Update readme with more detailed information about privileged ports a… #1182

	name: 'Tests'

	on: [ push ]
	jobs:
	Tests:
	runs-on: ubuntu-24.04
	env:
	TZ: 'Europe/Zurich'
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up JDK 21
	uses: actions/setup-java@v4
	with:
	java-version: 21
	distribution: 'oracle'

	- name: Create apparmor profile for rootlesskit
	run: \|
	echo "This is necessary since ubuntu 24.04 and later dont allow unprivileged processes to create user namespaces. See: https://docs.docker.com/engine/security/rootless/#distribution-specific-hint"

	filename=$(echo $HOME/bin/rootlesskit \| sed -e s@^/@@ -e s@/@.@g)
	cat <<EOF > ~/${filename}
	abi <abi/4.0>,
	include <tunables/global>
	"$HOME/bin/rootlesskit" flags=(unconfined) {
	userns,
	include if exists <local/${filename}>
	}
	EOF

	sudo mv ~/${filename} /etc/apparmor.d/${filename}
	sudo systemctl restart apparmor.service

	- name: Disable rootful docker
	run: \|
	sudo systemctl disable --now docker.service docker.socket
	sudo rm /var/run/docker.sock

	- name: Setup and use rootless docker
	run: curl -fsSL https://get.docker.com/rootless \| sh

	- name: Assert docker is running rootless
	run: \|
	if [[ "$(docker info --format '{{ .ClientInfo.Context }}')" != 'rootless' ]]
	then
	echo "Rootless docker isn't in use and probably wasn't set up properly"
	exit 1
	fi

	- name: Use Maven to run unittest, integration tests and check coverage
	run: mvn clean verify

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