diff options
Diffstat (limited to 'vendor/github.com/prometheus')
18 files changed, 1077 insertions, 9 deletions
diff --git a/vendor/github.com/prometheus/otlptranslator/.gitignore b/vendor/github.com/prometheus/otlptranslator/.gitignore new file mode 100644 index 000000000..6f72f8926 --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/.gitignore @@ -0,0 +1,25 @@ +# If you prefer the allow list template instead of the deny list, see community template: +# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore +# +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, built with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + +# Dependency directories (remove the comment below to include it) +# vendor/ + +# Go workspace file +go.work +go.work.sum + +# env file +.env diff --git a/vendor/github.com/prometheus/otlptranslator/.golangci.yml b/vendor/github.com/prometheus/otlptranslator/.golangci.yml new file mode 100644 index 000000000..ed5f43f1a --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/.golangci.yml @@ -0,0 +1,106 @@ +formatters: + enable: + - gci + - gofumpt + settings: + gci: + sections: + - standard + - default + - prefix(github.com/prometheus/otlptranslator) + gofumpt: + extra-rules: true +issues: + max-issues-per-linter: 0 + max-same-issues: 0 +linters: + # Keep this list sorted alphabetically + enable: + - depguard + - errorlint + - exptostd + - gocritic + - godot + - loggercheck + - misspell + - nilnesserr + # TODO: Enable once https://github.com/golangci/golangci-lint/issues/3228 is fixed. + # - nolintlint + - perfsprint + - predeclared + - revive + - sloglint + - testifylint + - unconvert + - unused + - usestdlibvars + - whitespace + settings: + depguard: + rules: + main: + deny: + - pkg: sync/atomic + desc: Use go.uber.org/atomic instead of sync/atomic + - pkg: github.com/stretchr/testify/assert + desc: Use github.com/stretchr/testify/require instead of github.com/stretchr/testify/assert + - pkg: io/ioutil + desc: Use corresponding 'os' or 'io' functions instead. + - pkg: regexp + desc: Use github.com/grafana/regexp instead of regexp + - pkg: github.com/pkg/errors + desc: Use 'errors' or 'fmt' instead of github.com/pkg/errors + - pkg: golang.org/x/exp/slices + desc: Use 'slices' instead. + perfsprint: + # Optimizes `fmt.Errorf`. + errorf: true + revive: + # By default, revive will enable only the linting rules that are named in the configuration file. + # So, it's needed to explicitly enable all required rules here. + rules: + # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md + - name: blank-imports + - name: comment-spacings + - name: context-as-argument + arguments: + # Allow functions with test or bench signatures. + - allowTypesBefore: '*testing.T,testing.TB' + - name: context-keys-type + - name: dot-imports + - name: early-return + arguments: + - preserveScope + # A lot of false positives: incorrectly identifies channel draining as "empty code block". + # See https://github.com/mgechev/revive/issues/386 + - name: empty-block + disabled: true + - name: error-naming + - name: error-return + - name: error-strings + - name: errorf + - name: exported + - name: increment-decrement + - name: indent-error-flow + arguments: + - preserveScope + - name: range + - name: receiver-naming + - name: redefines-builtin-id + - name: superfluous-else + arguments: + - preserveScope + - name: time-naming + - name: unexported-return + - name: unreachable-code + - name: unused-parameter + - name: var-declaration + - name: var-naming + testifylint: + disable: + - float-compare + - go-require + enable-all: true +run: + timeout: 15m +version: "2" diff --git a/vendor/github.com/prometheus/otlptranslator/CODE_OF_CONDUCT.md b/vendor/github.com/prometheus/otlptranslator/CODE_OF_CONDUCT.md new file mode 100644 index 000000000..d325872bd --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/CODE_OF_CONDUCT.md @@ -0,0 +1,3 @@ +# Prometheus Community Code of Conduct + +Prometheus follows the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/main/code-of-conduct.md). diff --git a/vendor/github.com/prometheus/otlptranslator/LICENSE b/vendor/github.com/prometheus/otlptranslator/LICENSE new file mode 100644 index 000000000..261eeb9e9 --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + 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. diff --git a/vendor/github.com/prometheus/otlptranslator/MAINTAINERS.md b/vendor/github.com/prometheus/otlptranslator/MAINTAINERS.md new file mode 100644 index 000000000..af0fc4df7 --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/MAINTAINERS.md @@ -0,0 +1,4 @@ +* Arthur Silva Sens (arthursens2005@gmail.com / @ArthurSens) +* Arve Knudsen (arve.knudsen@gmail.com / @aknuds1) +* Jesús Vázquez (jesus.vazquez@grafana.com / @jesusvazquez) +* Owen Williams (owen.williams@grafana.com / @ywwg)
