Monitoring Microservices applications on OpenShift
summary
Demo shows Hawkular collecting container metrics from an OpenShift developer cluster (oc cluster up --metrics=true) plus custom app metrics via an agent deployed per node using ConfigMaps, scraping JMX and Prometheus endpoints and storing data in Hawkular Metrics. APM implements OpenTracing and reconstructs full business transactions (example: 122 aggregated orders) across four microservices, visualized in Grafana and the APM UI. Demo also wires alerts via REST and outlines exposing app metrics to the Horizontal Pod Autoscaler for metric-driven scaling (work in progress).
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