Frequently Asked Questions

How do I register for PaaS Cloud?

You need an active membership in MetaCentrum. Register or renew at:

https://metavo.metacentrum.cz/cs/application/index.html

What is the PaaS Cloud dashboard URL?

https://chloe.platform.cloud.e-infra.cz/

I can’t log in. What should I check?

1. Verify that your MetaCentrum membership is active and has not expired.
2. Try an incognito/private browser window to rule out cookie issues.
3. Ensure you are selecting the correct identity provider.
4. If the issue persists, contact cloud@metacentrum.cz.

How is PaaS Cloud different from OpenStack IaaS?

PaaS Cloud (Cozystack) provides managed Kubernetes and a marketplace of ready-to-use applications. You do not manage VMs or Kubernetes nodes directly unless you explicitly create VMs in the marketplace. OpenStack IaaS gives you full control over VMs, networks, and images.

How is PaaS Cloud different from KOST?

• Faster startup — Clusters and marketplace apps are provisioned in minutes.
• Self-service scaling — Scale resources without infrastructure tickets.
• Managed lifecycle — The platform team handles patching, upgrades, and node maintenance.
• No node management — You do not need to maintain operating systems on Kubernetes nodes.

My application or VM is stuck in Pending. Why?

Common causes:

• Quota exceeded — Check your tenant quota in the dashboard.
• No available nodes — The platform may be temporarily at capacity; wait or contact support.
• Scheduling constraints — Your workload may request resources (e.g., GPU, specific storage) that are not available in your tenant.

How do I request more resources?

Contact the cloud team at cloud@metacentrum.cz with the tenant name and the additional CPU, memory, or storage you need.

How do I expose my application to the internet?

• For HTTP/HTTPS, create an Ingress resource with a hostname and backend service.
• For TCP traffic, create a LoadBalancer and use the assigned external IP.

See Exposing Services for details.

How do I access logs for my application?

Open the Monitoring section in your tenant and navigate to the Grafana logging view. Filter by application name, pod, or VM.

How do I add a new application to the marketplace?

The marketplace is team-driven:

1. Prepare your requirements and, if possible, a Helm chart or deployment manifest.
2. Submit your proposal to the cloud team.
3. The cloud team reviews, tests, and deploys approved applications.

This ensures quality, security, and long-term support.

What networks can I use?

Each tenant has internal networks for workload communication. For external access, use Ingress or LoadBalancer resources. Contact the cloud team if you need custom VPCs, VPNs, or dedicated subnets.

Where do I report a problem?

Send an email to cloud@metacentrum.cz. Include:

• Your username
• The tenant / project name
• A description of the problem and any error messages
• Timestamps and affected resource names when possible

Can I get API or command-line access?

Advanced users and CI/CD pipelines can use platform API tokens. If you need kubeconfig access to a tenant Kubernetes cluster, contact the cloud team.

My VM is running but I can’t connect via SSH. What should I do?

• Verify the VM has a network with external access or that you are using a jump host.
• Confirm you are using the correct default user for the OS image.
• Ensure your SSH key was added during VM creation.
• Use the dashboard Console to access the VM and inspect network settings or SSH service status.