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68 lines
1.5 KiB
Bash
68 lines
1.5 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: 2021-04-19 10:28:40 +0100 (Mon, 19 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 "${DEBUG:-}" ] && set -x
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srcdir="$(dirname "${BASH_SOURCE[0]}")"
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# shellcheck disable=SC1090
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC1090
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. "$srcdir/lib/kubernetes.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Lists Kubernetes nodes and their labels, one per line (more convenient for shell piping)
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Output Format:
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<node_name> <label_key>=<label_value>
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<node_name> <label_key2>=<label_value2>
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<node_name2> <label_key>=<label_value>
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...
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This format is much easier to read and work with while scripting than the single line monstrocity returned by:
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kubectl get nodes --show-labels
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Requires kubectl to be installed and configured
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If you only want to see a a list of unique available labels:
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${0##*/} | awk '{print \$2}' | sort -u
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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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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, "label": .metadata.labels | to_entries[] } |
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select(.label) |
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[ .name, .label.key + "=" + .label.value ] |
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@tsv
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' |
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sort -k1,2
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