在istio后面访问启用Nginx的服务时,对等方重置连接

问题描述 投票:0回答:2

修改了helm chartalerta,使其在启用了istio的GKE群集上旋转。

创建Alerta吊舱和它的挎包OK

▶ k get pods | grep alerta
alerta-758bc87dcf-tp5nv                        2/2     Running   0          22m

[当我尝试访问我的虚拟服务指向的URL

我收到以下错误

上游连接错误或在标头之前断开连接/重置。重置原因:连接终止

▶ k get vs alerta-virtual-service -o yaml
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  annotations:
    helm.fluxcd.io/antecedent: mynamespace:helmrelease/alerta
  creationTimestamp: "2020-04-23T14:45:04Z"
  generation: 1
  name: alerta-virtual-service
  namespace: mynamespace
  resourceVersion: "46844125"
  selfLink: /apis/networking.istio.io/v1alpha3/namespaces/mynamespace/virtualservices/alerta-virtual-service
  uid: 2a3caa13-3900-4da1-a3a1-9f07322b52b0
spec:
  gateways:
  - mynamespace/istio-ingress-gateway
  hosts:
  - alerta.myurl.com
  http:
  - appendHeaders:
      x-request-start: t=%START_TIME(%s.%3f)%
    match:
    - uri:
        prefix: /
    route:
    - destination:
        host: alerta
        port:
          number: 80
    timeout: 60s

这里是服务

▶ k get svc alerta -o yaml
apiVersion: v1
kind: Service
metadata:
  annotations:
    helm.fluxcd.io/antecedent: mynamespace:helmrelease/alerta
  creationTimestamp: "2020-04-23T14:45:04Z"
  labels:
    app: alerta
    chart: alerta-0.1.0
    heritage: Tiller
    release: alerta
  name: alerta
  namespace: mynamespace
  resourceVersion: "46844120"
  selfLink: /api/v1/namespaces/mynamespace/services/alerta
  uid: 4d4a3c73-ee42-49e3-a4cb-8c51536a0508
spec:
  clusterIP: 10.8.58.228
  ports:
  - name: http
    port: 80
    protocol: TCP
    targetPort: http
  selector:
    app: alerta
    release: alerta
  sessionAffinity: None
  type: ClusterIP
status:
  loadBalancer: {}

但是,当我通过另一个Pod执行到集群中并尝试到达alerta svc端点时:

/ # curl -IL http://alerta
curl: (56) Recv failure: Connection reset by peer
/ # nc -zv -w 3 alerta 80
alerta (10.8.58.228:80) open

尽管显然端口是开放的

任何建议?

可能是这两个代理服务器的链接正在产生问题?特使背后的nginx?

容器日志似乎很正常

2020-04-23 15:34:40,272 DEBG 'nginx' stdout output: 
ip=\- [\23/Apr/2020:15:34:40 +0000] "\GET / HTTP/1.1" \200 \994 "\-" "\kube-probe/1.15+"
/web | /index.html | > GET / HTTP/1.1

edit:这是详细的curl,其中主机头已明确设置

/ # curl -v -H "host: alerta.myurl.com" http://alerta:80
* Rebuilt URL to: http://alerta:80/
*   Trying 10.8.58.228...
* TCP_NODELAY set
* Connected to alerta (10.8.58.228) port 80 (#0)
> GET / HTTP/1.1
> host: alerta.myurl.com
> User-Agent: curl/7.57.0
> Accept: */*
>
* Recv failure: Connection reset by peer
* Closing connection 0
curl: (56) Recv failure: Connection reset by peer

app / pod使用的nginx配置文件是以下FWIW

worker_processes 4;
pid /tmp/nginx.pid;

daemon off;
error_log /dev/stderr info;

events {
        worker_connections 1024;
}

http {
        client_body_temp_path /tmp/client_body;
        fastcgi_temp_path /tmp/fastcgi_temp;
        proxy_temp_path /tmp/proxy_temp;
        scgi_temp_path /tmp/scgi_temp;
        uwsgi_temp_path /tmp/uwsgi_temp;

        include /etc/nginx/mime.types;

        gzip on;
        gzip_disable "msie6";

        log_format main 'ip=\$http_x_real_ip [\$time_local] '
        '"\$request" \$status \$body_bytes_sent "\$http_referer" '
        '"\$http_user_agent"' ;

        log_format scripts '$document_root | $uri | > $request';

        default_type application/octet-stream;

        server {
                listen 8080 default_server;


                access_log /dev/stdout main;
                access_log /dev/stdout scripts;

                location ~ /api {
                        include /etc/nginx/uwsgi_params;
                        uwsgi_pass unix:/tmp/uwsgi.sock;

                        proxy_set_header Host $host:$server_port;
                        proxy_set_header X-Real-IP $remote_addr;
                        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                }

                root /web;
                index index.html;
                location / {
                        try_files $uri $uri/ /index.html;
                }
        }
}

edit 2:尝试获取istio身份验证策略

✔                                                                                                             18h55m  ⍉
▶ kubectl get peerauthentication.security.istio.io
No resources found.
✔                                                                                                              18h55m
▶ kubectl get peerauthentication.security.istio.io/default -o yaml
Error from server (NotFound): peerauthentications.security.istio.io "default" not found

edit 3:当从istio代理容器中对服务执行curl

▶ k exec -it alerta-758bc87dcf-jzjgj -c istio-proxy bash
istio-proxy@alerta-758bc87dcf-jzjgj:/$ curl -v http://alerta:80
* Rebuilt URL to: http://alerta:80/
*   Trying 10.8.58.228...
* Connected to alerta (10.8.58.228) port 80 (#0)
> GET / HTTP/1.1
> Host: alerta
> User-Agent: curl/7.47.0
> Accept: */*
>
* Recv failure: Connection reset by peer
* Closing connection 0
curl: (56) Recv failure: Connection reset by peer
kubernetes istio
2个回答
0
投票

执行到相应的istio-proxy容器并打开trace-级别登录时>

curl http://localhost:15000/logging?level=trace

我看到以下错误:

alerta-758bc87dcf-jzjgj istio-proxy [2020-04-24 13:15:21.180][29][debug][connection] [external/envoy/source/extensions/transport_sockets/tls/ssl_socket.cc:168] [C1484] handshake error: 1
alerta-758bc87dcf-jzjgj istio-proxy [2020-04-24 13:15:21.180][29][debug][connection] [external/envoy/source/extensions/transport_sockets/tls/ssl_socket.cc:201] [C1484] TLS error: 268435612:SSL routines:OPENSSL_internal:HTTP_REQUEST

0
投票

我用istio 1.5.2创建了新的gke集群,实际上,如果您检查mtls,则找不到资源

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