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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 | foreach my $var (keys(%{$host->{'vars'}})) { | |
111 | $host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'})); | |
112 | $host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'})); | |
113 | } | |
114 | ||
115 | if (-e "${rrdfile}") { | |
116 | print "Reading old ${rrdfile} to preserve data...\n"; | |
117 | ||
118 | my $rrdinfo = RRDs::info("${rrdfile}"); | |
119 | if (RRDs::error) { | |
120 | print "Error while getting info: " . RRDs::error . "\n"; | |
121 | exit 1; | |
122 | } | |
123 | ||
124 | (my $start, my $ostep, my $names, my $data) = | |
125 | RRDs::fetch("${rrdfile}", | |
126 | "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})), | |
127 | "AVERAGE"); | |
128 | ||
129 | if (RRDs::error) { | |
130 | print "Error while fetching data: " . RRDs::error . "\n"; | |
131 | exit 1; | |
132 | } | |
133 | ||
134 | foreach my $field (@$names) { | |
135 | if (! -e "${rrdfile}.${field}") { | |
136 | rrdcreate("${rrdfile}.${field}", | |
137 | "${field}", | |
138 | $host->{'vars'}, | |
139 | (${start}-${ostep})); | |
140 | } | |
141 | } | |
142 | ||
143 | my $pos = $start; | |
144 | foreach my $line (@$data) { | |
145 | foreach my $field (@$names) { | |
146 | my $val = shift (@$line); | |
147 | $val = 'U' if (!defined($val)); | |
148 | ||
149 | RRDs::update("${rrdfile}.${field}", "${pos}:${val}"); | |
150 | if (RRDs::error) { | |
151 | print "Can't insert data: " . RRDs::error . "\n"; | |
152 | exit 1; | |
153 | } | |
154 | ||
155 | } | |
156 | ||
157 | $pos += $ostep; | |
158 | ||
159 | if ((($pos-$start)/$ostep) == $#$data) { | |
160 | last; | |
161 | } | |
162 | } | |
163 | ||
164 | rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n"; | |
165 | } | |
166 | ||
167 | foreach my $field (@{$host->{'fields'}}) { | |
168 | if (! -e "${rrdfile}.${field}") { | |
169 | print "Creating ${rrdfile}.${field}...\n"; | |
170 | rrdcreate("${rrdfile}.${field}", | |
171 | "${field}", | |
172 | $host->{'vars'}); | |
173 | } | |
174 | ||
175 | my $rrdinfo = RRDs::info("${rrdfile}.${field}"); | |
176 | if (RRDs::error) { | |
177 | print "Error while getting info: " . RRDs::error . "\n"; | |
178 | exit 1; | |
179 | } | |
180 | ||
181 | if (defined($rrdinfo->{"ds[${field}].min"})) { | |
182 | if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) { | |
183 | RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'}); | |
184 | } | |
185 | } else { | |
186 | if ($host->{'vars'}->{$field}->{'min'} ne 'U') { | |
187 | RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'}); | |
188 | } | |
189 | } | |
190 | ||
191 | if (RRDs::error) { | |
192 | print "Error while setting min: " . RRDs::error . "\n"; | |
193 | exit 1; | |
194 | } | |
195 | ||
196 | if (defined($rrdinfo->{"ds[${field}].max"})) { | |
197 | if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) { | |
198 | RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'}); | |
199 | } | |
200 | } else { | |
201 | if ($host->{'vars'}->{$field}->{'max'} ne 'U') { | |
202 | RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'}); | |
203 | } | |
204 | } | |
205 | ||
206 | if (RRDs::error) { | |
207 | print "Error while setting max: " . RRDs::error . "\n"; | |
208 | exit 1; | |
209 | } | |
210 | ||
211 | if ($rrdinfo->{'rra[0].rows'} != $keep) { | |
