Update Docker image publish code

Dockerfile

@@ -1,7 +1,7 @@
 # 1. Build Stage
 FROM rust:1.70 as builder
 
-WORKDIR /usr/src/HelloWorld
+WORKDIR /usr/src/hello_world
 COPY . .
 RUN cargo build --release
 
@@ -11,6 +11,6 @@ RUN cargo test --release
 
 # 3. Distroless Stage
 FROM gcr.io/distroless/cc-debian11
-COPY --from=builder /usr/src/HelloWorld/target/release/HelloWorld /usr/local/bin/HelloWorld
+COPY --from=builder /usr/src/hello_world/target/release/hello_world /usr/local/bin/hello_world
 
-CMD ["HelloWorld"]
+CMD ["hello_world"]

README.md

@@ -37,6 +37,12 @@ This project uses GitHub Actions for continuous integration. Upon each push to y
 
 The artifacts will then be available for download from the "Actions" tab on your repository and also from the "Releases" tab for release events.
 
+## Docker image
+
+This project also contains `buildpush.sh` which will build a distroless Docker image with the application as the entry point. By default, the 
+script will push the built multi-arch images to DockerHub. [Here](https://hub.docker.com/r/richardsondev/hello_world/tags) is an example of 
+what it would look like.
+
 ## Contributing
 
 Contributions are welcome! Please feel free to submit a Pull Request.

buildpush.sh

@@ -3,12 +3,13 @@
 # Builds distroless Docker images with the application and pushes them to Docker Hub
 # Currently, intended to be run from a local machine
 
-APP_NAME="<Your application>"
-DOCKER_HUB="<Your Docker Hub username>"
+APP_NAME="hello_world"
+DOCKER_HUB="YourDockerHubUsername"
 
 # Step 1: Build the Docker image and push to Docker Hub
 # This builds and pushes ARM32, ARM64, and X64 images
 docker buildx create --use --name mybuilder || true
 docker buildx use mybuilder
 docker buildx inspect --bootstrap
-docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 -t $DOCKER_HUB/$APP_NAME:latest --push
+docker buildx build . --platform linux/amd64,linux/arm64,linux/arm/v7 -t $DOCKER_HUB/$APP_NAME:latest --push
+