[chore] lokireceiver. update to use generated header (#21084)

Updates lokireceiver to use new generated status header. There are no warnings to list. Updated README a little bit: ports for HTTP and gRPC were mixed up.

Link to tracking Issue: #19172

receiver/lokireceiver/README.md

@@ -1,11 +1,16 @@
 # Loki Receiver
 
+<!-- status autogenerated section -->
 | Status                   |           |
 | ------------------------ |-----------|
 | Stability                | [alpha]   |
-| Supported pipeline types | logs      |
+| Supported pipeline types | logs   |
 | Distributions            | [contrib] |
 
+[alpha]: https://github.com/open-telemetry/opentelemetry-collector#alpha
+[contrib]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib
+<!-- end autogenerated section -->
+
 The Loki receiver implements the [Loki push api](https://grafana.com/docs/loki/latest/clients/promtail/#loki-push-api) as specified [here](https://grafana.com/docs/loki/latest/api/#push-log-entries-to-loki). 
 It allows Promtail instances to specify the open telemetry collector as their lokiAddress.
 
@@ -15,7 +20,7 @@ This receiver runs HTTP and GRPC servers to ingest log entries in Loki format.
 
 The settings are:
 
-- `endpoint` (required, default = 0.0.0.0:3500 for grpc protocol, 0.0.0.0:3600 http protocol): host:port to which the receiver is going to receive data.
+- `endpoint` (required, default = 0.0.0.0:3500 for HTTP protocol, 0.0.0.0:3600 gRPC protocol): host:port to which the receiver is going to receive data.
 - `use_incoming_timestamp` (optional, default = false) if set `true` the timestamp from Loki log entry is used
 
 Example:
@@ -27,6 +32,3 @@ receivers:
       grpc:
     use_incoming_timestamp: true
 ```
-
-[alpha]:https://github.com/open-telemetry/opentelemetry-collector#alpha
-[contrib]:https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib

receiver/lokireceiver/config_test.go

@@ -25,6 +25,8 @@ import (
 	"go.opentelemetry.io/collector/config/confighttp"
 	"go.opentelemetry.io/collector/config/confignet"
 	"go.opentelemetry.io/collector/confmap/confmaptest"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/lokireceiver/internal/metadata"
 )
 
 func TestLoadConfig(t *testing.T) {
@@ -38,7 +40,7 @@ func TestLoadConfig(t *testing.T) {
 		expected component.Config
 	}{
 		{
-			id: component.NewIDWithName(typeStr, "defaults"),
+			id: component.NewIDWithName(metadata.Type, "defaults"),
 			expected: &Config{
 				Protocols: Protocols{
 					GRPC: &configgrpc.GRPCServerSettings{
@@ -54,7 +56,7 @@ func TestLoadConfig(t *testing.T) {
 			},
 		},
 		{
-			id: component.NewIDWithName(typeStr, "mixed"),
+			id: component.NewIDWithName(metadata.Type, "mixed"),
 			expected: &Config{
 				Protocols: Protocols{
 					GRPC: &configgrpc.GRPCServerSettings{
@@ -96,7 +98,7 @@ func TestInvalidConfig(t *testing.T) {
 		err string
 	}{
 		{
-			id:  component.NewIDWithName(typeStr, "empty"),
+			id:  component.NewIDWithName(metadata.Type, "empty"),
 			err: "must specify at least one protocol when using the Loki receiver",
 		},
 	}
@@ -125,7 +127,7 @@ func TestConfigWithUnknownKeysConfig(t *testing.T) {
 		err string
 	}{
 		{
-			id:  component.NewIDWithName(typeStr, "extra_keys"),
+			id:  component.NewIDWithName(metadata.Type, "extra_keys"),
 			err: "'' has invalid keys: foo",
 		},
 	}

receiver/lokireceiver/factory.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:generate mdatagen metadata.yaml
+
 package lokireceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/lokireceiver"
 
 import (
@@ -23,24 +25,21 @@ import (
 	"go.opentelemetry.io/collector/config/confignet"
 	"go.opentelemetry.io/collector/consumer"
 	"go.opentelemetry.io/collector/receiver"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/lokireceiver/internal/metadata"
 )
 
 const (
-	// The value of "type" key in configuration.
-	typeStr = "loki"
-	// The stability level of the receiver.
-	stability = component.StabilityLevelDevelopment
-
 	defaultGRPCBindEndpoint = "0.0.0.0:3600"
 	defaultHTTPBindEndpoint = "0.0.0.0:3500"
 )
 
 // NewFactory return a new receiver.Factory for loki receiver.
 func NewFactory() receiver.Factory {
 	return receiver.NewFactory(
-		typeStr,
+		metadata.Type,
 		createDefaultConfig,
-		receiver.WithLogs(createLogsReceiver, stability))
+		receiver.WithLogs(createLogsReceiver, metadata.Stability))
 }
 
 func createDefaultConfig() component.Config {

receiver/lokireceiver/metadata.yaml

@@ -0,0 +1,7 @@
+type: loki
+
+status:
+  class: receiver
+  stability: alpha
+  pipelines: [logs]
+  distributions: [contrib]