使用wiremock-docker代理多个URL

Question

我有一个使用微服务的项目。我正在尝试使用wire-mock来创建一个测试环境。

如何使用 docker-compose 代理多个 URL。

这是我的 docker-compose 文件。

networks:
    ft-simulator:
        external: false
services:
    app:
        depends_on:
        - nginx
        environment:
        - SPRING_PROFILES_ACTIVE=simulator
        - JAVA_FLAGS=-Dhttp.proxyHost=wiremock -Dhttp.proxyPort=8080
        healthcheck:
            interval: 1m
            retries: 3
            test:
            - CMD
            - curl
            - -f
            - http://localhost:8080/health
            timeout: 10s
        image: ft-simulator:latest
        ports:
          - "8080:8080"
        networks:
            ft-simulator:
                aliases:
                - bcp
    nginx:
        image: nginx
        ports:
          - "80:80"
          - "443:443"
        networks:
        - ft-simulator
    wiremock:
        image: rodolpheche/wiremock:2.8.0-alpine
        networks:
        - ft-simulator
        ports:
          - "8081:8080"
        volumes:
          - "$PWD/stubs:/home/wiremock"
        command: ["--proxy-all=http://bcp:8080, http://www.google.com"]
version: '3.1'

Google 在启动之前只是一个占位符。

当我运行 docker-compose up 时出现以下错误

crp11070m:wiremock-simulation john.hamlett$ docker logs -f wiremocksimulation_wiremock_1
Exception in thread "main" java.lang.IllegalArgumentException: Illegal character in authority at index 7: http://bcp:8080, http://www.google.com
    at java.net.URI.create(URI.java:852)
    at com.github.tomakehurst.wiremock.standalone.CommandLineOptions.proxyHostHeader(CommandLineOptions.java:274)
    at com.github.tomakehurst.wiremock.core.WireMockApp.buildStubRequestHandler(WireMockApp.java:123)
    at com.github.tomakehurst.wiremock.WireMockServer.<init>(WireMockServer.java:72)
    at com.github.tomakehurst.wiremock.standalone.WireMockServerRunner.run(WireMockServerRunner.java:65)
    at com.github.tomakehurst.wiremock.standalone.WireMockServerRunner.main(WireMockServerRunner.java:113)
Caused by: java.net.URISyntaxException: Illegal character in authority at index 7: http://bcp:8080, http://www.google.com
    at java.net.URI$Parser.fail(URI.java:2848)
    at java.net.URI$Parser.parseAuthority(URI.java:3186)
    at java.net.URI$Parser.parseHierarchical(URI.java:3097)
    at java.net.URI$Parser.parse(URI.java:3053)
    at java.net.URI.<init>(URI.java:588)
    at java.net.URI.create(URI.java:850)
    ... 5 more

Answer 1

使用--proxy-all 参数不能同时代理多个目标网址。

您可以做的是根据传入请求通过为每个路由创建一个带有代理响应的存根映射来改变代理目标，例如

路线 1：

{
    "request": {
        "urlPattern": "/route1/.*"
    },

    "response": {
        "proxyBaseUrl" : "http://target-host-1.com"
    }
}

路线 2：

{
    "request": {
        "urlPattern": "/route2/.*"
    },

    "response": {
        "proxyBaseUrl" : "http://target-host-2.com"
    }
}

请注意，URL 路径部分将被添加到 URL，因此您最终会收到代理到 http://target-host-1.com/route1/whatever 和 http://target-host-2.com/route2/whatever 的请求。