The World’s Simplest Kubernetes Dashboard (k1s): Overview, Installation, Usage, and Implementation

The article presents k1s, a Bash script that provides a lightweight, real‑time Kubernetes dashboard capable of displaying any resource type (Pods, Deployments, ReplicaSets, etc.) across a single namespace or all namespaces.

Installation can be performed on macOS with Homebrew:

$ brew install weibeld/core/k1s

or by downloading the script directly:

{ wget https://raw.githubusercontent.com/weibeld/k1s/master/k1s chmod +x k1s mv k1s /usr/local/bin }

k1s depends on jq , watch , curl , and kubectl , which must be present on the host.

Usage follows the simple syntax:

$ k1s [namespace] [resource-type]

Both arguments are optional; the default namespace is default and the default resource type is pods . Use - as the namespace to watch across all namespaces. Resource types can be specified in any accepted form (e.g., deployments , deployment , deploy ).

Implementation is explained line‑by‑line. The script begins with a version flag, checks for required binaries, parses command‑line arguments, and defines two helper functions to emit ANSI colour codes:

c() { echo -e "\033[${1}m"; } cc() { echo -e "\033[${1};1m"; }

A loading indicator runs in the background until initialization completes. The script then uses kubectl get with -v=6 to discover the exact API path for the requested resource, validates the request, and starts kubectl proxy on a random local port (captured via file descriptor 3).

It creates a temporary status file, writes a coloured header containing the k1s logo, namespace, and resource type, and then issues a curl -N watch request to the API endpoint. Each JSON event is processed with jq to extract the resource name and type‑specific information (e.g., Pod phase, readiness, replica counts). Depending on the event type ( ADDED , MODIFIED , DELETED ), the script updates the status file accordingly.

Finally, watch -ctn 0.1 cat $file refreshes the terminal view every 0.1 seconds, giving the impression of a real‑time full‑screen dashboard.

Discussion and Conclusion acknowledge limitations such as the inability to scroll when the output exceeds the terminal height and the reliance on external tool output formats. The author suggests that a more feature‑rich implementation could be written in Go, but emphasizes that k1s’s simplicity makes it an excellent educational and experimental tool.