Testing DevSecOps Tools Locally and Configuring Cloud Labs on Your Machine
Introduction
Preparing for a DevSecOps certification often means juggling multiple environments—cloud‑based labs, local virtual machines, and the official training images. You may wonder whether you can practice the same tools on your own workstation, replicate the cloud labs locally, or use the hysnsec Docker images during the exam. This article consolidates the official guidance into a clear, step‑by‑step guide so you can train efficiently, stay compliant with exam rules, and avoid unnecessary roadblocks.
1. Testing Lab Tools in a Local Environment
1.1 Is it allowed?
Yes. You are free to install and run the tools provided in the training labs on your personal computer as long as you can achieve the same objectives defined for each exam challenge. The certification body does not require you to use the cloud‑hosted instance; the focus is on demonstrating the required tactics and techniques.
1.2 Why practice locally?
- Faster iteration – No latency from a remote lab.
- Customizable setup – Add plugins, scripts, or extra utilities that help you learn.
- Exam readiness – The practice exam in the course mirrors the real test; reproducing it locally reinforces the workflow.
1.3 Recommended local practice workflow
- Identify the challenge goal (e.g., “enumerate containers”, “extract a secret from a Kubernetes pod”).
- Choose a compatible tool (K9s, kubectl, Trivy, etc.).
- Run the tool against a local test environment (Docker Desktop, Minikube, Kind, etc.).
- Validate the output matches the expected result from the lab instructions.
2. Replicating Cloud Labs on Your Machine
2.1 What the Cloud Labs provide
The hosted labs come pre‑installed with:
- Ubuntu 20.04 LTS (or later) base OS
- Required DevSecOps utilities (e.g.,
kubectl,helm,docker,trivy,gitleaks) - Pre‑configured network settings and vulnerable images for exploitation
Because everything is pre‑wired, you can focus on technique rather than environment setup.
2.2 Why a local replica is challenging
- Dependency management – Matching exact version numbers across tools can be time‑consuming.
- Network topology – Cloud labs simulate multi‑node clusters, which may require additional configuration locally.
- Support limitations – The training team does not officially support custom local installations.
2.3 Practical steps to build a local lab (if you still want to)
| Step | Action | Details |
|---|---|---|
| 1 | Install a virtualization platform | VirtualBox (free) or VMware Workstation Player. |
| 2 | Create an Ubuntu VM | Use Ubuntu 20.04 LTS (or the version mentioned in the course). Allocate at least 4 GB RAM and 2 CPU cores. |
| 3 | Install core tools | bash sudo apt update && sudo apt install -y docker.io kubectl helm git |
| 4 | Pull the training images | bash docker pull hysnsec/lab‑image:latest (or any other image you plan to use). |
| 5 | Set up a local Kubernetes cluster (optional) | Use Kind or Minikube: kind create cluster or minikube start. |
| 6 | Verify connectivity | Run kubectl get nodes and ensure the vulnerable pods are reachable. |
| 7 | Replicate lab scenarios | Follow the lab guide step‑by‑step, substituting cloud URLs with your local IPs. |
Tip: Keep a snapshot of the clean VM state. If a lab corrupts the environment, you can revert instantly.
3. Using the hysnsec Images
3.1 Are you required to use the official images?
No. The exam does not mandate the use of the hysnsec Docker images. You may work with:
- The official
hysnsecimages (recommended for consistency). - Any other Docker or VM image that contains the same vulnerable components.
3.2 When to prefer hysnsec images
- Alignment with course material – The labs and practice exam reference specific file paths and configurations present in the
hysnsecimages. - Reduced troubleshooting – Using the same image eliminates version mismatches that could cause unexpected errors.
3.3 Example: Scanning a vulnerable container
# Pull the image (if not already present)
docker pull hysnsec/vuln‑app:1.2
# Run the container
docker run -d --name vuln-app hysnsec/vuln‑app:1.2
# Scan with Trivy
trivy image hysnsec/vuln‑app:1.2
The output should list known CVEs, matching the lab’s expected results.
4. Tips & Best Practices
- Document your setup – Keep a Markdown file with all commands you run; it becomes a personal cheat‑sheet for the exam.
- Version lock – Use
apt-mark hold <package>or Docker tags to freeze tool versions. - Network isolation – Run vulnerable containers on a separate Docker network to avoid accidental exposure.
- Practice time‑boxing – Simulate exam conditions by giving yourself a strict time limit for each challenge.
- Backup your work – Export your Docker images or VM snapshots to an external drive before major changes.
5. Common Questions
| Question | Answer |
|---|---|
| Can I use the practice exam as my only study material? | Yes, the practice exam mirrors the real test objectives. Combine it with hands‑on labs for deeper understanding. |
| Do I need to reinstall tools before every exam attempt? | Not necessary, but ensure your environment matches the tool versions listed in the exam guide. |
| What if my local VM crashes during a lab? | Restore from the snapshot you created in Step 7 of the “Replicating Cloud Labs” table. |
| Is it okay to use other Linux distributions (e.g., Fedora)? | Technically possible, but you may encounter missing dependencies. Ubuntu is the safest choice. |
Can I mix hysnsec images with my own custom images? |
Absolutely, as long as the combined environment lets you meet the challenge objectives. |
6. Conclusion
Testing DevSecOps tools locally and, if desired, recreating cloud labs on your own machine gives you flexibility, speed, and deeper insight into the security techniques you’ll need for certification. While the official cloud labs are fully equipped and supported, a well‑configured Ubuntu VM (or Docker environment) paired with the hysnsec images can provide an equally effective practice ground. Follow the step‑by‑step guide, keep your environment tidy, and you’ll be well‑prepared to ace the exam. Happy hacking!