未能打开插件清单/.traefik.yml:打开/.traefik.yml:没有这样的文件或目录

Question

我是特雷菲克的新手。我正在尝试开发一个插件，并使用Docker将它“连接”到我的and服务器上。我使用码头构图进行开发。当我试图运行Docker撰写时，我遇到了以下错误：

/dev/echo-docker-compose $ docker-compose up --build
Starting echo-server ... done
Recreating traefik   ... done
Attaching to echo-server, traefik
echo-server    | Echo server listening on port 8080.
traefik        | time="2022-03-18T07:40:11Z" level=info msg="Configuration loaded from flags."
traefik        | time="2022-03-18T07:40:11Z" level=info msg="Traefik version 2.6.1 built on 2022-02-14T16:50:25Z"
traefik        | time="2022-03-18T07:40:11Z" level=debug msg="Static configuration loaded {\"global\":{\"checkNewVersion\":true},\"serversTransport\":{\"maxIdleConnsPerHost\":200},\"entryPoints\":{\"traefik\":{\"address\":\":8080\",\"transport\":{\"lifeCycle\":{\"graceTimeOut\":\"10s\"},\"respondingTimeouts\":{\"idleTimeout\":\"3m0s\"}},\"forwardedHeaders\":{},\"http\":{},\"udp\":{\"timeout\":\"3s\"}},\"web\":{\"address\":\":80\",\"transport\":{\"lifeCycle\":{\"graceTimeOut\":\"10s\"},\"respondingTimeouts\":{\"idleTimeout\":\"3m0s\"}},\"forwardedHeaders\":{},\"http\":{},\"udp\":{\"timeout\":\"3s\"}}},\"providers\":{\"providersThrottleDuration\":\"2s\",\"docker\":{\"watch\":true,\"endpoint\":\"unix:///var/run/docker.sock\",\"defaultRule\":\"Host(`{{ normalize .Name }}`)\",\"swarmModeRefreshSeconds\":\"15s\"}},\"api\":{\"insecure\":true,\"dashboard\":true},\"log\":{\"level\":\"DEBUG\",\"format\":\"common\"},\"pilot\":{\"dashboard\":true},\"experimental\":{\"localPlugins\":{\"traefik-plugin-example\":{\"moduleName\":\"github.com/usergithub/traefik-plugin-example\"}}}}"
traefik        | time="2022-03-18T07:40:11Z" level=info msg="\nStats collection is disabled.\nHelp us improve Traefik by turning this feature on :)\nMore details on: https://doc.traefik.io/traefik/contributing/data-collection/\n"
traefik        | 2022/03/18 07:40:11 traefik.go:79: command traefik error: 1 error occurred:
traefik        |        * failed to open the plugin manifest plugins-local/src/github.com/usergithub/traefik-plugin-example/.traefik.yml: open plugins-local/src/github.com/usergithub/traefik-plugin-example/.traefik.yml: no such file or directory
traefik        | 
traefik        | 
traefik exited with code 1

我想我可以得出结论，这个错误的原因是它找不到.traefik.yml文件，这是很明显的。但是，我已经在那个目录里有文件了。

这是我的完整目录结构

dev/plugins-local/
    └── src
        └── github.com
            └── traefik
                └── traefik-plugin-example
                    ├── plugin.go
                    ├── plugin_test.go
                    ├── .traefik.yml
                    ├── go.mod
                    ├── Dockerfile
                    ├── Makefile
    ├── traefik
    ├── traefik-plugin.go
    ├── rules-plugin.go
dev/echo-docker-compose/
    └── docker-compose.yml
    └── cmd
        └── ....

出于某些原因，我认为Docker撰写不懂.traefik.yml。但是，当我尝试从./traefik --configfile traefik-plugin.yml运行dev/plugins-local时，情况也是一样的。它还在无法读取.traefik.yml的地方抛出相同的错误。

有人知道怎么解决这个问题吗？

以下是有关守则：

服务器回购

# dev/echo-docker-compose/.env
PLUGIN_MODULE=github.com/usergithub/traefik-plugin-example
PLUGIN_NAME=traefik-plugin-example

# dev/echo-docker-compose/docker-compose.yml
version: "3.3"

services:
  traefik:
    image: "traefik:v2.6"
    container_name: "traefik"
    command:
      - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--experimental.localPlugins.${PLUGIN_NAME}.moduleName=${PLUGIN_MODULE}"
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

  echo-server:
    image: "usergithub/echo-server"
    container_name: "echo-server"
    labels:
      - "traefik.enable=true"
      # The domain the service will respond to
      - "traefik.http.routers.echoserver.rule=Host(`echoserver.localhost`)"
      # Allow request only from the predefined entry point named "web"
      - "traefik.http.routers.echoserver.entrypoints=web"
      - "traefik.http.routers.echoserver.entrypoints=web"
      - "traefik.http.routers.echoserver.middlewares=echoserver-demo"
      - "traefik.http.middlewares.echoserver-demo.plugin.${PLUGIN_NAME}.headers.DoesPluginWork=YES"
      - "traefik.http.routers.echoserver.tls.certresolver=default"

插件回购

# dev/plugins-local/traefik-plugin.go
pilot:
    token: "token"

api:
  dashboard: true
  insecure: true

experimental:
  localPlugins:
    traefik-plugin-example:
      moduleName: github.com/usergithub/traefik-plugin-example

entryPoints:
  http:
    address: ":8000"
    forwardedHeaders:
      insecure: true
  
providers:
  file:
    filename: rules-plugin.yaml 

# dev/plugins-local/src/github.com/usergithub/traefik-plugin-example/.traefik.yml
displayName: Traefik Example Plugin
type: middleware

import: github.com/usergithub/traefik-plugin-example

summary: 'Write plugin'

testData:
  userAgent:
    - Firefox
    - Mozilla/5.0

Answer 1

根据文档，“您的项目的根必须有一个描述插件的.traefik.yml文件”，根据我在您的目录结构中看到的，您将.traefik.yml放置在"src“文件夹中，其中有几个子文件夹。

将文件放在正确的位置可以解决问题，请注意go.mod也应该位于根目录(插件必须使用git标记)。

作为额外的资源，您可以检查演示插件，

此外，对于任何阅读者，我必须添加一个免责声明，因为Traefik插件仍然是一个“实验特性”，应该谨慎使用。