nginx-otel-nix/tests/h3_otel_collector.t
Eugene Grebenschikov 6719c7beff add functional tests
2023-08-15 16:21:08 -07:00

394 lines
13 KiB
Perl

#!/usr/bin/perl
# (C) Nginx, Inc.
# Tests for OTel exporter in case HTTP/3 using otelcol.
###############################################################################
use warnings;
use strict;
use Test::More;
BEGIN { use FindBin; chdir($FindBin::Bin); }
use Test::Nginx;
use Test::Nginx::HTTP3;
###############################################################################
select STDERR; $| = 1;
select STDOUT; $| = 1;
plan(skip_all => "depends on logs content") unless $ENV{TEST_NGINX_UNSAFE};
eval { require JSON::PP; };
plan(skip_all => "JSON::PP not installed") if $@;
my $t = Test::Nginx->new()->has(qw/http_v2 http_v3 rewrite cryptx/)
->has_daemon(qw/openssl/)
->write_file_expand('nginx.conf', <<'EOF');
%%TEST_GLOBALS%%
daemon off;
events {
}
http {
%%TEST_GLOBALS_HTTP%%
ssl_certificate_key localhost.key;
ssl_certificate localhost.crt;
ssl_protocols TLSv1.3;
otel_exporter {
endpoint 127.0.0.1:%%PORT_4317%%;
interval 1s;
batch_size 10;
batch_count 2;
}
otel_service_name test_server;
otel_trace on;
server {
listen 127.0.0.1:%%PORT_8980_UDP%% quic;
listen 127.0.0.1:8081;
server_name localhost;
location /trace-on {
otel_trace_context extract;
otel_span_name default_location;
otel_span_attr http.request.header.completion
$request_completion;
otel_span_attr http.response.header.content.type
$sent_http_content_type;
otel_span_attr http.request $request;
add_header "X-Otel-Trace-Id" $otel_trace_id;
add_header "X-Otel-Span-Id" $otel_span_id;
add_header "X-Otel-Parent-Id" $otel_parent_id;
add_header "X-Otel-Parent-Sampled" $otel_parent_sampled;
return 200 "TRACE-ON";
}
location /context-ignore {
otel_trace_context ignore;
otel_span_name context_ignore;
add_header "X-Otel-Parent-Id" $otel_parent_id;
proxy_pass http://127.0.0.1:8081/trace-off;
}
location /context-extract {
otel_trace_context extract;
otel_span_name context_extract;
add_header "X-Otel-Parent-Id" $otel_parent_id;
proxy_pass http://127.0.0.1:8081/trace-off;
}
location /context-inject {
otel_trace_context inject;
otel_span_name context_inject;
add_header "X-Otel-Parent-Id" $otel_parent_id;
proxy_pass http://127.0.0.1:8081/trace-off;
}
location /context-propagate {
otel_trace_context propagate;
otel_span_name context_propogate;
add_header "X-Otel-Parent-Id" $otel_parent_id;
proxy_pass http://127.0.0.1:8081/trace-off;
}
location /trace-off {
otel_trace off;
add_header "X-Otel-Traceparent" $http_traceparent;
add_header "X-Otel-Tracestate" $http_tracestate;
return 200 "TRACE-OFF";
}
}
}
EOF
$t->write_file_expand('otel-config.yaml', <<EOF);
receivers:
otlp:
protocols:
grpc:
endpoint: 127.0.0.1:%%PORT_4317%%
exporters:
logging:
loglevel: debug
file:
path: ${\ $t->testdir() }/otel.json
service:
pipelines:
traces:
receivers: [otlp]
exporters: [logging, file]
metrics:
receivers: [otlp]
exporters: [logging, file]
EOF
$t->write_file('openssl.conf', <<'EOF');
[ req ]
default_bits = 2048
encrypt_key = no
distinguished_name = req_distinguished_name
[ req_distinguished_name ]
EOF
my $d = $t->testdir();
foreach my $name ('localhost') {
system('openssl req -x509 -new '
. "-config $d/openssl.conf -subj /CN=$name/ "
. "-out $d/$name.crt -keyout $d/$name.key "
. ">>$d/openssl.out 2>&1") == 0
or die "Can't create certificate for $name: $!\n";
}
#suppress otel collector output
open OLDERR, ">&", \*STDERR;
open STDERR, ">>" , $^O eq 'MSWin32' ? 'nul' : '/dev/null';
$t->run_daemon('../otelcol', '--config', $t->testdir().'/otel-config.yaml');
open STDERR, ">&", \*OLDERR;
$t->waitforsocket('127.0.0.1:' . port(4317)) or
die 'No otel collector open socket';
$t->try_run('no OTel module')->plan(56);
###############################################################################
#do requests
(undef, my $t_off_resp) = http3_get('/trace-off');
#batch0 (10 requests)
my ($tp_headers, $tp_resp) = http3_get('/trace-on', trace_headers => 1);
my ($t_headers, $t_resp) = http3_get('/trace-on');
(my $t_headers_ignore, undef) = http3_get('/context-ignore');
(my $tp_headers_ignore, undef) = http3_get('/context-ignore',
trace_headers => 1);
