Improved way to get KUBECONFIG

#!/bin/bash

# Store KUBECONFIG if it's set

export DEFAULT_KUBECONFIG=$KUBECONFIG

if [ -z "$DEFAULT_KUBECONFIG" ]; then

    echo "No default value loaded on KUBECONFIG variable."

else

    echo "KUBECONFIG has a default value $DEFAULT_KUBECONFIG. If variables in this file doesn't have a custom value this default will be used."

fi

# Use custom kubeconfig. If you set here the path to a kubeconfig file it will be used in installation/uninstallation scripts

export KUBECONFIG=""

if [ -z "$KUBECONFIG" ]; then

export CUSTOM_KUBECONFIG=""

if [ -z "$CUSTOM_KUBECONFIG" ]; then

    echo "The variable KUBECONFIG is empty. Using default k8s environment..."

    if [ -n "$DEFAULT_KUBECONFIG" ]; then

        KUBECONFIG="--kubeconfig $DEFAULT_KUBECONFIG"

        echo "Using DEFAULT_KUBECONFIG $DEFAULT_KUBECONFIG"

    if [ -n "$KUBECONFIG" ]; then

        CUSTOM_KUBECONFIG="--kubeconfig $KUBECONFIG"

        echo "Using DEFAULT_KUBECONFIG $CUSTOM_KUBECONFIG"

    fi

else

    KUBECONFIG="--kubeconfig $KUBECONFIG"

    echo "The variable KUBECONFIG is not empty. Its value is: $KUBECONFIG"

    CUSTOM_KUBECONFIG="--kubeconfig $CUSTOM_KUBECONFIG"

    echo "The variable CUSTOM_KUBECONFIG is not empty. Its value is: $CUSTOM_KUBECONFIG"

fi

# timestap to use along scripts

    K8S_IP=$(kubectl $KUBECONFIG get svc -A | grep ingress-nginx-controller | awk '/NodePort/{ print $4 }')

    echo "K8S_IP value will be $K8S_IP"

fi

export KUBECONFIG=$CUSTOM_KUBECONFIG

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