Merge pull request #61319 from skrthomas/OSDOCS-5437

OSDOCS-5437: Adding Network Observability architecture diagrams/context

Author: skrthomas

images/network-observability-arch-kafka-FLP.png

@@ -0,0 +1,17 @@
+//Module included in the following assemblies:
+//
+// network_observability/understanding-network-observability.adoc
+
+:_content-type: CONCEPT
+[id="network-observability-architecture_{context}"]
+= Network Observablity Operator architecture
+
+The Network Observability Operator provides the `FlowCollector` API, which is instantiated at installation and configured to reconcile the `eBPF agent`, the `flowlogs-pipeline`, and the `netobserv-plugin` components. Only a single `FlowCollector` per cluster is supported.
+
+The `eBPF agent` runs on each cluster node with some privileges to collect network flows. The `flowlogs-pipeline` receives the network flows data and enriches the data with Kubernetes identifiers. If you are using Loki, the `flowlogs-pipeline` sends flow logs data to Loki for storing and indexing. The `netobserv-plugin`, which is a dynamic {product-title} web console plugin, queries Loki to fetch network flows data. Cluster-admins can view the the data in the web console.
+
+image::network-observability-architecture.png[Network Observability eBPF export architecture]
+
+If you are using the Kafka option, the eBPF agent sends the network flow data to Kafka, and the `flowlogs-pipeline` reads from the Kafka topic before sending to Loki, as shown in the following diagram.
+
+image::network-observability-arch-kafka-FLP.png[Network Observability using Kafka]

images/network-observability-architecture.png

@@ -9,5 +9,5 @@ toc::[]
 Network Observability is an OpenShift operator that deploys a monitoring pipeline to collect and enrich network traffic flows that are produced by the Network Observability eBPF agent.
 
 include::modules/nw-network-observability-operator.adoc[leveloffset=+1]
-
+include::modules/network-observability-architecture.adoc[leveloffset=+1]
 include::modules/nw-view-status-configuration-network-observability-operator.adoc[leveloffset=+1]