def ask_cron_email(self):
"""ask_cron_email."""
try:
crontanContent = subprocess.check_output("crontab -l", shell=True)
crontanContent = crontanContent.decode("utf-8").splitlines(True)
except:
# probably no crontab was setup yet
crontanContent = []
for l in crontanContent:
if len(l.strip()) > 1 and l.strip()[0] != "#":
m = re.match(r'^MAILTO\s*=\s*(.*)', l.strip())
if m:
self.cron_email = m.group(1)
self.cron_email = self.cron_email.replace('"', '')
if self.cron_email == None:
log.log_input(
"Please enter the e-mail where cron will send messages (leave empty to opt out):"
)
self.cron_email = input()
else:
log.log_input(
"Please enter the e-mail where cron will send messages:")
cron_email = input('[{0}] '.format(self.cron_email))
if cron_email != "": self.cron_email = cron_email
if self.cron_email == "": self.cron_email = None
def get_system_characteristics():
"""detect system characteristics or ask user about them"""
global ppn
while True:
try:
log.log_input("Enter processors (cores) per node count:")
ppn = int(input(""))
break
except (ValueError, TypeError):
log.error("Incorrect entry, try again.")
def _read_sql_su_credentials(host, port):
while True:
log.log_input(
"Please provide an administrative database user (for {}:{}) "
"under which the installation sql script should "
"run (This user must have privileges to create "
"users and databases).".format(host, port))
su_username = input("Username: "******"Please provide the password for the the user which you previously entered:"
)
su_password = getpass.getpass()
try:
get_con_to_db(su_username, su_password, host, port)
return su_username, su_password
except Exception as e:
log.error("MySQL error: " + str(e))
log.error("Entered credential is not valid. Please try again.")
def _read_username_password(prompt="Enter username:"******"user",
password_on_default_user=None):
log.log_input(prompt)
if username is None:
username = input('[{0}] '.format(default_username))
if username == '':
username = default_username
else:
log.info("User, " + username + ", already entered.")
if username == default_username and password is None and password_on_default_user is not None:
password = password_on_default_user
if password is None:
while True:
log.log_input("Please specify a password:"******"Please reenter the password:"******"Entered passwords do not match. Please try again.")
else:
log.info("Password already entered.")
return username, password
def resource_add(config):
"""add resource, config should have following members
dry_run - Dry Run No files will actually be created
minimalistic - Minimize questions number, configuration files will be edited manually
no-ping - do not run ping to test headnode name
verbose
"""
global verbose
global dry_run
global no_ping
global minimalistic
global resource_name
global remoteAccessNode
global remoteAccessMethod
global remoteCopyMethod
global sshUserName
global sshPassword
global sshPrivateKeyFile
global sshPrivateKeyPassword
global networkScratch
global localScratch
global akrrData
global appKerDir
global batchScheduler
global batchJobHeaderTemplate
if config.verbose:
verbose = True
log.info("Beginning Initiation of New Resource...")
verbose = config.verbose
dry_run = config.dry_run
resource_deploy.dry_run = config.dry_run
no_ping = config.no_ping
minimalistic = config.minimalistic
log.info("Retrieving Resources from XDMoD Database...")
