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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 File::Copy; | |
12 | use Data::Dumper; | |
13 | ||
14 | $UPSGRAPH::outdir = ""; | |
15 | $UPSGRAPH::step = 60; | |
16 | $UPSGRAPH::keep = (370*24*60*60)/$UPSGRAPH::step; | |
17 | $UPSGRAPH::hosts = (); | |
18 | ||
19 | do $ARGV[0] or die "can't read config: $!"; | |
20 | ||
21 | my $outdir = $UPSGRAPH::outdir; | |
22 | my $step = $UPSGRAPH::step; | |
23 | my $keep = $UPSGRAPH::keep; | |
24 | my $hosts = $UPSGRAPH::hosts; | |
25 | ||
26 | sub rrdcreate(@) { | |
27 | my $newrrd = shift; | |
28 | my $field = shift; | |
29 | my $vars = shift; | |
30 | my $start = shift; | |
31 | ||
32 | my @cmd = ("${newrrd}", "--step=${step}"); | |
33 | ||
34 | if (defined($start)) { | |
35 | push @cmd, "--start=${start}"; | |
36 | } | |
37 | ||
38 | push @cmd, "DS:${field}:GAUGE:600:" . | |
39 | $vars->{$field}->{'min'} . ":" . | |
40 | $vars->{$field}->{'max'} . " "; | |
41 | ||
42 | push @cmd, "RRA:AVERAGE:0.5:1:${keep}"; | |
43 | ||
44 | RRDs::create(@cmd); | |
45 | if (RRDs::error) { | |
46 | print "Error while creating: " . RRDs::error . "\n"; | |
47 | exit 1; | |
48 | } | |
49 | } | |
50 | ||
51 | sub fetch_snmp(@) { | |
52 | my $address = shift; | |
53 | my $community = shift; | |
54 | my $oid = shift; | |
55 | ||
56 | (my $session, my $error) = Net::SNMP->session(Hostname => $address, | |
57 | Community => $community); | |
58 | ||
59 | if (!$session) { | |
60 | print STDERR "session error: $error"; | |
61 | } | |
62 | ||
63 | $session->translate(0); | |
64 | ||
65 | my $result = $session->get_request($oid); | |
66 | ||
67 | $session->close; | |
68 | ||
69 | return undef if (!defined($result)); | |
70 | ||
71 | $result->{$oid}; | |
72 | } | |
73 | ||
74 | sub fetch_tcp(@) { | |
75 | my $address = shift; | |
76 | my $port = shift; | |
77 | ||
78 | my $sock = IO::Socket::INET->new(PeerAddr => $address, | |
79 | PeerPort => $port, | |
80 | Proto => 'tcp', | |
81 | Timeout => 1); | |
82 | ||
83 | return undef if (!$sock); | |
84 | ||
85 | chomp(my $value = <$sock>); | |
86 | ||
87 | close($sock); | |
88 | ||
89 | if (!$value) { | |
90 | return undef; | |
91 | } | |
92 | ||
93 | $value=~ s/\s//g; | |
94 | ||
95 | $value; | |
96 | } | |
97 | ||
98 | if ($> == 0) { | |
99 | if (@ARGV != 2) { | |
100 | print STDERR "Running as root, please provide UID as 2th argument!\n"; | |
101 | exit(1); | |
102 | } | |
103 | ||
104 | print "Running as root, switching to ".$ARGV[1]."\n"; | |
105 | $< = $> = $ARGV[1]; | |
106 | } | |
107 | ||
108 | foreach my $host (@$hosts) { | |
109 | my $rrdfile = $host->{'rrdfile'}; | |
110 | ||
111 | foreach my $var (keys(%{$host->{'vars'}})) { | |
112 | $host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'})); | |
113 | $host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'})); | |
114 | } | |
115 | ||
116 | if (-e "${rrdfile}") { | |
117 | print "Reading old ${rrdfile} to preserve data...\n"; | |
118 | ||
119 | my $rrdinfo = RRDs::info("${rrdfile}"); | |
120 | if (RRDs::error) { | |
121 | print "Error while getting info: " . RRDs::error . "\n"; | |
122 | exit 1; | |
123 | } | |
124 | ||
125 | (my $start, my $ostep, my $names, my $data) = | |
126 | RRDs::fetch("${rrdfile}", | |
127 | "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})), | |
128 | "AVERAGE"); | |
129 | ||
130 | if (RRDs::error) { | |
131 | print "Error while fetching data: " . RRDs::error . "\n"; | |
132 | exit 1; | |
133 | } | |
134 | ||
135 | foreach my $field (@$names) { | |
136 | if (! -e "${rrdfile}.${field}") { | |
137 | rrdcreate("${rrdfile}.${field}", | |
138 | "${field}", | |
139 | $host->{'vars'}, | |
140 | (${start}-${ostep})); | |
141 | } | |
142 | } | |
143 | ||
144 | my $pos = $start; | |
145 | foreach my $line (@$data) { | |
146 | foreach my $field (@$names) { | |
147 | my $val = shift (@$line); | |
148 | $val = 'U' if (!defined($val)); | |
149 | ||
150 | RRDs::update("${rrdfile}.${field}", "${pos}:${val}"); | |
151 | if (RRDs::error) { | |
152 | print "Can't insert data: " . RRDs::error . "\n"; | |
153 | exit 1; | |
154 | } | |
155 | ||
156 | } | |
157 | ||
158 | $pos += $ostep; | |
159 | ||
160 | if ((($pos-$start)/$ostep) == $#$data) { | |
161 | last; | |
162 | } | |
