#!/usr/bin/env python
#
# Copyright (c) 2015, Arista Networks, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# - Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# - Neither the name of Arista Networks nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ARISTA NETWORKS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#pylint: disable=W0703,E1103
import os
TEMP_FILE = '/tmp/tmp-run-script'
[docs]def main(attributes):
''' Runs a script in EOS from bash.
This action is dual-supervisor compatible.
Attributes:
url: path to source script/template
variables (optional):
list of value substitutions (for a script template)
Special_attributes:
NODE: API object - see documentation for details
Example:
::
-
action: run_bash_script
attributes:
url: files/scripts/install_script
variables:
version: 1.2.3
name: 'install temp package'
'''
node = attributes.get('NODE')
url = attributes.get('url')
if not url:
raise Exception('Missing attribute(\'url\')')
try:
node.retrieve_url(url, TEMP_FILE)
except Exception as exc:
raise Exception('Unable to retrieve config from URL (%s)' %
exc)
exec_file = open(TEMP_FILE, 'r')
contents = exec_file.read()
exec_file.close()
variables = attributes.get('variables')
if not variables:
variables = {}
if not isinstance(variables, dict):
node.log_msg('Variables: %s' % variables)
raise Exception('Unable to perform variable substitution - '
'invalid variables')
contents = node.substitute(contents, variables)
exec_file = open(TEMP_FILE, 'w')
exec_file.write(contents)
exec_file.close()
os.chmod(TEMP_FILE, 0777)
(cmd, code, out, err) = node.bash_cmds([TEMP_FILE])
if code or err:
raise Exception('Running %s in bash failed '
'return_code=%s, stdout=%s, stderr=%s)' %
(cmd, code, out, err))
# Only remove this in case everything else succeeded
# for debugging purposes
os.remove(TEMP_FILE)