# RETRIEVE: the resources from XDMoD
resources = retrieve_resources()
log.info("Found following resources from XDMoD Database:\n" +
" resource_id name\n" + "\n".join([
" %11d %-40s" % (resource_id, resource_name)
for resource_name, resource_id in resources
]) + "\n")
if len(resources) > 0:
while True:
log.log_input(
'Enter resource_id for import (enter 0 for no match):')
resource_id = input()
if validate_resource_id(resource_id, resources):
break
log.warning("Incorrect resource_id try again")
log.empty_line()
resource_id = int(resource_id)
else:
resource_id = 0
if resource_id <= 0: # i.e. no match from XDMoD DB
resource_id = None
resource_name = ""
while True:
if resource_id is None:
log.log_input('Enter AKRR resource name:')
resource_name = input()
else:
resource_name2 = get_resource_name_by_id(resource_id, resources)
log.log_input(
'Enter AKRR resource name, hit enter to use same name as in XDMoD Database [%s]:'
% (resource_name2, ))
resource_name = input()
if resource_name.strip() == "":
resource_name = resource_name2
if validate_resource_name(resource_name):
break
log.empty_line()
while True:
log.log_input('Enter queuing system on resource (slurm or pbs): ')
queuing_system = input()
if validate_queuing_system(queuing_system):
break
else:
log.error("Incorrect queuing_system try again")
batchScheduler = queuing_system
log.empty_line()
if minimalistic is False:
get_remote_access_method()
get_system_characteristics()
get_file_system_access_points()
log.debug("Summary of parameters" +
"resource_name: {}".format(resource_name) +
"remoteAccessNode: {}".format(remoteAccessNode) +
"remoteAccessMethod: {}".format(remoteAccessMethod) +
"remoteCopyMethod: {}".format(remoteCopyMethod) +
"sshUserName: {}".format(sshUserName) +
"sshPassword: {}".format(sshPassword) +
"sshPrivateKeyFile: {}".format(sshPrivateKeyFile) +
"sshPrivateKeyPassword: {}".format(sshPrivateKeyPassword) +
"networkScratch: {}".format(networkScratch) +
"localScratch: {}".format(localScratch) +
"akrrData: {}".format(akrrData) +
"appKerDir: {}".format(appKerDir) +
"batchScheduler: {}".format(batchScheduler) +
"batchJobHeaderTemplate: {}".format(batchJobHeaderTemplate) +
"\n")
generate_resource_config(resource_id, resource_name, queuing_system)
log.info("Initiation of new resource is completed.\n"
" Edit batchJobHeaderTemplate variable in {}\n"
" and move to resource validation and deployment step.\n"
" i.e. execute:\n"
" akrr resource deploy -r {}".format(
resource_cfg_filename, resource_name))
def get_file_system_access_points():
global resource_name
global networkScratch
global localScratch
global akrrData
global appKerDir
home_dir = cfg.sshCommand(rsh, "echo $HOME").strip()
scratch_network_dir = cfg.sshCommand(rsh, "echo $SCRATCH").strip()
# localScratch
local_scratch_default = "/tmp"
while True:
log.log_input(
"Enter location of local scratch (visible only to single node):")
localScratch = input("[%s]" % local_scratch_default)
if localScratch.strip() == "":
localScratch = local_scratch_default
status, msg = resource_deploy.check_dir_simple(rsh, localScratch)
if status:
log.info(msg)
log.empty_line()
break
else:
log.warning(msg)
log.warning(
'local scratch might be have a different location on head node, so if it is by design it is ok'
)
log.empty_line()
break
localScratch = cfg.sshCommand(rsh, "echo %s" % (localScratch, )).strip()
# networkScratch
network_scratch_default = ""
if scratch_network_dir != "":
network_scratch_default = scratch_network_dir
network_scratch_visible = False
while True:
log.log_input(
"Enter location of network scratch (visible only to all nodes),"
"used for temporary storage of app kernel input/output:")
if network_scratch_default != "":
networkScratch = input("[%s]" % network_scratch_default)
if networkScratch.strip() == "":
networkScratch = network_scratch_default
else:
networkScratch = input("")
if networkScratch == "":
log.error("Incorrect value for networkScratch, try again")
continue
status, msg = resource_deploy.check_dir(rsh,
networkScratch,
exit_on_fail=False,
try_to_create=True)
if status:
log.info(msg)
network_scratch_visible = True
log.empty_line()
break
else:
log.warning(msg)
break
networkScratch = cfg.sshCommand(rsh,
"echo %s" % (networkScratch, )).strip()
# appKerDir
appker_dir_default = os.path.join(home_dir, "appker", resource_name)
while True:
log.log_input(
