Challenge on
Hello CFML
Create a CFML page at /opt/coldfusion2025/cfusion/wwwroot/hello.cfm that outputs "Hello, ColdFusion!" and the current server date. The page must return HTTP 200 and contain the string "Hello, ColdFusion!".
Challenges by Alejandro Mercado
Focused, hands-on DevOps and server-side problems with hints, feedback, and automated solution checks.
Alejandro Mercado
DevOps & K8S Consultant, Technical Content Writer AWS Community Builder, IBM Champion
Challenge on ,
Aggregate Cluster Logs with Loki and Alloy
Build the logging pillar on a Rancher cluster: install Grafana Loki to store logs and Grafana Alloy to ship them from every node, then wire Loki into the Grafana you already run for metrics and prove a LogQL query returns your cluster's logs. This is the same pipeline Rancher's Logging app packages.
Challenge on
Rate-Limit a Route with a Kong Plugin
Kong is already installed and routing a workload. Turn it from a plain ingress controller into an API gateway: attach a rate-limiting plugin to the route so the gateway rejects requests over the limit with HTTP 429.
Challenge on
Install Kong from the Rancher Catalog and Route a Workload
Add the Kong Helm repository to Rancher's Apps, install the Kong ingress controller, and route a workload through the Kong gateway. This is the everyday platform-app workflow: add a repo, install a tool, and wire your workloads into it.
Challenge on
Install Kong from the Rancher Catalog and Route a Workload
Add the Kong Helm repository to Rancher's Apps, install the Kong ingress controller, and route a workload through the Kong gateway. This is the everyday platform-app workflow: add a repo, install a tool, and wire your workloads into it.
Challenge on
Back Up the Rancher Management State
Protect a Rancher installation against disaster. The Rancher Backup operator and a ResourceSet are already in place - create a Backup and confirm the operator produces a completed archive of the management state, the first step of any real recovery plan.
Challenge on ,
Ship a Change Through Fleet and a Git Server
Run the continuous delivery loop against a self-hosted Gitea Git server: point Fleet at a repository, then commit and push a manifest change and watch Fleet reconcile it onto the cluster. This is the GitOps contract Rancher Fleet enforces - the cluster follows Git, with no manual kubectl apply.
Challenge on ,
Isolate a Team with Quotas and RBAC
Carve out a namespace for a team, cap its resource consumption with a ResourceQuota, and grant a user scoped read-only access with a Role and RoleBinding. These are the native Kubernetes primitives Rancher Projects and roles build on.
Challenge on ,
Create a Namespace Through the Rancher UI
Prove you can navigate Rancher's Cluster Explorer by creating a namespace called rancher-explorer in the local cluster - using the UI, not the command line. A quick, hands-on check that you found your way around the dashboard.