🎉 Complete Nomad monitoring infrastructure project

✅ Major Achievements:
- Deployed complete observability stack (Prometheus + Loki + Grafana)
- Established rapid troubleshooting capabilities (3-step process)
- Created heatmap dashboard for log correlation analysis
- Unified logging system (systemd-journald across all nodes)
- Configured API access with Service Account tokens

🧹 Project Cleanup:
- Intelligent cleanup based on Git modification frequency
- Organized files into proper directory structure
- Removed deprecated webhook deployment scripts
- Eliminated 70+ temporary/test files (43% reduction)

📊 Infrastructure Status:
- Prometheus: 13 nodes monitored
- Loki: 12 nodes logging
- Grafana: Heatmap dashboard + API access
- Promtail: Deployed to 12/13 nodes

🚀 Ready for Terraform transition (静默一周后切换)

Project Status: COMPLETED ✅

infrastructure/opentofu/providers/nomad-client-tofu/client-deploy.tf

@@ -0,0 +1,87 @@
+# OpenTofu 小王 - 客户端配置部署
+terraform {
+  required_providers {
+    null = {
+      source = "registry.opentofu.org/hashicorp/null"
+      version = "3.2.4"
+    }
+  }
+}
+
+# 6个客户端节点列表
+variable "client_nodes" {
+  type = list(string)
+  default = [
+    "hcp1",
+    "influxdb", 
+    "ash3c",
+    "ch4",
+    "warden",
+    "browser"
+  ]
+}
+
+# 为每个客户端节点生成配置文件
+resource "local_file" "client_configs" {
+  for_each = toset(var.client_nodes)
+  
+  filename = "${path.module}/generated/${each.key}-client.hcl"
+  content = replace(
+    file("${path.module}/../nomad-configs-tofu/client-template.hcl"),
+    "NODE_NAME",
+    each.key
+  )
+}
+
+# 部署配置到每个客户端节点
+resource "null_resource" "client_deploy" {
+  for_each = toset(var.client_nodes)
+  
+  depends_on = [local_file.client_configs]
+  
+  provisioner "local-exec" {
+    command = <<EOF
+echo "=== 部署客户端配置到 ${each.key} ==="
+echo "开始时间: $(date)"
+
+echo "1. 测试连接 ${each.key}..."
+ping -c 1 ${each.key}.tailnet-68f9.ts.net || echo "   - ${each.key} ping 失败"
+
+echo "2. 上传配置文件..."
+sshpass -p '3131' scp -o StrictHostKeyChecking=no -o ConnectTimeout=5 \
+  ${path.module}/generated/${each.key}-client.hcl \
+  ben@${each.key}.tailnet-68f9.ts.net:/tmp/nomad-new.hcl && echo "   - 文件上传成功" || echo "   - 文件上传失败"
+
+echo "3. 部署配置并重启服务..."
+sshpass -p '3131' ssh -o StrictHostKeyChecking=no -o ConnectTimeout=5 \
+  ben@${each.key}.tailnet-68f9.ts.net \
+  "echo '=== ${each.key} 客户端配置部署开始 ==='; \
+   echo '3131' | sudo -S systemctl stop nomad; \
+   echo '备份旧配置...'; \
+   echo '3131' | sudo -S cp /etc/nomad.d/nomad.hcl /etc/nomad.d/nomad.hcl.backup.\$(date +%Y%m%d_%H%M%S) 2>/dev/null || true; \
+   echo '替换配置文件...'; \
+   echo '3131' | sudo -S cp /tmp/nomad-new.hcl /etc/nomad.d/nomad.hcl; \
+   echo '启动服务...'; \
+   echo '3131' | sudo -S systemctl start nomad; \
+   sleep 5; \
+   echo '检查服务状态...'; \
+   echo '3131' | sudo -S systemctl status nomad --no-pager; \
+   echo '=== ${each.key} 部署完成 ==='" && echo "   - ${each.key} 部署成功" || echo "   - ${each.key} 部署失败"
+
+echo "=== ${each.key} 配置部署完成！时间: $(date) ==="
+EOF
+  }
+  
+  triggers = {
+    config_hash = local_file.client_configs[each.key].content_md5
+    deploy_time = timestamp()
+  }
+}
+
+output "deployment_summary" {
+  value = {
+    client_nodes = var.client_nodes
+    config_files = [for node in var.client_nodes : "${node}-client.hcl"]
+    deploy_time = timestamp()
+  }
+}