def mount_container_filesystem():
import logging
from conu import DockerBackend
backend = DockerBackend(logging_level=logging.DEBUG)
image = backend.ImageClass(IMAGE_NAME)
# run nginx container
container = image.run_via_binary()
# mount container filesystem
with container.mount() as fs:
# check presence of nginx configuration file
assert fs.file_is_present('/etc/nginx/nginx.conf')
# check presence of default nginx page
index_path = '/usr/share/nginx/html/index.html'
assert fs.file_is_present(index_path)
# and its text
index_text = fs.read_file('/usr/share/nginx/html/index.html')
assert '<h1>Welcome to nginx!</h1>' in index_text
print(index_text)
print('Success!')
# cleanup
container.delete(force=True)
def run_container(local_dir):
"""
serve path `local_dir` using the python http webserver in a docker container
:param local_dir: str, path to the directory, it should exist
:return: instance of DockerContainer
"""
image_name = "registry.fedoraproject.org/fedora"
image_tag = "27"
# we'll run our container using docker engine
backend = DockerBackend(logging_level=logging.DEBUG)
image = backend.ImageClass(image_name, tag=image_tag)
# is the image present?
try:
image.get_metadata()
except Exception:
image.pull()
# helper class to create `docker run ...` -- we want test the same experience as our users
b = DockerRunBuilder(
# the command to run in a container
command=[
"python3", "-m", "http.server", "--bind", "0.0.0.0",
"%d" % port
],
# additional options passed to `run` command
additional_opts=["-v",
"%s:/webroot" % local_dir, "-w", "/webroot"])
# let's run the container (in the background)
container = image.run_via_binary(run_command_instance=b)
return container
def __init__(self, section: str, **kwargs):
super().__init__(section, **kwargs)
if self.LOG.name != LoggerConst.DEFAULT_NAME:
self.LOG.warn(
"Using Docker Swarm as container manager."
"This is not recommended for distributed environments")
self.docker_api = self.docker_compass.get_api()
self.docker_backend = DockerBackend(logging_level=logging.ERROR)
def docker_backend():
"""
pytest fixture which mimics context manager: it provides new instance of DockerBackend and
cleans after it once it's used; sample usage:
::
def test_my_container(docker_backend):
image = docker_backend.ImageClass("fedora", tag="27")
:return: instance of DockerBackend
"""
backend = DockerBackend(logging_level=logging.DEBUG).__enter__()
yield backend
backend._clean()
def ipsilon_container(docker_backend: conu.DockerBackend,
docker_network: dict) -> conu.DockerContainer:
"""
Fixture preparing and yielding an Ipsilon container.
Args:
docker_backend: The Docker backend (fixture).
docker_network: The Docker network ID (fixture).
Yields:
The Ipsilon container.
"""
# Define the container and start it
image_name = "bodhi-ci-integration-ipsilon"
image = docker_backend.ImageClass(image_name)
container = image.run_via_api()
container.start()
docker_backend.d.connect_container_to_network(
container.get_id(),
docker_network["Id"],
aliases=["ipsilon", "ipsilon.ci", "id.dev.fedoraproject.org"])
# we need to wait for the broker to start listening
container.wait_for_port(80, timeout=30)
yield container
container.kill()
container.delete()
def test_oc_s2i_remote(self):
api_key = get_oc_api_token()
with OpenshiftBackend(api_key=api_key, logging_level=logging.DEBUG) as openshift_backend:
openshift_backend.get_status()
with DockerBackend(logging_level=logging.DEBUG) as backend:
python_image = backend.ImageClass(CENTOS_PYTHON_3)
login_to_registry(OC_CLUSTER_USER, token=api_key)
app_name = openshift_backend.create_new_app_from_source(
python_image,
source="https://github.com/openshift/django-ex.git",
project=MY_PROJECT)
try:
openshift_backend.wait_for_service(
app_name=app_name,
port=8080,
expected_output='Welcome to your Django application on OpenShift',