\ No newline at end of file diff --git a/vendor/github.com/prometheus/otlptranslator/README.md b/vendor/github.com/prometheus/otlptranslator/README.md new file mode 100644 index 000000000..3b31a448e --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/README.md @@ -0,0 +1,2 @@ +# otlp-prometheus-translator +Library providing API to convert OTLP metric and attribute names to respectively Prometheus metric and label names. diff --git a/vendor/github.com/prometheus/otlptranslator/SECURITY.md b/vendor/github.com/prometheus/otlptranslator/SECURITY.md new file mode 100644 index 000000000..fed02d85c --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/SECURITY.md @@ -0,0 +1,6 @@ +# Reporting a security issue + +The Prometheus security policy, including how to report vulnerabilities, can be +found here: + +<https://prometheus.io/docs/operating/security/> diff --git a/vendor/github.com/prometheus/otlptranslator/constants.go b/vendor/github.com/prometheus/otlptranslator/constants.go new file mode 100644 index 000000000..0ea3b1c4c --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/constants.go @@ -0,0 +1,38 @@ +// Copyright 2025 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. +package otlptranslator + +const ( + // ExemplarTraceIDKey is the key used to store the trace ID in Prometheus + // exemplars: + // https://github.com/open-telemetry/opentelemetry-specification/blob/e6eccba97ebaffbbfad6d4358408a2cead0ec2df/specification/compatibility/prometheus_and_openmetrics.md#exemplars + ExemplarTraceIDKey = "trace_id" + // ExemplarSpanIDKey is the key used to store the Span ID in Prometheus + // exemplars: + // https://github.com/open-telemetry/opentelemetry-specification/blob/e6eccba97ebaffbbfad6d4358408a2cead0ec2df/specification/compatibility/prometheus_and_openmetrics.md#exemplars + ExemplarSpanIDKey = "span_id" + // ScopeNameLabelKey is the name of the label key used to identify the name + // of the OpenTelemetry scope which produced the metric: + // https://github.com/open-telemetry/opentelemetry-specification/blob/e6eccba97ebaffbbfad6d4358408a2cead0ec2df/specification/compatibility/prometheus_and_openmetrics.md#instrumentation-scope + ScopeNameLabelKey = "otel_scope_name" + // ScopeVersionLabelKey is the name of the label key used to identify the + // version of the OpenTelemetry scope which produced the metric: + // https://github.com/open-telemetry/opentelemetry-specification/blob/e6eccba97ebaffbbfad6d4358408a2cead0ec2df/specification/compatibility/prometheus_and_openmetrics.md#instrumentation-scope + ScopeVersionLabelKey = "otel_scope_version" + // TargetInfoMetricName is the name of the metric used to preserve resource + // attributes in Prometheus format: + // https://github.com/open-telemetry/opentelemetry-specification/blob/e6eccba97ebaffbbfad6d4358408a2cead0ec2df/specification/compatibility/prometheus_and_openmetrics.md#resource-attributes-1 + // It originates from OpenMetrics: + // https://github.com/OpenObservability/OpenMetrics/blob/1386544931307dff279688f332890c31b6c5de36/specification/OpenMetrics.md#supporting-target-metadata-in-both-push-based-and-pull-based-systems + TargetInfoMetricName = "target_info" +) diff --git a/vendor/github.com/prometheus/otlptranslator/metric_namer.go b/vendor/github.com/prometheus/otlptranslator/metric_namer.go new file mode 100644 index 000000000..58d68ba98 --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/metric_namer.go @@ -0,0 +1,275 @@ +// Copyright 2025 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. +// Provenance-includes-location: https://github.com/prometheus/prometheus/blob/93e991ef7ed19cc997a9360c8016cac3767b8057/storage/remote/otlptranslator/prometheus/metric_name_builder.go +// Provenance-includes-license: Apache-2.0 +// Provenance-includes-copyright: Copyright The Prometheus Authors +// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/95e8f8fdc2a9dc87230406c9a3cf02be4fd68bea/pkg/translator/prometheus/normalize_name.go +// Provenance-includes-license: Apache-2.0 +// Provenance-includes-copyright: Copyright The OpenTelemetry Authors. + +package otlptranslator + +import ( + "slices" + "strings" + "unicode" + + "github.com/grafana/regexp" +) + +// The map to translate OTLP units to Prometheus units +// OTLP metrics use the c/s notation as specified at https://ucum.org/ucum.html +// (See also https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/semantic_conventions/README.md#instrument-units) +// Prometheus best practices for units: https://prometheus.io/docs/practices/naming/#base-units +// OpenMetrics specification for units: https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#units-and-base-units +var unitMap = map[string]string{ + // Time + "d": "days", + "h": "hours", + "min": "minutes", + "s": "seconds", + "ms": "milliseconds", + "us": "microseconds", + "ns": "nanoseconds", + + // Bytes + "By": "bytes", + "KiBy": "kibibytes", + "MiBy": "mebibytes", + "GiBy": "gibibytes", + "TiBy": "tibibytes", + "KBy": "kilobytes", + "MBy": "megabytes", + "GBy": "gigabytes", + "TBy": "terabytes", + + // SI + "m": "meters", + "V": "volts", + "A": "amperes", + "J": "joules", + "W": "watts", + "g": "grams", + + // Misc + "Cel": "celsius", + "Hz": "hertz", + "1": "", + "%": "percent", +} + +// The map that translates the "per" unit. +// Example: s => per second (singular). +var perUnitMap = map[string]string{ + "s": "second", + "m": "minute", + "h": "hour", + "d": "day", + "w": "week", + "mo": "month", + "y": "year", +} + +// MetricNamer is a helper struct to build metric names. +type MetricNamer struct { + Namespace string + WithMetricSuffixes bool + UTF8Allowed bool +} + +// Metric is a helper struct that holds information about a metric. +type Metric struct { + Name string + Unit string + Type MetricType +} + +// Build builds a metric name for the specified metric. +// +// If UTF8Allowed is true, the metric name is returned as is, only with the addition of type/unit suffixes and namespace preffix if required. +// Otherwise the metric name is normalized to be Prometheus-compliant. +// See rules at https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels, +// https://prometheus.io/docs/practices/naming/#metric-and-label-naming +func (mn *MetricNamer) Build(metric Metric) string { + if mn.UTF8Allowed { + return mn.buildMetricName(metric.Name, metric.Unit, metric.Type) + } + return mn.buildCompliantMetricName(metric.Name, metric.Unit, metric.Type) +} + +func (mn *MetricNamer) buildCompliantMetricName(name, unit string, metricType MetricType) string { + // Full normalization following standard Prometheus naming conventions + if mn.WithMetricSuffixes { + return normalizeName(name, unit, metricType, mn.Namespace) + } + + // Simple case (no full normalization, no units, etc.). + metricName := strings.Join(strings.FieldsFunc(name, func(r rune) bool { + return invalidMetricCharRE.MatchString(string(r)) + }), "_") + + // Namespace? + if mn.Namespace != "" { + namespace := strings.Join(strings.FieldsFunc(mn.Namespace, func(r rune) bool { + return invalidMetricCharRE.MatchString(string(r)) + }), "_") + return namespace + "_" + metricName + } + + // Metric name starts with a digit? Prefix it with an underscore. + if metricName != "" && unicode.IsDigit(rune(metricName[0])) { + metricName = "_" + metricName + } + + return metricName +} + +var ( + // Regexp for metric name characters that should be replaced with _. + invalidMetricCharRE = regexp.MustCompile(`[^a-zA-Z0-9:_]`) + multipleUnderscoresRE = regexp.MustCompile(`__+`) +) + +// isValidCompliantMetricChar checks if a rune is a valid metric name character (a-z, A-Z, 0-9, :). +func isValidCompliantMetricChar(r rune) bool { + return (r >= 'a' && r <= 'z') || + (r >= 'A' && r <= 'Z') || + (r >= '0' && r <= '9') || + r == ':' +} + +// replaceInvalidMetricChar replaces invalid metric name characters with underscore. +func replaceInvalidMetricChar(r rune) rune { + if isValidCompliantMetricChar(r) { + return r + } + return '_' +} + +// Build a normalized name for the specified metric. +func normalizeName(name, unit string, metricType MetricType, namespace string) string { + // Split metric name into "tokens" (of supported metric name runes). + // Note that this has the side effect of replacing multiple consecutive underscores with a single underscore. + // This is part of the OTel to Prometheus specification: https://github.com/open-telemetry/opentelemetry-specification/blob/v1.38.0/specification/compatibility/prometheus_and_openmetrics.md#otlp-metric-points-to-prometheus. + nameTokens := strings.FieldsFunc( + name, + func(r