DevOps Playgrounds
Remote sandbox environments for learning and experimenting without worrying about setup and cleanup. Run anything on vanilla Linux VMs, get a fresh Docker host or Kubernetes cluster in seconds, publish ports, collaborate via sharing terminal sessions, SSH from the command line, and more.
Community Collection
Playgrounds contributed by the community members sharing their knowledge and expertise.
Podman with Docker Compose
Podman Playground with Docker Compose for better Developer Experience.
USE Practice
Practice Linux USE-method investigations against randomized host-level scenarios. Run `use-practice` to see what the options are, and put some load on the system to practice your USE methodology investigation skills. 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.
SilverStack Dev Machine
A fully provisioned DevOps workstation on Ubuntu 24.04 - every tool pre-installed, every alias pre-wired, zero setup required.
SilverStack Nexus Server
Production-grade Nexus Repository Manager 3 Community Edition on Ubuntu 24.04 - systemd-booted, Cloudflare-ready, Nginx-proxied, zero setup required.
SilverStack SonarQube Server
Production-grade SonarQube 26.2 CE (LTA) on Ubuntu 24.04 - systemd-booted, PostgreSQL-backed, Nginx-proxied, Cloudflare-ready, zero setup required.
SilverStack Jenkins Server
Production-grade Jenkins LTS on Ubuntu 24.04 - systemd-booted, Nginx-proxied, Cloudflare-ready, zero setup required.
SilverStack CI/CD Stack
A fully composed 4-node CI/CD platform - Jenkins, SonarQube, Nexus, and a Dev Machine, all running in a single Flexbox playground on a shared private network. Each service is Nginx-proxied and Cloudflare-ready. Zero setup required.
Cloud Tracing Lab
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.
Log Parser
A playground that generates one log parsing activity at a time, and regenerates a new one when you complete each activity. It uses authentic log formats such as nginx access logs and syslog entries to simulate real parsing needs. The operator avoids repeats until it has exhausted the full activity list, then starts a new randomized cycle. Github: https://github.com/lpmi-13/logparser-lab-operator
Full Ubuntu Desktop Experience in web
Access your remote server’s full desktop directly from the browser using Apache Guacamole, eliminating the need for a local RDP client 💻🌐
OWASP K8s Vulnerable Cluster
This playground presents a k3s cluster that has randomized security vulnerabilities injected based on the OWASP Kubernetes Top 10 list for 2025. Run a scan to find what's wrong, then fix it and get another random vulnerability automatically injected. Play as long as you like!
Coder Development Environment
A fully configured Coder instance running on Ubuntu 24.04 with Docker support. Uses a custom OCI image with pre-installed Coder and Docker.
PostgreSQL 18.4 on Ubuntu 26.04 (customized)
PostgreSQL 18.4 Playground with Ubuntu 24.04 OS (customized)
