Add Go 1.21 support

Signed-off-by: Kemal Akkoyun <[email protected]>

.github/workflows/go.yml

@@ -5,7 +5,7 @@ on:
   push:
     branches:
       - main
-      - 'release-*'
+      - "release-*"
 
 # Minimal permissions to be inherited by any job that don't declare it's own permissions
 permissions:
@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        go_version: ["1.18", "1.19", "1.20"]
+        go_version: ["1.17", "1.18", "1.19", "1.20", "1.21"]
 
     steps:
       - name: Checkout code

Makefile

@@ -21,7 +21,7 @@ test: deps common-test
 test-short: deps common-test-short
 
 .PHONY: generate-go-collector-test-files
-VERSIONS := 1.17 1.18 1.19 1.20
+VERSIONS := 1.17 1.18 1.19 1.20 1.21
 generate-go-collector-test-files:
 	for GO_VERSION in $(VERSIONS); do \
     	docker run --rm -v $(PWD):/workspace -w /workspace golang:$$GO_VERSION go run prometheus/gen_go_collector_metrics_set.go; \
@@ -31,4 +31,3 @@ generate-go-collector-test-files:
 .PHONY: fmt
 fmt: common-format
 	$(GOIMPORTS) -local github.com/prometheus/client_golang -w .
-

README.md

@@ -10,13 +10,13 @@ This is the [Go](http://golang.org) client library for
 instrumenting application code, and one for creating clients that talk to the
 Prometheus HTTP API.
 
-__This library requires Go1.18 or later.__
+**This library requires Go1.17 or later.**
 
 ## Important note about releases and stability
 
 This repository generally follows [Semantic
 Versioning](https://semver.org/). However, the API client in
-prometheus/client_golang/api/… is still considered experimental. Breaking
+`prometheus/client_golang/api/…` is still considered experimental. Breaking
 changes of the API client will _not_ trigger a new major release. The same is
 true for selected other new features explicitly marked as **EXPERIMENTAL** in
 CHANGELOG.md.

