Docker语言 - Flutter Web 部署 - 无法访问站点

Question

我正在使用Docker和Flutter Web。我刚刚完成了Docker和Compose的设置。 我的Dockerfile

FROM ubuntu:18.04
ARG PROJECT_DIR=/srv/api
ENV PATH=/opt/flutter/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
RUN apt-get update && 
apt-get install -y 
xz-utils 
git 
openssh-client 
curl && 
apt-get upgrade -y && 
rm -rf /var/cache/apt
RUN curl -L https://storage.googleapis.com/flutter_infra/releases/stable/linux/flutter_linux_v1.7.8+hotfix.4-stable.tar.xz | tar -C /opt -xJ
RUN apt-get install -y lib32stdc++6
WORKDIR ${PROJECT_DIR}
COPY ./ ./
RUN flutter doctor
RUN flutter upgrade
RUN flutter packages pub global activate webdev
RUN flutter packages upgrade

我的docker-compose.yaml

version: '3.1'
services:
api:
container_name: flutter-web-test
restart: always
image: flutter-web-test
build:
context: ./
volumes:
- //var/run/docker.sock:/var/run/docker.sock
command: ["flutter", "pub", "global", "run", "webdev", "serve", "web:5001"]

执行docker-compose -f docker-compose.yaml build和docker-compose -f docker-compose.yaml up后，我收到服务器应该启动。

flutter-web-test | web
flutter-web-test | [WARNING] Throwing away cached asset graph due to Dart SDK update.

flutter-web-test | [INFO] Cleaning up outputs from previous builds. completed, took 76ms
flutter-web-test | [INFO] Building new asset graph completed, took 2.5s
flutter-web-test | [INFO] Checking for unexpected pre-existing outputs. completed, took 2ms
flutter-web-test | [INFO] Serving `web` on http://127.0.0.1:5001

但是，当我尝试连接到 http://127.0.0.1:5001 时 - 我看到This site cannot be reached窗口。

如果我在本地运行它，它工作得很好。我相信我一定跳过了 Docker 中的某些内容，但找不到问题。任何人都可以帮助发现问题吗？

Answer 1

webdev服务器应该像这样的答案0.0.0.0监听。

服务ports应映射到主机，并且docker守护程序路径应/var/run/docker.sock：

version: '3.1'
services:
api:
container_name: flutter-web-test
restart: always
image: flutter-web-test
ports:
- "5001:5001"
build:
context: ./
volumes:
- /var/run/docker.sock:/var/run/docker.sock
command: ["flutter", "pub", "global", "run", "webdev", "serve", "--hostname", "0.0.0.0:5001"] 

Answer 2

您的 docker-compose 文件中缺少端口

version: '3.1'
services:
api:
container_name: flutter-web-test
restart: always
image: flutter-web-test
port:
- "5001":"5001"
build:
context: ./
volumes:
- //var/run/docker.sock:/var/run/docker.sock
command: ["flutter", "pub", "global", "run", "webdev", "serve", "web:5001"]