Remote sandbox environments for learning and experimentation — without setup or cleanup. Launch fresh Linux VMs, Docker hosts, or Kubernetes clusters in seconds, publish ports, share terminal sessions, and connect over SSH.
A 3-in-1 playground (Kubernetes, Docker, and vanilla Linux hosts) to experiment with Tetragon - an eBPF-powered security observability tool.
Explore live host CPU/Memory/Disk/Network telemetry as an interactive Doom diagnostics lab. All the elements in the game react to system signals (eg, the cpu cores glow red when there's high utilization).
Jaeger's HotROD demo app pre-deployed on a 3-node K3s cluster, wired to a Jaeger v2 all-in-one over OTLP. Click a customer, then read the trace.
A snapshot-backed three-node k3s cluster with the complete OpenTelemetry Demo, including Jaeger and Grafana.
Practice Linux USE-method investigations against randomized host-level scenarios. It already has the [use-tool](https://github.com/lpmi-13/use-tool) installed, so you can begin with that, or just run a free-form investigation.
Diagnose realistic distributed tracing scenarios in a preloaded k3s VM, for users to get more familiar with traces in general and jaeger-ui specifically. There's guided investigation through distributed traces, along with identification of slow spans and comparing two traces to identify what changed to make it slow down.
A multi-node VictoriaMetrics cluster with vminsert, vmselect, and vmstorage components.
This is a hands-on ELK (Elasticsearch, Logstash, Kibana) playground enhanced with Docker and Beats to simulate real-world log and observability scenarios. It includes an Elastic Cluster (es-node-01 and es-node-02) for storing and indexing data, a test-node-03 running Docker with Filebeat, Metricbeat, and Heartbeat for log and metric collection, and kibana-node-04 for visualizing everything via Kibana UI—perfect for learning and experimentation.