Hi everyone,
I performed all the steps to instrument a php application into Splunk O11y Saas and there is not data(spans).
Following the steps done below:
1. Installed the linux packages.
luizpolli@PCWIN11-LPOLLI:~$ dpkg -l|egrep make
ii automake 1:1.16.5-1.3 all Tool for generating GNU Standards-compliant Makefiles
ii make 4.3-4.1build1 amd64 utility for directing compilation
ii xxd 2:8.2.3995-1ubuntu2.21 amd64 tool to make (or reverse) a hex dump
luizpolli@PCWIN11-LPOLLI:~$ dpkg -l|egrep autoconf
ii autoconf 2.71-2 all automatic configure script builder
luizpolli@PCWIN11-LPOLLI:~$ dpkg -l|grep gcc
ii gcc 4:11.2.0-1ubuntu1 amd64 GNU C compiler
ii gcc-11 11.4.0-1ubuntu1~22.04 amd64 GNU C compiler
ii gcc-11-base:amd64 11.4.0-1ubuntu1~22.04 amd64 GCC, the GNU Compiler Collection (base package)
ii gcc-12-base:amd64 12.3.0-1ubuntu1~22.04 amd64 GCC, the GNU Compiler Collection (base package)
ii libgcc-11-dev:amd64 11.4.0-1ubuntu1~22.04 amd64 GCC support library (development files)
ii libgcc-s1:amd64 12.3.0-1ubuntu1~22.04 amd64 GCC support library
luizpolli@PCWIN11-LPOLLI:~$
2. Installed php extension using pecl and added the opentelemetry.so inside php.ini file.
3. Installed some extensions using composer.
php composer.phar install open-telemetry/exporter-otlp:^1.0.3
php composer.phar install php-http/guzzle7-adapter:^1.0luizpolli@PCWIN11-LPOLLI:~$ composer show
brick/math 0.12.1 Arbitrary-precision arithmetic library
composer/semver 3.4.3 Semver library that offers utilities, version constraint parsing and validation.
google/protobuf 4.29.1 proto library for PHP
guzzlehttp/guzzle 7.9.2 Guzzle is a PHP HTTP client library
guzzlehttp/promises 2.0.4 Guzzle promises library
guzzlehttp/psr7 2.7.0 PSR-7 message implementation that also provides common utility methods
nyholm/psr7 1.8.2 A fast PHP7 implementation of PSR-7
nyholm/psr7-server 1.1.0 Helper classes to handle PSR-7 server requests
open-telemetry/api 1.1.1 API for OpenTelemetry PHP.
open-telemetry/context 1.1.0 Context implementation for OpenTelemetry PHP.
open-telemetry/exporter-otlp 1.1.0 OTLP exporter for OpenTelemetry.
open-telemetry/gen-otlp-protobuf 1.2.1 PHP protobuf files for communication with OpenTelemetry OTLP collectors/servers.
open-telemetry/sdk 1.1.2 SDK for OpenTelemetry PHP.
open-telemetry/sem-conv 1.27.1 Semantic conventions for OpenTelemetry PHP.
php-http/discovery 1.20.0 Finds and installs PSR-7, PSR-17, PSR-18 and HTTPlug implementations
php-http/guzzle7-adapter 1.1.0 Guzzle 7 HTTP Adapter
php-http/httplug 2.4.1 HTTPlug, the HTTP client abstraction for PHP
php-http/promise 1.3.1 Promise used for asynchronous HTTP requests
psr/container 2.0.2 Common Container Interface (PHP FIG PSR-11)
psr/http-client 1.0.3 Common interface for HTTP clients
psr/http-factory 1.1.0 PSR-17: Common interfaces for PSR-7 HTTP message factories
psr/http-message 2.0 Common interface for HTTP messages
psr/log 3.0.2 Common interface for logging libraries
ralouphie/getallheaders 3.0.3 A polyfill for getallheaders.
ramsey/collection 2.0.0 A PHP library for representing and manipulating collections.
ramsey/uuid 4.7.6 A PHP library for generating and working with universally unique identifiers (UUIDs).