(my $t_headers_extract, undef) = http3_get('/context-extract');
(my $tp_headers_extract, undef) = http3_get('/context-extract',
trace_headers => 1);
(my $t_headers_inject, undef) = http3_get('/context-inject');
(my $tp_headers_inject, undef) = http3_get('/context-inject',
trace_headers => 1);
(my $t_headers_propagate, undef) = http3_get('/context-propagate');
(my $tp_headers_propagate, undef) =
http3_get('/context-propagate', trace_headers => 1);
#batch1 (5 reqeusts)
http3_get('/trace-on') for (1..5);
#waiting batch1 is sent to collector for 1s
select undef, undef, undef, 1;
my @batches = split /\n/, $t->read_file('otel.json');
my $batch_json = JSON::PP::decode_json($batches[0]);
my $spans = $$batch_json{"resourceSpans"}[0]{"scopeSpans"}[0]{"spans"};
#validate responses
like($tp_resp, qr/TRACE-ON/, 'http request1 - trace on');
like($t_resp, qr/TRACE-ON/, 'http request2 - trace on');
like($t_off_resp, qr/TRACE-OFF/, 'http request - trace off');
#validate amount of batches
is(scalar @batches, 2, 'amount of batches - trace on');
#validate batch size
is(scalar @{$spans}, 10, 'batch0 size - trace on');
is(scalar @{${JSON::PP::decode_json($batches[1])}{"resourceSpans"}[0]
{"scopeSpans"}[0]{"spans"}}, 5, 'batch1 size - trace on');
#validate general attributes
is(get_attr("service.name", "stringValue",
$$batch_json{resourceSpans}[0]{resource}),
'test_server', 'service.name - trace on');
is($$spans[0]{name}, 'default_location', 'span.name - trace on');
#validate metrics
is(get_attr("http.method", "stringValue", $$spans[0]), 'GET',
'http.method metric - trace on');
is(get_attr("http.target", "stringValue", $$spans[0]), '/trace-on',
'http.target metric - trace on');
is(get_attr("http.route", "stringValue", $$spans[0]), '/trace-on',
'http.route metric - trace on');
is(get_attr("http.scheme", "stringValue", $$spans[0]), 'https',
'http.scheme metric - trace on');
is(get_attr("http.flavor", "stringValue", $$spans[0]), '3.0',
'http.flavor metric - trace on');
is(get_attr("http.user_agent", "stringValue", $$spans[0]), 'nginx-tests',
'http.user_agent metric - trace on');
is(get_attr("http.request_content_length", "intValue", $$spans[0]), 0,
'http.request_content_length metric - trace on');
is(get_attr("http.response_content_length", "intValue", $$spans[0]), 8,
'http.response_content_length metric - trace on');
is(get_attr("http.status_code", "intValue", $$spans[0]), 200,
'http.status_code metric - trace on');
is(get_attr("net.host.name", "stringValue", $$spans[0]), 'localhost',
'net.host.name metric - trace on');
is(get_attr("net.host.port", "intValue", $$spans[0]), 8980,
'net.host.port metric - trace on');
is(get_attr("net.sock.peer.addr", "stringValue", $$spans[0]), '127.0.0.1',
'net.sock.peer.addr metric - trace on');
like(get_attr("net.sock.peer.port", "intValue", $$spans[0]), qr/\d+/,
'net.sock.peer.port metric - trace on');
#validate custom http metrics
is(${get_attr("http.request.header.completion", "arrayValue", $$spans[0])}
{values}[0]{stringValue}, 'OK',
'http.request.header.completion metric - trace on');
is(${get_attr("http.response.header.content.type", "arrayValue", $$spans[0])}
{values}[0]{stringValue}, 'text/plain',
'http.response.header.content.type metric - trace on');
is(get_attr("http.request", "stringValue", $$spans[0]),
'GET /trace-on HTTP/3.0', 'http.request metric - trace on');
#extract trace info
is($$spans[0]{parentSpanId}, 'b9c7c989f97918e1', 'traceparent - trace on');
is($$spans[0]{traceState}, 'congo=ucfJifl5GOE,rojo=00f067aa0ba902b7',
'tracestate - trace on');
is($$spans[1]{parentSpanId}, '', 'no traceparent - trace on');
is($$spans[1]{traceState}, undef, 'no tracestate - trace on');
#variables
is($tp_headers->{'x-otel-trace-id'}, $$spans[0]{traceId},
'$otel_trace_id variable - trace on');
is($tp_headers->{'x-otel-span-id'}, $$spans[0]{spanId},
'$otel_span_id variable - trace on');
is($tp_headers->{'x-otel-parent-id'}, $$spans[0]{parentSpanId},
'$otel_parent_id variable - trace on');
is($tp_headers->{'x-otel-parent-sampled'}, 1,
'$otel_parent_sampled variable - trace on');
is($t_headers->{'x-otel-parent-sampled'}, 0,
'$otel_parent_sampled variable - trace on (no traceparent header)');
#trace off
unlike($batches[0],
