下面是我一直致力于在远程服务器上安装软件包的一小段代码。代码工作正常并且正在安装软件包，但是安装完成后我会提示输入密码。知道是什么原因造成的吗？
import re
import os
import sys
from datetime import datetime
import git
from fabric.api import run, local, cd, env
from fabric.contrib.files import exists, append
from fabric.operations import put, sudo
class WebAppConf():
APPLICATION_DIR = '/home/xxx/webapps'
APPLICATION_USER = '' # mazban
APPLICATION_ROOT = ''
APPLICATION_TEMPLATE_SETTINGS = 'com_work' # see config/settings/templates
BASE_DIR = os.path.abspath(os.path.dirname(__file__))
###########################################################################
# CONFIGURATION FOR DEVELOPMENT, STAGING, TESTING AND PRODUCTION SETTINGS - START #
###########################################################################
def test():
env.hosts = env.hosts or ['192.168.3.139', ]
env.user = 'xxx'
env.password = "xxx"
env.warn_only = True
env.no_keys = True
# App variables
WebAppConf.APPLICATION_DIR = '/home/xxx/webapps' # application physical location
WebAppConf.APPLICATION_USER = env.user
WebAppConf.APPLICATION_ROOT = env.user
WebAppConf.APPLICATION_TEMPLATE_SETTINGS = 'testing'
def staging():
env.hosts = env.hosts or ['xxx-staging.com', ]
env.user = 'xxx'
env.password = "xx"
env.warn_only = True
env.no_keys = True
def production():
"""
Production will deploay on one or many frontend's
for peroduction deployment no password will be used and only ssh keys
"""
env.hosts = env.hosts or ['xxx.com', ]
env.user = APPLICATION_USER
env.password = "xx"
env.warn_only = True
env.no_keys = True
##########################################################################
# CONFIGURATION FOR DEVELOPMENT, STAGING, TESTING AND PRODUCTION SETTINGS - END #
##########################################################################
def firstrun():
## if no env is selected it will fail
if not env.hosts:
print 'Error: must use environment (e.g fab prod %s)' % 'firstrun'
exit()
# validate the OS distribution and version
LINUX_DISTRIBUTION = ''
if run('cat /etc/*-release|grep DISTRIB_ID').upper().__contains__('UBUNTU'):
LINUX_DISTRIBUTION = 'UBUNTU'
print 'Ubuntu Linux'
elif run('cat /etc/*-release|grep DISTRIB_ID').upper().__contains__('DEBIAN'):
LINUX_DISTRIBUTION = 'DEBIAN'
print 'Debian Linux'
else:
print 'Exiting (Cannot recognize linux distribution).'
exit()
# Linux version
LINUX_VERSION = run('cat /etc/*-release|grep DISTRIB_RELEASE')
print 'Linux version %s' % LINUX_VERSION.replace('DISTRIB_RELEASE=', '')
# GET PYTHON VERSIONS
version = run("python2.6 -V").split()[1]
if version[0]=='2' and version[2]=='6' and version[4]=='6':
# version installed matches the requirements
print 'Python version is compatible with this application (2.6.6).'
else:
print 'Python version is not compatible with this application %s' % version[0]+'.'+version[2]+'.'+version[4]
_sudo('apt-get install python2.6')
version = run("python2.6 -V").split()[1]
if version[0]=='2' and version[2]=='6' and version[4]=='6':
print 'python 2.6.6 installed successfully.'
