test: package integration as python package

Ticket: QA-1170
Changelog: Packaged integration test suite as a python package, so it can be imported in other Mender client related tests.
Signed-off-by: Dusan Haustein <dusan.haustein@northern.tech>

Author: dhaustein

backend-tests/docker/docker-compose.backend-tests.yml

@@ -10,7 +10,7 @@ services:
             - /var/run/docker.sock:/var/run/docker.sock
         command: ${PYTEST_ARGS}
         environment:
-            PYTHONPATH: "/testutils"
+            PYTHONPATH: "/"
             PYTHONDONTWRITEBYTECODE: 1
             TESTS_IN_PARALLEL: ${TESTS_IN_PARALLEL}
             TENANTADM_STRIPE_API_KEY: ${STRIPE_API_KEY}

pyproject.toml

@@ -1,6 +1,53 @@
+[build-system]
+requires = ["setuptools>=80.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "mender-integration"
+version = "0.1.0"
+description = "Mender Integration Tests Suite"
+readme = "README.md"
+license = { text = "Apache-2.0" }
+
+requires-python = ">=3.12"
+
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: Apache Software License",
+    "Operating System :: OS Independent",
+]
+
+dependencies = [
+    "cryptography==45.0.7",
+    "docker==7.1.0",
+    "filelock==3.19.1",
+    "kubernetes==33.1.0",
+    "msgpack==1.1.1",
+    "py3dns==4.0.2",
+    "pymongo==4.14.1",
+    "pytest==8.4.1",
+    "pytest-html==4.1.1",
+    "pytest-metadata==3.1.1",
+    "pytest-timeout==2.4.0",
+    "pytest-xdist==3.8.0",
+    "redo==3.0.0",
+    "requests==2.32.5",
+    "urllib3==1.26.20",
+    "websockets==15.0.1",
+    "flaky==3.8.1",
+    "stripe==12.5.0",
+    "aiosmtpd==1.4.6",
+]
+
+[tool.setuptools]
+packages = ["tests", "testutils"]
+
+# include compose files so they can be used downstream
+[tool.setuptools.package-data]
+"*" = ["docker-compose*.yml", "other-components*.yml"]
 
 [tool.black]
-target-version = ['py38']
+target-version = ['py312']
 include = '''
 (
   /(

tests/conftest.py

@@ -465,3 +465,20 @@ def version_is_minimum(version, min_version):
         return True
 
     return version_parsed >= packaging.version.Version(min_version)
+
+
+@pytest.fixture(scope="session")
+def docker_compose_demo_server(request):
+    """
+    Start demo server using docker compose files from integration package
+    """
+    from testutils.infra.container_manager import factory
+    from MenderAPI import reset_mender_api
+
+    container_factory = factory.get_factory()
+    env = container_factory.get_standard_setup(num_clients=0)  # just the demo server with no clients
+    request.addfinalizer(env.teardown)
+
+    env.setup()
+    reset_mender_api(env)
+    yield env