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Fabric command not working with specific ssh key

I'm working with fabric3 (https://pypi.python.org/pypi/Fabric3) , a python 3 port of fabric.
I have the following function wchich I'm running locally in win7 using git-bash:
#roles('production')
def dir():
env.key_filename = '~/.ssh/deploy'
local("git push mysite master")
run('pwd')
run('ls')
code_dir = '/home/deploy/mysite'
with cd(code_dir):
run('pwd')
run('git reset --hard master')
run('ls -la')
output:
$ fab dir
[deploy#198.x.x.x] Executing task 'dir'
[localhost] local: git push mysite master
deploy#198.x.x.x's password:
When I run the function, I get asked for the password. It seems to be ignoring the key. How can I get the function to use the prescribed key?

I added git as a user to my .ssh/config file and it now appears to work.
Host deploy
HostName 198.x.x.x
User deploy
PreferredAuthentications publickey
IdentityFile ~/.ssh/deploy
IdentitiesOnly yes
Host 198.x.x.x
HostName 198.x.x.x
User git
IdentityFile ~/.ssh/deploy

Tryton 3.0: Always "wrong server password"

After installing Tryton 3.0 from the ppa:rayanayar/tryton-3.0, as in the gist script on https://gist.github.com/sharoonthomas/5857450, I always get "wrong server password" when trying to create a new database via the Tryton Client.
Why is that? I've entered the global database admin password in /etc/trytond.conf as prescribed:
# Configure the Tryton server password
admin_passwd = my_admin_password
I've checked that
the tryton user exists in postgreSQL and as Linux user and has his name and password in trytond.conf
the PostgreSQL server ist restartet
root#Tryton:~# service postgresql restart
* Restarting PostgreSQL 9.1 database server [ OK ]
the Tryton server is restarted and running
root#Tryton:~# sudo /etc/init.d/tryton-server restart
* Restarting Tryton Application Platform trytond
start-stop-daemon: warning: failed to kill 50063: No such process
[ OK ]
root#Tryton:~# ps aux | grep trytond
tryton 37312 0.2 1.0 292796 17368 ? Sl Mar01 7:45 /usr/bin/python
/usr/bin/trytond --config=/etc/trytond.conf --logfile=/var/log/tryton/trytond.log
root 40178 0.0 2.0 576524 34776 pts/4 Sl+ Mar01 0:03 gedit /etc/trytond.conf
root 50332 0.0 0.0 8112 896 pts/6 S+ 10:45 0:00 grep --color=auto
trytond
python is listening on port localhost:8000
root#Tryton:~# netstat -tupan | grep python
tcp 0 0 127.0.0.1:8000 0.0.0.0:* LISTEN
37312/python
the client shows the "create" button when entering "localhost" and "8000" in "Create profile"

This is so odd.
After resetting the admin password in trytond.conf to the standard "admin" the login worked again.
The "Creating database" info known from version 2.2 was skipped, the database was created, and in the "Configuring database" dialog a password was asked again (without hint which one), and it turned out to be the local database admin password (means the password created for the admin user of the newly created database).
Somewhat strange, but seems to work locally.
However, no connection via internet yet.
Internet connection solved as well.
It turns out in the end that the documentation for Ubuntu installation (on https://code.google.com/p/tryton/wiki/InstallationOnUbuntu), that currently refers the user to Debian installation, would benefit hugely from having the additional detail given in the installation for e.g. Gentoo, cause they have the actual working config file complete with postgre server settings, which was the decisive point in the end.
See http://wiki.gentoo.org/wiki/Tryton.
I already had
# Activate the json-rpc protocol
jsonrpc = localhost:8000
And after adding this, it worked like a charm:
Configure the database connection
## Note: Only databases owned by db_user will be displayed in the connection dialog
## of the Tryton client. db_user must have create permission for new databases
## to be able to use automatic database creation with the Tryton client.
db_host = localhost
db_port = 5432
db_user = postgres
db_password = postgrsqlpassword
db_minconn = 1
db_maxconn = 64
In my case, I have tryton as database user, some instructions prefer this, obviously for security reasons. By using postgres (the built-in master administrator for PostgreSQL) as database user, you can circumvent having to add the tryton role to postgres (the standard package install with apt-get on Ubuntu adds that automatically anyway iirc).

Using fabric how can I supply a password for psql?

