Madagascar
/
scripts
/
cluster-nodes.sh
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77 lines
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1.764kb
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#!/bin/bash |
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set -euo pipefail |
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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ROOT_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
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CONFIG_PATH="${ROOT_DIR}/cluster-context/madagascar.json"
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CLUSTER_NAME="madagascar" |
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FORMAT="ip" |
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usage() {
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cat <<EOF |
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Usage: $0 [--cluster <name>] [--format ip|name|name=ip] |
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Reads node information from cluster-context/madagascar.json. |
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EOF |
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} |
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while [[ $# -gt 0 ]]; do |
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case "$1" in |
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--cluster) |
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CLUSTER_NAME="$2" |
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shift 2 |
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;; |
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--format) |
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FORMAT="$2" |
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shift 2 |
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;; |
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-h|--help) |
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usage |
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exit 0 |
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;; |
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*) |
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echo "ERROR: unknown option: $1" >&2 |
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usage |
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exit 1 |
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;; |
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esac |
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done |
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if [[ ! -f "${CONFIG_PATH}" ]]; then
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echo "ERROR: missing cluster config: ${CONFIG_PATH}" >&2
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exit 1 |
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fi |
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case "${FORMAT}" in
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ip) |
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jq -r --arg cluster "${CLUSTER_NAME}" '
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.clusters[$cluster].nodes |
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| to_entries[] |
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| ( |
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.value.ip |
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// .value.wan.vmbr443.address |
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// empty |
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) |
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| split("/")[0]
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' "${CONFIG_PATH}"
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;; |
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name) |
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jq -r --arg cluster "${CLUSTER_NAME}" '
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.clusters[$cluster].nodes |
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| to_entries[] |
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| .key |
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' "${CONFIG_PATH}"
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;; |
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name=ip) |
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jq -r --arg cluster "${CLUSTER_NAME}" '
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.clusters[$cluster].nodes |
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| to_entries[] |
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| .key + "=" + ((.value.ip // .value.wan.vmbr443.address // empty) | split("/")[0])
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' "${CONFIG_PATH}"
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;; |
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*) |
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echo "ERROR: unsupported format: ${FORMAT}" >&2
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exit 1 |
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;; |
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esac |