Using kube-ps1 with P9K

.zshrc

# Enable the kube-ps1 oh-my-zsh plugin
plugins = (
  git
  kube-ps1
)

# The output of the kube_ps1 function is text, so it can be used
# directly as a custom p9k segment
POWERLEVEL9K_CUSTOM_KUBE_PS1='kube_ps1'

# Include the new custom segment in prompt_elements
POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(os_icon context dir custom_kube_ps1 vcs)

Colorless alternative:

zsh_custom_kube_ps1(){
  echo -n "$(_kube_ps1_symbol)$KUBE_PS1_SEPERATOR$KUBE_PS1_CONTEXT$KUBE_PS1_DIVIDER$KUBE_PS1_NAMESPACE"
}
POWERLEVEL9K_CUSTOM_KUBE_PS1='zsh_custom_kube_ps1'