blob: e214d2fc5d6aea193555ebadd7171f7df649f611 [file] [log] [blame]
#!/usr/bin/env python3
"""
usage: onos-gen-config [-h] [-s PARTITION_SIZE] [-n NUM_PARTITIONS]
[filename] [node_ip [node_ip ...]]
Generate the partitions json file given a list of IPs or from the $OCC*
environment variables.
positional arguments:
filename File to write output to. If none is provided, output
is written to stdout.
node_ip IP Address(es) of the node(s) in the cluster. If no
IPs are given, will use the $OC* environment
variables. NOTE: these arguments are only processed
after the filename argument.
optional arguments:
-h, --help show this help message and exit
-s PARTITION_SIZE, --partition-size PARTITION_SIZE
Number of nodes per partition. Note that partition
sizes smaller than 3 are not fault tolerant. Defaults
to 3.
-n NUM_PARTITIONS, --num-partitions NUM_PARTITIONS
Number of partitions. Defaults to the number of nodes
in the cluster.
"""
from os import environ
import argparse
import re
import json
convert = lambda text: int(text) if text.isdigit() else text.lower()
alphanum_key = lambda key: [convert(c) for c in re.split('([0-9]+)', key)]
def get_vars_by_type(type):
vars = []
for var in environ:
if re.match(r"{}[0-9]+".format(type), var):
vars.append(var)
return sorted(vars, key=alphanum_key)
def get_vars():
vars = get_vars_by_type('OCC')
if len(vars) == 0:
vars = get_vars_by_type('OC')
return vars
def get_nodes(ips=None, default_port=5679):
node = lambda id, ip, port: {'id': id, 'ip': ip, 'port': port}
result = []
if not ips:
ips = [environ[v] for v in get_vars()]
i = 1
for ip_string in ips:
address_tuple = ip_string.split(":")
if len(address_tuple) == 3:
id = address_tuple[0]
ip = address_tuple[1]
port = int(address_tuple[2])
else:
id = 'atomix-{}'.format(i)
i += 1
ip = ip_string
port = default_port
result.append(node(id, ip, port))
return result
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description="Generate the partitions json file given a list of IPs or from environment variables.")
parser.add_argument(
'node', metavar='node_ip', type=str, nargs='?',
help='The node for which to generate the configuration')
parser.add_argument(
'filename', metavar='filename', type=str, nargs='?',
help='File to write output to. If none is provided, output is written to stdout.')
parser.add_argument(
'--nodes', '-n', metavar='node_ip', type=str, nargs='+',
help='IP Address(es) of the storage nodes. If no IPs are given, ' +
'will use the $OCC* or $OC* environment variables. NOTE: these arguments' +
' are only processed after the filename argument.')
args = parser.parse_args()
node = args.node
print(node)
filename = args.filename
nodes = get_nodes(args.nodes)
data = {
'name': 'onos',
'node': {
'id': node,
'ip': node,
'port': 9876
},
'storage': nodes
}
output = json.dumps(data, indent=4)
if filename:
with open(filename, 'w') as f:
f.write(output)
else:
print(output)