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			244 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			244 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable File
		
	
	
	
	
#! /usr/bin/perl
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# IBM(c) 2016 EPL license http://www.eclipse.org/legal/epl-v10.html
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BEGIN { $::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : -d '/opt/xcat' ? '/opt/xcat' : '/usr'; }
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use lib "$::XCATROOT/probe/lib/perl";
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use probe_utils;
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use File::Basename;
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use Net::Ping;
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use Getopt::Long qw(:config no_ignore_case);
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use Data::Dumper;
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use warnings;
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my $program_name = basename("$0");
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my $help;
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my $noderange = "";
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my $test;
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my $osimage;
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my $osimagecmd = "";
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my $output  = "stdout";
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my $verbose = 0;
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my $rst     = 0;
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$::USAGE = "Usage:
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    $program_name -h
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    $program_name [-V|--verbose]
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Description:
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    Use this command to check osimage defintions in xCAT DB. 
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Options:
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    -h : Get usage information of $program_name
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    -V : To print additional debug information.
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    --osimage=<name>: Provide the osimage name to run the probe against
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";
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#-------------------------------------
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# main process
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#-------------------------------------
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if (
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    !GetOptions("--help|h" => \$help,
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        "T"                  => \$test,
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        "osimage=s"          => \$osimage,
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        "V|verbose"          => \$VERBOSE))
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{
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    probe_utils->send_msg("$output", "f", "Invalid parameter for $program_name");
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    probe_utils->send_msg("$output", "d", "$::USAGE");
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    exit 1;
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}
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if ($help) {
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    if ($output ne "stdout") {
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        probe_utils->send_msg("$output", "d", "$::USAGE");
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    } else {
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        print "$::USAGE";
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    }
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    exit 0;
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}
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if ($test) {
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    probe_utils->send_msg("$output", "o", "Use this command to check osimage defintions in xCAT DB.");
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    exit 0;
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}
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if (scalar(@ARGV) >= 1) {
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    # After processing all the expected flags and arguments,
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    # there is still left over stuff on the command line
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    probe_utils->send_msg("$output", "f", "Invalid flag or parameter: @ARGV");
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    probe_utils->send_msg("$output", "d", "$::USAGE");
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    exit 1;
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}
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# Check for osimage definitions with duplicate values for rootimgdir
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sub check_for_duplicate_rootimgdir {
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    probe_utils->send_msg("$output", "i", "==> Checking for duplicate usage of the rootimgdir in diskless images...");
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    my $na = "N/A";
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    my %rootimgdir_osimage_hash;
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    my $any_dups = 0;
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    my $all_osimages_rootimgdir = `lsdef -t osimage $osimagecmd -i rootimgdir -c 2> /dev/null`;
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    chomp($all_osimages_rootimgdir);
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    my @all_osimages_rootimgdir_lines = split("[\n\r]", $all_osimages_rootimgdir);
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    if (scalar(@all_osimages_rootimgdir_lines) <= 0) {
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        # There were no osimages found. Issue a warning and exit.
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        probe_utils->send_msg("$output", "w", "No osimages were found.");
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        return 1;
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    }
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    # Build a hash of key="rootimgdir" value="osimagename"
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    foreach (@all_osimages_rootimgdir_lines) {
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        probe_utils->send_msg("$output", "d", "Processing $_.") if ($VERBOSE);
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        my ($osimage_name, $rootimgdir) = split ":", $_;
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        if ($rootimgdir eq " rootimgdir=") {
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            # Exclude entries that do not have rootimg set
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            probe_utils->send_msg("$output", "d", "No rootimgdir for osimage $osimage_name") if ($VERBOSE);
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            next;
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        }
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        # Check if hash already has the same key, indicating another osimage definition has the same rootimgdir
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        if (exists($rootimgdir_osimage_hash{$rootimgdir})) {
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            # Build a list of osimages that have the same rootimgdir
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            $rootimgdir_osimage_hash{$rootimgdir} .= "," . $osimage_name;
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            $any_dups = 1;
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        }
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        else {
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            $rootimgdir_osimage_hash{$rootimgdir} = $osimage_name;
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        }
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    }
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    #print Dumper(\%rootimgdir_osimage_hash) if ($VERBOSE);
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    my $rc = 1;
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    if ($any_dups) {
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        # Loop through each entry in hash to print a list of osimgage objects that point to the same rootimgdir
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        foreach $rootimgdirpath (keys %rootimgdir_osimage_hash) {
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            my @list_of_osimages = split ",", $rootimgdir_osimage_hash{$rootimgdirpath};
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            if (scalar(@list_of_osimages) > 1) {
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                # More than one entry in the hash value, means we
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                # have more than one osimage point to the same rootimgdir
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                my $print_list = join("\n  ",@list_of_osimages);
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                $rootimgdirpath=~s/^\s+//; #discard leading space
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                probe_utils->send_msg("$output", "w", "Identical root image directory ($rootimgdirpath) is configured for the diskless osimages: \n  $print_list");
