WebSocketGaugeServer - Build Docker image

How to build image

Install Docker and simply build by Dockerfile

docker build --tag (your tag name) .

If you want to build on non-x64 enviromnent, you may have to change ---platform option of the Dockerfile.

# Select architecture of build platform
# Change platform option for your build platform
FROM --platform=linux/amd64 mcr.microsoft.com/dotnet/sdk:6.0-bullseye-slim AS build

How to build multi-platform image by buildx

Dockerfile of this source repository can be used to build multi-platform image with buildx.

1. Install qemu Docker image and setup builder

   docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
   docker buildx rm builder
   docker buildx create --name builder --driver docker-container --use
   docker buildx inspect --bootstrap
   

2. Change --platform option of Dockerfile (This step is not needed if you build the image on linux-x64)

   # Select architecture of build platform
   # Change platform option for your build platform
   FROM --platform=linux/amd64 mcr.microsoft.com/dotnet/sdk:6.0-bullseye-slim AS build
   

3. Login to docker hub (to upload image to docker hub) (This may not be needed to build the image to local)

   docker login
   

4. Finally, build the image with buildx

   docker buildx build --tag (your image tag name) --platform linux/amd64,linux/arm64,linux/arm/v7 --push .
   

   Reference

   • https://stackoverflow.com/questions/60080264/docker-cannot-build-multi-platform-images-with-docker-buildx