kube-ps1
Kubernetes prompt info for bash and zsh
...The default prompt assumes you have the kubectl command-line utility installed. Official installation instructions and binaries are available. Blue was used for the default symbol to match the Kubernetes color as closely as possible. Red was chosen as the context name to stand out, and cyan for the namespace. 256 colors are available by specifying the numerical value as the variable argument. Due to the vast ways of customizing the shell, please try the prompt with a minimal configuration before submitting a bug report.