在dockerfile 中添加下面内容注意换行

RUN sed -i 's/MinProtocol = TLSv1.2/MinProtocol = TLSv1/' /etc/ssl/openssl.cnf \
&& sed -i 's/CipherString = DEFAULT@SECLEVEL=2/CipherString = DEFAULT@SECLEVEL=1/' /etc/ssl/openssl.cnf

实例

FROM mcr.microsoft.com/dotnet/aspnet:3.1 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443
RUN sed -i 's/MinProtocol = TLSv1.2/MinProtocol = TLSv1/' /etc/ssl/openssl.cnf \
&& sed -i 's/CipherString = DEFAULT@SECLEVEL=2/CipherString = DEFAULT@SECLEVEL=1/' /etc/ssl/openssl.cnf
FROM mcr.microsoft.com/dotnet/sdk:3.1 AS build
WORKDIR /src
COPY ["xxx/xxx.csproj", "xxxx/"]
RUN dotnet restore "xxx/xxx.csproj"
COPY . .
WORKDIR "/src/xxx"
RUN dotnet build "xxx.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "xxx.csproj" -c Release -o /app/publish
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .

ENTRYPOINT ["dotnet", "xxx.dll"]