56 lines
1.6 KiB
Bash
Executable File
56 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# Node Exporter 健康检查脚本
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# 输出 JSON 格式结果
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set -e
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# 检查 Node Exporter 健康状态
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check_health() {
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local url="http://localhost:9100"
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local metrics_url="$url/metrics"
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local name="node-exporter"
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local status="unhealth"
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local reason=""
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# 检查 curl 是否可用
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if ! command -v curl &> /dev/null; then
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reason="curl 命令不可用，无法进行健康检查"
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echo "{\"name\": \"$name\", \"status\": \"$status\", \"reason\": \"$reason\"}"
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exit 1
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fi
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# 测试根路径连接
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local http_code=$(curl -s -o /dev/null -w "%{http_code}" "$url" 2>/dev/null || echo "000")
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if [[ "$http_code" == "200" ]]; then
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# 测试 metrics 端点
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local metrics_code=$(curl -s -o /dev/null -w "%{http_code}" "$metrics_url" 2>/dev/null || echo "000")
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if [[ "$metrics_code" == "200" ]]; then
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status="health"
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reason="success"
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echo "{\"name\": \"$name\", \"status\": \"$status\", \"reason\": \"$reason\"}"
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exit 0
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else
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reason="Metrics 端点异常 (HTTP $metrics_code)"
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echo "{\"name\": \"$name\", \"status\": \"$status\", \"reason\": \"$reason\"}"
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exit 1
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fi
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else
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reason="HTTP 服务异常 (HTTP $http_code)，请检查 Node Exporter 是否正在运行在端口 9100"
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echo "{\"name\": \"$name\", \"status\": \"$status\", \"reason\": \"$reason\"}"
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exit 1
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fi
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}
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# 主函数
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main() {
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check_health
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}
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# 脚本入口
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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main "$@"
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fi
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