DevOps-Bash-tools/aws_kube_creds.sh

#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: 2020-12-11 00:36:09 +0000 (Fri, 11 Dec 2020)
#
#  https://github.com/HariSekhon/bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x
srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# shellcheck disable=SC1090
. "$srcdir/lib/utils.sh"

# shellcheck disable=SC2034,SC2154
usage_description="
Generates kubectl credentials and contexts for all AWS EKS clusters in the current AWS region

This is fast way to get set up in new environments, or even just add any new EKS clusters to your existing \$HOME/.kube/config

Requires AWS CLI to be set up and configured, as well as jq

Can supply arguments to be passed to AWS CLI to set things like region eg.

    ${0##*/} --region us-west-1


See also:

    gke_kube_creds.sh  - same as this script but for GCP GKE clusters
    kubectl.sh         - isolates kube config to fix kubectl commands to the given cluster to prevent race conditions from applying kubectl changes to the wrong cluster
"

# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_args="[<aws_cli_opts>]"

help_usage "$@"

aws eks list-clusters "$@" |
jq -r '.clusters[]' |
while read -r cluster; do
    echo "Getting AWS EKS credentials for cluster '$cluster':"
    aws eks update-kubeconfig --name "$cluster" "$@"
    echo
done