212 | print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} . | |
213 | " to ${keep} samples.\n"; | |
214 | ||
215 | (my $start, my $ostep, my $names, my $data) = | |
216 | RRDs::fetch("${rrdfile}.${field}", | |
217 | "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})), | |
218 | "AVERAGE"); | |
219 | ||
220 | if (RRDs::error) { | |
221 | print "Error while fetching data: " . RRDs::error . "\n"; | |
222 | exit 1; | |
223 | } | |
224 | ||
225 | rrdcreate("${rrdfile}.${field}.new", | |
226 | "${field}", | |
227 | $host->{'vars'}, | |
228 | (${start}-${ostep})); | |
229 | ||
230 | print "Preserving data since " . localtime($start) . "\n"; | |
231 | ||
232 | my $pos = $start; | |
233 | foreach my $line (@$data) { | |
234 | my $vline = "${pos}"; | |
235 | ||
236 | foreach my $val (@$line) { | |
237 | $val = 'U' if (!defined($val)); | |
238 | $vline .= ":${val}"; | |
239 | } | |
240 | RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n"; | |
241 | ||
242 | if (RRDs::error) { | |
243 | print "Error while updating: " . RRDs::error . "\n"; | |
244 | exit 1; | |
245 | } | |
246 | $pos += $ostep; | |
247 | ||
248 | if ((($pos-$start)/$ostep) == $#$data) { | |
249 | last; | |
250 | } | |
251 | } | |
252 | ||
253 | rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n"; | |
254 | rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n"; | |
255 | ||
256 | $rrdinfo = RRDs::info("${rrdfile}.${field}"); | |
257 | if (RRDs::error) { | |
258 | print "Error while getting info: " . RRDs::error . "\n"; | |
259 | exit 1; | |
260 | } | |
261 | ||
262 | if ($rrdinfo->{'rra[0].rows'} != $keep) { | |
263 | print "Failed!\n"; | |
264 | exit 1; | |
265 | } | |
266 | } | |
267 | } | |
268 | } | |
269 | ||
270 | my $child = fork(); | |
271 | ||
272 | die "fork failed!" if (!defined($child)); | |
273 | ||
274 | exit 0 if ($child != 0); | |
275 | ||
276 | while(1) { | |
277 | open(HTML, ">${outdir}/index.html.new"); | |
278 | ||
279 | 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>'; | |
280 | print HTML '<body bgcolor="#ffffff">'; | |
281 | ||
282 | foreach my $host (@$hosts) { | |
283 | print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>] "; | |
284 | } | |
285 | print HTML "<br>\n"; | |
286 | ||
287 | foreach my $host (@$hosts) { | |
288 | print HTML "<br>\n"; | |
289 | print HTML "<a name=\"".${host}->{'name'}."\"></a>\n"; | |
290 | my $vars = $host->{'vars'}; | |
291 | my $rrdfile = $host->{'rrdfile'}; | |
292 | my $hostname = $host->{'name'}; | |
293 | ||
294 | foreach my $var (@{$host->{'fields'}}) { | |
295 | delete $vars->{$var}->{'value'}; | |
296 | ||
297 | my $result; | |
298 | ||
299 | if ((!defined($vars->{$var}->{'proto'})) || | |
300 | ($vars->{$var}->{'proto'} eq '') || | |
301 | ($vars->{$var}->{'proto'} eq 'snmp')) { | |
302 | $result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'}); | |
303 | } elsif ($vars->{$var}->{'proto'} eq 'tcp') { | |
304 | $result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'}); | |
305 | } | |
306 | ||
307 | next unless (defined $result); | |
308 | ||
309 | $vars->{$var}->{'value'} = $result; | |
310 | if (defined($vars->{$var}->{'factor'})) { | |
311 | $vars->{$var}->{'value'} *= $vars->{$var}->{'factor'}; | |
312 | } | |
313 | } | |
314 | ||
315 | foreach my $var (@{$host->{'fields'}}) { | |
316 | if (!(defined($vars->{$var}->{'value'}))) { | |
317 | $vars->{$var}->{'value'} = 'U'; | |
318 | } | |
