The following short lab presents a quick way to enable Istio access logging and observe it using Azure monitor. Similar configuration can also be applied on an individual namespace, or to an individual workload, to control logging at a fine grained level. The recommended way to enable access logging is using the Telemetry API, see the file named access-logging.yaml in this folder which enables mesh wide access logging using envoy as log provider. The standard output of Envoy’s containers can then be printed by the kubectl logs command. Envoy proxies print access information to their standard output. The simplest kind of Istio logging is Envoy’s access logging. This means stdout and stderr is automatically collected by insights. AKS comes built in with container logging monitoring when Azure AKS monitoring is enabled on the cluster. Logging is one of the most important and traditional observability concerns. The recommendation is to use the out of the box Grafana-Istio dashboards and in the case of having a Grafana instance is not something feasible, then analyze the gap and create custom Azure monitor dashboards. ![]() This as expected, could require a significant amount of time to accomplish. The recommendation in this case is to use Grafana’s dashboards instead of trying to recreate the same on Azure Monitoring, which could be done by “reverse engineering” the dashboards and importing the same data sources used into Azure Monitor. When it comes to Istio concerns, Grafana being an open source project provides a set of loaded dashboards customized for Istio ( ), including: ![]() Azure Monitor has a similar idea implemented under the Application Insights umbrella, where you can centralize metrics and dashboards from different data sources into one logical entity.īoth Grafana and Insights provide powerful features for diagnostics, alerting and failure management under a “single pane of glass” having Azure Monitor telemetry features a much larger footprint than Grafana. Grafana is an open source analytics and interactive visualization web application for centralized dashboards. The recommendation in this case is if you are going to use Istio and need a visual management console, then just use Kiali as there are no other “turn-around” consoles to use for the same purpose and creating one on Azure Monitor could be a significant endeavor. There is a discussion taking place to use Kiali for OSM which could open the door for other providers to offer a standardized way for service mesh management ( ). Also at the time of writing, Azure Monitor doesn’t include a Kiali-like console for Istio service mesh management. Kiali is the management console for Istio service mesh, it could be installed as an add-on and it could be a trusted part of your production environment.Īt the time of writing, Kiali is the default and only visualization tool for Istio and it could be installed on a production setting ( ).
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