"Enter future location of app kernels input and executable files:")
appKerDir = input("[%s]" % appker_dir_default)
if appKerDir.strip() == "":
appKerDir = appker_dir_default
status, msg = resource_deploy.check_dir(rsh,
appKerDir,
exit_on_fail=False,
try_to_create=True)
if status:
log.info(msg)
log.empty_line()
break
else:
log.error(msg)
appKerDir = cfg.sshCommand(rsh, "echo %s" % (appKerDir, )).strip()
# akrrData
akrr_data_default = os.path.join(home_dir, "akrr_data", resource_name)
if network_scratch_visible:
akrr_data_default = os.path.join(networkScratch, "akrr_data",
resource_name)
while True:
log.log_input(
"Enter future locations for app kernels working directories (can or even should be on scratch space):"
)
akrrData = input("[%s]" % akrr_data_default)
if akrrData.strip() == "":
akrrData = akrr_data_default
status, msg = resource_deploy.check_dir(rsh,
akrrData,
exit_on_fail=False,
try_to_create=True)
if status:
log.info(msg)
log.empty_line()
break
else:
log.error(msg)
akrrData = cfg.sshCommand(rsh, "echo %s" % (akrrData, )).strip()
def get_remote_access_method():
global resource_name
global remoteAccessNode
global remoteAccessMethod
global remoteCopyMethod
global sshUserName
global sshPassword
global sshPassword4thisSession
global sshPrivateKeyFile
global sshPrivateKeyPassword
global rsh
global no_ping
# set remoteAccessNode
while True:
log.log_input(
"Enter Resource head node (access node) full name (e.g. headnode.somewhere.org):"
)
remoteAccessNode = input("[%s] " % resource_name)
if remoteAccessNode.strip() == "":
remoteAccessNode = resource_name
response = os.system("ping -c 1 -w2 " + remoteAccessNode +
" > /dev/null 2>&1")
if response == 0:
break
else:
if no_ping:
log.warning("Can not ping %s, but asked to ignore it.",
remoteAccessNode)
break
log.error("Incorrect head node name (can not ping %s), try again",
remoteAccessNode)
# set sshUserName
current_user = getpass.getuser()
ask_for_user_name = True
while True:
if ask_for_user_name:
log.log_input("Enter username for resource access:")
sshUserName = input("[%s] " % current_user)
if sshUserName.strip() == "":
sshUserName = current_user
current_user = sshUserName
# check password-less access
if sshPassword is None:
log.info("Checking for password-less access")
else:
log.info("Checking for resource access")
successfully_connected = check_connection_to_resource()
if successfully_connected:
if sshPassword is None:
log.info("Can access resource without password")
else:
log.info("Can access resource")
if successfully_connected is False:
log.info("Can not access resource without password")
action_list = [(
"TryAgain",
"The private and public keys was generated manually, right now. Try again."
)]
# check private keys
user_home_dir = os.path.expanduser("~")
private_keys = [
os.path.join(user_home_dir, '.ssh', f[:-4])
for f in os.listdir(os.path.join(user_home_dir, '.ssh'))
if os.path.isfile(os.path.join(user_home_dir, '.ssh', f))
and f[-4:] == '.pub'
and os.path.isfile(os.path.join(user_home_dir, '.ssh', f[:-4]))
]
if len(private_keys) > 0:
action_list.append(("UseExistingPrivateKey",
"Use existing private and public key."))
action_list.append(
("GenNewKey", "Generate new private and public key."))
action_list.append(("UsePassword", "Use password directly."))
log.empty_line()
log.info("Select authentication method:" + "\n".join([
"%3d %s" % (i, desc)
for i, (_, desc) in enumerate(action_list)
]))
while True:
log.log_input("Select option from list above:")
try:
action = input("[2] ")
if action.strip() == "":
action = 2
else:
action = int(action)
if action < 0 or action >= len(action_list):
raise ValueError()
break
except (ValueError, TypeError):
log.error("Incorrect entry, try again.")
# do the action
log.empty_line()
if action_list[action][0] == "TryAgain":
continue
if action_list[action][0] == "UsePassword":
log.log_input("Enter password for %s@%s:" %
(sshUserName, remoteAccessNode))
sshPassword = getpass.getpass("")
ask_for_user_name = not ask_for_user_name
continue
if action_list[action][0] == "UseExistingPrivateKey":
log.info("Available private keys:" + "\n".join(
["%3d %s" % (i, p) for i, p in enumerate(private_keys)]))
while True:
log.log_input("Select key number from list above:")
try:
i_key = input("")
i_key = int(i_key)
if i_key < 0 or i_key >= len(private_keys):
raise ValueError()
break
except (ValueError, TypeError):
log.error("Incorrect entry, try again.")