319 | RRDs::update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'}); | |
320 | } | |
321 | if (RRDs::error) { | |
322 | print "Error while updating: " . RRDs::error . "\n"; | |
323 | } | |
324 | ||
325 | foreach my $var (@{$host->{'fields'}}) { | |
326 | my @graphdef = ("--lazy", "-t", $hostname." - ".$vars->{$var}->{'name'}, "DEF:${var}=${rrdfile}.${var}:${var}:AVERAGE", "LINE1:${var}#FF0000"); | |
327 | (my $averages, my $width, my $height) = | |
328 | RRDs::graph("${outdir}/${hostname}.${var}.png.new", | |
329 | "-w", "720", @graphdef); | |
330 | ||
331 | if (RRDs::error) { | |
332 | print "Error while graphing: " . RRDs::error . "\n"; | |
333 | } else { | |
334 | rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png"); | |
335 | } | |
336 | ||
337 | print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n"; | |
338 | ||
339 | open (HTML2, ">${outdir}/${hostname}.${var}.html.new"); | |
340 | print HTML2 "<html><head><title>" . $vars->{$var}->{'name'} . "</title></head>"; | |
341 | print HTML2 '<body bgcolor="#ffffff">'; | |
342 | ||
343 | ||
344 | push @graphdef, "VDEF:min=${var},MINIMUM"; | |
345 | push @graphdef, "GPRINT:min:Minimum\\: %.2lf"; | |
346 | ||
347 | push @graphdef, "VDEF:avg=${var},AVERAGE"; | |
348 | push @graphdef, "GPRINT:avg:Average\\: %.2lf"; | |
349 | ||
350 | push @graphdef, "VDEF:max=${var},MAXIMUM"; | |
351 | push @graphdef, "GPRINT:max:Maximum\\: %.2lf"; | |
352 | ||
353 | push @graphdef, "VDEF:cur=${var},LAST"; | |
354 | push @graphdef, "GPRINT:cur:Current\\: %.2lf"; | |
355 | ||
356 | ($averages, $width, $height) = | |
357 | RRDs::graph("${outdir}/${hostname}.${var}.long.png.new", | |
358 | "-w", "1008", @graphdef); | |
359 | ||
360 | if (RRDs::error) { | |
361 | print "Error while graphing: " . RRDs::error . "\n"; | |
362 | } else { | |
363 | rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png"); | |
364 | } | |
365 | ||
366 | print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
367 | ||
368 | ($averages, $width, $height) = | |
369 | RRDs::graph("${outdir}/${hostname}.${var}.week.png.new", | |
370 | "-w", "1008", "-e", "now", "-s", "end-1w", @graphdef); | |
371 | ||
372 | if (RRDs::error) { | |
373 | print "Error while graphing: " . RRDs::error . "\n"; | |
374 | } else { | |
375 | rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png"); | |
376 | } | |
377 | ||
378 | print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
379 | ||
380 | ($averages, $width, $height) = | |
381 | RRDs::graph("${outdir}/${hostname}.${var}.year.png.new", | |
382 | "-w", "1008", "-e", "now", "-s", "end-1y", @graphdef); | |
383 | ||
384 | if (RRDs::error) { | |
385 | print "Error while graphing: " . RRDs::error . "\n"; | |
386 | } else { | |
387 | rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png"); | |
388 | } | |
389 | ||
390 | print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
391 | ||
392 | print HTML2 "</body></html>\n"; | |
393 | close(HTML2); | |
394 | rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html"); | |
395 | } | |
396 | } | |
397 | ||
398 | print HTML "</body></html>\n"; | |
399 | print HTML "<br>Generated on: " . localtime(time()); | |
400 | print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.'; | |
401 | ||
402 | close(HTML); | |
403 | ||
404 | rename("${outdir}/index.html.new", "${outdir}/index.html"); | |
405 | ||
406 | sleep(${step}/2); | |
407 | } |