From 8e68881164baa84890d4508598a1b14f2e1afc07 Mon Sep 17 00:00:00 2001 From: Antoine Toulme Date: Wed, 16 Oct 2024 22:30:07 -0700 Subject: [PATCH] [receiver/systemd] New receiver for systemd (#35822) #### Description Add a new receiver to handle systemd service state reporting as metrics. #### Link to tracking issue https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/33532 --- .chloggen/initial_systemdreceiver.yaml | 27 ++++ .github/CODEOWNERS | 1 + .github/ISSUE_TEMPLATE/bug_report.yaml | 1 + .github/ISSUE_TEMPLATE/feature_request.yaml | 1 + .github/ISSUE_TEMPLATE/other.yaml | 1 + .github/ISSUE_TEMPLATE/unmaintained.yaml | 1 + cmd/githubgen/allowlist.txt | 3 +- receiver/systemdreceiver/Makefile | 1 + receiver/systemdreceiver/README.md | 13 ++ receiver/systemdreceiver/config.go | 6 + receiver/systemdreceiver/doc.go | 6 + receiver/systemdreceiver/factory.go | 35 +++++ .../generated_component_test.go | 69 +++++++++ .../systemdreceiver/generated_package_test.go | 13 ++ receiver/systemdreceiver/go.mod | 58 ++++++++ receiver/systemdreceiver/go.sum | 134 ++++++++++++++++++ .../internal/metadata/generated_status.go | 16 +++ receiver/systemdreceiver/metadata.yaml | 11 ++ receiver/systemdreceiver/receiver.go | 20 +++ versions.yaml | 1 + 20 files changed, 417 insertions(+), 1 deletion(-) create mode 100644 .chloggen/initial_systemdreceiver.yaml create mode 100644 receiver/systemdreceiver/Makefile create mode 100644 receiver/systemdreceiver/README.md create mode 100644 receiver/systemdreceiver/config.go create mode 100644 receiver/systemdreceiver/doc.go create mode 100644 receiver/systemdreceiver/factory.go create mode 100644 receiver/systemdreceiver/generated_component_test.go create mode 100644 receiver/systemdreceiver/generated_package_test.go create mode 100644 receiver/systemdreceiver/go.mod create mode 100644 receiver/systemdreceiver/go.sum create mode 100644 receiver/systemdreceiver/internal/metadata/generated_status.go create mode 100644 receiver/systemdreceiver/metadata.yaml create mode 100644 receiver/systemdreceiver/receiver.go diff --git a/.chloggen/initial_systemdreceiver.yaml b/.chloggen/initial_systemdreceiver.yaml new file mode 100644 index 000000000000..3dd9232d6795 --- /dev/null +++ b/.chloggen/initial_systemdreceiver.yaml @@ -0,0 +1,27 @@ +# Use this changelog template to create an entry for release notes. + +# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix' +change_type: new_component + +# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver) +component: systemdreceiver + +# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`). +note: Introduce the scaffolding of a new component, systemdreceiver + +# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists. +issues: [33532] + +# (Optional) One or more lines of additional information to render under the primary note. +# These lines will be padded with 2 spaces and then inserted directly into the document. +# Use pipe (|) for multiline entries. +subtext: + +# If your change doesn't affect end users or the exported elements of any package, +# you should instead start your pull request title with [chore] or use the "Skip Changelog" label. +# Optional: The change log or logs in which this entry should be included. +# e.g. '[user]' or '[user, api]' +# Include 'user' if the change is relevant to end users. +# Include 'api' if there is a change to a library API. +# Default: '[user]' +change_logs: [] diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS index 1826422483ae..37c7aec51903 100644 --- a/.github/CODEOWNERS +++ b/.github/CODEOWNERS @@ -295,6 +295,7 @@ receiver/sqlserverreceiver/ @open-teleme receiver/sshcheckreceiver/ @open-telemetry/collector-contrib-approvers @nslaughter @codeboten receiver/statsdreceiver/ @open-telemetry/collector-contrib-approvers @jmacd @dmitryax receiver/syslogreceiver/ @open-telemetry/collector-contrib-approvers @djaglowski @andrzej-stencel +receiver/systemdreceiver/ @open-telemetry/collector-contrib-approvers @Hemansh31 @atoulme receiver/tcplogreceiver/ @open-telemetry/collector-contrib-approvers @djaglowski receiver/tlscheckreceiver/ @open-telemetry/collector-contrib-approvers @atoulme @michael-burt receiver/udplogreceiver/ @open-telemetry/collector-contrib-approvers @djaglowski diff --git a/.github/ISSUE_TEMPLATE/bug_report.yaml b/.github/ISSUE_TEMPLATE/bug_report.yaml index 359cb4a6b06a..9d736dadb9f8 100644 --- a/.github/ISSUE_TEMPLATE/bug_report.yaml +++ b/.github/ISSUE_TEMPLATE/bug_report.yaml @@ -290,6 +290,7 @@ body: - receiver/sshcheck - receiver/statsd - receiver/syslog + - receiver/systemd - receiver/tcplog - receiver/tlscheck - receiver/udplog diff --git a/.github/ISSUE_TEMPLATE/feature_request.yaml b/.github/ISSUE_TEMPLATE/feature_request.yaml index 5203d2e7659b..3fd840e735d9 100644 --- a/.github/ISSUE_TEMPLATE/feature_request.yaml +++ b/.github/ISSUE_TEMPLATE/feature_request.yaml @@ -284,6 +284,7 @@ body: - receiver/sshcheck - receiver/statsd - receiver/syslog + - receiver/systemd - receiver/tcplog - receiver/tlscheck - receiver/udplog diff --git a/.github/ISSUE_TEMPLATE/other.yaml b/.github/ISSUE_TEMPLATE/other.yaml index 11380d858eaa..e21e52dbe341 100644 --- a/.github/ISSUE_TEMPLATE/other.yaml +++ b/.github/ISSUE_TEMPLATE/other.yaml @@ -284,6 +284,7 @@ body: - receiver/sshcheck - receiver/statsd - receiver/syslog + - receiver/systemd - receiver/tcplog - receiver/tlscheck - receiver/udplog diff --git a/.github/ISSUE_TEMPLATE/unmaintained.yaml b/.github/ISSUE_TEMPLATE/unmaintained.yaml index ef4baccf3a5c..cf6c3dd7dd46 100644 --- a/.github/ISSUE_TEMPLATE/unmaintained.yaml +++ b/.github/ISSUE_TEMPLATE/unmaintained.yaml @@ -289,6 +289,7 @@ body: - receiver/sshcheck - receiver/statsd - receiver/syslog + - receiver/systemd - receiver/tcplog - receiver/tlscheck - receiver/udplog diff --git a/cmd/githubgen/allowlist.txt b/cmd/githubgen/allowlist.txt index 6ba509caff99..27764783fa17 100644 --- a/cmd/githubgen/allowlist.txt +++ b/cmd/githubgen/allowlist.txt @@ -23,4 +23,5 @@ m1rp jriguera abhishek-at-cloudwerx joker-star-l -michael-burt \ No newline at end of file +michael-burt +Hemansh31 \ No newline at end of file diff --git a/receiver/systemdreceiver/Makefile b/receiver/systemdreceiver/Makefile new file mode 100644 index 000000000000..ded7a36092dc --- /dev/null +++ b/receiver/systemdreceiver/Makefile @@ -0,0 +1 @@ +include ../../Makefile.Common diff --git a/receiver/systemdreceiver/README.md b/receiver/systemdreceiver/README.md new file mode 100644 index 000000000000..77125ff8500d --- /dev/null +++ b/receiver/systemdreceiver/README.md @@ -0,0 +1,13 @@ +# Systemd Receiver + + +| Status | | +| ------------- |-----------| +| Stability | [development]: metrics | +| Distributions | [] | +| Issues | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Areceiver%2Fsystemd%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Areceiver%2Fsystemd) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Areceiver%2Fsystemd%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Areceiver%2Fsystemd) | +| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner) | [@Hemansh31](https://www.github.com/Hemansh31), [@atoulme](https://www.github.com/atoulme) | + +[development]: https://github.com/open-telemetry/opentelemetry-collector#development + + diff --git a/receiver/systemdreceiver/config.go b/receiver/systemdreceiver/config.go new file mode 100644 index 000000000000..999c1fbc54f6 --- /dev/null +++ b/receiver/systemdreceiver/config.go @@ -0,0 +1,6 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package systemdreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver" + +type Config struct{} diff --git a/receiver/systemdreceiver/doc.go b/receiver/systemdreceiver/doc.go new file mode 100644 index 000000000000..b4d6bd5454d3 --- /dev/null +++ b/receiver/systemdreceiver/doc.go @@ -0,0 +1,6 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +//go:generate mdatagen metadata.yaml + +package systemdreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver" diff --git a/receiver/systemdreceiver/factory.go b/receiver/systemdreceiver/factory.go new file mode 100644 index 000000000000..0891b5652978 --- /dev/null +++ b/receiver/systemdreceiver/factory.go @@ -0,0 +1,35 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package systemdreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver" + +import ( + "context" + + "go.opentelemetry.io/collector/component" + "go.opentelemetry.io/collector/consumer" + "go.opentelemetry.io/collector/receiver" + + "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver/internal/metadata" +) + +// NewFactory creates a factory for systemd receiver. +func NewFactory() receiver.Factory { + return receiver.NewFactory( + metadata.Type, + createDefaultConfig, + receiver.WithMetrics(createMetricsReceiver, metadata.MetricsStability)) +} + +func createDefaultConfig() component.Config { + return &Config{} +} + +func createMetricsReceiver( + _ context.Context, + _ receiver.Settings, + _ component.Config, + _ consumer.Metrics, +) (receiver.Metrics, error) { + return systemdReceiver{}, nil +} diff --git a/receiver/systemdreceiver/generated_component_test.go b/receiver/systemdreceiver/generated_component_test.go new file mode 100644 index 000000000000..c8f47c3f98e1 --- /dev/null +++ b/receiver/systemdreceiver/generated_component_test.go @@ -0,0 +1,69 @@ +// Code generated by mdatagen. DO NOT EDIT. + +package systemdreceiver + +import ( + "context" + "testing" + + "github.com/stretchr/testify/require" + "go.opentelemetry.io/collector/component" + "go.opentelemetry.io/collector/component/componenttest" + "go.opentelemetry.io/collector/confmap/confmaptest" + "go.opentelemetry.io/collector/consumer/consumertest" + "go.opentelemetry.io/collector/receiver" + "go.opentelemetry.io/collector/receiver/receivertest" +) + +func TestComponentFactoryType(t *testing.T) { + require.Equal(t, "systemd", NewFactory().Type().String()) +} + +func TestComponentConfigStruct(t *testing.T) { + require.NoError(t, componenttest.CheckConfigStruct(NewFactory().CreateDefaultConfig())) +} + +func TestComponentLifecycle(t *testing.T) { + factory := NewFactory() + + tests := []struct { + name string + createFn func(ctx context.Context, set receiver.Settings, cfg component.Config) (component.Component, error) + }{ + + { + name: "metrics", + createFn: func(ctx context.Context, set receiver.Settings, cfg component.Config) (component.Component, error) { + return factory.CreateMetrics(ctx, set, cfg, consumertest.NewNop()) + }, + }, + } + + cm, err := confmaptest.LoadConf("metadata.yaml") + require.NoError(t, err) + cfg := factory.CreateDefaultConfig() + sub, err := cm.Sub("tests::config") + require.NoError(t, err) + require.NoError(t, sub.Unmarshal(&cfg)) + + for _, tt := range tests { + t.Run(tt.name+"-shutdown", func(t *testing.T) { + c, err := tt.createFn(context.Background(), receivertest.NewNopSettings(), cfg) + require.NoError(t, err) + err = c.Shutdown(context.Background()) + require.NoError(t, err) + }) + t.Run(tt.name+"-lifecycle", func(t *testing.T) { + firstRcvr, err := tt.createFn(context.Background(), receivertest.NewNopSettings(), cfg) + require.NoError(t, err) + host := componenttest.NewNopHost() + require.NoError(t, err) + require.NoError(t, firstRcvr.Start(context.Background(), host)) + require.NoError(t, firstRcvr.Shutdown(context.Background())) + secondRcvr, err := tt.createFn(context.Background(), receivertest.NewNopSettings(), cfg) + require.NoError(t, err) + require.NoError(t, secondRcvr.Start(context.Background(), host)) + require.NoError(t, secondRcvr.Shutdown(context.Background())) + }) + } +} diff --git a/receiver/systemdreceiver/generated_package_test.go b/receiver/systemdreceiver/generated_package_test.go new file mode 100644 index 000000000000..ceddbf1a2b34 --- /dev/null +++ b/receiver/systemdreceiver/generated_package_test.go @@ -0,0 +1,13 @@ +// Code generated by mdatagen. DO NOT EDIT. + +package systemdreceiver + +import ( + "testing" + + "go.uber.org/goleak" +) + +func TestMain(m *testing.M) { + goleak.VerifyTestMain(m) +} diff --git a/receiver/systemdreceiver/go.mod b/receiver/systemdreceiver/go.mod new file mode 100644 index 000000000000..6f2283538bf7 --- /dev/null +++ b/receiver/systemdreceiver/go.mod @@ -0,0 +1,58 @@ +module github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver + +go 1.22.0 + +require ( + github.com/stretchr/testify v1.9.0 + go.opentelemetry.io/collector/component v0.111.1-0.20241008154146-ea48c09c31ae + go.opentelemetry.io/collector/confmap v1.17.1-0.20241008154146-ea48c09c31ae + go.opentelemetry.io/collector/consumer v0.111.1-0.20241008154146-ea48c09c31ae + go.opentelemetry.io/collector/consumer/consumertest v0.111.1-0.20241008154146-ea48c09c31ae + go.opentelemetry.io/collector/receiver v0.111.1-0.20241008154146-ea48c09c31ae + go.uber.org/goleak v1.3.0 +) + +require ( + github.com/davecgh/go-spew v1.1.1 // indirect + github.com/go-logr/logr v1.4.2 // indirect + github.com/go-logr/stdr v1.2.2 // indirect + github.com/go-viper/mapstructure/v2 v2.1.0 // indirect + github.com/gogo/protobuf v1.3.2 // indirect + github.com/google/uuid v1.6.0 // indirect + github.com/json-iterator/go v1.1.12 // indirect + github.com/knadh/koanf/maps v0.1.1 // indirect + github.com/knadh/koanf/providers/confmap v0.1.0 // indirect + github.com/knadh/koanf/v2 v2.1.1 // indirect + github.com/mitchellh/copystructure v1.2.0 // indirect + github.com/mitchellh/reflectwalk v1.0.2 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/modern-go/reflect2 v1.0.2 // indirect + github.com/pmezard/go-difflib v1.0.0 // indirect + go.opentelemetry.io/collector/config/configtelemetry v0.111.1-0.20241008154146-ea48c09c31ae // indirect + go.opentelemetry.io/collector/consumer/consumerprofiles v0.111.1-0.20241008154146-ea48c09c31ae // indirect + go.opentelemetry.io/collector/internal/globalsignal v0.111.1-0.20241008154146-ea48c09c31ae // indirect + go.opentelemetry.io/collector/pdata v1.17.1-0.20241008154146-ea48c09c31ae // indirect + go.opentelemetry.io/collector/pdata/pprofile v0.111.1-0.20241008154146-ea48c09c31ae // indirect + go.opentelemetry.io/collector/pipeline v0.111.1-0.20241008154146-ea48c09c31ae // indirect + go.opentelemetry.io/collector/receiver/receiverprofiles v0.111.1-0.20241008154146-ea48c09c31ae // indirect + go.opentelemetry.io/otel v1.31.0 // indirect + go.opentelemetry.io/otel/metric v1.31.0 // indirect + go.opentelemetry.io/otel/sdk v1.31.0 // indirect + go.opentelemetry.io/otel/sdk/metric v1.31.0 // indirect + go.opentelemetry.io/otel/trace v1.31.0 // indirect + go.uber.org/multierr v1.11.0 // indirect + go.uber.org/zap v1.27.0 // indirect + golang.org/x/net v0.28.0 // indirect + golang.org/x/sys v0.26.0 // indirect + golang.org/x/text v0.19.0 // indirect + google.golang.org/genproto/googleapis/rpc v0.0.0-20240822170219-fc7c04adadcd // indirect + google.golang.org/grpc v1.67.1 // indirect + google.golang.org/protobuf v1.35.1 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect +) + +retract ( + v0.76.2 + v0.76.1 + v0.65.0 +) diff --git a/receiver/systemdreceiver/go.sum b/receiver/systemdreceiver/go.sum new file mode 100644 index 000000000000..1dea2d23ea02 --- /dev/null +++ b/receiver/systemdreceiver/go.sum @@ -0,0 +1,134 @@ +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= +github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY= +github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY= +github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag= +github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE= +github.com/go-viper/mapstructure/v2 v2.1.0 h1:gHnMa2Y/pIxElCH2GlZZ1lZSsn6XMtufpGyP1XxdC/w= +github.com/go-viper/mapstructure/v2 v2.1.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM= +github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q= +github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= +github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= +github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0= +github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/json-iterator/go v1.1.12 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h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/receiver/systemdreceiver/internal/metadata/generated_status.go b/receiver/systemdreceiver/internal/metadata/generated_status.go new file mode 100644 index 000000000000..e2588d632527 --- /dev/null +++ b/receiver/systemdreceiver/internal/metadata/generated_status.go @@ -0,0 +1,16 @@ +// Code generated by mdatagen. DO NOT EDIT. + +package metadata + +import ( + "go.opentelemetry.io/collector/component" +) + +var ( + Type = component.MustNewType("systemd") + ScopeName = "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver" +) + +const ( + MetricsStability = component.StabilityLevelDevelopment +) diff --git a/receiver/systemdreceiver/metadata.yaml b/receiver/systemdreceiver/metadata.yaml new file mode 100644 index 000000000000..be0acdfb59bb --- /dev/null +++ b/receiver/systemdreceiver/metadata.yaml @@ -0,0 +1,11 @@ +type: systemd + +status: + class: receiver + stability: + development: [metrics] + distributions: [] + codeowners: + active: [Hemansh31, atoulme] + +tests: diff --git a/receiver/systemdreceiver/receiver.go b/receiver/systemdreceiver/receiver.go new file mode 100644 index 000000000000..ad21a0766210 --- /dev/null +++ b/receiver/systemdreceiver/receiver.go @@ -0,0 +1,20 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +package systemdreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver" +import ( + "context" + + "go.opentelemetry.io/collector/component" +) + +type systemdReceiver struct { +} + +func (s systemdReceiver) Start(_ context.Context, _ component.Host) error { + return nil +} + +func (s systemdReceiver) Shutdown(_ context.Context) error { + return nil +} diff --git a/versions.yaml b/versions.yaml index 30cb52a4201e..9285237ac543 100644 --- a/versions.yaml +++ b/versions.yaml @@ -274,6 +274,7 @@ module-sets: - github.com/open-telemetry/opentelemetry-collector-contrib/receiver/sshcheckreceiver - github.com/open-telemetry/opentelemetry-collector-contrib/receiver/statsdreceiver - github.com/open-telemetry/opentelemetry-collector-contrib/receiver/syslogreceiver + - github.com/open-telemetry/opentelemetry-collector-contrib/receiver/systemdreceiver - github.com/open-telemetry/opentelemetry-collector-contrib/receiver/tcplogreceiver - github.com/open-telemetry/opentelemetry-collector-contrib/receiver/tlscheckreceiver - github.com/open-telemetry/opentelemetry-collector-contrib/receiver/udplogreceiver