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[英]Docker-Compose Unable to connect to any of the specified MySQL hosts
[英]Docker mysql container Unable to connect to any of the specified MySQL hosts
我正在開發一個asp .net core 5.0 web application
,我正在使用 docker 使用 ZAEF93945E84057AE7 當我嘗試運行 EF 命令add-migration
時,我的asp.net core
應用程序和MySQL
有 2 項服務,我收到此錯誤:
Unable to connect to any of the specified MySQL hosts.
這是我的Dockerfile
的代碼
FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS base
EXPOSE 8008
WORKDIR /app
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
WORKDIR /src
COPY ["chatroom.csproj", "."]
RUN dotnet restore "./chatroom.csproj"
COPY . .
WORKDIR "/src/."
RUN dotnet build "chatroom.csproj" -c Release -o /app/build
FROM build AS publish
RUN dotnet publish "chatroom.csproj" -c Release -o /app/publish
FROM base AS final
WORKDIR /app
EXPOSE 5000
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "chatroom.dll"]
這是我的docker-compose.yml
文件的代碼
version: '3.0'
services:
db:
image: mysql:latest
container_name: mysqldb
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: livredb
MYSQL_USER: wassef
MYSQL_PASSWORD: hw
restart: always
ports:
- "3306:3306"
web:
image: chatroom
build:
context: .
dockerfile: Dockerfile
ports:
- "8008:5000"
depends_on:
- db
這是我的ConnectionString
"ConnectionStrings": {
"mydb": "server=db;port=3306;userid=wassef;password=hw;database=livredb;"
},
順便說一句,當我訪問我的MySQL
客戶端時,我可以看到我的數據庫正在創建
原來主機網絡無法訪問 docker 網絡。 docker 網絡僅用於容器到容器的通信。 因此我將我的 ConnectionString 服務器更改為server=localhost
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