qr/\Q{"key":"http.target","value":{"stringValue":"\/trace-off"}}\E/,
'no metrics - trace off');
#trace context: ignore
is($t_headers_ignore->{'x-otel-traceparent'}, undef,
'no traceparent - trace context ignore (no trace headers)');
is($t_headers_ignore->{'x-otel-tracestate'}, undef,
'no tracestate - trace context ignore (no trace headers)');
is($tp_headers_ignore->{'x-otel-parent-id'}, undef,
'no parent span id - trace context ignore (trace headers)');
is($tp_headers_ignore->{'x-otel-traceparent'},
'00-0af7651916cd43dd8448eb211c80319c-b9c7c989f97918e1-01',
'traceparent - trace context ignore (trace headers)');
is($tp_headers_ignore->{'x-otel-tracestate'},
'congo=ucfJifl5GOE,rojo=00f067aa0ba902b7',
'tracestate - trace context ignore (trace headers)');
#trace context: extract
is($t_headers_extract->{'x-otel-traceparent'}, undef,
'no traceparent - trace context extract (no trace headers)');
is($t_headers_extract->{'x-otel-tracestate'}, undef,
'no tracestate - trace context extract (no trace headers)');
is($tp_headers_extract->{'x-otel-parent-id'}, 'b9c7c989f97918e1',
'parent span id - trace context extract (trace headers)');
is($tp_headers_extract->{'x-otel-traceparent'},
'00-0af7651916cd43dd8448eb211c80319c-b9c7c989f97918e1-01',
'traceparent - trace context extract (trace headers)');
is($tp_headers_extract->{'x-otel-tracestate'},
'congo=ucfJifl5GOE,rojo=00f067aa0ba902b7',
'tracestate - trace context extract (trace headers)');
#trace context: inject
isnt($t_headers_inject->{'x-otel-traceparent'}, undef,
'traceparent - trace context inject (no trace headers)');
is($t_headers_inject->{'x-otel-tracestate'}, undef,
'no tracestate - trace context inject (no trace headers)');
is($tp_headers_inject->{'x-otel-parent-id'}, undef,
'no parent span id - trace context inject (trace headers)');
is($tp_headers_inject->{'x-otel-traceparent'},
"00-$$spans[7]{traceId}-$$spans[7]{spanId}-01",
'traceparent - trace context inject (trace headers)');
is($tp_headers_inject->{'x-otel-tracestate'}, undef,
'no tracestate - trace context inject (trace headers)');
#trace context: propagate
is($t_headers_propagate->{'x-otel-traceparent'},
"00-$$spans[8]{traceId}-$$spans[8]{spanId}-01",
'traceparent - trace context propagate (no trace headers)');
is($t_headers_propagate->{'x-otel-tracestate'}, undef,
'no tracestate - trace context propagate (no trace headers)');
is($tp_headers_propagate->{'x-otel-parent-id'}, 'b9c7c989f97918e1',
'parent id - trace context propagate (trace headers)');
is($tp_headers_propagate->{'x-otel-traceparent'},
"00-0af7651916cd43dd8448eb211c80319c-$$spans[9]{spanId}-01",
'traceparent - trace context propagate (trace headers)');
is($tp_headers_propagate->{'x-otel-tracestate'},
'congo=ucfJifl5GOE,rojo=00f067aa0ba902b7',
'tracestate - trace context propagate (trace headers)');
$t->stop();
my $log = $t->read_file("error.log");
unlike($log, qr/OTel\/grpc: Error parsing metadata: error=invalid value/,
'log: no error parsing metadata');
unlike($log, qr/OTel export failure: No status received/,
'log: no export failure');
###############################################################################
sub http3_get {
my ($path, %extra) = @_;
my ($frames, $frame);
my $s = Test::Nginx::HTTP3->new();
my $sid = $extra{trace_headers}
? $s->new_stream({ headers => [
{ name => ':method', value => 'GET' },
{ name => ':scheme', value => 'http' },
{ name => ':path', value => $path },
{ name => ':authority', value => 'localhost' },
{ name => 'user-agent', value => 'nginx-tests' },
{ name => 'traceparent',
value => '00-0af7651916cd43dd8448eb211c80319c-' .
'b9c7c989f97918e1-01'
},
{ name => 'tracestate',
value => 'congo=ucfJifl5GOE,rojo=00f067aa0ba902b7'
}]})
: $s->new_stream({ path => $path });
$frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
($frame) = grep { $_->{type} eq "HEADERS" } @$frames;
my $headers = $frame->{headers};
($frame) = grep { $_->{type} eq "DATA" } @$frames;
my $data = $frame->{data};
return $headers, $data;
}
sub get_attr {
my($attr, $type, $obj) = @_;
my ($res) = grep { $$_{"key"} eq $attr } @{$$obj{"attributes"}};
return defined $res ? $res->{"value"}{$type} : undef;
}
###############################################################################