krust

krust is a latency-first Kubernetes terminal navigator for operators managing many clusters and high resource volume.

It focuses on fast navigation, inspect, logs, and safe actions, with high k9s command/keybinding compatibility for Kubernetes-native workflows.

Goal and Approach

Goal:

• stay responsive for power users across many contexts and large object sets
• provide Kubernetes-native terminal workflows without plugin complexity

Approach:

• lazy scope activation instead of watch-everything startup
• bounded state/update pipelines to avoid UI jitter under churn
• keyboard-first interaction with high k9s compatibility
• explicit RBAC/auth error handling and guarded mutation paths

Install

Homebrew

brew tap ErfanY/krust
brew install krust

Prebuilt binaries

curl -L -o krust.tar.gz \
  https://github.com/ErfanY/krust/releases/latest/download/krust-x86_64-unknown-linux-gnu.tar.gz

tar -xzf krust.tar.gz
sudo install krust-x86_64-unknown-linux-gnu/krust /usr/local/bin/krust

From source

cargo install --git https://github.com/ErfanY/krust.git --locked krust

Quick Start

krust
krust --context <context-name>
krust --namespace <namespace>
krust --readonly

Compatibility

• OS: macOS, Linux
• Kubernetes: 1.33+
• Auth: kubeconfig + exec auth providers

Documentation

• Operator Guide
• Contributor Guide
• Architecture
• Performance Guide
• Contributing

Scope

Available now:

• Multi-context workflow with fast context switching and namespace scoping (all namespace supported)
• Kubernetes resource browser for: pods, deployments, replicasets, statefulsets, daemonsets, services, ingresses, configmaps, secrets, jobs, cronjobs, pvc/pv, nodes, namespaces, events, serviceaccounts, roles/rolebindings/clusterroles/clusterrolebindings, networkpolicies, hpa, pdb
• Describe/detail pane with YAML/JSON toggle, syntax highlighting, vim-style search, and wrap/horizontal scroll modes
• Logs pane with stream, tail, pause, source filtering, container selection, and multi-pod fan-in for deployment/replicaset views
• Secret decode view in YAML, with edit/apply support and automatic re-encode on apply
• Guarded mutation flows (for example delete) plus read-only mode (--readonly)
• k9s-style command and keybinding compatibility for Kubernetes-native workflows (plugin commands excluded)
• Performance-oriented behavior for large clusters: lazy watch activation, bounded update pipelines, render invalidation, and RBAC-aware watch suppression

Explicitly out of scope:

• Plugin subsystem
• Non-Kubernetes plugin commands

License

MIT. See LICENSE.