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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 20:35:30 +0100 (Fri, 16 Apr 2021)
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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
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC1090
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. "$srcdir/lib/kubernetes.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Lists Kubernetes nodes and their taints, one taint per line
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Output Format:
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<node_name> <key>=<value>:<effect>
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Requires kubectl to be installed and configured
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See Also:
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kubectl_node_labels.sh - list nodes and their labels, one label per line
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kubectl taint nodes -l key=value <taint_spec>
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eg.
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kubectl taint nodes -l cloud.google.com/gke-preemptible=true preemptible=true:NoSchedule
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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=""
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num_args 0 "$@"
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help_usage "$@"
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kube_config_isolate
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kubectl get nodes -o json |
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jq -r '
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.items[] |
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{ "name": .metadata.name, "taint": .spec.taints[]? } |
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select(.taint) |
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[ .name, .taint.key + "=" + .taint.value + ":" + .taint.effect ] |
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@tsv
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'
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