def utility_vm():
""" Deploy an utility vm for tests to use.
This fixture creates a vm on provider and then receives its ip.
After the test run vm is deleted from provider.
"""
try:
data = cfme_data['utility_vm']
injected_user_cred = SSHCredential.from_config(
data['injected_credentials'])
try:
with open(os.path.expanduser('~/.ssh/id_rsa.pub')) as f:
authorized_ssh_keys = f.read()
except FileNotFoundError:
authorized_ssh_keys = None
vm = deploy_template(
data.provider,
random_vm_name('proxy'),
template_name=data.template_name,
# The naming is not great. It comes from
# https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.2/
# html-single/python_sdk_guide/index#Starting_a_Virtual_Machine_with_Cloud-Init
initialization=dict(user_name=injected_user_cred.principal,
root_password=injected_user_cred.secret,
authorized_ssh_keys=authorized_ssh_keys))
except AttributeError:
msg = 'Missing utility_vm data from cfme_data.yaml, cannot deploy the utility vm.'
logger.exception(msg)
pytest.skip(msg)
yield vm, injected_user_cred, data
vm.delete()
def verify_revert_snapshot(full_test_vm, provider, soft_assert, register_event, request,
active_snapshot=False):
SSH_READY_TIMEOUT = 300
if provider.one_of(RHEVMProvider):
# RHV snapshots have only description, no name
snapshot1 = new_snapshot(full_test_vm, has_name=False)
else:
snapshot1 = new_snapshot(full_test_vm)
full_template = getattr(provider.data.templates, 'full_template')
creds = SSHCredential.from_config(full_template.creds)
# We need to wait for ssh to become available on the vm, it can take a while.
# connect_ssh will iterate over "all_ips" on the VM and return a client when it can connect
with closing(connect_ssh(full_test_vm.mgmt, creds, num_sec=SSH_READY_TIMEOUT)) as ssh_client:
ssh_client.run_command('touch snapshot1.txt')
# Create first snapshot
snapshot1.create()
# Assuming creating snapshot shouldn't break the ssh connection...
ssh_client.run_command('touch snapshot2.txt')
# If we are not testing 'revert to active snapshot' situation, we create another snapshot
if not active_snapshot:
if provider.one_of(RHEVMProvider):
snapshot2 = new_snapshot(full_test_vm, has_name=False)
else:
snapshot2 = new_snapshot(full_test_vm)
snapshot2.create()
# VM on RHV provider must be powered off before snapshot revert
if provider.one_of(RHEVMProvider):
full_test_vm.power_control_from_cfme(option=full_test_vm.POWER_OFF, cancel=False)
full_test_vm.wait_for_vm_state_change(
desired_state=full_test_vm.STATE_OFF, timeout=400)
snapshot1.revert_to()
# Wait for the snapshot to become active
logger.info('Waiting for vm %s to become active', snapshot1.name)
wait_for(lambda: snapshot1.active, num_sec=700, delay=30, fail_func=provider.browser.refresh,
message="Waiting for the first snapshot to become active")
# VM state after revert should be OFF
full_test_vm.wait_for_vm_state_change(desired_state=full_test_vm.STATE_OFF, timeout=720)
# Let's power it ON again
full_test_vm.power_control_from_cfme(option=full_test_vm.POWER_ON, cancel=False)
full_test_vm.wait_for_vm_state_change(desired_state=full_test_vm.STATE_ON, timeout=400)
soft_assert(full_test_vm.mgmt.is_running, "vm not running")
# Wait for successful ssh connection
with closing(connect_ssh(full_test_vm.mgmt, creds, num_sec=SSH_READY_TIMEOUT)) as ssh_client:
assert ssh_client.run_command('test -e snapshot1.txt').success
# This checks the exit status is 1 -- file doesn't exist.
assert ssh_client.run_command('test -e snapshot2.txt') == 1