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#!/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: 2021-04-16 17:44:30 +0100 (Fri, 16 Apr 2021)
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#
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# https://github.com/HariSekhon/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
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Lists all Kubernetes nodes for a given nodepool on the current GKE cluster by filtering for the corresponding label
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Requires kubectl to be installed and configured
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If you run this on a non-GKE cluster, will return no nodes as there will be no nodes with the matching labels
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="<node_pool_name>"
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help_usage "$@"
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min_args 1 "$@"
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node_pool="$1"
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kubectl get nodes -l cloud.google.com/gke-nodepool="$node_pool" -o name
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