Add gzip encoding #59

	name: Docker Image CI

	on:
	push:
	branches: [ main ]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:

	# https://github.com/docker/login-action
	- name: Login to DockerHub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	# https://github.com/docker/build-push-action
	- name: Build and push
	uses: docker/build-push-action@v2
	with:
	push: true
	tags: 500farm/vastai-exporter:latest

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