add example for OTLP logging via stdout and k8s

Author: zeitlinger

logging-k8s-stdout-otlp-json/README.md

@@ -15,16 +15,22 @@ This example contains
   [experimental-otlp/stdout](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/configuration/sdk-environment-variables.md#in-development-exporter-selection) logs exporter
 - a OTel collector configuration that uses the 
   [OTLP/JSON connector](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/connector/otlpjsonconnector) to turn Pod logs into `OTLP`
-
+    
+## Architecture
 
 ![OTLP/JSON Architecture](otlpjson-architecture.png)
 
+The OTel Collector pipeline:
+
+![OTel Collector Pipeline](otel-collector-otlpjson-pipeline.png)
+
 ## Getting Started
 
 The k8s directory contains the Kubernetes manifests to deploy the application and the collector.
 
-Ignore the `lgtm.yaml` file, which is only used for running locally and automated testing
-using [OATs](https://github.com/grafana/oats).
+Ignore the `lgtm.yaml` file, which is only used for running locally with 
+[LGTM](https://github.com/grafana/docker-otel-lgtm/) 
+and automated testing using [OATs](https://github.com/grafana/oats).
 
 ## Running locally
 

logging-k8s-stdout-otlp-json/k8s/collector-configmap.yaml

@@ -32,9 +32,8 @@ data:
         override: false
 
       k8sattributes:
-         # Config details in 
-         # https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/k8sattributesprocessor
-``
+      # Config details in 
+      # https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/k8sattributesprocessor
     connectors:
       otlpjson:
 
@@ -57,11 +56,11 @@ data:
       pipelines:
         traces:
           receivers: [ otlp ]
-          processors: [k8sattributes, resourcedetection, batch]
+          processors: [ k8sattributes, resourcedetection, batch ]
           exporters: [ otlphttp/traces ]
         metrics:
           receivers: [ otlp, prometheus/collector ]
-          processors: [k8sattributes, resourcedetection, batch]
+          processors: [ k8sattributes, resourcedetection, batch ]
           exporters: [ otlphttp/metrics ]
         logs/raw_otlpjson:
           receivers: [ filelog/otlp-json-logs ]
@@ -71,6 +70,6 @@ data:
           exporters: [ otlpjson ]
         logs/otlp:
           receivers: [ otlp, otlpjson ]
-          processors: [k8sattributes, resourcedetection, batch]
+          processors: [ k8sattributes, resourcedetection, batch ]
           exporters: [ otlphttp/logs ]
           # exporters: [ otlphttp/logs, debug/logs ]  # Uncomment this line to enable debug logging