rune) bool { return !isValidCompliantMetricChar(r) }, + ) + + mainUnitSuffix, perUnitSuffix := buildUnitSuffixes(unit) + nameTokens = addUnitTokens(nameTokens, cleanUpUnit(mainUnitSuffix), cleanUpUnit(perUnitSuffix)) + + // Append _total for Counters + if metricType == MetricTypeMonotonicCounter { + nameTokens = append(removeItem(nameTokens, "total"), "total") + } + + // Append _ratio for metrics with unit "1" + // Some OTel receivers improperly use unit "1" for counters of objects + // See https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aissue+some+metric+units+don%27t+follow+otel+semantic+conventions + // Until these issues have been fixed, we're appending `_ratio` for gauges ONLY + // Theoretically, counters could be ratios as well, but it's absurd (for mathematical reasons) + if unit == "1" && metricType == MetricTypeGauge { + nameTokens = append(removeItem(nameTokens, "ratio"), "ratio") + } + + // Namespace? + if namespace != "" { + nameTokens = append([]string{namespace}, nameTokens...) + } + + // Build the string from the tokens, separated with underscores + normalizedName := strings.Join(nameTokens, "_") + + // Metric name cannot start with a digit, so prefix it with "_" in this case + if normalizedName != "" && unicode.IsDigit(rune(normalizedName[0])) { + normalizedName = "_" + normalizedName + } + + return normalizedName +} + +// addUnitTokens will add the suffixes to the nameTokens if they are not already present. +// It will also remove trailing underscores from the main suffix to avoid double underscores +// when joining the tokens. +// +// If the 'per' unit ends with underscore, the underscore will be removed. If the per unit is just +// 'per_', it will be entirely removed. +func addUnitTokens(nameTokens []string, mainUnitSuffix, perUnitSuffix string) []string { + if slices.Contains(nameTokens, mainUnitSuffix) { + mainUnitSuffix = "" + } + + if perUnitSuffix == "per_" { + perUnitSuffix = "" + } else { + perUnitSuffix = strings.TrimSuffix(perUnitSuffix, "_") + if slices.Contains(nameTokens, perUnitSuffix) { + perUnitSuffix = "" + } + } + + if perUnitSuffix != "" { + mainUnitSuffix = strings.TrimSuffix(mainUnitSuffix, "_") + } + + if mainUnitSuffix != "" { + nameTokens = append(nameTokens, mainUnitSuffix) + } + if perUnitSuffix != "" { + nameTokens = append(nameTokens, perUnitSuffix) + } + return nameTokens +} + +// Remove the specified value from the slice. +func removeItem(slice []string, value string) []string { + newSlice := make([]string, 0, len(slice)) + for _, sliceEntry := range slice { + if sliceEntry != value { + newSlice = append(newSlice, sliceEntry) + } + } + return newSlice +} + +func (mn *MetricNamer) buildMetricName(name, unit string, metricType MetricType) string { + if mn.Namespace != "" { + name = mn.Namespace + "_" + name + } + + if mn.WithMetricSuffixes { + mainUnitSuffix, perUnitSuffix := buildUnitSuffixes(unit) + if mainUnitSuffix != "" { + name = name + "_" + mainUnitSuffix + } + if perUnitSuffix != "" { + name = name + "_" + perUnitSuffix + } + + // Append _total for Counters + if metricType == MetricTypeMonotonicCounter { + name += "_total" + } + + // Append _ratio for metrics with unit "1" + // Some OTel receivers improperly use unit "1" for counters of objects + // See https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aissue+some+metric+units+don%27t+follow+otel+semantic+conventions + // Until these issues have been fixed, we're appending `_ratio` for gauges ONLY + // Theoretically, counters could be ratios as well, but it's absurd (for mathematical reasons) + if unit == "1" && metricType == MetricTypeGauge { + name += "_ratio" + } + } + return name +} diff --git a/vendor/github.com/prometheus/otlptranslator/metric_type.go b/vendor/github.com/prometheus/otlptranslator/metric_type.go new file mode 100644 index 000000000..30464cfea --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/metric_type.go @@ -0,0 +1,36 @@ +// Copyright 2025 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 + +package otlptranslator + +// MetricType is a representation of metric types from OpenTelemetry. +// Different types of Sums were introduced based on their metric temporalities. +// For more details, see: +// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/data-model.md#sums +type MetricType int + +const ( + // MetricTypeUnknown represents an unknown metric type. + MetricTypeUnknown = iota + // MetricTypeNonMonotonicCounter represents