def print_yaml(isReady, enabled_addons, disabled_addons):
print("microk8s:")
print("{:>2}{} {}".format("", "running:", isReady))
print("{:>2}".format("high-availability:"))
ha_enabled = is_ha_enabled()
print("{:>2}{} {}".format("", "enabled:", ha_enabled))
if ha_enabled:
info = get_dqlite_info()
print("{:>2}{}".format("", "nodes:"))
for node in info:
print("{:>6}address: {:<1}".format("- ", node[0]))
print("{:>6}role: {:<1}".format("", node[1]))
if isReady:
print("{:>2}".format("addons:"))
for enabled in enabled_addons:
print("{:>4}name: {:<1}".format("- ", enabled["name"]))
print("{:>4}description: {:<1}".format("", enabled["description"]))
print("{:>4}version: {:<1}".format("", enabled["version"]))
print("{:>4}status: enabled".format(""))
for disabled in disabled_addons:
print("{:>4}name: {:<1}".format("- ", disabled["name"]))
print("{:>4}description: {:<1}".format("", disabled["description"]))
print("{:>4}version: {:<1}".format("", disabled["version"]))
print("{:>4}status: disabled".format(""))
else:
print(
"{:>2} {} {}".format(
"",
"message:",
"microk8s is not running. Use microk8s inspect for a deeper inspection.",
)
)
def print_pretty(isReady, enabled_addons, disabled_addons):
console_formatter = "{:>3} {:<20} # ({}) {}"
if isReady:
print("microk8s is running")
if not is_ha_enabled():
print("high-availability: no")
else:
info = get_dqlite_info()
if ha_cluster_formed(info):
print("high-availability: yes")
else:
print("high-availability: no")
masters = "none"
standby = "none"
for node in info:
if node[1] == "voter":
if masters == "none":
masters = "{}".format(node[0])
else:
masters = "{} {}".format(masters, node[0])
if node[1] == "standby":
if standby == "none":
standby = "{}".format(node[0])
else:
standby = "{} {}".format(standby, node[0])
print("{:>2}{} {}".format("", "datastore master nodes:", masters))
print("{:>2}{} {}".format("", "datastore standby nodes:", standby))
print("addons:")
if enabled_addons and len(enabled_addons) > 0:
print("{:>2}{}".format("", "enabled:"))
for enabled in enabled_addons:
print(
console_formatter.format(
"", enabled["name"], enabled["repository"], enabled["description"]
)
)
if disabled_addons and len(disabled_addons) > 0:
print("{:>2}{}".format("", "disabled:"))
for disabled in disabled_addons:
print(
console_formatter.format(
"", disabled["name"], disabled["repository"], disabled["description"]
)
)
else:
print("microk8s is not running. Use microk8s inspect for a deeper inspection.")
while 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]:
restore_cmd = "{} {}".format(restore_cmd, "--debug")
try:
rc = run_command(restore_cmd)
if rc > 0:
print("Restore process failed. {}".format(rc))
exit(3)
except subprocess.CalledProcessError as e:
print("Restore process failed. {}".format(e))
exit(4)
if __name__ == '__main__':
exit_if_no_permission()
is_cluster_locked()
if not kine_exists() or not is_ha_enabled():
print(
"Please ensure the kubernetes apiserver is running and HA is enabled."
)
exit(10)
# initiate the parser with a description
parser = argparse.ArgumentParser(
description="backup and restore the Kubernetes datastore.",
prog='microk8s dbctl')
parser.add_argument('--debug',
action='store_true',
help='print debug output')
commands = parser.add_subparsers(title='commands',
help='backup and restore operations')
restore_parser = commands.add_parser("restore")
cmd = "chmod -R ug+rwX {}".format(dqlite_path)
subprocess.check_call(cmd.split())
cmd = "chgrp microk8s -R {}".format(dqlite_path)
subprocess.check_call(cmd.split())
except Exception as e:
print("Failed to set the file permissions in dqlite.")
print(e)
if __name__ == '__main__':
while True:
# Check for changes every 10 seconds
sleep(10)
try:
if microk8s_group_exists() and is_ha_enabled():
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()
