kubectx #

# 安装
brew install kubectx

alias kx=kubectx
alias kn=kubens

# 展示当前可用集群列表
kx
# 选中某集群
kx xxx
# 展示 namespace 列表
kn
# 选中某 ns
kn xxx

# vim ~/.zshrc

kubemerge() {
	if [ $# -eq 0 ]; then
		echo "Usage: kubemerge <path-to-kubeconfig1> [<path-to-kubeconfig2> ...]"
		return 1
	fi

	# Ensure ~/.kube directory exists
	mkdir -p ~/.kube

	# Ensure ~/.kube/config exists and is not empty
	if [ ! -f ~/.kube/config ] || [ ! -s ~/.kube/config ]; then
		touch ~/.kube/config
	fi

	for NEW_KUBECONFIG in "$@"; do
		if [[ "$NEW_KUBECONFIG" == "cache" || "$NEW_KUBECONFIG" == "config_temp" || "$NEW_KUBECONFIG" == "kubectx" ]]; then
			echo "Skipping $NEW_KUBECONFIG"
			continue
		fi

		if [ ! -f "$NEW_KUBECONFIG" ]; then
			echo "File not found: $NEW_KUBECONFIG"
			continue
		fi

		local CONTEXT_NAME=$(basename "$NEW_KUBECONFIG")

		# Check if the context name already exists
		if kubectl config get-contexts -o name | grep -q "^$CONTEXT_NAME$"; then
			echo "Context \"$CONTEXT_NAME\" already exists. Skipping merge and rename."
		else
			# Merge the new kubeconfig with the existing one
			if KUBECONFIG=~/.kube/config:$NEW_KUBECONFIG kubectl config view --merge --flatten >~/.kube/config_temp; then
				mv ~/.kube/config_temp ~/.kube/config
				echo "Merged $NEW_KUBECONFIG successfully."

				# Extract new contexts from the new kubeconfig file
				NEW_CONTEXTS=$(kubectl --kubeconfig="$NEW_KUBECONFIG" config get-contexts -o name)

				for CONTEXT in $NEW_CONTEXTS; do
					kubectl config rename-context "$CONTEXT" "$CONTEXT_NAME"
				done
			else
				echo "Failed to merge $NEW_KUBECONFIG due to invalid format or content."
				return 1
			fi
		fi
	done
}