a counter that is not monotonically increasing, also known as delta counter. + MetricTypeNonMonotonicCounter + // MetricTypeMonotonicCounter represents a counter that is monotonically increasing, also known as cumulative counter. + MetricTypeMonotonicCounter + // MetricTypeGauge represents a gauge metric. + MetricTypeGauge + // MetricTypeHistogram represents a histogram metric. + MetricTypeHistogram + // MetricTypeExponentialHistogram represents an exponential histogram metric. + MetricTypeExponentialHistogram + // MetricTypeSummary represents a summary metric. + MetricTypeSummary +) diff --git a/vendor/github.com/prometheus/otlptranslator/normalize_label.go b/vendor/github.com/prometheus/otlptranslator/normalize_label.go new file mode 100644 index 000000000..aa771f784 --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/normalize_label.go @@ -0,0 +1,57 @@ +// Copyright 2025 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. +// Provenance-includes-location: https://github.com/prometheus/prometheus/blob/93e991ef7ed19cc997a9360c8016cac3767b8057/storage/remote/otlptranslator/prometheus/normalize_label.go +// Provenance-includes-license: Apache-2.0 +// Provenance-includes-copyright: Copyright The Prometheus Authors +// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/95e8f8fdc2a9dc87230406c9a3cf02be4fd68bea/pkg/translator/prometheus/normalize_label.go +// Provenance-includes-license: Apache-2.0 +// Provenance-includes-copyright: Copyright The OpenTelemetry Authors. + +package otlptranslator + +import ( + "strings" + "unicode" +) + +// LabelNamer is a helper struct to build label names. +type LabelNamer struct { + UTF8Allowed bool +} + +// Build normalizes the specified label to follow Prometheus label names standard. +// +// See rules at https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels. +// +// Labels that start with non-letter rune will be prefixed with "key_". +// An exception is made for double-underscores which are allowed. +// +// If UTF8Allowed is true, the label is returned as is. This option is provided just to +// keep a consistent interface with the MetricNamer. +func (ln *LabelNamer) Build(label string) string { + // Trivial case. + if len(label) == 0 || ln.UTF8Allowed { + return label + } + + label = sanitizeLabelName(label) + + // If label starts with a number, prepend with "key_". + if unicode.IsDigit(rune(label[0])) { + label = "key_" + label + } else if strings.HasPrefix(label, "_") && !strings.HasPrefix(label, "__") { + label = "key" + label + } + + return label +} diff --git a/vendor/github.com/prometheus/otlptranslator/strconv.go b/vendor/github.com/prometheus/otlptranslator/strconv.go new file mode 100644 index 000000000..81d534e8d --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/strconv.go @@ -0,0 +1,42 @@ +// Copyright 2025 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. +// Provenance-includes-location: https://github.com/prometheus/prometheus/blob/93e991ef7ed19cc997a9360c8016cac3767b8057/storage/remote/otlptranslator/prometheus/strconv.go.go +// Provenance-includes-license: Apache-2.0 +// Provenance-includes-copyright: Copyright The Prometheus Authors +// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/95e8f8fdc2a9dc87230406c9a3cf02be4fd68bea/pkg/translator/prometheus/normalize_name_test.go +// Provenance-includes-license: Apache-2.0 +// Provenance-includes-copyright: Copyright The OpenTelemetry Authors. + +package otlptranslator + +import ( + "strings" +) + +// sanitizeLabelName replaces any characters not valid according to the +// classical Prometheus label naming scheme with an underscore. +// Note: this does not handle all Prometheus label name restrictions (such as +// not starting with a digit 0-9), and hence should only be used if the label +// name is prefixed with a known valid string. +func sanitizeLabelName(name string) string { + var b strings.Builder + b.Grow(len(name)) + for _, r := range name { + if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') || (r >= '0' && r <= '9') { + b.WriteRune(r) + } else { + b.WriteRune('_') + } + } + return b.String() +} diff --git a/vendor/github.com/prometheus/otlptranslator/unit_namer.go b/vendor/github.com/prometheus/otlptranslator/unit_namer.go new file mode 100644 index 000000000..4bbf93ef9 --- /dev/null +++ b/vendor/github.com/prometheus/otlptranslator/unit_namer.go @@ -0,0 +1,110 @@ +// Copyright 2025 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 + +package