Build and Push Docker Images #8

	name: Build and Push Docker Images

	on:
	push:
	branches:
	- main
	workflow_dispatch:
	inputs:
	image:
	type: choice
	description: Image to build and push
	options:
	- simple
	- flask
	- legacy

	jobs:
	publish:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	image:
	- simple
	- flask
	- legacy

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: Check if image should be updated
	id: check
	run: \|
	if [ "${{ github.event.inputs.image }}" == "${{ matrix.image }}" ]; then
	echo "update=true" >> $GITHUB_STATE
	echo "Manually triggered build and push for ${{ matrix.image }}."
	elif git diff --quiet HEAD~1 -- "${{ matrix.image }}"; then
	echo "update=false" >> $GITHUB_STATE
	echo "No changes detected in ${{ matrix.image }}, skipping."
	else
	echo "update=true" >> $GITHUB_STATE
	echo "Changes detected in ${{ matrix.image }}, building and pushing."
	fi

	- name: Set up Docker Buildx
	if: steps.check.outputs.update == 'true'
	uses: docker/setup-buildx-action@v2

	- name: Log in to DockerHub
	if: steps.check.outputs.update == 'true'
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push Docker image
	if: steps.check.outputs.update == 'true'
	uses: docker/build-push-action@v5
	with:
	context: ${{ matrix.image }}
	push: true
	tags: pwncollege/challenge-${{ matrix.image }}:latest

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