如何解决kubernetes中的入口Nginx路由使用nginx反向代理从docker-compose转换
我正试图从在docker-compose中运行某些服务到kubernetes,并努力从nginx反向代理迁移到入口nginx。该服务使用具有网络界面的h2o ai。我无法打开k8s版本的Web界面。
我认为我需要修改入口文件中的规范以正确路由,感谢任何有关如何执行此操作的指针。
在使用nginx作为反向代理的docker解决方案中,当我访问http://k8s-master:3002
时,它会重定向到http://k8s-master:3002/flow/index.html
并正确显示
对于k8s,(我在{{1}上以ingress-nginx-controller
的身份运行NodePort
),我尝试访问32000
并收到如下错误消息:
https://k8s-master:32000/h2otest
更新:基于陈肯的评论
我将下面的入口更改为使用{"__meta":{"schema_version":3,"schema_name":"H2OErrorV3","schema_type":"H2OError"},"timestamp":1602674406013,"error_url":"Resource /h2otest","msg":"\n\nERROR MESSAGE:\n\nResource /h2otest not found\n\n","dev_msg":"\n\nERROR MESSAGE:\n\nResource /h2otest not found\n\n","http_status":404,"values":{},"exception_type":"water.exceptions.H2ONotFoundArgumentException","exception_msg":"\n\nERROR MESSAGE:\n\nResource /h2otest not found\n\n","stacktrace":["water.exceptions.H2ONotFoundArgumentException: Resource /h2otest not found"," water.api.RequestServer.response404(RequestServer.java:743)"," water.api.RequestServer.getResource(RequestServer.java:846)"," water.api.RequestServer.serve(RequestServer.java:465)"," water.api.RequestServer.doGeneric(RequestServer.java:301)"," water.api.RequestServer.doGet(RequestServer.java:225)"," javax.servlet.http.HttpServlet.service(HttpServlet.java:687)"," javax.servlet.http.HttpServlet.service(HttpServlet.java:790)"," org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)"," org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)"," org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)"," org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)"," org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)"," org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)"," org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)"," org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)"," org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)"," org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)"," org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)"," water.webserver.jetty9.Jetty9ServerAdapter$LoginHandler.handle(Jetty9ServerAdapter.java:130)"," org.eclipse.jetty.server.Server.handle(Server.java:531)"," org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)"," org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)"," org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)"," org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)"," org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)"," org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)"," org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)"," java.lang.Thread.run(Thread.java:748)"]}
现在,当我键入nginx.ingress.kubernetes.io/rewrite-target: /$2
时,它会重定向到:https://k8s-master:32000/h2otest
直接输入https://k8s-master:32000/flow/index.html
即可。 如何修改规则,以便 https://k8s-master:32000/h2otest/flow/index.html
直接转到 https://k8s-master:32000/h2otest
?
以下包含每个版本的文件:
码头工人版本 https://k8s-master:32000/h2otest/flow/index.html
docker-compose.yml
services :
test-h2o-svc:
build:
context: h2o
dockerfile: Dockerfile
image: test-h2o:3.30.1.1
restart: always
networks:
- testnet
# ports:
# - 54323:54321
test-reverse-proxy:
image: nginx:alpine
hostname: reverse-proxy
restart: always
ports:
- 3002:3002
volumes:
- "./nginx_files/nginx.conf:/etc/nginx/nginx.conf:rw"
- "./nginx_files/sites-available/test.conf:/etc/nginx/conf.d/sites-available/test.conf:rw"
- "./nginx_files/sites-available/test.conf:/etc/nginx/conf.d/sites-enabled/test.conf:rw"
networks:
- testnet
networks:
testnet:
version: "3.5"
nginx.conf
user nginx;
worker_processes 4;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$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;
#tcp_nopush on;
keepalive_timeout 180;
#gzip on;
include /etc/nginx/conf.d/sites-enabled/*.conf;
client_body_buffer_size 50M;
client_max_body_size 2000M;
}
test.conf
upstream link_h2o-svc {
server test-h2o-svc:54321;
}
server {
listen 3002;
location / {
proxy_pass http://link_h2o-svc;
}
}
用于容器:Dockerfile
test-h2o:3.30.1.1
k8s版本
FROM ubuntu:latest
ARG H2O_VERSION=3.30.1.1
RUN apt-get update \
&& apt-get install default-jdk unzip wget -y
RUN wget https://h2o-release.s3.amazonaws.com/h2o/rel-zeno/1/h2o-${H2O_VERSION}.zip \
&& unzip h2o-${H2O_VERSION}.zip
ENV H2O_VERSION ${H2O_VERSION}
CMD java -jar h2o-${H2O_VERSION}/h2o.jar
解决方法
我如何修改规则,以便https:// k8s-master:30439 / h2otest直接转到https:// k8s-master:30439 / h2otest / flow / index.html
这不是Nginx入口问题。像大多数其他入口一样,nginx-ingress可以通过SSL卸载来进行基于名称的虚拟主机和SNI(或基于SSL名称的虚拟主机)。开箱即用,无所不包。
尽管nginx-ingress可以进行一些基本的重写,但仅限于将/path/(.*)
重写为/(.*)
并将其传递到下一个容器以处理来自那里的流量。如果您想让它做更多的事情,那么您就可以为nginx-ingress编写配置映射了。
是的,您需要设置客户端主体大小等的注释,但是应用程序本身(而非入口)需要处理/h2otest
-> /h2otest/flow/index.html
重写(或/
-> /flow/index.html
。
从您描述的布局来看,
(nginx)ingress
-> app
您可能需要将布局更改为(nginx)ingress
-> nginx
-> app
,中间的nginx进行/
-> /flow/index.html
重写
一个忠告。如果您有机会使用基于名称的虚拟主机,而不要使用基于路径的虚拟主机(除非您有充分的理由,例如cors)基于路径。如今,许多应用程序只是假设它们位于/
上,如果您在其他地方,则配置会变得“有趣”
Nginx反向代理将/h2otest
重写为/
,但是将/
重定向到/flow/index.html
。此时,nginx尚无处理/flow
的规则,因此结果为404。
尝试删除路径,并改用根/
。
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: test-ingress
namespace: ns-test
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
spec:
rules:
- http:
paths:
- path: /
pathType: Prefix
backend:
serviceName: test-h2o-svc
servicePort: 54321
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