Add new article #18

	name: Docker Push

	on:
	push:
	branches:
	- main
	env:
	IMAGE_NAME: charlie2code

	jobs:
	push:
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read
	steps:
	- uses: actions/checkout@v4

	- name: Build image
	run: \|
	docker build . \
	--file Dockerfile \
	--tag $IMAGE_NAME \
	--label "runnumber=${GITHUB_RUN_ID}" \
	--build-arg EMAILOCTOPUS_API_KEY=${{ secrets.EMAILOCTOPUS_API_KEY }} \
	--build-arg EMAILOCTOPUS_LIST_ID=${{ secrets.EMAILOCTOPUS_LIST_ID }} \
	--build-arg NEXT_UMAMI_ID=${{ secrets.NEXT_UMAMI_ID }}

	- name: Log in to registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u ${{ github.actor }} --password-stdin

	- name: Push image
	run: \|
	IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME

	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')

	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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