chore: add workflow to build docker on tag #804

	name: Validations

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	validations:
	runs-on: ubuntu-latest

	services: # We use GH services because we cannot mount a volume as we do in the docker-compose
	postgres:
	image: postgres
	env:
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: social_service
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	ports:
	- 5432:5432
	redis:
	image: redis
	# Set health checks to wait until redis has started
	options: >-
	--health-cmd "redis-cli ping"
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	ports:
	- 6379:6379

	steps:
	- name: Install Protoc
	uses: arduino/setup-protoc@v1
	- uses: actions/checkout@v2
	- name: Build
	run: cargo build --verbose
	- name: Test
	run: cargo test --verbose
	env:
	DB_HOST: localhost:5432
	REDIS_HOST: localhost

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