otlptranslator + +import "strings" + +// UnitNamer is a helper for building compliant unit names. +type UnitNamer struct { + UTF8Allowed bool +} + +// Build builds a unit name for the specified unit string. +// It processes the unit by splitting it into main and per components, +// applying appropriate unit mappings, and cleaning up invalid characters +// when the whole UTF-8 character set is not allowed. +func (un *UnitNamer) Build(unit string) string { + mainUnit, perUnit := buildUnitSuffixes(unit) + if !un.UTF8Allowed { + mainUnit, perUnit = cleanUpUnit(mainUnit), cleanUpUnit(perUnit) + } + + var u string + switch { + case mainUnit != "" && perUnit != "": + u = mainUnit + "_" + perUnit + case mainUnit != "": + u = mainUnit + default: + u = perUnit + } + + // Clean up leading and trailing underscores + if len(u) > 0 && u[0:1] == "_" { + u = u[1:] + } + if len(u) > 0 && u[len(u)-1:] == "_" { + u = u[:len(u)-1] + } + + return u +} + +// Retrieve the Prometheus "basic" unit corresponding to the specified "basic" unit. +// Returns the specified unit if not found in unitMap. +func unitMapGetOrDefault(unit string) string { + if promUnit, ok := unitMap[unit]; ok { + return promUnit + } + return unit +} + +// Retrieve the Prometheus "per" unit corresponding to the specified "per" unit. +// Returns the specified unit if not found in perUnitMap. +func perUnitMapGetOrDefault(perUnit string) string { + if promPerUnit, ok := perUnitMap[perUnit]; ok { + return promPerUnit + } + return perUnit +} + +// buildUnitSuffixes builds the main and per unit suffixes for the specified unit +// but doesn't do any special character transformation to accommodate Prometheus naming conventions. +// Removing trailing underscores or appending suffixes is done in the caller. +func buildUnitSuffixes(unit string) (mainUnitSuffix, perUnitSuffix string) { + // Split unit at the '/' if any + unitTokens := strings.SplitN(unit, "/", 2) + + if len(unitTokens) > 0 { + // Main unit + // Update if not blank and doesn't contain '{}' + mainUnitOTel := strings.TrimSpace(unitTokens[0]) + if mainUnitOTel != "" && !strings.ContainsAny(mainUnitOTel, "{}") { + mainUnitSuffix = unitMapGetOrDefault(mainUnitOTel) + } + + // Per unit + // Update if not blank and doesn't contain '{}' + if len(unitTokens) > 1 && unitTokens[1] != "" { + perUnitOTel := strings.TrimSpace(unitTokens[1]) + if perUnitOTel != "" && !strings.ContainsAny(perUnitOTel, "{}") { + perUnitSuffix = perUnitMapGetOrDefault(perUnitOTel) + } + if perUnitSuffix != "" { + perUnitSuffix = "per_" + perUnitSuffix + } + } + } + + return mainUnitSuffix, perUnitSuffix +} + +// cleanUpUnit cleans up unit so it matches model.LabelNameRE. +func cleanUpUnit(unit string) string { + // Multiple consecutive underscores are replaced with a single underscore. + // This is part of the OTel to Prometheus specification: https://github.com/open-telemetry/opentelemetry-specification/blob/v1.38.0/specification/compatibility/prometheus_and_openmetrics.md#otlp-metric-points-to-prometheus. + return strings.TrimPrefix(multipleUnderscoresRE.ReplaceAllString( + strings.Map(replaceInvalidMetricChar, unit), + "_", + ), "_") +} diff --git a/vendor/github.com/prometheus/procfs/Makefile.common b/vendor/github.com/prometheus/procfs/Makefile.common index 0ed55c2ba..4de21512f 100644 --- a/vendor/github.com/prometheus/procfs/Makefile.common +++ b/vendor/github.com/prometheus/procfs/Makefile.common @@ -33,7 +33,7 @@ GOHOSTOS ?= $(shell $(GO) env GOHOSTOS) GOHOSTARCH ?= $(shell $(GO) env GOHOSTARCH) GO_VERSION ?= $(shell $(GO) version) -GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION))Error Parsing File +GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION)) PRE_GO_111 ?= $(shell echo $(GO_VERSION_NUMBER) | grep -E 'go1\.(10|[0-9])\.') PROMU := $(FIRST_GOPATH)/bin/promu @@ -61,7 +61,8 @@ PROMU_URL := https://github.com/prometheus/promu/releases/download/v$(PROMU_ SKIP_GOLANGCI_LINT := GOLANGCI_LINT := GOLANGCI_LINT_OPTS ?= -GOLANGCI_LINT_VERSION ?= v2.0.2 +GOLANGCI_LINT_VERSION ?= v2.1.5 +GOLANGCI_FMT_OPTS ?= # golangci-lint only supports linux, darwin and windows platforms on i386/amd64/arm64. # windows isn't included here because of the path separator being different. ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin)) @@ -156,9 +157,13 @@ $(GOTEST_DIR): @mkdir -p $@ .PHONY: common-format -common-format: +common-format: $(GOLANGCI_LINT) @echo ">> formatting code" $(GO) fmt $(pkgs) +ifdef GOLANGCI_LINT + @echo ">> formatting code with golangci-lint" + $(GOLANGCI_LINT) fmt $(GOLANGCI_FMT_OPTS) +endif .PHONY: common-vet common-vet: @@ -248,8 +253,8 @@ $(PROMU): cp $(PROMU_TMP)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM)/promu $(FIRST_GOPATH)/bin/promu rm -r $(PROMU_TMP) -.PHONY: proto -proto: +.PHONY: common-proto +common-proto: @echo ">> generating code from proto files" @./scripts/genproto.sh diff --git a/vendor/github.com/prometheus/procfs/mdstat.go b/vendor/github.com/prometheus/procfs/mdstat.go index 67a9d2b44..1fd4381b2 100644 --- a/vendor/github.com/prometheus/procfs/mdstat.go +++ b/vendor/github.com/prometheus/procfs/mdstat.go @@ -123,13 +123,16 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { finish := float64(0) pct := float64(0) recovering := strings.Contains(lines[syncLineIdx], "recovery") + reshaping := strings.Contains(lines[syncLineIdx], "reshape") resyncing := strings.Contains(lines[syncLineIdx], "resync") checking := strings.Contains(lines[syncLineIdx], "check") // Append recovery and resyncing state info. - if recovering || resyncing || checking { + if recovering || resyncing || checking || reshaping { if recovering { state = "recovering" + } else if reshaping { + state = "reshaping" } else if checking { state = "checking" } else { diff --git a/vendor/github.com/prometheus/procfs/meminfo.go b/vendor/github.com/prometheus/procfs/meminfo.go index 4b2c4050a..937e1f960 100644 --- a/vendor/github.com/prometheus/procfs/meminfo.go +++ b/vendor/github.com/prometheus/procfs/meminfo.go @@ -66,6 +66,10 @@ type Meminfo struct { // Memory which has been evicted from RAM, and is temporarily // on the disk SwapFree *uint64 + // Memory consumed by the zswap backend (compressed size) + Zswap *uint64 + // Amount of anonymous memory stored in zswap (original size) + Zswapped *uint64 // Memory which is waiting to get written back to the disk Dirty *uint64 // Memory which is actively being written back to the disk @@ -85,6 +89,8 @@ type Meminfo struct { // amount of memory dedicated to the lowest level of page // tables. PageTables *uint64 + // secondary page tables. + SecPageTables *uint64 // NFS pages sent to the server, but not yet committed to // stable storage NFSUnstable *uint64 @@ -129,15 +135,18 @@ type Meminfo struct { Percpu *uint64 HardwareCorrupted *uint64 AnonHugePages *uint64 + FileHugePages *uint64 ShmemHugePages *uint64 ShmemPmdMapped *uint64 CmaTotal *uint64 CmaFree *uint64 + Unaccepted *uint64 HugePagesTotal *uint64 HugePagesFree *uint64 HugePagesRsvd *uint64 HugePagesSurp *uint64 Hugepagesize *uint64 + Hugetlb *uint64 DirectMap4k *uint64 DirectMap2M *uint64 DirectMap1G *uint64 @@ -161,6 +170,8 @@ type Meminfo struct { MlockedBytes *uint64 SwapTotalBytes *uint64 SwapFreeBytes *uint64 + ZswapBytes *uint64 + ZswappedBytes *uint64 DirtyBytes *uint64 WritebackBytes *uint64 AnonPagesBytes *uint64 @@ -171,6 +182,7 @@ type Meminfo struct { SUnreclaimBytes *uint64 KernelStackBytes *uint64 PageTablesBytes *uint64 + SecPageTablesBytes *uint64 NFSUnstableBytes *uint64 BounceBytes *uint64 WritebackTmpBytes *uint64 @@ -182,11 +194,14 @@ type Meminfo struct { PercpuBytes *uint64 HardwareCorruptedBytes *uint64 AnonHugePagesBytes *uint64 + FileHugePagesBytes *uint64 ShmemHugePagesBytes *uint64 ShmemPmdMappedBytes *uint64 CmaTotalBytes *uint64 CmaFreeBytes *uint64 + UnacceptedBytes *uint64 HugepagesizeBytes *uint64 + HugetlbBytes *uint64 DirectMap4kBytes *uint64 DirectMap2MBytes *uint64 DirectMap1GBytes *uint64 @@ -287,6 +302,12 @@ func parseMemInfo(r io.Reader) (*Meminfo, error) { case "SwapFree:": m.SwapFree = &val m.SwapFreeBytes = &valBytes + case "Zswap:": + m.Zswap = &val + m.ZswapBytes = &valBytes + case "Zswapped:": + m.Zswapped = &val + m.ZswapBytes = &valBytes case "Dirty:": m.Dirty = &val m.DirtyBytes = &valBytes @@ -317,6 +338,9 @@ func parseMemInfo(r io.Reader) (*Meminfo, error) { case "PageTables:": m.PageTables = &val m.PageTablesBytes = &valBytes + case "SecPageTables:": + m.SecPageTables = &val + m.SecPageTablesBytes = &valBytes case "NFS_Unstable:": m.NFSUnstable = &val m.NFSUnstableBytes = &valBytes @@ -350,6 +374,9 @@ func parseMemInfo(r io.Reader) (*Meminfo, error) { case "AnonHugePages:": m.AnonHugePages = &val m.AnonHugePagesBytes = &valBytes + case "FileHugePages:": + m.FileHugePages = &val + m.FileHugePagesBytes = &valBytes case "ShmemHugePages:": m.ShmemHugePages = &val m.ShmemHugePagesBytes = &valBytes @@ -362,6 +389,9 @@ func parseMemInfo(r