remove temp limits
[upsgraph] / upsgraph.pl
1 #!/usr/bin/perl -w
2
3 if ((@ARGV != 1) && (@ARGV != 2)) {
4 print STDERR "Syntax: ${0} configfile [uid]\n";
5 exit(1);
6 }
7
8 use Net::SNMP;
9 use IO::Socket::INET;
10 use RRDs;
11 use Data::Dumper;
12
13 $UPSGRAPH::outdir = "";
14 $UPSGRAPH::step = 60;
15 $UPSGRAPH::keep = (370*24*60*60)/$UPSGRAPH::step;
16 $UPSGRAPH::hosts = ();
17
18 do $ARGV[0] or die "can't read config: $!";
19
20 my $outdir = $UPSGRAPH::outdir;
21 my $step = $UPSGRAPH::step;
22 my $keep = $UPSGRAPH::keep;
23 my $hosts = $UPSGRAPH::hosts;
24
25 sub rrdcreate(@) {
26 my $newrrd = shift;
27 my $field = shift;
28 my $vars = shift;
29 my $start = shift;
30
31 my @cmd = ("${newrrd}", "--step=${step}");
32
33 if (defined($start)) {
34 push @cmd, "--start=${start}";
35 }
36
37 push @cmd, "DS:${field}:GAUGE:600:" .
38 $vars->{$field}->{'min'} . ":" .
39 $vars->{$field}->{'max'} . " ";
40
41 push @cmd, "RRA:AVERAGE:0.5:1:${keep}";
42
43 RRDs::create(@cmd);
44 if (RRDs::error) {
45 print "Error while creating: " . RRDs::error . "\n";
46 exit 1;
47 }
48 }
49
50 sub fetch_snmp(@) {
51 my $address = shift;
52 my $community = shift;
53 my $oid = shift;
54
55 (my $session, my $error) = Net::SNMP->session(Hostname => $address,
56 Community => $community);
57
58 if (!$session) {
59 print STDERR "session error: $error";
60 }
61
62 $session->translate(0);
63
64 my $result = $session->get_request($oid);
65
66 $session->close;
67
68 return undef if (!defined($result));
69
70 $result->{$oid};
71 }
72
73 sub fetch_tcp(@) {
74 my $address = shift;
75 my $port = shift;
76
77 my $sock = IO::Socket::INET->new(PeerAddr => $address,
78 PeerPort => $port,
79 Proto => 'tcp',
80 Timeout => 1);
81
82 return undef if (!$sock);
83
84 chomp(my $value = <$sock>);
85
86 close($sock);
87
88 if (!$value) {
89 return undef;
90 }
91
92 $value=~ s/\s//g;
93
94 $value;
95 }
96
97 if ($> == 0) {
98 if (@ARGV != 2) {
99 print STDERR "Running as root, please provide UID as 2th argument!\n";
100 exit(1);
101 }
102
103 print "Running as root, switching to ".$ARGV[1]."\n";
104 $< = $> = $ARGV[1];
105 }
106
107 foreach my $host (@$hosts) {
108 my $rrdfile = $host->{'rrdfile'};
109
110 if (-e "${rrdfile}") {
111 print "Reading old ${rrdfile} to preserve data...\n";
112
113 my $rrdinfo = RRDs::info("${rrdfile}");
114 if (RRDs::error) {
115 print "Error while getting info: " . RRDs::error . "\n";
116 exit 1;
117 }
118
119 (my $start, my $ostep, my $names, my $data) =
120 RRDs::fetch("${rrdfile}",
121 "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
122 "AVERAGE");
123
124 if (RRDs::error) {
125 print "Error while fetching data: " . RRDs::error . "\n";
126 exit 1;
127 }
128
129 foreach my $field (@$names) {
130 if (! -e "${rrdfile}.${field}") {
131 rrdcreate("${rrdfile}.${field}",
132 "${field}",
133 $host->{'vars'},
134 (${start}-${ostep}));
135 }
136 }
137
138 my $pos = $start;
139 foreach my $line (@$data) {
140 foreach my $field (@$names) {
141 my $val = shift (@$line);
142 $val = 'U' if (!defined($val));
143
144 RRDs::update("${rrdfile}.${field}", "${pos}:${val}");
145 if (RRDs::error) {
146 print "Can't insert data: " . RRDs::error . "\n";
147 exit 1;
148 }
149
150 }
151
152 $pos += $ostep;
153
154 if ((($pos-$start)/$ostep) == $#$data) {
155 last;
156 }
157 }
158
159 rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n";
160 }
161
162 foreach my $field (@{$host->{'fields'}}) {
163 if (! -e "${rrdfile}.${field}") {
164 print "Creating ${rrdfile}.${field}...\n";
