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Clarify exception handling in net modules (#15507)

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* Clarify exception handling in EOS

Also modify to EOS to standardize modules. It makes vimdiff a lot less angry

* Move IOS exception handling into Cli

* Move IOS-XR exception handling into Cli

* Move JUNOS exception handling into Cli

* Move NXOS exception handling into Cli

And reorganize to make it match the other modules

* Move OpenSwitch exception handling into Cli

More speculative restructuring here
This commit is contained in:
Nathaniel Case 2016-04-25 16:04:19 -04:00
commit 250b975704
6 changed files with 150 additions and 129 deletions
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42
lib/ansible/module_utils/iosxr.py
View file

@ -19,8 +19,8 @@
import re
from ansible.module_utils.basic import AnsibleModule, env_fallback
from ansible.module_utils.shell import Shell, HAS_PARAMIKO
from ansible.module_utils.basic import AnsibleModule, env_fallback, get_exception
from ansible.module_utils.shell import Shell, ShellError, HAS_PARAMIKO
from ansible.module_utils.netcfg import parse
NET_PASSWD_RE = re.compile(r"[\r\n]?password: $", re.I)
@ -49,6 +49,7 @@ CLI_ERRORS_RE = [
re.compile(r"'[^']' +returned error code: ?\d+"),
]
def to_list(val):
if isinstance(val, (list, tuple)):
return list(val)
@ -57,6 +58,7 @@ def to_list(val):
else:
return list()
class Cli(object):
def __init__(self, module):
@ -74,12 +76,18 @@ class Cli(object):
try:
self.shell = Shell(kickstart=False, prompts_re=CLI_PROMPTS_RE, errors_re=CLI_ERRORS_RE)
self.shell.open(host, port=port, username=username, password=password, key_filename=key_filename)
except Exception, exc:
msg = 'failed to connecto to %s:%s - %s' % (host, port, str(exc))
except ShellError:
e = get_exception()
msg = 'failed to connect to %s:%s - %s' % (host, port, str(e))
self.module.fail_json(msg=msg)
def send(self, commands):
return self.shell.send(commands)
try:
return self.shell.send(commands)
except ShellError:
e = get_exception()
self.module.fail_json(msg=e.message, commands=commands)
class NetworkModule(AnsibleModule):
@ -103,18 +111,16 @@ class NetworkModule(AnsibleModule):
super(NetworkModule, self)._load_params()
provider = self.params.get('provider') or dict()
for key, value in provider.items():
if key in NET_COMMON_ARGS.keys():
if key in NET_COMMON_ARGS:
if self.params.get(key) is None and value is not None:
self.params[key] = value
def connect(self):
try:
self.connection = Cli(self)
self.connection.connect()
self.connection.send('terminal length 0')
self._connected = True
except Exception, exc:
self.fail_json(msg=exc.message)
self.connection = Cli(self)
self.connection.connect()
self.connection.send('terminal length 0')
self._connected = True
def configure(self, commands):
commands = to_list(commands)
@ -126,12 +132,9 @@ class NetworkModule(AnsibleModule):
return responses
def execute(self, commands, **kwargs):
try:
if not self.connected:
self.connect()
return self.connection.send(commands)
except ShellError, exc:
self.fail_json(msg=exc.message, command=exc.command)
if not self.connected:
self.connect()
return self.connection.send(commands, **kwargs)
def disconnect(self):
self.connection.close()
@ -157,4 +160,3 @@ def get_module(**kwargs):
module.fail_json(msg='paramiko is required but does not appear to be installed')
return module