Bash custom function and profile autocomplete to list available zones for a given profile.

list.available.zones.zsh

# =============================================================================================
# Bash custom function and profile autocomplete to list available zones for a given profile.
# Jaziel Lopez jazlopez @ github.com
# 2022
# =============================================================================================

# --
# list aws profiles from default aws credentials file
# --
function _completion_aws_profile_names_(){
  grep -Eo "\[.*\]" $HOME/.aws/credentials | sed 's/[][]//g'
}

function _list_available_zones_() {
  clear
  echo "[INFO] usage: list-available-zones [aws_profile]"
  echo "\tif argument [aws_profile] not provided it uses default"
  echo "========================================================================"
  local profile="default"

  [[ ! -z "${AWS_PROFILE}" ]] && profile="${AWS_PROFILE}"
  [[ ! -z "${1}" ]] && profile="${1}"
	
  echo "[INFO] list AWS available zones for profile $profile"
  aws ec2 describe-availability-zones --profile "${profile}" | jq -r '.AvailabilityZones | .[] | .ZoneName'
}

complete -F _completion_aws_profile_names_ _list_available_zones_

alias list-available-zones=_list_available_zones_