I want to be able to log in to my AWS postgres database from a remote machine. I am using the following Fabric script:
import sys
from fabric.api import env, run, abort
env.port = 123
env.use_ssh_config = True
def setuser(user):
"""Sets the ssh user for the fabric script"""
env.user = user
env.password = 'mypassword'
def setenv(server):
"""Sets the environment for the fabric script"""
env.hosts = ['staging']
def sync():
# log into AWS server
run("psql --host=staging.xxx.rds.amazonaws.com --username=x_user --port=5432 --password --dbname=x_database")
run("mypassword")
I run this Fabric script using the following command:
fab -f sync_staging.py sync --password=mypassword
This logs me into the remote machine, runs the line run("psql .... and then it prompts me for a password:
[stage] out: Password for user x_user:
Is there any way that I can supply the password (or respond to the prompt) such that it logs me in automatically?

There are 2 ways of solving this that I know of:
.pgpass password file in your home directory on remote host
PGPASSWORD env variable (set on remote host)
If you need to set an environment variable on remote host, use with shell_env(PGPASSWORD='mypassword'), Fabric docs here: fabric.context_managers.shell_env
Hope it solves your problem.

Permission denied on git repository with Fabric

I'm writing a fab script to do a git pull on a remote server, but I get Permission denied (publickey,keyboard-interactive). when fabric runs the command.
If I ssh to the server and then do the pull, it works. (I've already setup the keys on the server, so it doesn't ask for passphrases, etc.)
Here's my fabric task:
import fabric.api as fab
def update():
'''
update workers code
'''
with fab.cd('~/myrepo'):
# pull changes
print colors.cyan('Pulling changes...')
fab.run('git pull origin master')
How do I get it to work with Fabric?
Edit: My server is a Google Compute instance, and it provides a gcutil tool to ssh to the instance. This is the command it runs to connect to the server:
ssh -o UserKnownHostsFile=/dev/null -o CheckHostIP=no -o StrictHostKeyChecking=no -i /Users/John/.ssh/google_compute_engine -A -p 22 John#123.456.789.101
The script is able to connect to the server AFAICT (it's able to run commands on the server like cd and supervisor and git status), it's just git pull that fails.

you need to edit fabfile like this in order to enable ssh agent fowarding option.
from fabric.api import *
env.hosts = ['123.456.789.101']
env.user = 'John'
env.key_filename = '/Users/John/.ssh/google_compute_engine'
env.forward_agent = True
def update():
'''
update workers code
'''
with cd('~/myrepo'):
# pull changes
print colors.cyan('Pulling changes...')
run('git pull origin master')

Python subprocess on remote MS Windows host

I'm trying to run netsh command on remote windows hosts (windows domain environment with admin rights). The following code works fine on local host but I would like to run it on remote hosts as well using python.
import subprocess
netshcmd=subprocess.Popen('netsh advfirewall show rule name=\”all\”', shell=True, stderr=subprocess.PIPE, stdout=subprocess.PIPE )
output, errors = netshcmd.communicate()
The problem is that I'm no sure how/what method to use to initiate the connection to remote hosts and then run the subprocess commands. I cannot use ssh or pstools and would like try to implement it using existing pywin32 modules if possible.
I have used WMI module in a past which makes it very easy to query remote host but I couldn't find any way to query firewall policies over WMI and that's why using subprocess.

First you login the remote host machine using of pxssh modules Python: How can remote from my local pc to remoteA to remoteb to remote c using Paramiko
remote login of windows:
child = pexpect.spawn('ssh tiger#172.16.0.190 -p 8888')
child.logfile = open("/tmp/mylog", "w")
print child.before
child.expect('.*Are you sure you want to continue connecting (yes/no)?')
child.sendline("yes")
child.expect(".*assword:")
child.sendline("tiger\r")
child.expect('Press any key to continue...')
child.send('\r')
child.expect('C:\Users\.*>')
child.sendline('dir')
child.prompt('C:\Users\.*>')
Python - Pxssh - Getting an password refused error when trying to login to a remote server
and send your netsh command

I will recommend using Fabric, it's a powerful python tool with a suite of operations for executing local or remote shell commands, as well as auxiliary functionality such as prompting the running user for input, or aborting execution:
install fabric : pip install fabric
write the following script named remote_cmd.py:
"""
Usage:
python remote_cmd.py ip_address username password your_command
"""
from sys import argv
from fabric.api import run, env
def set_host_config(ip, user, password):
env.host_string = ip
env.user = user
env.password = password
def cmd(your_command):
"""
executes command remotely
"""
output = run(your_command)
return output
def main():
set_host_config(argv[1], argv[2], argv[3])
cmd(argv[4]))
if __name__ == '__main__':
main()
Usage:
python remote_cmd.py ip_address username password command