added: docker multi-platform support (buildx)

CHANGELOG.md

@@ -1,12 +1,14 @@
 # Changelog
 
-## [Unreleased]
+## [1.2.0] - 2023-11-17
 
 ### Added
 
 - Page Titles to Login, Logout and Urls Page
 - Added Inspect Page, which displays information about a URL and allows to delete it
 - Added Inspect Form group to Urls that redirects to Inspect Page
+- Added Docker-Multiplatform support (future images will contain linux/amd64 and linux/arm64 images)
+- Added alpine images
 
 ## Changed
 

Dockerfile

@@ -1,17 +1,19 @@
 #See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
 
-FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+ARG BASE=8.0
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/aspnet:$BASE AS base
 USER app
 WORKDIR /app
 EXPOSE 8080
 
-FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0 AS build
 ARG BUILD_CONFIGURATION=Release
 WORKDIR /src
 COPY ["JustShortIt.csproj", "."]
 RUN dotnet restore "./././JustShortIt.csproj"
 COPY . .
 WORKDIR "/src/."
+ARG TARGETPLATFORM
 RUN dotnet build "./JustShortIt.csproj" -c $BUILD_CONFIGURATION -o /app/build
 
 FROM build AS publish