timeout=300)
finally:
openshift_backend.get_logs(app_name)
openshift_backend.clean_project(app_name)
def _get_swarm_endpoints(self):
if self.open_sea:
from conu import DockerBackend # lazy import
endpoints = []
for cont in DockerBackend(
logging_level=logging.ERROR).list_containers():
details = cont.inspect()
svc = details.get('Config', {}).get('Labels', {}).get(
'com.docker.swarm.service.name', '')
if svc == self.service_name:
address = details.get('NetworkSettings', {}) \
.get('Networks', {}) \
.get(DockerConst.NETWORK, {}) \
.get('IPAddress', None)
endpoints += [address] if address else []
elif self.port is not None:
endpoints = [self.host]
else:
# TODO use router address
endpoints = []
return endpoints
def test_deploy_image(self):
api_key = get_oc_api_token()
with OpenshiftBackend(api_key=api_key, logging_level=logging.DEBUG) as openshift_backend:
with DockerBackend(logging_level=logging.DEBUG) as backend:
# builder image
mariadb_image = backend.ImageClass(CENTOS_MARIADB_10_2)
# docker login inside OpenShift internal registry
login_to_registry(OC_CLUSTER_USER, token=api_key)
# create new app from remote source in OpenShift cluster
app_name = openshift_backend.deploy_image(mariadb_image,
oc_new_app_args=[
"--env", "MYSQL_ROOT_PASSWORD=test"],
project=MY_PROJECT)
try:
# wait until service is ready to accept requests
openshift_backend.wait_for_service(
app_name=app_name,
port=3306,
timeout=300)
assert openshift_backend.all_pods_are_ready(app_name)
finally:
openshift_backend.get_logs(app_name)
openshift_backend.clean_project(app_name)
def test_oc_s2i_local(self):
api_key = get_oc_api_token()
with OpenshiftBackend(api_key=api_key, logging_level=logging.DEBUG) as openshift_backend:
openshift_backend.get_status()
with DockerBackend(logging_level=logging.DEBUG) as backend:
python_image = backend.ImageClass(CENTOS_PYTHON_3)
login_to_registry(OC_CLUSTER_USER, token=api_key)
app_name = openshift_backend.create_new_app_from_source(
python_image,
source="examples/openshift/standalone-test-app",
project=MY_PROJECT)
try:
openshift_backend.wait_for_service(
app_name=app_name,
port=8080,
expected_output="Hello World from standalone WSGI application!",
timeout=300)
finally:
openshift_backend.get_logs(app_name)
openshift_backend.clean_project(app_name)
def basics():
import logging
from conu import DockerBackend
# prepare backend and image
backend = DockerBackend(logging_level=logging.DEBUG)
image = backend.ImageClass(IMAGE_NAME)
# run container
container = image.run_via_binary()
assert container.is_running()
print('Success!')
# cleanup
container.stop()
container.delete()
def test_list_containers():
with DockerBackend() as backend:
l = len(backend.list_containers())
assert l >= 0
image = backend.ImageClass(FEDORA_MINIMAL_REPOSITORY,
tag=FEDORA_MINIMAL_REPOSITORY_TAG,
pull_policy=DockerImagePullPolicy.NEVER)
drb = DockerRunBuilder(command=["sleep", "1"],
additional_opts=["-e", "FOO=BAR", "-p", "1234"])
container = image.run_via_binary(run_command_instance=drb)
try:
container_list = backend.list_containers()
l = len(container_list)
assert l >= 1
cont_under_test = [
x for x in container_list
if x.metadata.identifier == container.get_id()
][0]
assert cont_under_test.metadata.image
# TODO: implement parsing docker_client.containers metadata
# assert cont_under_test.metadata.command
# assert cont_under_test.metadata.env_variables == {"FOO": "BAR"}
# assert cont_under_test.metadata.exposed_ports == ["1234"]
# assert cont_under_test.get_IPv4s()
finally:
container.delete(force=True)
def ipsilon_container(docker_backend: conu.DockerBackend,
docker_network: dict) -> conu.DockerContainer:
"""
Fixture preparing and yielding an Ipsilon container.
Args:
docker_backend: The Docker backend (fixture).
docker_network: The Docker network ID (fixture).
Yields:
The Ipsilon container.
