Refactor topic to fix errors (#4909)

(cherry picked from commit af1c3df)

Author: clayton-cornell

docs/sources/collect/opentelemetry-to-lgtm-stack.md

@@ -24,8 +24,10 @@ This topic describes how to:
 * [`otelcol.auth.basic`][otelcol.auth.basic]
 * [`otelcol.exporter.loki`][otelcol.exporter.loki]
 * [`otelcol.exporter.otlp`][otelcol.exporter.otlp]
+* [`otelcol.exporter.otlphttp`][otelcol.exporter.otlphttp]
 * [`otelcol.exporter.prometheus`][otelcol.exporter.prometheus]
 * [`otelcol.processor.batch`][otelcol.processor.batch]
+* [`otelcol.processor.memory_limiter`][otelcol.processor.memory_limiter]
 * [`otelcol.receiver.otlp`][otelcol.receiver.otlp]
 * [`prometheus.remote_write`][prometheus.remote_write]
 
@@ -76,7 +78,7 @@ otelcol.exporter.otlp "default" {
 The pipeline looks like this:
 
 ```plaintext
-Metrics, Logs, Traces: OTLP Receiver → batch processor → OTLP Exporter
+Metrics, Logs, Traces: OTLP Receiver → Batch Processor → OTLP HTTP Exporter
 ```
 
 ## Grafana Cloud
@@ -109,14 +111,19 @@ Replace the following:
 
 This configuration uses the credentials stored in `otelcol.auth.basic "default"` to authenticate against the Grafana Cloud OTLP endpoints, and you should start to see your data arrive.
 
-## Other platforms (Grafana Enterprise, Grafana Open Source)
+{{< admonition type="note" >}}
+For Grafana Cloud, use `otelcol.exporter.otlphttp` which sends data over HTTP/HTTPS.
+Use `otelcol.exporter.otlp` for gRPC endpoints when working with other platforms.
+{{< /admonition >}}
+
+## Other platforms: Grafana Enterprise and Grafana Open Source
 
 You can implement the following pipelines to send your data to Loki, Tempo, and Mimir or Prometheus.
 
 ```plaintext
-Metrics: OTel → batch processor → Mimir or Prometheus remote write
-Logs: OTel → batch processor → Loki exporter
-Traces: OTel → batch processor → OTel exporter
+Metrics: OTLP Receiver → Batch Processor → Prometheus Exporter → Prometheus Remote Write
+Logs: OTLP Receiver → Batch Processor → Loki Exporter → Loki Write  
+Traces: OTLP Receiver → Batch Processor → OTLP Exporter (gRPC/HTTP)
 ```
 
 ### Grafana Loki
@@ -136,7 +143,7 @@ loki.write "default" {
 }
 ```
 
-To use Loki with basic-auth, which is required with Grafana Cloud Logs, you must configure the [`loki.write`][loki.write] component.
+To use Loki with basic-auth, which Grafana Cloud Logs requires, you must configure the [`loki.write`][loki.write] component.
 You can get the Loki configuration from the Loki **Details** page in the [Grafana Cloud Portal][].
 
 ```alloy
@@ -158,7 +165,7 @@ loki.write "grafana_cloud_logs" {
 
 ### Grafana Tempo
 
-[Grafana Tempo][] is an open source, easy-to-use, scalable distributed tracing backend.
+[Grafana Tempo][] is an open source, scalable distributed tracing backend.
 Tempo can ingest OTLP directly, and you can use the OTLP exporter to send the traces to Tempo.
 
 ```alloy
@@ -169,13 +176,13 @@ otelcol.exporter.otlp "default" {
 }
 ```
 
-To use Tempo with basic-auth, which is required with Grafana Cloud Traces, you must use the [otelcol.auth.basic][] component.
+To use Tempo with basic-auth, which Grafana Cloud Traces requires, you must use the [otelcol.auth.basic][] component.
 You can get the Tempo configuration from the Tempo **Details** page in the [Grafana Cloud Portal][].
 
 ```alloy
-otelcol.exporter.otlp "grafana_cloud_traces" {
+otelcol.exporter.otlphttp "grafana_cloud_traces" {
   client {
-    endpoint = "tempo-us-central1.grafana.net:443"
+    endpoint = "https://tempo-us-central1.grafana.net:443"
     auth     = otelcol.auth.basic.grafana_cloud_traces.handler
   }
 }
@@ -204,7 +211,7 @@ prometheus.remote_write "default" {
 }
 ```
 
