def launch(image, name):
"""
Create and start a container.
\b
<image> - Image to use as source. e.g. ubuntu/18.04 or alpine/3.11.
Only images in https://images.linuxcontainers.org
are supported at this time. Run 'yurt images' to list them.
NAME - Container name
\b
Container names must:
* be between 1 and 63 characters long
* be made up exclusively of letters, numbers and dashes from the ASCII table
* not start with a digit or a dash
* not end with a dash
EXAMPLES:
\b
$ yurt launch ubuntu/18.04 c1 - Create and start an ubuntu 18.04 container.
"""
try:
vm.ensure_is_ready()
lxc.launch("images", image, name)
except YurtException as e:
logging.error(e.message)
def test_ping_between_instances(self):
instance1_name = f"test-instance-{util.random_string()}"
instance2_name = f"test-instance-{util.random_string()}"
lxc.launch("images:alpine/3.10", instance1_name)
lxc.launch("images:alpine/3.10", instance2_name)
lxc.exec_(instance1_name, ["ping", "-c1", instance2_name])
def test_launch(self):
instance_name = f"test-instance-{util.random_string()}"
logging.info(f"Test launch: {instance_name}.")
lxc.launch("images:alpine/3.10", instance_name)
instance = util.find(
lambda i: i["Name"] == instance_name and i["Status"] == "Running",
lxc.list_(), None)
self.assertIsNotNone(instance)
def test_delete(self):
instance_name = f"test-instance-{util.random_string()}"
lxc.launch("images:alpine/3.10", instance_name)
lxc.stop([instance_name])
lxc.delete([instance_name])
instance = util.find(lambda i: i["Name"] == instance_name, lxc.list_(),
None)
self.assertIsNone(instance)
def test_ping_between_instances(self):
util.mark("test_ping_between_instances")
instance1_name = util.generate_instance_name()
instance2_name = util.generate_instance_name()
lxc.launch("images", "alpine/3.10", instance1_name)
lxc.launch("images", "alpine/3.10", instance2_name)
res = lxc.exec_(instance1_name, ["ping", "-c1", instance2_name])
self.assertTrue(res.exit_code == 0)
def test_launch(self):
util.mark("test_launch")
instance_name = util.generate_instance_name()
lxc.launch("images", "alpine/3.10", instance_name)
instance = yurt_util.find(
lambda i: i["Name"] == instance_name and i["Status"] == "Running",
lxc.list_(),
None
)
self.assertIsNotNone(instance)
def test_ping_from_host(self):
instance_name = f"test-instance-{util.random_string()}"
lxc.launch("images:alpine/3.10", instance_name)
instance = util.find(
lambda i: i["Name"] == instance_name and i["Status"] == "Running",
lxc.list_(), None)
self.assertIsNotNone(instance)
logging.info(f"Test ping: {instance_name}")
ip_address = instance["IP Address"]
self.assertTrue(ping(ip_address))
def test_delete(self):
util.mark("test_delete")
instance_name = util.generate_instance_name()
lxc.launch("images", "alpine/3.10", instance_name)
lxc.stop([instance_name])
lxc.delete([instance_name])
instance = yurt_util.find(
lambda i: i["Name"] == instance_name,
lxc.list_(),
None
)
self.assertIsNone(instance)
def test_ping_from_host(self):
util.mark("test_ping_from_host")
instance_name = util.generate_instance_name()
lxc.launch("images", "alpine/3.10", instance_name)
instance = yurt_util.find(
lambda i: i["Name"] == instance_name and i["Status"] == "Running",
lxc.list_(),
None
)
self.assertIsNotNone(instance)
logging.info(f"Test ping: {instance_name}")
ip_address = instance["IP Address"]
self.assertTrue(util.ping(ip_address))