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            }
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        }
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    }
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    else {
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        probe_utils->send_msg("$output", "o", "No diskless osimages with identical root image directories were found.");
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        $rc = 0;
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    }
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    return $rc;
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}
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# Check attributes in osimage definitions for valid format
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sub check_for_valid_osimage_attributes {
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    probe_utils->send_msg("$output", "i", "==> Checking for valid osimage template attribute ... ");
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    my $na = "N/A";
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    my $rc = 0;
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    my %rootimgdir_osimage_hash;
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    my $any_dups = 0;
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    # Check if any osimage object has "template" attribute set to service.tmpl or compute.tmpl
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    my $all_osimages_template = `lsdef -t osimage $osimagecmd -i template -c 2> /dev/null`;
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    chomp($all_osimages_template);
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    my @all_osimages_template_lines = split("[\n\r]", $all_osimages_template);
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    if (scalar(@all_osimages_template_lines) <= 0) {
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        # There were no osimages found. Issue a warning and exit.
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        probe_utils->send_msg("$output", "w", "No osimages were found.");
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        return 1;
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    }
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    foreach (@all_osimages_template_lines) {
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        probe_utils->send_msg("$output", "d", "Processing $_.") if ($VERBOSE);
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        my ($osimage_name, $template) = split ":", $_;
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        if ($template eq " template=") {
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            # Exclude entries that do not have template attribute set
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            probe_utils->send_msg("$output", "d", "No template for osimage $osimage_name") if ($VERBOSE);
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            next;
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        }
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        my ($junk, $template_file) = split "=", $template;
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        if (($template_file =~ /compute.tmpl/) || ($template_file =~ /service.tmpl/)) {
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            if ($template_file !~ /ubuntu/) {
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                # Skip Ubintu osimages, currently ok to have service.tmpl and compute.tmpl for them
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                probe_utils->send_msg("$output", "w", "Default 'template' value is being used by $osimage_name \n".
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                                      "  If this image was generated by 'copycds -n <os version>', make sure the <os version> specified\n".
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                                      "  follows xCAT naming convention (for example 'rhels7.2')");
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            }
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        }
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    }
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    return $rc;
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}
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sub check_valid_files_defined { 
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    probe_utils->send_msg("$output", "i", "==> Checking that valid files are specified in osimage attributes ...");
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    my $rc = 0;
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    my $osimage_list = `lsdef -t osimage $osimagecmd -s 2> /dev/null`;
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    chomp($osimage_list);
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    my @all_osimage_lists = split("[\n]", $osimage_list);
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    foreach (@all_osimage_lists) {
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        # loop over the osimage name
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        my ($osimage_name, $junk) = split " ", $_;
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        probe_utils->send_msg("$output", "d", "Inspecting osimage=$osimage_name") if ($VERBOSE);
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        my @attributes = qw ( otherpkglist pkglist template );
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        foreach (@attributes) {
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            # loop over the attributes to check
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            probe_utils->send_msg("$output", "d", "Checking attribute=$_ ...") if ($VERBOSE);
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            my $osimage_attribute = `lsdef -t osimage -o $osimage_name -i $_ -c 2> /dev/null`;
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            chomp($osimage_attribute);
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            my ($junk, $file) = split "=", $osimage_attribute;
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            if ($file eq "") {
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                # if no file is defined, skip 
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                next;
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            }
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            if ($file =~ /\,/) {
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                my @files = split /,/, $file;
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                foreach my $f (@files) {
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                    probe_utils->send_msg("$output", "d", "Defined in $_, checking for file: $f") if ($VERBOSE);
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                   if (! -e $f) {
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                       probe_utils->send_msg("$output", "f", "In $_, NON-EXISTANT FILE: $f");
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                       $rc = 1;
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                   }
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                } 
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            }
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        }
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    }
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    if ($rc == 0) { 
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        probe_utils->send_msg("$output", "o", "Files specified in the osimage attributes seem to be valid.");
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    }
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}
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#
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# MAIN
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#
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# Run all osimage probe checks one after another
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if ($osimage) {
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    $osimagecmd = "-o $osimage";
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    probe_utils->send_msg("$output", "d", "[osimagecheck] osimage passed in: $osimage") if ($VERBOSE);
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    # verify a valid osimage name was passed in
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    my $osimage_output = `lsdef -t osimage $osimagecmd 2>&1`;
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    if ($osimage_output =~ /Error: Could not find/) {
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        probe_utils->send_msg("$output", "f", "Invalid osimage name passed in: $osimage"); 
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        exit 1;
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    } 
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} else {
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    probe_utils->send_msg("$output", "d", "[osimagecheck] No osimage passed in, checking all osimages ...") if ($VERBOSE);
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}
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check_for_duplicate_rootimgdir();
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check_for_valid_osimage_attributes();
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check_valid_files_defined();
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