.NET 6+React项目Docker Compose构建失败：语句意外终止错误

执行docker-compose build时出现语法相关报错，具体信息如下：

server: error reading preface from client //./pipe/docker_engine: file has already been closed
failed to solve: failed to process "."]": unexpected end of statement while looking for matching double-quote

相关配置文件内容 #

后端Dockerfile

# Backend
FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src
COPY ["LIA_TEST/LIA_TEST.csproj", "LIA_TEST/"]
RUN dotnet restore "LIA_TEST/LIA_TEST.csproj"
COPY . .
WORKDIR "/src/LIA_TEST"
RUN dotnet build "LIA_TEST.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "LIA_TEST.csproj" -c Release -o /app/publish /p:UseAppHost=false

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "LIA_TEST.dll"]

前端Dockerfile

# Frontend
FROM node:alpine as web-build
WORKDIR /app
COPY LIA_TEST/ClientApp/package*.json ./
RUN npm install
COPY LIA_TEST/ClientApp/. .
RUN npm run build

FROM nginx:alpine as web
COPY --from=web-build /app/build /usr/share/nginx/html
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]

docker-compose.yml（原始错误版本）

version: '3.4'

services:
  api:
    build:
      context: .[enter image description here](https://i.sstatic.net/ikHNO.png)
      dockerfile: Dockerfile
    ports:
      - "7175:80"

  web:
    build:
      context: ./ClientApp
      dockerfile: Dockerfile
    ports:
      - "44482:80"
    depends_on:
      - api

问题原因及修复方法 #

报错根源在docker-compose.yml的api服务配置中，context行被错误插入了无效的图片描述内容，导致YAML语法解析失败。

将api服务的context行修改为：

context: .

修改后的api服务配置片段：

api:
  build:
    context: .
    dockerfile: Dockerfile
  ports:
    - "7175:80"

修复后重新执行docker-compose build即可解决语法报错问题，连带出现的pipe相关错误也会因语法解析正常而消失。

内容的提问来源于stack exchange，提问作者chackoch