %node_list = ();
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scalar(%xcat_nodegroup_table) || XCAT->get_xcat_nodegroup_table;
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!defined($xcat_nodegroup_table{$nodegroup}) && return undef;
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my @nodes = split /,/, $xcat_nodegroup_table{$nodegroup};
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foreach my $node (@nodes)
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{
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$node_list{$node}++;
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}
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my @members = keys(%node_list);
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return \@members;
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}
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#-------------------------------------------------------------------------------
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=head3
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resolve_node
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Within the xCAT context, resolve the name of a given node and
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augment the supplied property hash table with xCAT node information.
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Arguments:
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$target_properties - basic properties hash table reference for a node
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Returns:
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1 if resolution was successful
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undef otherwise
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Globals:
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$XCAT_RSH_CMD
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$XCAT_RCP_CMD
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Error:
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None
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Example:
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XCAT->resolve_node($target_properties);
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Comments:
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=cut
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#-------------------------------------------------------------------------------
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sub resolve_node
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{
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my ($class, $target_properties) = @_;
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$$target_properties{'remote-shell'} = $XCAT_RSH_CMD;
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$$target_properties{'remote-copy'} = $XCAT_RCP_CMD;
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return 1;
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}
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#-------------------------------------------------------------------------------
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=head3
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get_xcat_remote_cmds
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Using xCAT native commands, store the remote command settings for
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the remote shell and remote copy commands as defined in xCAT
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site.tab file.
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Arguments:
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None
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Returns:
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None
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Globals:
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$XCAT_RSH_CMD
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$XCAT_RCP_CMD
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Error:
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None
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Example:
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XCAT->get_xcat_remote_cmds
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Comments:
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Internal routine only
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=cut
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#-------------------------------------------------------------------------------
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sub get_xcat_remote_cmds
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{
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$XCAT_RSH_CMD = "/usr/bin/ssh"; # default
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$XCAT_RCP_CMD = "/usr/bin/scp"; #default
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my @remote_shell = xCAT::Utils->get_site_attribute("rsh");
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if ($remote_shell[0])
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{
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$XCAT_RSH_CMD = $remote_shell[0];
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}
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my @remote_copy = xCAT::Utils->get_site_attribute("rcp");
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if ($remote_copy[0])
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{
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$XCAT_RCP_CMD = $remote_copy[0];
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}
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}
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#-------------------------------------------------------------------------------
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=head3
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get_xcat_node_list
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Using xCAT native commands, this routine builds a cached list of
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node/device names defined in the xCAT context
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Arguments:
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None
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Returns:
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None
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Globals:
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%xcat_node_list
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Error:
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None
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Example:
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XCAT->get_xcat_node_list
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Comments:
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Internal routine only
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=cut
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#-------------------------------------------------------------------------------
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sub get_xcat_node_list
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{
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@xcat_node_list = xCAT::Utils->get_node_list;
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chomp(@xcat_node_list);
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}
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#-------------------------------------------------------------------------------
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=head3
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get_xcat_nodegroup_table
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Using xCAT native commands, this routine builds a cached list of
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node groups and their members defined in the xCAT context
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Arguments:
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None
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Returns:
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None
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Globals:
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%xcat_nodegroup_table
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Error:
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None
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Example:
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XCAT->get_xcat_nodegroup_table
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Comments:
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Internal routine only
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=cut
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#-------------------------------------------------------------------------------
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sub get_xcat_nodegroup_table
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{
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$node_list = "";
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my @nodegroups = xCAT::Utils->list_all_node_groups;
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for my $group (@nodegroups)
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{
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chomp($group);
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my @nodes = `nodels $group`;
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while (@nodes)
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{
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my $nodename = shift @nodes;
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chomp($nodename);
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$node_list .= $nodename;
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$node_list .= ",";
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}
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chop($node_list);
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$xcat_nodegroup_table{$group} = $node_list;
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$node_list = "";
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}
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}
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sub query_node
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{
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my ($class, $node, $flag) = @_;
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my @xcat_nodes = all_nodes();
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$~ = "NODES";
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if ($flag)
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{
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if (grep(/^$node$/, @xcat_nodes))
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{
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print("$node : Valid\n");
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}
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else
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{
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print("$node : Invalid\n");
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}
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}
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else
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{
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print("$node : Invalid\n");
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}
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}
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sub query_group
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{
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my ($class, $group) = @_;
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my @xcat_groups = all_nodegroups();
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$~ = "GROUPS";
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if (grep(/^$group$/, @xcat_groups))
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{
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print("$group : Valid\n");
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}
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else
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{
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print("$group : Invalid\n");
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}
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}
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1; #end
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