#!/usr/bin/env python
#
# Copyright (c) 2014, 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.
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# 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
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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#pylint: disable=W0703
BOOT_CONFIG = '/mnt/flash/boot-config'
[docs]def main(attributes):
'''Installs software image on the switch.
If the current software image is the same as the 'version'
attribute value, then this action is a no-op. Otherwise, the
action will replace the existing software image.
For dual supervisor systems, the image on the active supervisor is
used as reference.
This action is dual-supervisor compatible.
Args:
attributes: list of attributes; use attributes.get(<ATTRIBUTE_NAME>)
to read attribute values
Special attributes:
node: attributes.get('NODE')
API: see documentation
'''
node = attributes.get('NODE')
url = attributes.get('url')
if not url:
return 'Missing attribute(\'url\')'
version = attributes.get('version')
if not version:
return 'Missing attribute(\'version\')'
current_version = node.api_enable_cmds(['show version'])[0]['version']
if current_version == version:
return
image = 'EOS-%s.swi' % version
try:
node.retrieve_url(url, '%s/%s' % (node.flash(), image))
except Exception as exc:
return 'Unable to retrieve image file from URL (%s)' % exc
node.api_enable_cmds(['install source flash:%s' % image])