[receiver/Flinkmetricsreceiver] Apache Flink Metric Receiver (open-te…

…lemetry#10121)

* wip before integration and concurrency

* tidy up client names

* wip integration test

* wip integration test

* update to flinkmetrics and integration test

* move attributes to resource attributes

* add flink integration files

* update model import name

* add changelog and tidy up

* update mod and lint check

* update with pr feedback

* update pr feedback with status header

* unexport process methods

* go tidy up

* add partial metrics collecting on taskmanager, jobs, and subtasks

* go tidy update

* fix shadow declaration of err

* update pr feedback

* tidy up

* apply scope version update

* make expected responses easier to test when metadata/generated files update

* update to host.name and move status table

* combine jobmanager and taskmanager metrics

* tidy up

* update generated files

* fix mod version

* update pr feedback

* tidy up

* seperated checkpoint in_progress as non-monotonic sum metric

* tidy up local receiver

* update version

* update cpu descriptions

* fix taskmanager/jobs bug and added tests with multiple taskmanagers/jobs

* space

* change non_heap to nonheap

* update unit

.github/CODEOWNERS

@@ -123,6 +123,7 @@ receiver/dotnetdiagnosticsreceiver/ @open-telemetry/collector-c
 receiver/elasticsearchreceiver/ @open-telemetry/collector-contrib-approvers @djaglowski @binaryfissiongames
 receiver/expvarreceiver/ @open-telemetry/collector-contrib-approvers @jamesmoessis @MovieStoreGuy
 receiver/filelogreceiver/ @open-telemetry/collector-contrib-approvers @djaglowski
+receiver/flinkmetricsreceiver/ @open-telemetry/collector-contrib-approvers @jonathanwamsley @djaglowski
 receiver/fluentforwardreceiver/ @open-telemetry/collector-contrib-approvers @dmitryax
 receiver/googlecloudpubsubreceiver/ @open-telemetry/collector-contrib-approvers @alexvanboxel
 receiver/googlecloudspannerreceiver/ @open-telemetry/collector-contrib-approvers @ydrozhdzhal @asukhyy @khospodarysko @architjugran

CHANGELOG.md

@@ -6,14 +6,15 @@
 
 - `jmxreceiver`: Remove properties & groovyscript parameters from JMX Receiver. Add ResourceAttributes & LogLevel parameter to supply some of the removed functionality with reduced attack surface (#9685)
 - `resourcedetectionprocessor`: 'gke' and 'gce' resource detectors are replaced with a single 'gcp' detector (#10347)
-
 - `pkg/stanza`: Removed reference to deprecated `ClusterName` (#10426)
 - `couchbasereceiver`: Fully removed unimplemented Couchbase receiver (#10482)
 
 ### 🚩 Deprecations 🚩
 
 
 ### 🚀 New components 🚀
+
+- `flinkmetricsreceiver`: Add implementation of Flink Metric Receiver (#10121)
 - `windowseventlogreceiver` Added implementation of Windows Event Log Receiver (#9228)
 - `vcenterreceiver`: Add metrics receiver for new vcenterreceiver component (#9224)
 

cmd/configschema/go.mod

@@ -346,6 +346,7 @@ require (
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/dotnetdiagnosticsreceiver v0.52.0 // indirect
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/elasticsearchreceiver v0.52.0 // indirect
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/filelogreceiver v0.52.0 // indirect
+ github.com/open-telemetry/opentelemetry-collector-contrib/receiver/flinkmetricsreceiver v0.0.0-00010101000000-000000000000 // indirect
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver v0.52.0 // indirect
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/googlecloudspannerreceiver v0.52.0 // indirect
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/hostmetricsreceiver v0.52.0 // indirect
@@ -761,6 +762,8 @@ replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/elast
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/filelogreceiver => ../../receiver/filelogreceiver
 
+replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/flinkmetricsreceiver => ../../receiver/flinkmetricsreceiver
+
 replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver => ../../receiver/fluentforwardreceiver
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/googlecloudpubsubreceiver => ../../receiver/googlecloudpubsubreceiver

go.mod

@@ -93,6 +93,7 @@ require (
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/dotnetdiagnosticsreceiver v0.52.0
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/elasticsearchreceiver v0.52.0
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/filelogreceiver v0.52.0
+ github.com/open-telemetry/opentelemetry-collector-contrib/receiver/flinkmetricsreceiver v0.0.0-00010101000000-000000000000
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver v0.52.0
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/googlecloudspannerreceiver v0.52.0
  github.com/open-telemetry/opentelemetry-collector-contrib/receiver/hostmetricsreceiver v0.52.0
@@ -757,6 +758,8 @@ replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/colle
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/couchdbreceiver => ./receiver/couchdbreceiver
 
+replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/flinkmetricsreceiver => ./receiver/flinkmetricsreceiver
+
 replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/dockerstatsreceiver => ./receiver/dockerstatsreceiver
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/receiver/dotnetdiagnosticsreceiver => ./receiver/dotnetdiagnosticsreceiver

internal/components/components.go

@@ -113,6 +113,7 @@ import (
  "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/dotnetdiagnosticsreceiver"
  "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/elasticsearchreceiver"
  "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/filelogreceiver"
+ "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/flinkmetricsreceiver"
  "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/fluentforwardreceiver"
  "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/googlecloudspannerreceiver"
  "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/hostmetricsreceiver"
@@ -204,6 +205,7 @@ func Components() (component.Factories, error) {
  dotnetdiagnosticsreceiver.NewFactory(),
  elasticsearchreceiver.NewFactory(),
  filelogreceiver.NewFactory(),
+ flinkmetricsreceiver.NewFactory(),
  fluentforwardreceiver.NewFactory(),
  googlecloudspannerreceiver.NewFactory(),
  hostmetricsreceiver.NewFactory(),

internal/components/receivers_test.go

@@ -118,6 +118,9 @@ func TestDefaultReceivers(t *testing.T) {
  return cfg
  },
  },
+ {
+ receiver: "flinkmetrics",
+ },
  {
  receiver: "fluentforward",
  },

receiver/flinkmetricsreceiver/Makefile

@@ -0,0 +1 @@
+include ../../Makefile.Common

receiver/flinkmetricsreceiver/README.md

@@ -0,0 +1,43 @@
+# FlinkMetrics Receiver
+
+| Status | |
+| ------------------------ | --------- |
+| Stability | [alpha] |
+| Supported pipeline types | metrics |
+| Distributions | [contrib] |
+
+This receiver uses Flink's [REST API](https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/ops/metrics/#rest-api-integration) to collect Jobmanager, Taskmanager, Job, Task and Operator metrics.
+
+## Prerequisites
+
+This receiver supports Apache Flink versions `1.13.6` and `1.14.4`.
+
+By default, authentication is not required. However, [Flink recommends](https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/security/security-ssl/#external--rest-connectivity) using a “side car proxy” that Binds the REST endpoint to the loopback interface and to start a REST proxy that authenticates and forwards the request to Flink.
+
+[SSL](https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/security/security-ssl/#external--rest-connectivity) can be enabled with the following REST endpoint [options](https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/security/security-ssl/#rest-endpoints-external-connectivity) for external connectivity and have a self signed certificate or be self signed.
+
+## Configuration
+
+The following settings are optional:
+
+- `endpoint` (default: `http:https://localhost:15672`): The URL of the node to be monitored.
+- `collection_interval` (default = `10s`): This receiver collects metrics on an interval. Valid time units are `ns`, `us` (or `µs`), `ms`, `s`, `m`, `h`.
+- `tls` (defaults defined [here](https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/configtls/README.md)): TLS control. By default insecure settings are rejected and certificate verification is on.
+
+### Example Configuration
+
+```yaml
+receivers:
+ flinkmetrics:
+ endpoint: http:https://localhost:8081
+ collection_interval: 10s
+```
+
+The full list of settings exposed for this receiver are documented [here](./config.go) with detailed sample configurations [here](./testdata/config.yaml). TLS config is documented further under the [opentelemetry collector's configtls package](https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/configtls/README.md).
+
+## Metrics
+
+Details about the metrics produced by this receiver can be found in [metadata.yaml](./metadata.yaml)
+
+[alpha]: https://github.com/open-telemetry/opentelemetry-collector-contrib#alpha
+[contrib]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib