An SSH automation tool based on Exscript
Project description
Introduction
cannon is a wrapper around exscript to connect with remote server or network devices with ssh.
Example Usage - Cisco IOS
This script will login, run a few show commands
from cannon import Shell, Account
sess = Shell(
host='route-views.routeviews.org',
# route-views doesn't need password
account= Account(name='rviews', password=''),
debug=0,
)
sess.execute('term len 0')
# relax_prompt reduces prompt matching to a minimum... relax_prompt is
# useful if the prompt may change while running a series of commands.
sess.execute('show clock')
sess.execute('show version')
version_text = sess.response
# template is a TextFSM template
values = sess.execute('show ip int brief',
template="""Value INTF (\S+)\nValue IPADDR (\S+)\nValue STATUS (up|down|administratively down)\nValue PROTO (up|down)\n\nStart\n ^${INTF}\s+${IPADDR}\s+\w+\s+\w+\s+${STATUS}\s+${PROTO} -> Record""")
print("VALUES "+str(values))
sess.close()
Example Usage - Linux
from getpass import getpass
from cannon.main import Shell, Account
account = Account("mpenning", getpass("Login password: "))
conn = Shell(host="127.0.0.1", port=22, account=account, driver="generic", debug=0)
assert conn is not None
example_tfsm_template = """Value UNAME_LINE (.+)
Start
^${UNAME_LINE}
"""
print(conn.execute("sudo uname -a", debug=0, template=example_tfsm_template, timeout=2))
print(conn.execute("whoami", debug=0, template=None, timeout=2))
#print("FOO2", conn.response)
conn.close(force=True)
Example test suite setup
git clone git@github.com:knipknap/Exscript
cd
intoExscript/tests/Exscript/protocols
andchmod 600 id_rsa
- exscript spawns a local tests ssh daemon,
pytest Exscript/tests/Exscript/protocols/SSH2Test.py
- Connect with
ssh -i id_rsa -p 1236 user@localhost
- one command is supported:
ls
.. _exscript: https://pypi.python.org/pypi/exscript
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