prometheus/collectors/go_collector_go121_test.go

@@ -0,0 +1,172 @@
+// Copyright 2022 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build go1.21 && !go1.22
+// +build go1.21,!go1.22
+
+package collectors
+
+func withAllMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_cgo_go_to_c_calls_calls_total",
+		"go_cpu_classes_gc_mark_assist_cpu_seconds_total",
+		"go_cpu_classes_gc_mark_dedicated_cpu_seconds_total",
+		"go_cpu_classes_gc_mark_idle_cpu_seconds_total",
+		"go_cpu_classes_gc_pause_cpu_seconds_total",
+		"go_cpu_classes_gc_total_cpu_seconds_total",
+		"go_cpu_classes_idle_cpu_seconds_total",
+		"go_cpu_classes_scavenge_assist_cpu_seconds_total",
+		"go_cpu_classes_scavenge_background_cpu_seconds_total",
+		"go_cpu_classes_scavenge_total_cpu_seconds_total",
+		"go_cpu_classes_total_cpu_seconds_total",
+		"go_cpu_classes_user_cpu_seconds_total",
+		"go_gc_cycles_automatic_gc_cycles_total",
+		"go_gc_cycles_forced_gc_cycles_total",
+		"go_gc_cycles_total_gc_cycles_total",
+		"go_gc_gogc_percent",
+		"go_gc_gomemlimit_bytes",
+		"go_gc_heap_allocs_by_size_bytes",
+		"go_gc_heap_allocs_bytes_total",
+		"go_gc_heap_allocs_objects_total",
+		"go_gc_heap_frees_by_size_bytes",
+		"go_gc_heap_frees_bytes_total",
+		"go_gc_heap_frees_objects_total",
+		"go_gc_heap_goal_bytes",
+		"go_gc_heap_live_bytes",
+		"go_gc_heap_objects_objects",
+		"go_gc_heap_tiny_allocs_objects_total",
+		"go_gc_limiter_last_enabled_gc_cycle",
+		"go_gc_pauses_seconds",
+		"go_gc_scan_globals_bytes",
+		"go_gc_scan_heap_bytes",
+		"go_gc_scan_stack_bytes",
+		"go_gc_scan_total_bytes",
+		"go_gc_stack_starting_size_bytes",
+		"go_godebug_non_default_behavior_execerrdot_events_total",
+		"go_godebug_non_default_behavior_gocachehash_events_total",
+		"go_godebug_non_default_behavior_gocachetest_events_total",
+		"go_godebug_non_default_behavior_gocacheverify_events_total",
+		"go_godebug_non_default_behavior_http2client_events_total",
+		"go_godebug_non_default_behavior_http2server_events_total",
+		"go_godebug_non_default_behavior_installgoroot_events_total",
+		"go_godebug_non_default_behavior_jstmpllitinterp_events_total",
+		"go_godebug_non_default_behavior_multipartmaxheaders_events_total",
+		"go_godebug_non_default_behavior_multipartmaxparts_events_total",
+		"go_godebug_non_default_behavior_multipathtcp_events_total",
+		"go_godebug_non_default_behavior_panicnil_events_total",
+		"go_godebug_non_default_behavior_randautoseed_events_total",
+		"go_godebug_non_default_behavior_tarinsecurepath_events_total",
+		"go_godebug_non_default_behavior_x509sha1_events_total",
+		"go_godebug_non_default_behavior_x509usefallbackroots_events_total",
+		"go_godebug_non_default_behavior_zipinsecurepath_events_total",
+		"go_memory_classes_heap_free_bytes",
+		"go_memory_classes_heap_objects_bytes",
+		"go_memory_classes_heap_released_bytes",
+		"go_memory_classes_heap_stacks_bytes",
+		"go_memory_classes_heap_unused_bytes",
+		"go_memory_classes_metadata_mcache_free_bytes",
+		"go_memory_classes_metadata_mcache_inuse_bytes",
+		"go_memory_classes_metadata_mspan_free_bytes",
+		"go_memory_classes_metadata_mspan_inuse_bytes",
+		"go_memory_classes_metadata_other_bytes",
+		"go_memory_classes_os_stacks_bytes",
+		"go_memory_classes_other_bytes",
+		"go_memory_classes_profiling_buckets_bytes",
+		"go_memory_classes_total_bytes",
+		"go_sched_gomaxprocs_threads",
+		"go_sched_goroutines_goroutines",
+		"go_sched_latencies_seconds",
+		"go_sync_mutex_wait_total_seconds_total",
+	})
+}
+
+func withGCMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_gc_cycles_automatic_gc_cycles_total",
+		"go_gc_cycles_forced_gc_cycles_total",
+		"go_gc_cycles_total_gc_cycles_total",
+		"go_gc_gogc_percent",
+		"go_gc_gomemlimit_bytes",
+		"go_gc_heap_allocs_by_size_bytes",
+		"go_gc_heap_allocs_bytes_total",
+		"go_gc_heap_allocs_objects_total",
+		"go_gc_heap_frees_by_size_bytes",
+		"go_gc_heap_frees_bytes_total",
+		"go_gc_heap_frees_objects_total",
+		"go_gc_heap_goal_bytes",
+		"go_gc_heap_live_bytes",
+		"go_gc_heap_objects_objects",
+		"go_gc_heap_tiny_allocs_objects_total",
+		"go_gc_limiter_last_enabled_gc_cycle",
+		"go_gc_pauses_seconds",
+		"go_gc_scan_globals_bytes",
+		"go_gc_scan_heap_bytes",
+		"go_gc_scan_stack_bytes",
+		"go_gc_scan_total_bytes",
+		"go_gc_stack_starting_size_bytes",
+	})
+}
+
+func withMemoryMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_memory_classes_heap_free_bytes",
+		"go_memory_classes_heap_objects_bytes",
+		"go_memory_classes_heap_released_bytes",
+		"go_memory_classes_heap_stacks_bytes",
+		"go_memory_classes_heap_unused_bytes",
+		"go_memory_classes_metadata_mcache_free_bytes",
+		"go_memory_classes_metadata_mcache_inuse_bytes",
+		"go_memory_classes_metadata_mspan_free_bytes",
+		"go_memory_classes_metadata_mspan_inuse_bytes",
+		"go_memory_classes_metadata_other_bytes",
+		"go_memory_classes_os_stacks_bytes",
+		"go_memory_classes_other_bytes",
+		"go_memory_classes_profiling_buckets_bytes",
+		"go_memory_classes_total_bytes",
+	})
+}
+
+func withSchedulerMetrics() []string {
+	return []string{
+		"go_gc_duration_seconds",
+		"go_goroutines",
+		"go_info",
+		"go_memstats_last_gc_time_seconds",
+		"go_sched_gomaxprocs_threads",
+		"go_sched_goroutines_goroutines",
+		"go_sched_latencies_seconds",
+		"go_threads",
+	}
+}
+
+func withDebugMetrics() []string {
+	return []string{
+		"go_godebug_non_default_behavior_execerrdot_events_total",
+		"go_godebug_non_default_behavior_gocachehash_events_total",
+		"go_godebug_non_default_behavior_gocachetest_events_total",
+		"go_godebug_non_default_behavior_gocacheverify_events_total",
+		"go_godebug_non_default_behavior_http2client_events_total",
+		"go_godebug_non_default_behavior_http2server_events_total",
+		"go_godebug_non_default_behavior_installgoroot_events_total",
+		"go_godebug_non_default_behavior_jstmpllitinterp_events_total",
+		"go_godebug_non_default_behavior_multipartmaxheaders_events_total",
+		"go_godebug_non_default_behavior_multipartmaxparts_events_total",
+		"go_godebug_non_default_behavior_multipathtcp_events_total",
+		"go_godebug_non_default_behavior_panicnil_events_total",
+		"go_godebug_non_default_behavior_randautoseed_events_total",
+		"go_godebug_non_default_behavior_tarinsecurepath_events_total",
+		"go_godebug_non_default_behavior_x509sha1_events_total",
+		"go_godebug_non_default_behavior_x509usefallbackroots_events_total",
+		"go_godebug_non_default_behavior_zipinsecurepath_events_total",
+	}
+}