symfony/deprecation-contracts 3.5.1 A generic function and convention to trigger deprecation notices
symfony/http-client 6.4.16 Provides powerful methods to fetch HTTP resources synchronously or asynchronously
symfony/http-client-contracts 3.5.1 Generic abstractions related to HTTP clients
symfony/polyfill-mbstring 1.31.0 Symfony polyfill for the Mbstring extension
symfony/polyfill-php82 1.31.0 Symfony polyfill backporting some PHP 8.2+ features to lower PHP versions
symfony/service-contracts 3.5.1 Generic abstractions related to writing services
tbachert/spi 1.0.2 Service provider loading facility
luizpolli@PCWIN11-LPOLLI:~$
4. Set linux env variables and php.ini.
luizpolli@PCWIN11-LPOLLI:~$ env|grep OTEL
OTEL_EXPORTER_OTLP_TRACES_HEADERS=x-sf-token=uv8z-g77txiCZigBV1OZVg
OTEL_RESOURCE_ATTRIBUTES=deployment.environment=prod,service.version=1.0
OTEL_EXPORTER_OTLP_ENDPOINT=https://ingest.eu1.signalfx.com/trace/otlp
OTEL_SERVICE_NAME=shopping
OTEL_PHP_AUTOLOAD_ENABLED=true
luizpolli@PCWIN11-LPOLLI:~$ cat /etc/php/8.1/apache2/php.ini |grep OTEL
OTEL_RESOURCE_ATTRIBUTES="deployment.environment=prod,service.version=1.0"
OTEL_EXPORTER_OTLP_ENDPOINT="http://localhost:4318"
OTEL_SERVICE_NAME=shopping
OTEL_PHP_AUTOLOAD_ENABLED=true
luizpolli@PCWIN11-LPOLLI:~$
5. Restarted the application.
luizpolli@PCWIN11-LPOLLI:~$ sudo systemctl restart apache2
[sudo] password for luizpolli:
luizpolli@PCWIN11-LPOLLI:~$ sudo systemctl status apache2
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2024-12-10 17:32:43 CET; 3s ago
Docs: https://httpd.apache.org/docs/2.4/
Process: 53957 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
Main PID: 53961 (apache2)
Tasks: 6 (limit: 18994)
Memory: 13.8M
CGroup: /system.slice/apache2.service
├─53961 /usr/sbin/apache2 -k start
├─53962 /usr/sbin/apache2 -k start
├─53963 /usr/sbin/apache2 -k start
├─53964 /usr/sbin/apache2 -k start
├─53965 /usr/sbin/apache2 -k start
└─53966 /usr/sbin/apache2 -k start
Dec 10 17:32:43 PCWIN11-LPOLLI systemd[1]: Starting The Apache HTTP Server...
Dec 10 17:32:43 PCWIN11-LPOLLI systemd[1]: Started The Apache HTTP Server.
luizpolli@PCWIN11-LPOLLI:~$
6. Checking Splunk O11y SaaS apm page we cannot spans.
Any ideas on what is wrong or missing?
Nothing.
In metrics finder we can't see anything about the service.name.
As far as I know my PHP is using zero code instrumentation. I have generated a lot of traffic and nothing. I performed a purchase, items in a cart and etc. Nothing of these spans are being reflected into O11y Cloud.
I don't about splunk HEC. I'm just starting using Splunk O11y. I need to study more about the http event collector.
I pulled this from one of the public examples for manual instrumentation and it worked. I think the only line I modified was the "require" line. One more note, I used .htaccess to expose env variables.
require __DIR__ . '/vendor/autoload.php';
<?php
declare(strict_types=1);
namespace OpenTelemetry\Example;
require __DIR__ . '/vendor/autoload.php';
use OpenTelemetry\Contrib\Otlp\OtlpHttpTransportFactory;
use OpenTelemetry\Contrib\Otlp\SpanExporter;
use OpenTelemetry\SDK\Trace\SpanProcessor\SimpleSpanProcessor;
use OpenTelemetry\SDK\Trace\TracerProvider;
$transport = (new OtlpHttpTransportFactory())->create('http://localhost:4318/v1/traces', 'application/x-protobuf');
$exporter = new SpanExporter($transport);
echo 'Starting OTLP example';
$tracerProvider = new TracerProvider(
new SimpleSpanProcessor(
$exporter
)
);
$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
$root = $span = $tracer->spanBuilder('root')->startSpan();
$scope = $span->activate();
for ($i = 0; $i < 3; $i++) {
// start a span, register some events
$span = $tracer->spanBuilder('loop-' . $i)->startSpan();
$span->setAttribute('remote_ip', '1.2.3.4')
->setAttribute('country', 'USA');
$span->addEvent('found_login' . $i, [
'id' => $i,
'username' => 'otuser' . $i,
]);
$span->addEvent('generated_session', [
'id' => md5((string) microtime(true)),
]);
$span->end();
}
$root->end();
$scope->detach();
echo PHP_EOL . 'OTLP example complete! ';
echo PHP_EOL;
$tracerProvider->shutdown();
?>
Hi bishida,
The token has been rotated.
As a matter fact i tried to setup directly, but it was configured with otel collector before with the same result on env variables. Image below.
The idea is to configure locally running on an otel collector instance.
As mentioned before, even locally at otel collector or directly to o11y cloud is not working.