else:
print 'cannot install python 2.6.6'
exit()
if not exists('/usr/bin/pip'):
print "installing python-pip package"
_sudo('apt-get install python-pip')
if not exists('/usr/local/bin/virtualenv'):
print 'installing virtualenv'
_sudo('pip install -E /usr/bin/python2.6 virtualenv')
# application directory check
MAKE_APPLICATION_DIR = False
if not exists(WebAppConf.APPLICATION_DIR):
MAKE_APPLICATION_DIR = True
print '%s does not exist.' % WebAppConf.APPLICATION_DIR
run('mkdir -p %s' % WebAppConf.APPLICATION_DIR)
print '%s application directory is created successfully.' % WebAppConf.APPLICATION_DIR
# change to application root directory and start preparing for applications
#with cd(WebAppConf.APPLICATION_DIR):
return
执行函数时的输出
mo@ubuntu:~/Projects/mazban/mazban$ fab test firstrun
[192.168.3.139] Executing task 'firstrun'
[192.168.3.139] run: cat /etc/*-release|grep DISTRIB_ID
[192.168.3.139] out: DISTRIB_ID=Ubuntu
[192.168.3.139] out:
Ubuntu Linux
[192.168.3.139] run: cat /etc/*-release|grep DISTRIB_RELEASE
[192.168.3.139] out: DISTRIB_RELEASE=11.04
[192.168.3.139] out:
Linux version 11.04
[192.168.3.139] run: python2.6 -V
[192.168.3.139] out: /bin/bash: python2.6: command not found
[192.168.3.139] out:
Warning: run() encountered an error (return code 127) while executing 'python2.6 -V'
Python version is not compatible with this application p.t.o
[192.168.3.139] sudo: apt-get install python2.6
[192.168.3.139] out: sudo password:
[192.168.3.139] out: Reading package lists... Done
[192.168.3.139] out: Building dependency tree
[192.168.3.139] out: Reading state information... Done
[192.168.3.139] out: The following extra packages will be installed:
[192.168.3.139] out: python2.6-minimal
[192.168.3.139] out: Suggested packages:
[192.168.3.139] out: python2.6-doc python2.6-profiler
[192.168.3.139] out: The following NEW packages will be installed:
[192.168.3.139] out: python2.6 python2.6-minimal
[192.168.3.139] out: 0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
[192.168.3.139] out: Need to get 3,743 kB of archives.
[192.168.3.139] out: After this operation, 14.3 MB of additional disk space will be used.
[192.168.3.139] out: Do you want to continue [Y/n]? Y
[192.168.3.139] out: Get:1 http://us.archive.ubuntu.com/ubuntu/ natty/main python2.6-minimal i386 2.6.6-6ubuntu7 [1,386 kB]
[192.168.3.139] out: Get:2 http://us.archive.ubuntu.com/ubuntu/ natty/main python2.6 i386 2.6.6-6ubuntu7 [2,357 kB]
[192.168.3.139] out: 53% [2 python2.6 602 kB/2,357 kB 25%] [192.168.3.139] out: 58% [2 python2.6 797 kB/2,357 kB 33%] [192.168.3.139] out: 63% [2 python2.6 1,001 kB/2,357 kB 42%] [192.168.3.139] out: 69% [2 python2.6 1,208 kB/2,357 kB 51%] [192.168.3.139] out: 75% [2 python2.6 1,425 kB/2,357 kB 60%] [192.168.3.139] out: 81% [2 python2.6 1,651 kB/2,357 kB 70%] [192.168.3.139] out: 87% [2 python2.6 1,890 kB/2,357 kB 80%] [192.168.3.139] out: 94% [2 python2.6 2,141 kB/2,357 kB 90%] [192.168.3.139] out: 100% [Working] [192.168.3.139] out: [192.168.3.139] out: Fetched 3,743 kB in 10s (371 kB/s)
[192.168.3.139] out: Selecting previously deselected package python2.6-minimal.
[192.168.3.139] out: (Reading database ... 131472 files and directories currently installed.)
[192.168.3.139] out: Unpacking python2.6-minimal (from .../python2.6-minimal_2.6.6-6ubuntu7_i386.deb) ...
[192.168.3.139] out: Selecting previously deselected package python2.6.
[192.168.3.139] out: Unpacking python2.6 (from .../python2.6_2.6.6-6ubuntu7_i386.deb) ...
[192.168.3.139] out: Processing triggers for man-db ...
[192.168.3.139] out: Processing triggers for bamfdaemon ...
[192.168.3.139] out: Rebuilding /usr/share/applications/bamf.index...
[192.168.3.139] out: Processing triggers for desktop-file-utils ...
[192.168.3.139] out: Processing triggers for python-gmenu ...
[192.168.3.139] out: Rebuilding /usr/share/applications/desktop.en_US.utf8.cache...
[192.168.3.139] out: Processing triggers for python-support ...
[192.168.3.139] out: Setting up python2.6-minimal (2.6.6-6ubuntu7) ...
[192.168.3.139] out: Linking and byte-compiling packages for runtime python2.6...
[192.168.3.139] out: Setting up python2.6 (2.6.6-6ubuntu7) ...
[192.168.3.139] out:
[192.168.3.139] run: python2.6 -V
[192.168.3.139] Login password:
请您参考如下方法:
我的经验有限，但我相信既然你是“sudo”安装 py2.6，你需要“sudo”才能运行它，或者至少在正确的组中(它是“wheel”还是在 Ubuntu 上有类似的东西吗？)。
我想一个简单的测试是，改变这个:
_sudo('apt-get install python2.6')
version = run("python2.6 -V").split()[1]
为此:
_sudo('apt-get install python2.6')
version = _sudo("python2.6 -V").split()[1]
并查看是否仍提示您输入密码。
