长话短说
我无法通过 Kong 网关向本地 docker 容器（可通过 127.0.0.1:4002 访问）发送 HTTP 请求。
Kong网关组件：
- 服务测试服务：
url=http://127.0.0.1:4002； - 路线test_route :
paths[]=/test,name=test_route;
向 Kong 代理请求：
$ curl -X GET http://localhost:8000/test
{
"message":"An invalid response was received from the upstream server",
"request_id":"9aba1e35ea54222d9fd27c4e2eeea850"
}
长版
我创建了一个简单的 Express 应用程序，它使用“Foo”和“Bar”响应 HTTP 请求，并将其进行了 Docker 化。
应用
索引.js：
const express = require('express');
const app = express();
var port = 4002;
app.use("/foo", (req, res) => {
res.send("Foo");
});
app.use("/bar", (req, res) => {
res.send("Bar");
});
app.use((req, res) => {
res.send("Test unknown path");
});
app.listen(port, () => {
console.log(`Foo-bar listening on port ${port}`)
})
Dockerfile：
FROM node:lts-alpine
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 4002
CMD ["node", "index.js"]
构建并运行它后，我可以将 HTTP 请求发送到“localhost:4002”并正确获取响应。
例子：
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fce1cc4e7b24 mikyll/test-service:latest "docker-entrypoint.s…" About a minute ago Up About a minute 0.0.0.0:4002->4002/tcp nice_blackwell
$ curl -X GET http://localhost:4002
Test unknown path
$ curl -X GET http://localhost:4002/foo
Foo
$ curl -X GET http://localhost:4002/bar
Bar
Kong设置
我按照说明在 Docker 上设置 Kong Gateway并管理服务和路由：
- 我运行 Kong Gateway 容器：
curl -Ls https://get.konghq.com/quickstart | bash
- 测试连接：
$ curl --head localhost:8001
HTTP/1.1 200 OK
[...]
- 创建了一个服务：
$ curl -i -s -X POST http://localhost:8001/services --data name=test_service --data url='http://127.0.0.1:4002'
HTTP/1.1 201 Created
[...]
服务 JSON：
{
"data":[
{
"retries":5,
"tls_verify":null,
"protocol":"http",
"port":4002,
"updated_at":1700054325,
"created_at":1700054325,
"connect_timeout":60000,
"read_timeout":60000,
"client_certificate":null,
"host":"127.0.0.1",
"path":null,
"name":"test_service",
"enabled":true,
"tags":null,
"write_timeout":60000,
"ca_certificates":null,
"id":"e79539ca-603b-4237-8abd-6ff07bd73160",
"tls_verify_depth":null
}
],
"next":null
}
- 创建了一条路线：
$ curl -i -X POST http://localhost:8001/services/test_service/routes --data 'paths[]=/test' --data name=test_route
路由 JSON：
{
"data":[
{
"https_redirect_status_code":426,
"service":{
"id":"e79539ca-603b-4237-8abd-6ff07bd73160"
},
"id":"4b04a262-6229-4361-9b2c-88f00b0fe6c2",
"hosts":null,
"path_handling":"v0",
"updated_at":1700054404,
"created_at":1700054404,
"preserve_host":false,
"headers":null,
"methods":null,
"sources":null,
"destinations":null,
"paths":[
"/test"
],
"snis":null,
"name":"test_route",
"tags":null,
"request_buffering":true,
"response_buffering":true,
"protocols":[
"http",
"https"
],
"regex_priority":0,
"strip_path":true
}
],
"next":null
}
问题
当我尝试发送 HTTP 请求时，收到错误“从上游服务器收到无效响应。”：
$ curl -X GET http://localhost:8000/test
{
"message":"An invalid response was received from the upstream server",
"request_id":"9aba1e35ea54222d9fd27c4e2eeea850"
}
问题
我的配置（服务/路由）是否错误？我是否缺少一些设置步骤？
