Challenge, Medium, on
Build and Inspect a Container Image With Docker
Build a container image from a Dockerfile and use Docker commands to inspect its size and layer composition.
Submissions: 2/2
Challenges
Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.
Official Collection
Challenges crafted by iximiuz Labs to help you master DevOps and Server Side topics.
Build and Compile Applications in Dockerfiles
Practice building and compiling applications inside their Dockerfiles by containerizing a Go backend and a TypeScript frontend.
Submissions: 7/23
Challenge, Medium, on
Make a Container Restart Automatically After Docker Host Reboot
Learn how to configure a Docker host and its containers to automatically restart when the server reboots or the Docker daemon restarts.
Submissions: 56/78
Challenge, Medium, on
Make a Container Restart Automatically After Podman Host Reboot
Unlike Docker, Podman is daemonless and requires some extra systemd help to monitor and restart containers. Learn how to configure a Podman host and its containers to automatically restart after a server reboot.
Submissions: 12/19
Community Collection
Challenges contributed by the community members sharing their knowledge and expertise.
Challenge, Medium, on
Schedule Pods Using Required Pod Affinity
by Omkar Shelke
A Kubernetes cluster has an existing database Deployment running. Configure a new web Deployment to schedule its pods only on nodes where the database pods are already running using required pod affinity.
Submissions: 8/9
AWK Mastery: From Zero to Hero
3-phase AWK challenge on realistic data in /home/laborant/awk_challenge/. Fundamentals: columns, delimiters, formatting. Logic & regex: filters, anchors, conditions, math. Sysadmin: logs, CSVs, metrics, counts, reports. Data lives under /home/laborant/awk_challenge/ (logs/access, data/hr, sys/metrics) and outputs are written to /home/laborant/ files.
Submissions: 17/42
Challenge, Medium, on
Schedule Pods Using Taints, Tolerations and Node Affinity
by Omkar Shelke
A Kubernetes cluster has tainted nodes to restrict pod scheduling. Configure a Deployment to schedule pods exclusively on a specific tainted node using both tolerations and required node affinity.
Submissions: 7/8
Challenge, Medium, on
Troubleshoot Pod Manifest Deployment Failure Due to Resource Constraints
by Omkar Shelke
Debug and fix a Pod that fails to deploy due to resource constraint violations in a namespace with ResourceQuota and LimitRange policies.
Submissions: 6/6