Bash script to update local hosts file with Minikube ingresses

minikube-update-hosts.sh

#!/bin/bash
#
# A script to update your /etc/hosts file from minikube ingest records.
#
# Installation
# ------------
# curl -L https://gist.github.com/danielhanold/e7f753740e397e9e7b8a8729f4ced3f0/raw/minikube-update-hosts.sh > /usr/local/bin/minikube-update-hosts
# chmod +x /usr/local/bin/minikube-update-hosts

INGRESSES=$(kubectl --context=minikube --all-namespaces=true get ingress | grep -v NAMESPACE | awk '{ print $2 }' | awk '{ print $1".local"}' | tr '\r\n' ' ')

MINIKUBE_IP=$(minikube ip)

HOSTS_ENTRY="$MINIKUBE_IP $INGRESSES"
HOSTS_ENTRY_HEADER="## minikube-ip-host-entries-start"
HOSTS_ENTRY_FOOTER="## minikube-ip-host-entries-end"

if grep -Fq "${HOSTS_ENTRY_HEADER}" /etc/hosts > /dev/null
then
    echo "Found existing host entry."
    echo "Update Minikube IP to ${MINIKUBE_IP} for all Minikube ingresses:"
    echo "${INGRESSES}"
    sudo sed -i '' "s/.*192\.168\.99.*/${HOSTS_ENTRY}/g" /etc/hosts
else
    echo "Modifying local hosts file: "
    echo "" | sudo tee -a /etc/hosts
    echo "${HOSTS_ENTRY_HEADER}" | sudo tee -a /etc/hosts
    echo "$HOSTS_ENTRY" | sudo tee -a /etc/hosts
    echo "${HOSTS_ENTRY_FOOTER}" | sudo tee -a /etc/hosts
fi