diff options
Diffstat (limited to 'qtip/util/env.py')
| -rw-r--r-- | qtip/util/env.py | 153 |
1 files changed, 58 insertions, 95 deletions
diff --git a/qtip/util/env.py b/qtip/util/env.py index 4e7a31c7..0585a4c1 100644 --- a/qtip/util/env.py +++ b/qtip/util/env.py @@ -7,131 +7,94 @@ # 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 + +import paramiko 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" +KEYNAME = 'QtipKey' +PRIVATE_KEY = '{0}/qtip/{1}'.format(os.environ['HOME'], KEYNAME) +PUBLIC_KEY = PRIVATE_KEY + '.pub' +HOST_FILE = '{0}/qtip/hosts'.format(os.environ['HOME']) -def fetch_compute_ips_via_installer(): - clean_file(IPS_FILE) +def all_files_exist(*files): + if len(files) == 0: + return False + flag = True + for f_item in files: + flag &= path.isfile(f_item) + print("Is {0} existed: {1}".format(f_item, flag)) + return flag + +def clean_file(*files): + if len(files) == 0: + print('Nothing to clean') + return False + + def clean(f): + try: + if all_files_exist(f): + os.remove(f) + print("Removed: {0}".format(f)) + else: + print("Not exists: {0}".format(f)) + return True + except OSError as error: + print("Not able to Remove: {0}".format(f), error) + return False + + results = map(clean, files) + return len(results) == len(files) and False not in results + + +def generate_host_file(hostfile=HOST_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) + raise ValueError("%s is not supported" % installer_type) if not installer_ip: - raise RuntimeError("undefine environment variable INSTALLER_IP") + raise ValueError("The value of environment variable INSTALLER_IP is empty") - cmd = "bash %s/fetch_compute_ips.sh -i %s -a %s" % \ - (SCRIPT_DIR, installer_type, installer_ip) + cmd = "bash %s/generate_host_file.sh -i %s -a %s -d %s" % \ + (SCRIPT_DIR, installer_type, installer_ip, hostfile) os.system(cmd) - if path.isfile(IPS_FILE): - return True - else: - return False + return all_files_exist(hostfile) -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 generate_keypair(keyname='QtipKey'): + """Generating ssh keypair""" + cmd = "ssh-keygen -t rsa -N "" -f {0} -q -b 2048".format(keyname) + os.system(cmd) + return all_files_exist(PRIVATE_KEY, PUBLIC_KEY) -def ssh_test(ip): +def pass_keypair(ip, private_key=PRIVATE_KEY): os.system('ssh-keyscan %s >> /root/.ssh/known_hosts' % ip) time.sleep(2) - ssh_cmd = '%s/qtip_creds.sh %s' % (SCRIPT_DIR, ip) + ssh_cmd = '%s/qtip_creds.sh %s %s' % (SCRIPT_DIR, ip, private_key) os.system(ssh_cmd) + +def ssh_is_ok(ip, private_key=PRIVATE_KEY, attempts=100): ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) - ssh.connect(ip, key_filename='{0}/QtipKey'.format(CONFIG_DIR)) + ssh.connect(ip, key_filename=private_key) - for attempts in range(100): + for attempt in range(attempts): try: stdin, stdout, stderr = ssh.exec_command('uname') if not stderr.readlines(): - print("{0}: SSH test successful") + print("{0}: SSH test successful".format(ip)) return True except socket.error: - if attempts == 99: + if attempt == (attempts - 1): return False + print("%s times ssh test......failed" % attempt) 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 + return False |