[receiver/couchdb] Define metrics (#6878)

* establish couchdb codebase
establish couchdb metadata metrics

add metadata metrics

update units

establish couchdb codebase

clean up names/format

add couchdbreceiver to verisons

remove host validation

fix nit

add check for default endpoint on CreateDefaultConfig

add missing receivers in versions

update versions end space

update metadata pr feedback

remove enum for http.method/status_code

add code gen experimental tag, failed, bug issue made

update metadata to include enable

* update changelog

* update metrics to value_type int

* update nit changes

* update metadata names

* add view attribute

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 - `couchdbreceiver`: Add couchdb client (#6880)
 - `elasticsearchreceiver`: Implement scraper client (#7019)
+- `couchdbreceiver`: Add metadata metrics (#6878)
 - `prometheusremotewriteexporter`: Handling Staleness flag from OTLP (#6679)
 - `prometheusexporter`: Handling Staleness flag from OTLP (#6805)
 - `prometheusreceiver`: Set OTLP no-data-present flag for stale scraped metrics. (#7043)

receiver/couchdbreceiver/codegen.go

@@ -0,0 +1,20 @@
+// Copyright The OpenTelemetry 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 !windows
+// +build !windows
+
+//go:generate mdatagen --experimental-gen metadata.yaml
+
+package couchdbreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/couchdbreceiver"

receiver/couchdbreceiver/documentation.md

@@ -8,8 +8,21 @@ These are the metrics available for this scraper.
 
 | Name | Description | Unit | Type | Attributes |
 | ---- | ----------- | ---- | ---- | ---------- |
+| couchdb.average_request_time | The average duration of a served request. | ms | Gauge(Double) | <ul> </ul> |
+| couchdb.database.open | The number of open databases. | {databases} | Sum(Int) | <ul> </ul> |
+| couchdb.database.operations | The number of database operations. | {operations} | Sum(Int) | <ul> <li>operation</li> </ul> |
+| couchdb.file_descriptor.open | The number of open file descriptors. | {files} | Sum(Int) | <ul> </ul> |
+| couchdb.httpd.bulk_requests | The number of bulk requests. | {requests} | Sum(Int) | <ul> </ul> |
+| couchdb.httpd.requests | The number of HTTP requests by method. | {requests} | Sum(Int) | <ul> <li>http.method</li> </ul> |
+| couchdb.httpd.responses | The number of each HTTP status code. | {responses} | Sum(Int) | <ul> <li>http.status_code</li> </ul> |
+| couchdb.httpd.views | The number of views read. | {views} | Sum(Int) | <ul> <li>view</li> </ul> |
 
 ## Attributes
 
 | Name | Description |
 | ---- | ----------- |
+| couchdb.node.name | The name of the node. |
+| http.method | An HTTP request method. |
+| http.status_code | An HTTP status code. |
+| operation | The operation type. |
+| view | The view type. |

receiver/couchdbreceiver/factory.go

@@ -14,8 +14,6 @@
 
 package couchdbreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/couchdbreceiver"
 
-//go:generate mdatagen metadata.yaml
-
 import (
 	"context"
 	"time"