Merge branch 'main' into radar-2021-01-01

radar/2021-01-01/fluentd.md

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+---
+title:      "Fluentd"
+ring:       assess
+quadrant:   tools
+
+---
+**Fluentd** is a great tool to gather logs, transform them into any required format and distribute them to any logging backend.
+
+At AOE we use fluentd in different contexts, but mostly to gather logs from kubernetes clusters into data backends like Elasticsearch.

radar/2021-01-01/service-mesh.md

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+---
+title:      "Service Mesh"
+ring:       assess
+quadrant:   platforms-and-aoe-services
+
+---
+**Service Mesh** is a solution which makes service to service communication more comfortable and more secure in large microservice architectures.
+It decouples the routing part from the microservices which allows a service mesh implementation to offer features like:
+- Service Discovery (canary routing, a-b testing, etc.)
+- Resilience (circuit breaking, timeouts, etc.)
+- Observability (route metrics, traffic logging, etc.)
+- End-to-end encryption (mTLS)
+
+service mesh implementations:
+- [Istio](https://istio.io/)
+- [Open Service Mesh](https://openservicemesh.io/)
+- [Kuma](https://kuma.io/)
+- and many more...
+
+At AOE we are using service meshes in multiple projects and are assessing best-practices and service mesh implementations.