带有 Google 云错误 CS1003 的 asp.net core 5 的自定义运行时 dockerfile：语法错误，答案

【问题标题】：Custom runtime dockerfile for asp.net core 5 with Google cloud error CS1003: Syntax error,带有 Google 云错误 CS1003 的 asp.net core 5 的自定义运行时 dockerfile：语法错误，
【发布时间】：2021-06-23 16:21:52
【问题描述】：

我正在尝试使用 Visual Studio 插件将 Asp.net core 5 应用程序发布到谷歌云。

app.yaml

runtime: custom
env: flex

manual_scaling:
  instances: 1
resources:
  cpu: 1
  memory_gb: 0.5
  disk_size_gb: 10

Docker 文件

FROM mcr.microsoft.com/dotnet/aspnet:5.0
WORKDIR /app
# Copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore
# Copy everything else and build
COPY . ./
RUN dotnet publish -c Release -o out
# Build runtime image
FROM mcr.microsoft.com/dotnet/aspnet:5.0
WORKDIR /app
COPY --from=build-env /app/out .
EXPOSE 8080
ENV ASPNETCORE_URLS=http://*:8080
ENTRYPOINT ["dotnet", "Falcon-Identity.dll"]

当我从上下文菜单使用发布到谷歌云发布时，出现以下异常

C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,23): error CS1003: Syntax error, '(' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,23): error CS1001: Identifier expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,30): error CS1001: Identifier expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,30): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,31): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,37): error CS1001: Identifier expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,37): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(1,41): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(2,9): error CS1001: Identifier expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(2,9): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(2,10): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(3,3): error CS1024: Preprocessor directive expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(4,6): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(4,8): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(4,16): error CS1001: Identifier expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(4,16): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(4,17): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(5,12): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(6,3): error CS1024: Preprocessor directive expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(7,6): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(7,10): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,12): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,20): error CS1001: Identifier expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,20): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,21): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,31): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,32): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,34): error CS1001: Identifier expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(8,34): error CS1003: Syntax error, ',' expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(9,3): error CS1024: Preprocessor directive expected [C:\Projects\falcon-identity\Falcon-Identity\Falcon-Identity.csproj]
C:\Projects\falcon-identity\Falcon-Identity\Dockerfile(10,9): error CS1003: Syntax error, ',' e

【问题讨论】：

你可以在本地运行容器镜像没有问题，即(PORT=8080 && docker run --interactive --tty --rm --env=PORT=${PORT} --publish=${PORT}:${PORT} your-image吗？
Flex（如 Cloud Run）本质上是一个容器运行器，因此，如果容器运行（在其他地方），它应该可以运行，例如应用引擎。 “本质上”是因为端口 8080 对服务和 Google 沙盒运行时都至关重要，因此保真度可能低于 100%。
我正在复制一个基本的 ASP.NET 示例，我认为您遇到的问题是设置 ENV ASPNETCORE_URL。在我更简单的示例中，如果我使用ENTRYPOINT ["dotnet", "run", "--urls=http://+:8080"]，我可以访问:8080 上的服务器
项目是否在 Docker 之外本地构建？容器是否在本地构建？在我看来，有些东西正在尝试将您的 dockerfile 构建为应用程序代码。
@DanielMann 是的项目构建，没有 docker

标签： c# asp.net asp.net-core google-cloud-platform gcloud

【解决方案1】：

我遇到了相同的问题，但有相同的例外。这是由于在 docker 文件上错误地设置了构建操作（属性选项卡 - 错误地将文件的构建操作设置为“C# 编译器”而不是“无”）。

【讨论】：

【解决方案2】：

我能够将 ASP.NET 5.0 应用成功部署到 App Engine flex（然后是 Cloud Run）。

我对 .NET 不太熟悉，因此我使用了更简单的配置，但我认为您应该也可以将我所做的应用到您的案例中。

Dockerfile:

FROM mcr.microsoft.com/dotnet/sdk:5.0

WORKDIR /app

COPY ./app/*.csproj .
RUN dotnet restore

COPY ./app/ .

EXPOSE 8080
ENTRYPOINT ["dotnet", "run","--urls=http://+:8080"]

还有：

BILLING=...
PROJECT=...
REGION=...

gcloud projects create ${PROJECT}

gcloud beta billing projects link ${PROJECT} \
--billing-account=${BILLING}

gcloud app create \
--region=${REGION} \
--project=${PROJECT}

mkdir ${PWD}/app

# Create 'empty' ASP.NET (web)app
docker run \
--interactive --tty --rm \
--volume=${PWD}/app:/app \
mcr.microsoft.com/dotnet/sdk:5.0 \
dotnet new webapp -o app

# Change generated files to `$whoami`
# Or `$(id -u):$(id -g)`
chown -R $(whoami):$(whoami) ./app

docker build \
--tag=68103677:v1 \
--file=./Dockerfile \
.

docker run \
--interactive --tty --rm \
--publish=8080:8080 \
68103677:latest

# Prove it
curl localhost:8080

# Deploy
gcloud app deploy ./app.yaml \
--project=${PROJECT} \
--quiet

# Test
gcloud app browse \
--project=${PROJECT}

开玩笑，我们可以部署 App Engine 部署创建的容器镜像，并将容器部署到 Cloud Run：

gcloud services enable run.googleapis.com \
--project=${PROJECT}

# Grab the App Engine image
IMAGE=$(\
  gcloud container images list \
  --repository=us.gcr.io/${PROJECT}/appengine \
  --limit=1 \
  --format="value(name)")

# Deploy it to Cloud Run
# For testing, deploy without authentication
# We need to replicate `ENTRYPOINT` with `--command` and `--args`
NAME="aspnet"
gcloud run deploy ${NAME} \
--image=${IMAGE} \
--command="dotnet" \
--args="run","--urls=http://+:8080" \
--max-instances=1 \
--region=${REGION} \
--project=${PROJECT} \
--allow-unauthenticated

# Grab its endpoint
ENDPOINT=$(\
  gcloud run services describe ${NAME} \
  --project=${PROJECT} \
  --platform=managed \
  --region=${REGION} \
  --format="value(status.address.url)") && \
echo ${ENDPOINT}

# Browse or...
curl ${ENDPOINT}

# Delete it when done
gcloud run services delete ${NAME} \
--region=${REGION} \
--project=${PROJECT} \
--quiet

【讨论】：