feat: use redis cache #30

	name: Docker UI

	on:
	push:
	# Publish `main` as Docker `latest` image.
	branches:
	- main

	# Publish `v1.2.3` tags as releases.
	tags:
	- v*

	env:
	IMAGE_NAME: icebreaker-ui

	jobs:
	# Push image to GitHub Packages.
	# See also https://docs.docker.com/docker-hub/builds/
	push:
	runs-on: ubuntu-latest
	if: github.event_name == 'push'

	steps:
	- uses: actions/checkout@v4

	- name: Build image
	run: docker build frontend --build-arg API_URL=https://eerl-campaigns.epfl.ch --build-arg API_PATH=/api --build-arg AUTH_CLIENT_ID=icebreaker-ui --tag $IMAGE_NAME

	- name: Log into registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin

	- name: Push image
	run: \|
	IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/$IMAGE_NAME

	# Change all uppercase to lowercase
	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')

	# Strip git ref prefix from version
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')

	# Strip "v" prefix from tag name
	[[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION \| sed -e 's/^v//')

	# Use Docker `latest` tag convention
	[ "$VERSION" == "main" ] && VERSION=latest

	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION

	docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
	docker push $IMAGE_ID:$VERSION

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