"""
# Define the container and start it
image_name = "bodhi-ci-integration-ipsilon"
image = docker_backend.ImageClass(image_name)
run_opts = [
"--rm",
"--name",
"ipsilon",
"--network",
docker_network.get_id(),
"--network-alias",
"ipsilon",
"--network-alias",
"ipsilon.ci",
"--network-alias",
"id.dev.fedoraproject.org",
]
container = image.run_via_binary(additional_opts=run_opts)
container.start()
# we need to wait for the broker to start listening
container.wait_for_port(80, timeout=30)
yield container
stop_and_delete(container)
def test_container_metadata():
with DockerBackend(logging_level=10) as backend:
image = backend.ImageClass(FEDORA_MINIMAL_REPOSITORY,
tag=FEDORA_MINIMAL_REPOSITORY_TAG)
c = image.run_via_binary(
DockerRunBuilder(command=["cat"],
additional_opts=[
'-i', '-t', '--name', 'my_container', '-p',
'1234:12345', '-p', '123:12345', '-p', '8080',
'--hostname', 'my_hostname', '-e',
'ENV1=my_env', '-e', 'ASD=', '-e', 'A=B=C=D',
'-e', 'XYZ', '-l', 'testlabel1=testvalue1'
]))
try:
container_metadata = c.get_metadata()
assert container_metadata.command == ["cat"]
assert container_metadata.name == "my_container"
assert container_metadata.env_variables["ENV1"] == "my_env"
assert container_metadata.env_variables["ASD"] == ""
assert container_metadata.env_variables["A"] == "B=C=D"
assert container_metadata.hostname == "my_hostname"
assert "XYZ" not in list(container_metadata.env_variables.keys())
assert '12345/tcp' in container_metadata.port_mappings
assert container_metadata.port_mappings['12345/tcp'] == [1234, 123]
assert '8080/tcp' in container_metadata.port_mappings
assert container_metadata.exposed_ports == [
"12345/tcp", "8080/tcp"
]
assert container_metadata.labels["testlabel1"] == "testvalue1"
assert container_metadata.status == ContainerStatus.RUNNING
finally:
c.delete(force=True)
def test_webserver():
# let's setup the directory to serve first
temp_dir_name = "shiny-%s" % random_str()
temp_dir_path = os.path.join("/tmp", temp_dir_name)
with DockerBackend(logging_level=logging.DEBUG) as backend:
# helper class to create and initialize the dir -- will be removed once we
# leave the context manager
with Directory(temp_dir_path, mode=0o0700):
# let's put some file in it
with open(os.path.join(temp_dir_path, "candle"), "w") as fd:
fd.write("You no take candle!")
container = run_container(backend, temp_dir_path)
try:
# we need to wait for the webserver to start serving
container.wait_for_port(port)
# GET on /
http_response = container.http_request(path="/", port=port)
assert http_response.ok
assert '<a href="candle">candle</a>' in http_response.content.decode(
"utf-8")
# now GETting the file
assert 'You no take candle!' in container.http_request(
path="/candle", port=port).content.decode("utf-8")
finally:
container.kill()
container.delete()
def test_pull_never():
with DockerBackend() as backend:
with pytest.raises(docker.errors.DockerException):
get_client().inspect_image("docker.io/library/busybox:1.25.1")
image = backend.ImageClass("docker.io/library/busybox", tag="1.25.1",
pull_policy=DockerImagePullPolicy.NEVER)
assert not image.is_present()
def test_oc_s2i_local_mariadb(self):
api_key = get_oc_api_token()
with OpenshiftBackend(api_key=api_key, logging_level=logging.DEBUG) as openshift_backend:
openshift_backend.get_status()
with DockerBackend(logging_level=logging.DEBUG) as backend:
mariadb_image = backend.ImageClass(CENTOS_MARIADB_10_2)
login_to_registry(OC_CLUSTER_USER, token=api_key)
app_name = openshift_backend.create_new_app_from_source(
mariadb_image,
oc_new_app_args=[
"--env", "MYSQL_ROOT_PASSWORD=test",
"--env", "MYSQL_OPERATIONS_USER=test1",
"--env", "MYSQL_OPERATIONS_PASSWORD=test1",
"--env", "MYSQL_DATABASE=testdb",
"--env", "MYSQL_USER=user1",
"--env", "MYSQL_PASSWORD=user1"],