163 | } | |
164 | ||
165 | rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n"; | |
166 | } | |
167 | ||
168 | foreach my $field (@{$host->{'fields'}}) { | |
169 | if (! -e "${rrdfile}.${field}") { | |
170 | print "Creating ${rrdfile}.${field}...\n"; | |
171 | rrdcreate("${rrdfile}.${field}", | |
172 | "${field}", | |
173 | $host->{'vars'}); | |
174 | } | |
175 | ||
176 | my $rrdinfo = RRDs::info("${rrdfile}.${field}"); | |
177 | if (RRDs::error) { | |
178 | print "Error while getting info: " . RRDs::error . "\n"; | |
179 | exit 1; | |
180 | } | |
181 | ||
182 | if (defined($rrdinfo->{"ds[${field}].min"})) { | |
183 | if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) { | |
184 | RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'}); | |
185 | } | |
186 | } else { | |
187 | if ($host->{'vars'}->{$field}->{'min'} ne 'U') { | |
188 | RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'}); | |
189 | } | |
190 | } | |
191 | ||
192 | if (RRDs::error) { | |
193 | print "Error while setting min: " . RRDs::error . "\n"; | |
194 | exit 1; | |
195 | } | |
196 | ||
197 | if (defined($rrdinfo->{"ds[${field}].max"})) { | |
198 | if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) { | |
199 | RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'}); | |
200 | } | |
201 | } else { | |
202 | if ($host->{'vars'}->{$field}->{'max'} ne 'U') { | |
203 | RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'}); | |
204 | } | |
205 | } | |
206 | ||
207 | if (RRDs::error) { | |
208 | print "Error while setting max: " . RRDs::error . "\n"; | |
209 | exit 1; | |
210 | } | |
211 | ||
212 | if ($rrdinfo->{'rra[0].rows'} != $keep) { | |
213 | print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} . | |
214 | " to ${keep} samples.\n"; | |
215 | ||
216 | (my $start, my $ostep, my $names, my $data) = | |
217 | RRDs::fetch("${rrdfile}.${field}", | |
218 | "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})), | |
219 | "AVERAGE"); | |
220 | ||
221 | if (RRDs::error) { | |
222 | print "Error while fetching data: " . RRDs::error . "\n"; | |
223 | exit 1; | |
224 | } | |
225 | ||
226 | rrdcreate("${rrdfile}.${field}.new", | |
227 | "${field}", | |
228 | $host->{'vars'}, | |
229 | (${start}-${ostep})); | |
230 | ||
231 | print "Preserving data since " . localtime($start) . "\n"; | |
232 | ||
233 | my $pos = $start; | |
234 | foreach my $line (@$data) { | |
235 | my $vline = "${pos}"; | |
236 | ||
237 | foreach my $val (@$line) { | |
238 | $val = 'U' if (!defined($val)); | |
239 | $vline .= ":${val}"; | |
240 | } | |
241 | RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n"; | |
242 | ||
243 | if (RRDs::error) { | |
244 | print "Error while updating: " . RRDs::error . "\n"; | |
245 | exit 1; | |
246 | } | |
247 | $pos += $ostep; | |
248 | ||
249 | if ((($pos-$start)/$ostep) == $#$data) { | |
250 | last; | |
251 | } | |
252 | } | |
253 | ||
254 | rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n"; | |
255 | rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n"; | |
256 | ||
257 | $rrdinfo = RRDs::info("${rrdfile}.${field}"); | |
258 | if (RRDs::error) { | |
259 | print "Error while getting info: " . RRDs::error . "\n"; | |
260 | exit 1; | |
261 | } | |
262 | ||
263 | if ($rrdinfo->{'rra[0].rows'} != $keep) { | |
264 | print "Failed!\n"; | |
265 | exit 1; | |
266 | } | |
267 | } | |
268 | } | |
269 | } | |
270 | ||
271 | my $child = fork(); | |
272 | ||
273 | die "fork failed!" if (!defined($child)); | |
274 | ||
275 | exit 0 if ($child != 0); | |
276 | ||
277 | while(1) { | |
278 | open(HTML, ">${outdir}/index.html.new"); | |
279 | ||
280 | 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>'; | |
281 | print HTML '<body bgcolor="#ffffff">'; | |
282 | ||
283 | foreach my $host (@$hosts) { | |
284 | print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>] "; | |
285 | } | |
286 | print HTML "<br>\n"; | |
287 | ||
288 | foreach my $host (@$hosts) { | |
289 | print HTML "<br>\n"; | |
290 | print HTML "<a name=\"".${host}->{'name'}."\"></a>\n"; | |
291 | my $vars = $host->{'vars'}; | |
292 | my $rrdfile = $host->{'rrdfile'}; | |
293 | my $hostname = $host->{'name'}; | |
294 | ||
295 | foreach my $var (@{$host->{'fields'}}) { | |
296 | delete $vars->{$var}->{'value'}; | |
