docker: build and push docker builder image (#297) #3

	name: "Update builder docker image"

	on:
	push:
	branches: ["main"]
	paths:
	- "Dockerfile"

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Set up environment
	uses: ./.github/workflows/env
	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Set current timestamp tag
	id: tag
	run: \|
	echo "tag=$(date +%Y%m%d%H%M)" >> $GITHUB_OUTPUT
	- name: Build and push
	uses: docker/build-push-action@v6
	with:
	push: true
	file: Dockerfile
	platforms: linux/amd64,linux/arm64
	tags: otel/opentelemetry-ebpf-profiler-dev:latest,otel/opentelemetry-ebpf-profiler-dev:${{ steps.tag.outputs.tag }}

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