Setup

Diagnose and fix installation problems with Fission and the underlying Kubernetes cluster.

These guides cover problems you may hit while installing or upgrading Fission, and problems that come from the underlying Kubernetes cluster rather than from Fission itself.

Troubleshoot your Fission setup — Helm install and upgrade issues, CRD upgrades, and admission webhook certificate problems.
Troubleshoot your Kubernetes cluster — in-cluster DNS, kubeconfig, persistent volumes, and autoscaling prerequisites.

Kubernetes

Diagnose cluster-level problems that affect Fission: DNS, kubeconfig, persistent volumes, and autoscaling.

Troubleshoot Fission Setup

Diagnose and fix problems installing or upgrading Fission: Helm, CRDs, and the admission webhook.

Last modified June 6, 2026: Docs overhaul for Fission v1.25.0: factual refresh, new IA, Mermaid diagrams (#288) (84b46c3)