io.Reader) (*Meminfo, error) { case "CmaFree:": m.CmaFree = &val m.CmaFreeBytes = &valBytes + case "Unaccepted:": + m.Unaccepted = &val + m.UnacceptedBytes = &valBytes case "HugePages_Total:": m.HugePagesTotal = &val case "HugePages_Free:": @@ -373,6 +403,9 @@ func parseMemInfo(r io.Reader) (*Meminfo, error) { case "Hugepagesize:": m.Hugepagesize = &val m.HugepagesizeBytes = &valBytes + case "Hugetlb:": + m.Hugetlb = &val + m.HugetlbBytes = &valBytes case "DirectMap4k:": m.DirectMap4k = &val m.DirectMap4kBytes = &valBytes diff --git a/vendor/github.com/prometheus/procfs/proc_stat.go b/vendor/github.com/prometheus/procfs/proc_stat.go index 06a8d931c..3328556bd 100644 --- a/vendor/github.com/prometheus/procfs/proc_stat.go +++ b/vendor/github.com/prometheus/procfs/proc_stat.go @@ -101,6 +101,12 @@ type ProcStat struct { RSS int // Soft limit in bytes on the rss of the process. RSSLimit uint64 + // The address above which program text can run. + StartCode uint64 + // The address below which program text can run. + EndCode uint64 + // The address of the start (i.e., bottom) of the stack. + StartStack uint64 // CPU number last executed on. Processor uint // Real-time scheduling priority, a number in the range 1 to 99 for processes @@ -177,9 +183,9 @@ func (p Proc) Stat() (ProcStat, error) { &s.VSize, &s.RSS, &s.RSSLimit, - &ignoreUint64, - &ignoreUint64, - &ignoreUint64, + &s.StartCode, + &s.EndCode, + &s.StartStack, &ignoreUint64, &ignoreUint64, &ignoreUint64, diff --git a/vendor/github.com/prometheus/procfs/proc_statm.go b/vendor/github.com/prometheus/procfs/proc_statm.go new file mode 100644 index 000000000..ed5798424 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/proc_statm.go @@ -0,0 +1,116 @@ +// Copyright 2025 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. + +package procfs + +import ( + "os" + "strconv" + "strings" + + "github.com/prometheus/procfs/internal/util" +) + +// - https://man7.org/linux/man-pages/man5/proc_pid_statm.5.html + +// ProcStatm Provides memory usage information for a process, measured in memory pages. +// Read from /proc/[pid]/statm. +type ProcStatm struct { + // The process ID. + PID int + // total program size (same as VmSize in status) + Size uint64 + // resident set size (same as VmRSS in status) + Resident uint64 + // number of resident shared pages (i.e., backed by a file) + Shared uint64 + // text (code) + Text uint64 + // library (unused since Linux 2.6; always 0) + Lib uint64 + // data + stack + Data uint64 + // dirty pages (unused since Linux 2.6; always 0) + Dt uint64 +} + +// NewStatm returns the current status information of the process. +// Deprecated: Use p.Statm() instead. +func (p Proc) NewStatm() (ProcStatm, error) { + return p.Statm() +} + +// Statm returns the current memory usage information of the process. +func (p Proc) Statm() (ProcStatm, error) { + data, err := util.ReadFileNoStat(p.path("statm")) + if err != nil { + return ProcStatm{}, err + } + + statmSlice, err := parseStatm(data) + if err != nil { + return ProcStatm{}, err + } + + procStatm := ProcStatm{ + PID: p.PID, + Size: statmSlice[0], + Resident: statmSlice[1], + Shared: statmSlice[2], + Text: statmSlice[3], + Lib: statmSlice[4], + Data: statmSlice[5], + Dt: statmSlice[6], + } + + return procStatm, nil +} + +// parseStatm return /proc/[pid]/statm data to uint64 slice. +func parseStatm(data []byte) ([]uint64, error) { + var statmSlice []uint64 + statmItems := strings.Fields(string(data)) + for i := 0; i < len(statmItems); i++ { + statmItem, err := strconv.ParseUint(statmItems[i], 10, 64) + if err != nil { + return nil, err + } + statmSlice = append(statmSlice, statmItem) + } + return statmSlice, nil +} + +// SizeBytes returns the process of total program size in bytes. +func (s ProcStatm) SizeBytes() uint64 { + return s.Size * uint64(os.Getpagesize()) +} + +// ResidentBytes returns the process of resident set size in bytes. +func (s ProcStatm) ResidentBytes() uint64 { + return s.Resident * uint64(os.Getpagesize()) +} + +// SHRBytes returns the process of share memory size in bytes. +func (s ProcStatm) SHRBytes() uint64 { + return s.Shared * uint64(os.Getpagesize()) +} + +// TextBytes returns the process of text (code) size in bytes. +func (s ProcStatm) TextBytes() uint64 { + return s.Text * uint64(os.Getpagesize()) +} + +// DataBytes returns the process of data + stack size in bytes. +func (s ProcStatm) DataBytes() uint64 { + return s.Data * uint64(os.Getpagesize()) +} |