def stop_control_plane_services():
"""
Stop the control plane services
"""
for service in services:
if is_service_expected_to_start(service):
systemd_service_name = "microk8s.daemon-{}".format(service)
print("Stopping {}".format(systemd_service_name), flush=True)
cmd = "snapctl stop {}".format(systemd_service_name)
subprocess.check_output(cmd.split())
set_service_expected_to_start(service, False)
def start_control_plane_services():
"""
Start the control plane services
"""
for service in services:
if not is_service_expected_to_start(service):
systemd_service_name = "eks.daemon-{}".format(service)
print("Starting {}".format(systemd_service_name), flush=True)
cmd = "snapctl start {}".format(systemd_service_name)
subprocess.check_output((cmd.split()))
set_service_expected_to_start(service, True)
# Check for changes every 10 seconds
sleep(10)
try:
if microk8s_group_exists():
set_dqlite_file_permissions()
# We will not attempt to stop services if:
# 1. The cluster is not ready
# 2. We are not on an HA cluster
# 3. The control plane kicker is disabled
# 4. dqlite has less than 4 nodes
if (
not is_cluster_ready()
or not is_ha_enabled()
or not is_service_expected_to_start('control-plane-kicker')
):
start_control_plane_services()
continue
info = get_dqlite_info()
if len(info) <= 3:
start_control_plane_services()
continue
local_ips = []
for interface in netifaces.interfaces():
if netifaces.AF_INET not in netifaces.ifaddresses(interface):
continue
for link in netifaces.ifaddresses(interface)[netifaces.AF_INET]:
local_ips.append(link['addr'])
