Updates dockerfiles for Tutorials to latest, tested multi stage build…

… tools chains (C#, Node, Python, React). Go handled by dapr#1058

Signed-off-by: Paul Yuknewicz <[email protected]>

.gitignore

@@ -32,6 +32,7 @@ Debug/
 .settings/
 .metadata
 .project
+out/
 
 # Package Files #
 *.jar

tutorials/distributed-calculator/csharp/Dockerfile

@@ -1,7 +1,22 @@
-# Note: we cannot do a staged dotnet docker build here for arm/arm64. 
+# Use the official .NET 7 SDK image to build the application
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:7.0 AS build
+WORKDIR /app
+
+# Copy the project file and restore dependencies
+COPY *.csproj ./
+RUN dotnet clean
+RUN dotnet restore --disable-parallel
+
+# Copy the rest of the application code and build the application
+COPY . ./
+RUN dotnet publish -c Release -o out
 
-# Build runtime image
-FROM mcr.microsoft.com/dotnet/aspnet:7.0
+# Use the official .NET 7 runtime image to run the application
+FROM mcr.microsoft.com/dotnet/aspnet:7.0 AS runtime
 WORKDIR /app
-COPY  /out .
+COPY --from=build /app/out .
+
+# Expose the port the application runs on
+EXPOSE 80
+
 ENTRYPOINT ["dotnet", "Subtract.dll"]

tutorials/distributed-calculator/node/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:17-alpine
+FROM node:20-alpine
 WORKDIR /usr/src/app
 COPY . .
 RUN npm install

tutorials/distributed-calculator/python/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.7-alpine
+FROM python:3.12-alpine
 COPY . /app
 WORKDIR /app
 RUN pip install flask flask_cors

tutorials/distributed-calculator/react-calculator/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:17-alpine
+FROM node:20-alpine
 WORKDIR /usr/src/app
 COPY . .
 RUN npm install