source="examples/openshift/extend-mariadb-image",
project=MY_PROJECT)
openshift_backend.get_status()
try:
openshift_backend.wait_for_service(
app_name=app_name,
port=3306,
timeout=300)
assert openshift_backend.all_pods_are_ready(app_name)
finally:
openshift_backend.get_logs(app_name)
openshift_backend.clean_project(app_name)
def test_list_deployments(self):
api_key = get_oc_api_token()
with K8sBackend(api_key=api_key) as k8s_backend:
namespace = k8s_backend.create_namespace()
with DockerBackend() as backend:
postgres_image = backend.ImageClass("centos/postgresql-10-centos7")
postgres_image_metadata = postgres_image.get_metadata()
# set up env variables
db_env_variables = {"POSTGRESQL_USER": "******",
"POSTGRESQL_PASSWORD": "******",
"POSTGRESQL_DATABASE": "db"}
postgres_image_metadata.env_variables.update(db_env_variables)
db_labels = {"app": "postgres"}
db_deployment = Deployment(name="database", selector=db_labels, labels=db_labels,
image_metadata=postgres_image_metadata,
namespace=namespace,
create_in_cluster=True)
try:
db_deployment.wait(200)
assert db_deployment.all_pods_ready()
assert any(db_deployment.name == d.name for d in k8s_backend.list_deployments())
finally:
db_deployment.delete()
k8s_backend.delete_namespace(namespace)
def test_database_deployment():
with K8sBackend() as k8s_backend:
namespace = k8s_backend.create_namespace()
with DockerBackend() as backend:
postgres_image = backend.ImageClass("centos/postgresql-10-centos7")
postgres_image_metadata = postgres_image.get_metadata()
# set up env variables
db_env_variables = {"POSTGRESQL_USER": "******",
"POSTGRESQL_PASSWORD": "******",
"POSTGRESQL_DATABASE": "db"}
postgres_image_metadata.env_variables.update(db_env_variables)
db_labels = {"app": "postgres"}
db_service = Service(name="database", ports=["5432"], selector=db_labels,
namespace=namespace,
create_in_cluster=True)
db_deployment = Deployment(name="database", selector=db_labels, labels=db_labels,
image_metadata=postgres_image_metadata, namespace=namespace,
create_in_cluster=True)
try:
db_deployment.wait(200)
assert db_deployment.all_pods_ready()
finally:
db_deployment.delete()
db_service.delete()
k8s_backend.delete_namespace(namespace)
def test_run_via_api():
with DockerBackend() as backend:
image = backend.ImageClass(FEDORA_MINIMAL_REPOSITORY,
tag=FEDORA_MINIMAL_REPOSITORY_TAG)
docker_run_builder = DockerRunBuilder(additional_opts=[
'-l', 'hello=there', '-l', 'oh=noo', '--name', 'test', '-d',
'--hostname', 'my_hostname', '--rm', '--memory', '1G', '--workdir',
'/tmp', '--env', 'ENV1=my_env', '-p', '123:12345', '--cap-add',
'MKNOD', '--cap-add', 'SYS_ADMIN', '--cap-drop', 'SYS_ADMIN',
'--dns', 'www.example.com', '--volume', '/tmp:/tmp',
'--no-healthcheck'
],
command=['sleep', '10'])
parameters = docker_run_builder.get_parameters()
c = image.run_via_api(parameters)
try:
assert "Config" in c.inspect()
assert c.get_id() == str(c)
assert repr(c)
assert isinstance(c.get_id(), string_types)
finally:
c.delete(force=True)
def test_conu():
"""
Function tests memcached container with conu
"""
backend = DockerBackend(logging_level=logging.DEBUG)
i = backend.ImageClass("docker.io/modularitycontainers/memcached")
i.pull()
rb = conu.DockerRunBuilder(command=["/files/memcached.sh"])
c = i.run_via_binary(rb)
assert c.is_running()
c.wait_for_port(11211)
session = pexpect.spawn("telnet %s 11211 " % c.get_IPv4s()[0])
session.sendline('set Test 0 100 10')
session.sendline('JournalDev')
assert session.expect('STORED') == 0
session.sendline('quit')
def rabbitmq_container(docker_backend: conu.DockerBackend,
docker_network: str) -> conu.DockerContainer:
"""
Fixture preparing and yielding a RabbitMQ container.
Args:
docker_backend: The Docker backend (fixture).
docker_network: The Docker network ID (fixture).
Yields:
The RabbitMQ container.
