Config Helper for kubectl

kubeconfig_merger.sh

#!/usr/bin/bash

# Intended for use in your bashrc config

function reload-kubeconfigs {
  # Combine kubeconfigs into ':'-delimited list as KUBECONFIG, which will be auto-merged by kubectl
  local default="${HOME}/.kube/config"
  local config_dir="${HOME}/.kube/config.d"
  local config_paths=""
  [[ ! -d "$config_dir" ]] && mkdir -p "$config_dir"
  function __join { local IFS="$1"; shift; echo "$*"; }
  if [[ -n "$(ls "$config_dir")" ]]; then
    local configs=( "${config_dir}/"* )
    config_paths="$(__join : "${configs[@]}")"
  fi
  if [[ -f "$default" ]]; then
    config_paths="${default}:${config_paths}"
  fi
  export KUBECONFIG="$config_paths"
}

reload-kubeconfigs