1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
##############################################################################
# Copyright (c) 2016 Dell Inc, ZTE and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import os
import paramiko
import socket
import time
from os import path
from os.path import expanduser
SCRIPT_DIR = path.join(path.dirname(__file__), path.pardir, 'scripts')
CONFIG_DIR = path.join(path.dirname(__file__), path.pardir, path.pardir,
'config')
PRIVATE_KEY = CONFIG_DIR + '/QtipKey'
PUBLIC_KEY = CONFIG_DIR + '/QtipKey.pub'
IPS_FILE = expanduser('~') + "/qtip/ips.log"
HOST_FILE = CONFIG_DIR + "/host"
def fetch_compute_ips_via_installer():
clean_file(IPS_FILE)
installer_type = str(os.environ['INSTALLER_TYPE'].lower())
installer_ip = str(os.environ['INSTALLER_IP'])
if installer_type not in ["fuel"]:
raise RuntimeError("%s is not supported" % installer_type)
if not installer_ip:
raise RuntimeError("undefine environment variable INSTALLER_IP")
cmd = "bash %s/fetch_compute_ips.sh -i %s -a %s" % \
(SCRIPT_DIR, installer_type, installer_ip)
os.system(cmd)
if path.isfile(IPS_FILE):
return True
else:
return False
def parse_ips():
ip_list = []
with open(IPS_FILE, "r") as outfile:
data = outfile.read()
if data:
ip_list.extend(data.rstrip('\n').split('\n'))
return ip_list
def ssh_test(ip):
os.system('ssh-keyscan %s >> /root/.ssh/known_hosts' % ip)
time.sleep(2)
ssh_cmd = '%s/qtip_creds.sh %s' % (SCRIPT_DIR, ip)
os.system(ssh_cmd)
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(ip, key_filename='{0}/QtipKey'.format(CONFIG_DIR))
for attempts in range(100):
try:
stdin, stdout, stderr = ssh.exec_command('uname')
if not stderr.readlines():
print("{0}: SSH test successful")
return True
except socket.error:
if attempts == 99:
return False
time.sleep(2)
def ping_test(ip, attempts=30):
ping_cmd = 'ping -D -c1 {0}'.format(ip)
for i in range(attempts):
if os.system(ping_cmd):
print('\nWaiting for machine\n')
time.sleep(10)
else:
print('\n\n %s is UP \n\n ' % ip)
return True
if i == 29:
return False
def check_nodes_connectivity():
ip_list = parse_ips()
for ip in ip_list:
if not ping_test(ip):
raise RuntimeError("{0}: Ping test failed".format(ip))
if not ssh_test(ip):
raise RuntimeError("{0}: SSH test failed".format(ip))
def generate_host_file():
ip_list = parse_ips()
with open(HOST_FILE, 'w') as host_file:
for index, item in enumerate(ip_list):
host_file.write("[host_{0}]\n".format(index))
host_file.write(item + '\n')
def generate_keypair():
"""Generating ssh keypair"""
if not clean_keypair():
raise RuntimeError("Cann't remove old keypair")
cmd = "ssh-keygen -t rsa -N "" -f {0} -q".format(PRIVATE_KEY)
os.system(cmd)
if path.isfile(PRIVATE_KEY) and path.isfile(PUBLIC_KEY):
return True
else:
return False
def clean_file(file_path):
try:
if path.isfile(file_path):
os.remove(file_path)
print("Removed: " + file_path)
else:
print("Not exists: " + file_path)
except OSError, error:
print("Not able to Remove: " + file_path, error)
return False
return True
def clean_keypair():
flag = True
flag &= clean_file(PRIVATE_KEY)
flag &= clean_file(PUBLIC_KEY)
return flag
|