297 | ||
298 | my $result; | |
299 | ||
300 | if ((!defined($vars->{$var}->{'proto'})) || | |
301 | ($vars->{$var}->{'proto'} eq '') || | |
302 | ($vars->{$var}->{'proto'} eq 'snmp')) { | |
303 | $result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'}); | |
304 | } elsif ($vars->{$var}->{'proto'} eq 'tcp') { | |
305 | $result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'}); | |
306 | } | |
307 | ||
308 | next unless (defined $result); | |
309 | ||
310 | $vars->{$var}->{'value'} = $result; | |
311 | if (defined($vars->{$var}->{'factor'})) { | |
312 | $vars->{$var}->{'value'} *= $vars->{$var}->{'factor'}; | |
313 | } | |
314 | } | |
315 | ||
316 | foreach my $var (@{$host->{'fields'}}) { | |
317 | if (!(defined($vars->{$var}->{'value'}))) { | |
318 | $vars->{$var}->{'value'} = 'U'; | |
319 | } | |
320 | RRDs::update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'}); | |
321 | } | |
322 | if (RRDs::error) { | |
323 | print "Error while updating: " . RRDs::error . "\n"; | |
324 | } | |
325 | ||
326 | foreach my $var (@{$host->{'fields'}}) { | |
327 | my @graphdef = ("--lazy", "-t", $hostname." - ".$vars->{$var}->{'name'}, "DEF:${var}=${rrdfile}.${var}:${var}:AVERAGE", "LINE1:${var}#FF0000"); | |
328 | (my $averages, my $width, my $height) = | |
329 | RRDs::graph("${outdir}/${hostname}.${var}.png.new", | |
330 | "-w", "720", @graphdef); | |
331 | ||
332 | if (RRDs::error) { | |
333 | print "Error while graphing: " . RRDs::error . "\n"; | |
334 | } else { | |
335 | copy("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png"); | |
336 | } | |
337 | ||
338 | print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n"; | |
339 | ||
340 | open (HTML2, ">${outdir}/${hostname}.${var}.html.new"); | |
341 | print HTML2 "<html><head><title>" . $vars->{$var}->{'name'} . "</title></head>"; | |
342 | print HTML2 '<body bgcolor="#ffffff">'; | |
343 | ||
344 | ||
345 | push @graphdef, "VDEF:min=${var},MINIMUM"; | |
346 | push @graphdef, "GPRINT:min:Minimum\\: %.2lf"; | |
347 | ||
348 | push @graphdef, "VDEF:avg=${var},AVERAGE"; | |
349 | push @graphdef, "GPRINT:avg:Average\\: %.2lf"; | |
350 | ||
351 | push @graphdef, "VDEF:max=${var},MAXIMUM"; | |
352 | push @graphdef, "GPRINT:max:Maximum\\: %.2lf"; | |
353 | ||
354 | push @graphdef, "VDEF:cur=${var},LAST"; | |
355 | push @graphdef, "GPRINT:cur:Current\\: %.2lf"; | |
356 | ||
357 | ($averages, $width, $height) = | |
358 | RRDs::graph("${outdir}/${hostname}.${var}.long.png.new", | |
359 | "-w", "1008", @graphdef); | |
360 | ||
361 | if (RRDs::error) { | |
362 | print "Error while graphing: " . RRDs::error . "\n"; | |
363 | } else { | |
364 | copy("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png"); | |
365 | } | |
366 | ||
367 | print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
368 | ||
369 | ($averages, $width, $height) = | |
370 | RRDs::graph("${outdir}/${hostname}.${var}.week.png.new", | |
371 | "-w", "1008", "-e", "now", "-s", "end-1w", @graphdef); | |
372 | ||
373 | if (RRDs::error) { | |
374 | print "Error while graphing: " . RRDs::error . "\n"; | |
375 | } else { | |
376 | copy("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png"); | |
377 | } | |
378 | ||
379 | print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
380 | ||
381 | ($averages, $width, $height) = | |
382 | RRDs::graph("${outdir}/${hostname}.${var}.year.png.new", | |
383 | "-w", "1008", "-e", "now", "-s", "end-1y", @graphdef); | |
384 | ||
385 | if (RRDs::error) { | |
386 | print "Error while graphing: " . RRDs::error . "\n"; | |
387 | } else { | |
388 | copy("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png"); | |
389 | } | |
390 | ||
391 | print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
392 | ||
393 | print HTML2 "</body></html>\n"; | |
394 | close(HTML2); | |
395 | rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html"); | |
396 | } | |
397 | } | |
398 | ||
399 | print HTML "</body></html>\n"; | |
400 | print HTML "<br>Generated on: " . localtime(time()); | |
401 | print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.'; | |
402 | ||
403 | close(HTML); | |
404 | ||
405 | rename("${outdir}/index.html.new", "${outdir}/index.html"); | |
406 | ||
407 | sleep(${step}/2); | |
408 | } |