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63 lines
2.1 KiB
Bash
63 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-12-11 00:36:09 +0000 (Fri, 11 Dec 2020)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# 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
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090,SC1091
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. "$srcdir/lib/aws.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Generates kubectl credentials and contexts for all AWS EKS clusters in the current AWS region
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This is fast way to get set up in new environments, or even just add any new EKS clusters to your existing \$HOME/.kube/config
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Requires AWS CLI to be set up and configured, as well as jq
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WARNING: AWS CLI switches your kubectl context to the last cluster you get credentials for. This can lead to race conditions between other kubectl scripts if they have not forked and isolated their \$KUBECONFIG. Do not run this while other naive kubectl commands and scripts are running otherwise those non-isolated commands may fire against the wrong kubernetes cluster. See kubectl.sh for more info
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Can supply arguments to be passed to AWS CLI to set things like region eg.
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${0##*/} --region eu-west-2
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$usage_aws_cli_required
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See also:
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kubectl.sh - isolates kube config to fix kubectl commands to the given cluster to prevent race conditions from applying kubectl changes to the wrong cluster
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aws_kubectl.sh - same as above but also gets the credential
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gke_kube_creds.sh - same as this script but for GCP GKE clusters
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="[<aws_cli_options>]"
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help_usage "$@"
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export AWS_DEFAULT_OUTPUT=json
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aws eks list-clusters "$@" |
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jq -r '.clusters[]' |
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while read -r cluster; do
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echo "Getting AWS EKS credentials for cluster '$cluster':"
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aws eks update-kubeconfig --name "$cluster" "$@"
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echo
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done
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