-To use Prometheus with basic-auth, which is required with Grafana Cloud Metrics, you must configure the [`prometheus.remote_write`][prometheus.remote_write] component.
+To use Prometheus with basic-auth, which Grafana Cloud Metrics requires, you must configure the [`prometheus.remote_write`][prometheus.remote_write] component.
 You can get the Prometheus configuration from the Prometheus **Details** page in the [Grafana Cloud Portal][].
 
 ```alloy
@@ -227,6 +234,7 @@ prometheus.remote_write "grafana_cloud_metrics" {
 ### Put it all together
 
 Instead of referencing `otelcol.exporter.otlp.default.input` in the output of `otelcol.processor.batch`, you need to reference the three exporters you set up.
+For Grafana Cloud, use `otelcol.exporter.otlphttp` for traces to send data over HTTPS.
 The final configuration becomes:
 
 ```alloy
@@ -250,13 +258,13 @@ otelcol.processor.batch "example" {
   output {
     metrics = [otelcol.exporter.prometheus.grafana_cloud_metrics.input]
     logs    = [otelcol.exporter.loki.grafana_cloud_logs.input]
-    traces  = [otelcol.exporter.otlp.grafana_cloud_traces.input]
+    traces  = [otelcol.exporter.otlphttp.grafana_cloud_traces.input]
   }
 }
 
-otelcol.exporter.otlp "grafana_cloud_traces" {
+otelcol.exporter.otlphttp "grafana_cloud_traces" {
   client {
-    endpoint = "tempo-us-central1.grafana.net:443"
+    endpoint = "https://tempo-us-central1.grafana.net:443"
     auth     = otelcol.auth.basic.grafana_cloud_traces.handler
   }
 }
@@ -316,7 +324,7 @@ ts=2023-05-09T09:37:15.303522Z level=info trace_id=6466516c9e1a556422df7a84c0ade
 ts=2023-05-09T09:37:15.303557Z level=info trace_id=6466516c9e1a556422df7a84c0ade6b0 msg="finished node evaluation" node_id=otelcol.exporter.prometheus.grafana_cloud_metrics duration=30.083µs
 ts=2023-05-09T09:37:15.303611Z component=prometheus.remote_write.grafana_cloud_metrics subcomponent=rw level=info remote_name=7f623a url=https://prometheus-us-central1.grafana.net/api/prom/push msg="Replaying WAL" queue=7f623a
 ts=2023-05-09T09:37:15.303618Z level=info trace_id=6466516c9e1a556422df7a84c0ade6b0 msg="finished node evaluation" node_id=otelcol.auth.basic.grafana_cloud_traces duration=52.5µs
-ts=2023-05-09T09:37:15.303694Z level=info trace_id=6466516c9e1a556422df7a84c0ade6b0 msg="finished node evaluation" node_id=otelcol.exporter.otlp.grafana_cloud_traces duration=70.375µs
+ts=2023-05-09T09:37:15.303694Z level=info trace_id=6466516c9e1a556422df7a84c0ade6b0 msg="finished node evaluation" node_id=otelcol.exporter.otlphttp.grafana_cloud_traces duration=70.375µs
 ts=2023-05-09T09:37:15.303782Z component=otelcol.processor.memory_limiter.default level=info msg="Memory limiter configured" limit_mib=150 spike_limit_mib=30 check_interval=1s
 ts=2023-05-09T09:37:15.303802Z level=info trace_id=6466516c9e1a556422df7a84c0ade6b0 msg="finished node evaluation" node_id=otelcol.processor.memory_limiter.default duration=100.334µs
 ts=2023-05-09T09:37:15.303853Z level=info trace_id=6466516c9e1a556422df7a84c0ade6b0 msg="finished node evaluation" node_id=otelcol.processor.batch.default duration=44.75µs
@@ -345,7 +353,9 @@ You can check the pipeline graphically by visiting <http://localhost:12345/graph
 [otelcol.auth.basic]: ../../reference/components/otelcol/otelcol.auth.basic/
 [otelcol.exporter.loki]: ../../reference/components/otelcol/otelcol.exporter.loki/
 [otelcol.exporter.otlp]: ../../reference/components/otelcol/otelcol.exporter.otlp/
+[otelcol.exporter.otlphttp]: ../../reference/components/otelcol/otelcol.exporter.otlphttp/
 [otelcol.exporter.prometheus]: ../../reference/components/otelcol/otelcol.exporter.prometheus/
 [otelcol.processor.batch]: ../../reference/components/otelcol/otelcol.processor.batch/
+[otelcol.processor.memory_limiter]: ../../reference/components/otelcol/otelcol.processor.memory_limiter/
 [otelcol.receiver.otlp]: ../../reference/components/otelcol/otelcol.receiver.otlp/
 [prometheus.remote_write]: ../../reference/components/prometheus/prometheus.remote_write/