aws-list-lbs.sh

#!/bin/bash

# Parse arguments:
VERBOSE=0
while getopts ":r:p:v" opt; do
  case $opt in
    r) REGION="--region $OPTARG";;
    p) PROFILE="--profile $OPTARG";;
    v) VERBOSE=$(( VERBOSE + 1 ));;
    :) echo "Option -$OPTARG requires an argument." >&2; exit 1;;
    \?) echo "Invalid option: -$OPTARG" >&2;;
  esac
done
shift $((OPTIND-1))

if ! which jq > /dev/null 2>&1; then echo "The 'jq' command is not installed, aborting." >&2; exit 1; fi



if [[ "$VERBOSE" == 0 ]]; then
  aws $PROFILE $REGION elb describe-load-balancers | jq -r '.LoadBalancerDescriptions[].LoadBalancerName' | sort
  exit $?
fi

if [[ "$VERBOSE" == 2 ]]; then
  aws $PROFILE $REGION elb describe-load-balancers
  exit $?
fi

if [[ "$VERBOSE" == 1 ]]; then
  aws $PROFILE $REGION elb describe-load-balancers \
  | jq -r '
     .LoadBalancerDescriptions[]
     | .DNSName as $dns
     | .LoadBalancerName as $name
     | .ListenerDescriptions[]
     | (if (.Listener.Protocol == "HTTP") then "http://\($dns)/" else "https://\($dns)" end) as $url
     | "\($name) \($url)"
   '
  exit $?

fi