165 rrdcreate("${rrdfile}.${field}",
166 "${field}",
167 $host->{'vars'});
168 }
169
170 my $rrdinfo = RRDs::info("${rrdfile}.${field}");
171 if (RRDs::error) {
172 print "Error while getting info: " . RRDs::error . "\n";
173 exit 1;
174 }
175
176 if (defined($rrdinfo->{"ds[${field}].min"})) {
177 if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) {
178 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
179 }
180 } else {
181 if ($host->{'vars'}->{$field}->{'min'} ne 'U') {
182 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
183 }
184 }
185
186 if (RRDs::error) {
187 print "Error while setting min: " . RRDs::error . "\n";
188 exit 1;
189 }
190
191 if (defined($rrdinfo->{"ds[${field}].max"})) {
192 if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) {
193 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
194 }
195 } else {
196 if ($host->{'vars'}->{$field}->{'max'} ne 'U') {
197 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
198 }
199 }
200
201 if (RRDs::error) {
202 print "Error while setting max: " . RRDs::error . "\n";
203 exit 1;
204 }
205
206 if ($rrdinfo->{'rra[0].rows'} != $keep) {
207 print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} .
208 " to ${keep} samples.\n";
209
210 (my $start, my $ostep, my $names, my $data) =
211 RRDs::fetch("${rrdfile}.${field}",
212 "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
213 "AVERAGE");
214
215 if (RRDs::error) {
216 print "Error while fetching data: " . RRDs::error . "\n";
217 exit 1;
218 }
219
220 rrdcreate("${rrdfile}.${field}.new",
221 "${field}",
222 $host->{'vars'},
223 (${start}-${ostep}));
224
225 print "Preserving data since " . localtime($start) . "\n";
226
227 my $pos = $start;
228 foreach my $line (@$data) {
229 my $vline = "${pos}";
230
231 foreach my $val (@$line) {
232 $val = 'U' if (!defined($val));
233 $vline .= ":${val}";
234 }
235 RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n";
236
237 if (RRDs::error) {
238 print "Error while updating: " . RRDs::error . "\n";
239 exit 1;
240 }
241 $pos += $ostep;
242
243 if ((($pos-$start)/$ostep) == $#$data) {
244 last;
245 }
246 }
247
248 rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n";
249 rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n";
250
251 $rrdinfo = RRDs::info("${rrdfile}.${field}");
252 if (RRDs::error) {
253 print "Error while getting info: " . RRDs::error . "\n";
254 exit 1;
255 }
256
257 if ($rrdinfo->{'rra[0].rows'} != $keep) {
258 print "Failed!\n";
259 exit 1;
260 }
261 }
262 }
263 }
264
265 my $child = fork();
266
267 die "fork failed!" if (!defined($child));
268
269 exit 0 if ($child != 0);
270
271 while(1) {
272 open(HTML, ">${outdir}/index.html.new");
273
274 print HTML '<html><head><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>Status</title></head>';
275 print HTML '<body bgcolor="#ffffff">';
276
277 foreach my $host (@$hosts) {
278 print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>]&nbsp;";
279 }
280 print HTML "<br>\n";
281
282 foreach my $host (@$hosts) {
283 print HTML "<br>\n";
284 print HTML "<a name=\"".${host}->{'name'}."\"></a>\n";
285 my $vars = $host->{'vars'};
286 my $rrdfile = $host->{'rrdfile'};
287 my $hostname = $host->{'name'};
288
289 foreach my $var (@{$host->{'fields'}}) {
290 delete $vars->{$var}->{'value'};
291
292 my $result;
293
294 if ((!defined($vars->{$var}->{'proto'})) ||
295 ($vars->{$var}->{'proto'} eq '') ||
296 ($vars->{$var}->{'proto'} eq 'snmp')) {
