Prometheus 监控域名可用性和Docker容器状态及 Grafana仪表盘配置

以下是整合 Prometheus + Blackbox Exporter + cAdvisor + Grafana 的完整监控配置步骤，包含 域名/端口监控、Docker容器状态监控 及 Grafana仪表盘配置：
一、监控域名可用性及端口连通性

1. 安装并配置 Blackbox Exporter

[code]# 下载安装wget https://github.com/prometheus/blackbox_exporter/releases/download/v0.24.0/blackbox_exporter-0.24.0.linux-amd64.tar.gztar -xzf blackbox_exporter-*.tar.gzsudo mv blackbox_exporter-*/blackbox_exporter /usr/local/bin/# 创建配置文件sudo mkdir -p /etc/blackbox_exportersudo tee /etc/blackbox_exporter/config.yml