The following is a specification for OpenTelemetry Wildcard Name Matching grammar that I propose to add to the generated metadata packages from mdatagen. This grammar will facilitate the use of wildcards in metric and resource attribute configurations to enabling/disabling metrics/resource attributes in a more concise way, allowing a configuration like:
metrics:
Unit tests for the scraping functionality were added to process_scraper_test.go. The tests pass in mock process handles and expect the system.processes.count and system.processes.created metrics to have the correct values. It also expects the correct values to be produced with different combinations of the two metrics enabled/disabled.
I added compatibility tests between the process and processes scrapers, expecting the system.processes.* metrics produced by each to be the same.
| package main | |
| /* | |
| #cgo LDFLAGS: -Wl,--unresolved-symbols=ignore-in-object-files | |
| #cgo CFLAGS: -DNVML_NO_UNVERSIONED_FUNC_DEFS=1 | |
| #include "nvml.h" | |
| #include <stdlib.h> | |
| */ | |
| import "C" |
| exporters: | |
| googlecloud: | |
| metric: | |
| instrumentation_library_labels: false | |
| prefix: "" | |
| resource_filters: [] | |
| service_resource_labels: false | |
| skip_create_descriptor: true | |
| retry_on_failure: | |
| enabled: false |
| package main | |
| import ( | |
| "bufio" | |
| "context" | |
| "flag" | |
| "io" | |
| "log" | |
| "os" |
| braydon@pop-os:~/Work/fluent-bit/build/bin$ valgrind --leak-check=full --log-file=valgrind.log ./fluent-bit --conf config.conf | |
| Fluent Bit v2.1.9 | |
| * Copyright (C) 2015-2022 The Fluent Bit Authors | |
| * Fluent Bit is a CNCF sub-project under the umbrella of Fluentd | |
| * https://fluentbit.io | |
| [2023/08/26 20:19:44] [ info] Configuration: | |
| [2023/08/26 20:19:44] [ info] flush time | 1.000000 seconds | |
| [2023/08/26 20:19:44] [ info] grace | 5 seconds | |
| [2023/08/26 20:19:44] [ info] daemon | 0 |
| braydon@pop-os:~/Work/fluent-bit/build/bin$ cat config.conf | |
| [SERVICE] | |
| Log_Level debug | |
| [INPUT] | |
| name fluentbit_metrics | |
| tag internal_metrics | |
| scrape_interval 2 | |
| [INPUT] |
| #!/usr/bin/env bash | |
| set -e | |
| if [[ -z "$DATA_DIR" ]]; then | |
| echo "please set a DATA_DIR environment variable to specify where generated log data and buffers should go." | |
| exit 0 | |
| fi | |
| # Usage: |
| { | |
| "resourceMetrics": [ | |
| { | |
| "resource": {}, | |
| "scopeMetrics": [ | |
| { | |
| "scope": { | |
| "name": "otelcol/hostmetricsreceiver/disk", | |
| "version": "latest" | |
| }, |