apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-conf
  namespace: default
data:
  nginx.conf: |
    worker_processes  auto;
    error_log  /var/log/nginx/error.log warn;
    pid        /var/run/nginx.pid;

    events {
        worker_connections  1024;
    }

    http {
        include       /etc/nginx/mime.types;
        default_type  application/octet-stream;

        log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                          '$status $body_bytes_sent "$http_referer" '
                          '"$http_user_agent" "$http_x_forwarded_for"';

        access_log  /var/log/nginx/access.log  main;
        sendfile        on;
        keepalive_timeout  65;

        server {
            listen       80;
            listen       [::]:80;
            server_name  localhost;

            # 1. 默认nginx欢迎页面
            location / {
                root   /usr/share/nginx/html;
                index  index.html index.htm;
            }

            # 2. nginx_status 监控接口
            location /nginx_status {
                stub_status;
                allow all;
            }

            # 3. 汇总Pod全量信息
            location = /podinfo/all {
                default_type text/plain;
                alias /data/podinfo/all.txt;
            }

            # 4. 80M测试文件下载接口
            location /download {
                root /data/file;
                rewrite ^/download/80m$ /80m-test.dat break;
                add_header Content-Disposition "attachment; filename=\"80m-test-file.dat\"";
            }

            # 5. 客户端真实IP查询
            location = /clientip {
                default_type text/plain;
                return 200 "$remote_addr\n";
            }

            # 6. 完整请求头查询
            location = /headers {
                default_type text/plain;
                return 200 "===== Request Headers =====\nHost: $host\nUser-Agent: $http_user_agent\nReferer: $http_referer\nX-Forwarded-For: $http_x_forwarded_for\nCookie: $http_cookie\nCustom X-Token: $http_x_token\n";
            }

            # 7. IPv4/IPv6网络类型识别
            location = /ipversion {
                default_type text/plain;
                if ($server_addr ~ ":") {
                    return 200 "Client Type: IPv6\n";
                }
                return 200 "Client Type: IPv4\n";
            }

            # 8. 请求元信息查询
            location = /reqinfo {
                default_type text/plain;
                return 200 "Method: $request_method\nURI: $request_uri\nArgs: $args\nProtocol: $server_protocol\nISO Time: $time_iso8601\nUnix Msec: $msec\n";
            }

            # 9. 固定故障码模拟接口
            location = /error/404 { return 404; }
            location = /error/429 { return 429; }
            location = /error/500 { return 500; }
            location = /error/502 { return 502; }
            location = /error/503 { return 503; }

            # 10. 自定义响应头测试
            location = /resp-header {
                default_type text/plain;
                add_header X-Request-Path $request_uri always;
                add_header X-Demo-Resp-Val test-demo always;
                return 200 "Use curl -I to view response headers\n";
            }

            # 11. 服务器时间戳查询
            location = /time {
                default_type text/plain;
                return 200 "ISO Time: $time_iso8601\nUnix Msec: $msec\n";
            }

            # 12. CORS跨域调试
            location = /cors {
                default_type text/plain;
                add_header Access-Control-Allow-Origin *;
                add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
                if ($request_method = OPTIONS) {
                    return 204;
                }
                return 200 "CORS test ok\n";
            }
        }
    }
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-demo
  namespace: default
spec:
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 0
      maxUnavailable: 1
  replicas: 2
  selector:
    matchLabels:
      app: nginx-demo
  template:
    metadata:
      labels:
        app: nginx-demo
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - nginx-demo
            topologyKey: "kubernetes.io/hostname"
      containers:
      - name: nginx
        image: registry.kylincloud.org:4001/kcc/images/nginx:1.23.1
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
        env:
        - name: POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        - name: NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        command: ["/bin/sh","-c"]
        args:
        - |
          mkdir -p /data/file /data/podinfo
          dd if=/dev/zero of=/data/file/80m-test.dat bs=1M count=0 seek=80
          echo -n "$POD_IP" > /data/podinfo/ip.txt
          echo -n "$POD_NAME" > /data/podinfo/name.txt
          cat > /data/podinfo/all.txt <<EOF
          POD_IP: $POD_IP
          POD_NAME: $POD_NAME
          NODE_NAME: $NODE_NAME
          NAMESPACE: $NAMESPACE
          EOF
          exec nginx -g "daemon off;"
        volumeMounts:
        - name: nginx-conf-volume
          mountPath: /etc/nginx/nginx.conf
          subPath: nginx.conf
        - name: data-empty-dir
          mountPath: /data
        resources:
          limits:
            cpu: "0.5"
            memory: 512Mi
          requests:
            cpu: "0.1"
            memory: 128Mi
      volumes:
      - name: nginx-conf-volume
        configMap:
          name: nginx-conf
      - name: data-empty-dir
        emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-nodeport-svc
  namespace: default
spec:
  selector:
    app: nginx-demo
  type: NodePort
  #ipFamilyPolicy: PreferDualStack
  #externalTrafficPolicy: Local
  ports:
  - port: 80
    targetPort: 80
    nodePort: 30080