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import copy
import docker
import pytest
from ..helpers import requires_api_version
from .base import BaseAPIIntegrationTest
class SwarmTest(BaseAPIIntegrationTest):
def setUp(self):
super(SwarmTest, self).setUp()
self.client.leave_swarm(force=True)
def tearDown(self):
super(SwarmTest, self).tearDown()
self.client.leave_swarm(force=True)
@requires_api_version('1.24')
def test_init_swarm_simple(self):
assert self.client.init_swarm('eth0')
@requires_api_version('1.24')
def test_init_swarm_force_new_cluster(self):
pytest.skip('Test stalls the engine on 1.12.0')
assert self.client.init_swarm('eth0')
version_1 = self.client.inspect_swarm()['Version']['Index']
assert self.client.init_swarm('eth0', force_new_cluster=True)
version_2 = self.client.inspect_swarm()['Version']['Index']
assert version_2 != version_1
@requires_api_version('1.24')
def test_init_already_in_cluster(self):
assert self.client.init_swarm('eth0')
with pytest.raises(docker.errors.APIError):
self.client.init_swarm('eth0')
@requires_api_version('1.24')
def test_init_swarm_custom_raft_spec(self):
spec = self.client.create_swarm_spec(
snapshot_interval=5000, log_entries_for_slow_followers=1200
)
assert self.client.init_swarm(
advertise_addr='eth0', swarm_spec=spec
)
swarm_info = self.client.inspect_swarm()
assert swarm_info['Spec']['Raft']['SnapshotInterval'] == 5000
assert swarm_info['Spec']['Raft']['LogEntriesForSlowFollowers'] == 1200
@requires_api_version('1.24')
def test_leave_swarm(self):
assert self.client.init_swarm('eth0')
with pytest.raises(docker.errors.APIError) as exc_info:
self.client.leave_swarm()
exc_info.value.response.status_code == 500
assert self.client.leave_swarm(force=True)
with pytest.raises(docker.errors.APIError) as exc_info:
self.client.inspect_swarm()
exc_info.value.response.status_code == 406
assert self.client.leave_swarm(force=True)
@requires_api_version('1.24')
def test_update_swarm(self):
assert self.client.init_swarm('eth0')
swarm_info_1 = self.client.inspect_swarm()
spec = self.client.create_swarm_spec(
snapshot_interval=5000, log_entries_for_slow_followers=1200,
node_cert_expiry=7776000000000000
)
assert self.client.update_swarm(
version=swarm_info_1['Version']['Index'],
swarm_spec=spec, rotate_worker_token=True
)
swarm_info_2 = self.client.inspect_swarm()
assert (
swarm_info_1['Version']['Index'] !=
swarm_info_2['Version']['Index']
)
assert swarm_info_2['Spec']['Raft']['SnapshotInterval'] == 5000
assert (
swarm_info_2['Spec']['Raft']['LogEntriesForSlowFollowers'] == 1200
)
assert (
swarm_info_1['JoinTokens']['Manager'] ==
swarm_info_2['JoinTokens']['Manager']
)
assert (
swarm_info_1['JoinTokens']['Worker'] !=
swarm_info_2['JoinTokens']['Worker']
)
@requires_api_version('1.24')
def test_update_swarm_name(self):
assert self.client.init_swarm('eth0')
swarm_info_1 = self.client.inspect_swarm()
spec = self.client.create_swarm_spec(
node_cert_expiry=7776000000000000, name='reimuhakurei'
)
assert self.client.update_swarm(
version=swarm_info_1['Version']['Index'], swarm_spec=spec
)
swarm_info_2 = self.client.inspect_swarm()
assert (
swarm_info_1['Version']['Index'] !=
swarm_info_2['Version']['Index']
)
assert swarm_info_2['Spec']['Name'] == 'reimuhakurei'
@requires_api_version('1.24')
def test_list_nodes(self):
assert self.client.init_swarm('eth0')
nodes_list = self.client.nodes()
assert len(nodes_list) == 1
node = nodes_list[0]
assert 'ID' in node
assert 'Spec' in node
assert node['Spec']['Role'] == 'manager'
filtered_list = self.client.nodes(filters={
'id': node['ID']
})
assert len(filtered_list) == 1
filtered_list = self.client.nodes(filters={
'role': 'worker'
})
assert len(filtered_list) == 0
@requires_api_version('1.24')
def test_inspect_node(self):
assert self.client.init_swarm('eth0')
nodes_list = self.client.nodes()
assert len(nodes_list) == 1
node = nodes_list[0]
node_data = self.client.inspect_node(node['ID'])
assert node['ID'] == node_data['ID']
assert node['Version'] == node_data['Version']
@requires_api_version('1.24')
def test_update_node(self):
assert self.client.init_swarm('eth0')
nodes_list = self.client.nodes()
node = nodes_list[0]
orig_spec = node['Spec']
# add a new label
new_spec = copy.deepcopy(orig_spec)
new_spec['Labels'] = {'new.label': 'new value'}
self.client.update_node(node_id=node['ID'],
version=node['Version']['Index'],
node_spec=new_spec)
updated_node = self.client.inspect_node(node['ID'])
assert new_spec == updated_node['Spec']
# Revert the changes
self.client.update_node(node_id=node['ID'],
version=updated_node['Version']['Index'],
node_spec=orig_spec)
reverted_node = self.client.inspect_node(node['ID'])
assert orig_spec == reverted_node['Spec']
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