Add github workflow #1

	name: "Build and push to ECR"
	on:
	push:
	branches:
	- main
	jobs:
	BuildAndDeploy:
	name: "Build and Deploy"
	runs-on: ubuntu-latest

	permissions:
	id-token: write
	contents: read

	steps:
	- name: Checkout Repository
	uses: actions/checkout@v4

	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	profile: minimal
	override: true

	- name: Build Rust binary
	run: \|
	pip install cargo-lambda
	cargo lambda build --release

	- name: Cache cargo registry
	uses: actions/cache@v3
	continue-on-error: false
	with:
	path: \|
	~/.cargo/registry
	~/.cargo/git
	key: cargo-build-cache

	- name: Configure AWS Credentials
	uses: aws-actions/configure-aws-credentials@v4
	with:
	aws-region: us-east-1
	role-to-assume: arn:aws:iam::417600709600:role/online-judge-rust-github-actions
	role-session-name: GithubBuildAndDeploy

	- name: Login to Amazon ECR
	id: login-ecr
	uses: aws-actions/amazon-ecr-login@v2

	- name: Build, tag, and push image to Amazon ECR
	id: build-image
	env:
	ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
	ECR_REPOSITORY: "online-judge-rust"
	IMAGE_TAG: latest
	run: \|
	docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
	docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
	echo "::set-output name=image::$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG"

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