297 $result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'});
298 } elsif ($vars->{$var}->{'proto'} eq 'tcp') {
299 $result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'});
300 }
301
302 next unless (defined $result);
303
304 $vars->{$var}->{'value'} = $result;
305 if (defined($vars->{$var}->{'factor'})) {
306 $vars->{$var}->{'value'} *= $vars->{$var}->{'factor'};
307 }
308 }
309
310 foreach my $var (@{$host->{'fields'}}) {
311 if (!(defined($vars->{$var}->{'value'}))) {
312 $vars->{$var}->{'value'} = 'U';
313 }
314 RRDs::update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'});
315 }
316 if (RRDs::error) {
317 print "Error while updating: " . RRDs::error . "\n";
318 }
319
320 foreach my $var (@{$host->{'fields'}}) {
321 my @graphdef = ("-t", $hostname." - ".$vars->{$var}->{'name'}, "DEF:${var}=${rrdfile}.${var}:${var}:AVERAGE", "LINE1:${var}#FF0000");
322 (my $averages, my $width, my $height) =
323 RRDs::graph("${outdir}/${hostname}.${var}.png.new",
324 "-w", "720", @graphdef);
325
326 if (RRDs::error) {
327 print "Error while graphing: " . RRDs::error . "\n";
328 } else {
329 rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png");
330 }
331
332 print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n";
333
334 open (HTML2, ">${outdir}/${hostname}.${var}.html.new");
335 print HTML2 "<html><head><title>" . $vars->{$var}->{'name'} . "</title></head>";
336 print HTML2 '<body bgcolor="#ffffff">';
337
338
339 push @graphdef, "VDEF:min=${var},MINIMUM";
340 push @graphdef, "GPRINT:min:Minimum\\: %.2lf";
341
342 push @graphdef, "VDEF:avg=${var},AVERAGE";
343 push @graphdef, "GPRINT:avg:Average\\: %.2lf";
344
345 push @graphdef, "VDEF:max=${var},MAXIMUM";
346 push @graphdef, "GPRINT:max:Maximum\\: %.2lf";
347
348 push @graphdef, "VDEF:cur=${var},LAST";
349 push @graphdef, "GPRINT:cur:Current\\: %.2lf";
350
351 ($averages, $width, $height) =
352 RRDs::graph("${outdir}/${hostname}.${var}.long.png.new",
353 "-w", "1008", @graphdef);
354
355 if (RRDs::error) {
356 print "Error while graphing: " . RRDs::error . "\n";
357 } else {
358 rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png");
359 }
360
361 print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>";
362
363 ($averages, $width, $height) =
364 RRDs::graph("${outdir}/${hostname}.${var}.week.png.new",
365 "-w", "1008", "-e", "now", "-s", "end-1w", @graphdef);
366
367 if (RRDs::error) {
368 print "Error while graphing: " . RRDs::error . "\n";
369 } else {
370 rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png");
371 }
372
373 print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>";
374
375 ($averages, $width, $height) =
376 RRDs::graph("${outdir}/${hostname}.${var}.year.png.new",
377 "-w", "1008", "-e", "now", "-s", "end-1y", @graphdef);
378
379 if (RRDs::error) {
380 print "Error while graphing: " . RRDs::error . "\n";
381 } else {
382 rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png");
383 }
384
385 print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>";
386
387 print HTML2 "</body></html>\n";
388 close(HTML2);
389 rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html");
390 }
391 }
392
393 print HTML "</body></html>\n";
394 print HTML "<br>Generated on: " . localtime(time());
395 print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.';
396
397 close(HTML);
398
399 rename("${outdir}/index.html.new", "${outdir}/index.html");
400
401 sleep(${step}/2);
402 }
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