sshPrivateKeyFile = private_keys[i_key]
ask_for_user_name = not ask_for_user_name
continue
if action_list[action][0] == "GenNewKey":
count = 0
while True:
log.log_input(
"Enter password for %s@%s (will be used only during this session):"
% (sshUserName, remoteAccessNode))
sshPassword4thisSession = getpass.getpass("")
sshPassword = sshPassword4thisSession
if check_connection_to_resource():
break
count += 1
if count >= 3:
break
sshPassword = None
# generate keys
log.log_input("Enter private key name:")
sshPrivateKeyFile = input("[id_rsa_%s]" % resource_name)
if sshPrivateKeyFile.strip() == "":
sshPrivateKeyFile = "id_rsa_%s" % resource_name
sshPrivateKeyFile = os.path.join(user_home_dir, '.ssh',
sshPrivateKeyFile)
log.log_input(
"Enter passphrase for new key (leave empty for passwordless access):"
)
sshPrivateKeyPassword = getpass.getpass("")
os.system("ssh-keygen -t rsa -N \"%s\" -f %s" %
(sshPrivateKeyPassword, sshPrivateKeyFile))
if sshPrivateKeyPassword.strip() == "":
sshPrivateKeyPassword = None
# copy keys
cfg.sshAccess(remoteAccessNode,
ssh='ssh-copy-id',
username=sshUserName,
password=sshPassword4thisSession,
PrivateKeyFile=sshPrivateKeyFile,
PrivateKeyPassword=None,
logfile=sys.stdout,
command='')
ask_for_user_name = not ask_for_user_name
continue
if successfully_connected:
break
else:
log.error("Incorrect resource access credential")
if successfully_connected:
log.empty_line()
log.info("Connecting to " + resource_name)
str_io = io.StringIO()
try:
sys.stdout = sys.stderr = str_io
rsh = cfg.sshAccess(remoteAccessNode,
ssh=remoteAccessMethod,
username=sshUserName,
password=sshPassword,
PrivateKeyFile=sshPrivateKeyFile,
PrivateKeyPassword=sshPrivateKeyPassword,
logfile=sys.stdout,
command=None)
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
except Exception as e:
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
log.debug(str_io.getvalue())
raise e
log.info(" Done")
log.empty_line()
return successfully_connected
def check_connection_to_resource():
"""check the connection to remote resource."""
global remoteAccessNode
global remoteAccessMethod
global remoteCopyMethod
global sshUserName
global sshPassword
global sshPassword4thisSession
global sshPrivateKeyFile
global sshPrivateKeyPassword
successfully_connected = False
passphrase_entrance_count = 0
authorize_key_count = 0
while True:
# Try to connect
str_io = io.StringIO()
try:
sys.stdout = sys.stderr = str_io
cfg.sshAccess(remoteAccessNode,
ssh=remoteAccessMethod,
username=sshUserName,
password=sshPassword,
PrivateKeyFile=sshPrivateKeyFile,
PrivateKeyPassword=sshPrivateKeyPassword,
logfile=str_io,
command='ls')
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
successfully_connected = True
break
except Exception:
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
response = str_io.getvalue()
log.debug(
"Had attempted to access resource without password and failed, below is resource response"
+ "=" * 80 + str_io.getvalue() + "=" * 80)
# check if it asking for passphrase
m = re.search(r"Enter passphrase for key '(.*)':", response)
if m:
if passphrase_entrance_count >= 3:
sshPrivateKeyPassword = None
sshPrivateKeyFile = None
break
if passphrase_entrance_count > 0:
log.error("Incorrect passphrase try again")
sshPrivateKeyFile = m.group(1)
log.log_input("Enter passphrase for key '%s':" %
sshPrivateKeyFile)
sshPrivateKeyPassword = getpass.getpass("")
passphrase_entrance_count += 1
continue
m2 = re.search(r"[pP]assword:", response)
if m is None and sshPrivateKeyFile is not None and m2:
log.warning(
"Can not login to head node. "
"Probably the public key of private key was not authorized on head node"
)
log.info(
"Will try to add public key to list of authorized keys on head node"
)
while True:
try:
authorize_key_count += 1
log.log_input(
"Enter password for %s@%s (will be used only during this session):"
% (sshUserName, remoteAccessNode))
sshPassword4thisSession = getpass.getpass("")
log.empty_line()
str_io = io.StringIO()
sys.stdout = sys.stderr = str_io
cfg.sshAccess(remoteAccessNode,
ssh='ssh-copy-id',
username=sshUserName,
password=sshPassword4thisSession,
PrivateKeyFile=sshPrivateKeyFile,
PrivateKeyPassword=None,
logfile=str_io,
command='')
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
log.info(response)
log.info(
"Have added public key to list of authorized keys on head node, "
"will attempt to connect again.")
log.empty_line()
break
except Exception:
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
if verbose:
log.debug(
"Had attempted to add public key to list of authorized keys on head node and failed, "
+ "below is resource response" + "=" * 80 +
str_io.getvalue() + "=" * 80)
log.error("Incorrect password try again.")
if authorize_key_count >= 3:
break
if authorize_key_count < 3:
continue
break
return successfully_connected