"""
# Define the container and start it
image_name = "bodhi-ci-integration-rabbitmq"
image = docker_backend.ImageClass(image_name)
container = image.run_via_api()
container.start()
docker_backend.d.connect_container_to_network(
container.get_id(),
docker_network["Id"],
aliases=["rabbitmq", "rabbitmq.ci"])
# we need to wait for the broker to start listening
container.wait_for_port(5672, timeout=30)
# wait until the embedded consumer is connected
for i in range(15):
if _consumer_is_connected(container, "dumper"):
break
print("Consumer not connected yet, retrying")
time.sleep(1)
else:
raise RuntimeError(
"The Fedora Messaging consumer did not connect in time")
yield container
container.kill()
container.delete()
def _get_target_instance(target_name):
"""
Get the Container/Image instance for the given name.
(Container is the first choice.)
:param target_name: str
:return: Container/Image
"""
with DockerBackend(logging_level=logging.NOTSET) as backend:
try:
cont = backend.ContainerClass(image=None,
container_id=target_name)
return cont
except NotFound:
name_split = target_name.split(':')
if len(name_split) == 2:
name, tag = name_split
image = backend.ImageClass(
repository=name,
tag=tag,
pull_policy=DockerImagePullPolicy.NEVER)
else:
image = backend.ImageClass(
repository=target_name,
pull_policy=DockerImagePullPolicy.NEVER)
if image.is_present():
return image
return None
def self_cleanup():
import logging
import pytest
from conu import DockerBackend, DockerRunBuilder
backend = DockerBackend(logging_level=logging.DEBUG)
image = backend.ImageClass(IMAGE_NAME)
# alternative of docker run --rm nginx
run_params = DockerRunBuilder(additional_opts=['--rm'])
container = image.run_via_binary(run_params)
assert container.is_running()
# check container is removed when stopped
container.stop()
with pytest.raises(Exception):
container.inspect()
def test_list_images():
with DockerBackend() as backend:
image_list = backend.list_images()
assert len(image_list) > 0
the_id = "756d8881fb18271a1d55f6ee7e355aaf38fb2973f5fbb0416cf5de628624318b"
image_under_test = [x for x in image_list if x.metadata.identifier == the_id][0]
assert image_under_test.metadata.digest
assert image_under_test.metadata.repo_digests
def test_pull_always():
with DockerBackend() as backend:
image = backend.ImageClass("docker.io/library/busybox", tag="1.25.1",
pull_policy=DockerImagePullPolicy.ALWAYS)
try:
assert image.is_present()
finally:
image.rmi(force=True)
def execute_container_testing_cmd():
with DockerBackend() as backed:
image = backed.ImageClass("nginix_rpw", "1.0.0")
cmd = DockerRunBuilder(command=["which", "nginx"])
our_container = image.run_via_binary(cmd)
assert our_container.exit_code() == 0, "command not found"
print("******* ngnix was installed in container *******************8")
def docker_backend():
"""Fixture yielding a Conu Docker backend.
Yields:
conu.DockerBackend: The Docker backend.
"""
# Redefined to set the scope
with DockerBackend(logging_level=logging.DEBUG) as backend:
yield backend
def test_pull_if_not_present():
with DockerBackend() as backend:
with pytest.raises(docker.errors.DockerException):
get_client().inspect_image("docker.io/library/busybox:1.25.1")
image = backend.ImageClass("docker.io/library/busybox", tag="1.25.1")
try:
assert image.is_present()
finally:
image.rmi(force=True)
def check_output():
import logging
from conu import DockerBackend, DockerRunBuilder
backend = DockerBackend(logging_level=logging.DEBUG)
image = backend.ImageClass(IMAGE_NAME)
# run own command in container
message = 'Hello DevConf.cz 2018!'
run_params = DockerRunBuilder(command=['echo', message])
container = image.run_via_binary(run_params)
# check it went ok
assert container.logs().decode('utf-8') == message + '\n'
print('Success!')
# cleanup
container.delete(force=True)
def check_localhost_port():
import logging
import time
from conu import DockerBackend, check_port
backend = DockerBackend(logging_level=logging.DEBUG)
image = backend.ImageClass(IMAGE_NAME)
# publish 8080 port
container = image.run_via_binary(additional_opts=['-p', '8080:8080'])
time.sleep(2)
# check it is published correctly
check_port(host='localhost', port=8080)
print('Success!')
# cleanup
container.delete(force=True)
