问题描述
我坚持要求客户端fab doit('my_ssh_key') refresh('dev')在Windows上运行（更新远程开发服务器）的客户端。
因此，我在linux（薄荷）中尝试了该命令，并得到了"bash: Syntax error near unexpected token （'“`。
因此我加了引号fab "doit('my_ssh_key')" "refresh('dev')"，并且标题中出现了错误消息（与我用斜杠转义括号的情况相同）。
如何使它工作？
这是fabfile。 fabfile.py：
###################################################################
#
# Usage:
# fab doit(path_to_ssh_key) refresh('dev|staging')
# fab doit(path_to_ssh_key) maintenanceon('dev|staging')
# fab doit(path_to_ssh_key) maintenanceoff('dev|staging')
#
# fab doit(path_to_ssh_key) productionrefresh
#
# Example: fab doit('c:\users\tom\.ssh\id_rsa.pem') maintenanceon('dev')
#
# If you use a passphrase then add --prompt-for-passphrase
####################################################################
from fabric import task,Connection
@task
def doit(ctx,keypath):
ctx.user = 'django'
ctx.host = '<servername>'
ctx.connect_kwargs.key_filename = ''.format(keypath)
@task
def maintenanceon(ctx,server):
conn = Connection(ctx.host,ctx.user,connect_kwargs=ctx.connect_kwargs)
# create ln to maintenance file
print('maintenance on')
with conn.cd('/usr/share/Nginx/html/'):
conn.run('sudo ln -sf /home/django/sites/{0}.<servername>/src/project/templates/maintenance.html {0}-maintenance.html'.format(server))
@task
def maintenanceoff(ctx,connect_kwargs=ctx.connect_kwargs)
# create ln to maintenance file
print('maintenance off')
with conn.cd('/usr/share/Nginx/html/'):
conn.run('sudo unlink {}-maintenance.html'.format(server))
@task
def refresh(ctx,server):
env_command = '. /home/django/sites/{0}.<servername>.com/{0}/bin/activate'.format(server)
conn = Connection(ctx.host,connect_kwargs=ctx.connect_kwargs)
# set to maintenance mode
with conn.cd('/usr/share/Nginx/html/'):
print('maintenance on')
conn.run('sudo ln -sf /home/django/sites/{0}.<servername>.com/src/project/templates/maintenance.html {0}-maintenance.html'.format(server))
# refresh install
with conn.cd('/home/django/sites/{}.<servername>.com/src/'.format(server)):
print('git pull')
conn.run('git pull')
# check requirements
with conn.cd('/home/django/sites/{}.<servername>.com/src/requirements/'.format(server)):
print('pip-sync')
conn.run(env_command + '&&' + 'pip-sync {}.txt'.format(server))
# run migrations and collectstatic
with conn.cd('/home/django/sites/{}.<servername>.com/src/project/'.format(server)):
print('migrate')
conn.run(env_command + '&&' + 'python manage.py migrate')
print('collecstatic')
conn.run(env_command + '&&' + 'python manage.py collectstatic --no-input')
# restart server
print('restart server')
conn.sudo('systemctl restart {}.service'.format(server),pty=True)
# maintenance mode off
with conn.cd('/usr/share/Nginx/html/'):
print('maintenance off)')
conn.run('sudo unlink {}-maintenance.html'.format(server))
@task
def productionrefresh(ctx):
env_command = '. /home/django/sites/www.<servername>.com/www/bin/activate'
conn = Connection(ctx.host,connect_kwargs=ctx.connect_kwargs)
# set to maintenance mode
with conn.cd('/usr/share/Nginx/html/'):
print('Set to maintenance mode')
conn.run('sudo ln -sf /home/django/sites/www.<servername>.com/src/project/templates/maintenance.html prod-maintenance.html')
# refresh install
with conn.cd('/home/django/sites/www.<servername>.com/src/'):
print('Git pull')
conn.run('git pull')
# check requirements
with conn.cd('/home/django/sites/www.<servername>.com/src/requirements/'):
print('pip-sync production.txt')
conn.run(env_command + '&&' + 'pip-sync production.txt')
# run migrations and collectstatic
with conn.cd('/home/django/sites/www.<servername>.com/src/project/'):
print('python manage.py migrate')
conn.run(env_command + '&&' + 'python manage.py migrate')
print('python manage.py collectstatic')
conn.run(env_command + '&&' + 'python manage.py collectstatic --no-input')
# restart server
print('restart production service')
conn.sudo('systemctl restart production.service',pty=True)
# maintenance mode off
with conn.cd('/usr/share/Nginx/html/'):
print('maintenance off')
conn.run('sudo unlink prod-maintenance.html')
@task
def productioncollect(ctx):
env_command = '. /home/django/sites/www.<servername>.com/www/bin/activate'
conn = Connection(ctx.host,connect_kwargs=ctx.connect_kwargs)
with conn.cd('/home/django/sites/www.<servername>.com/src/project/'):
conn.run(env_command + '&&' + 'python manage.py collectstatic --no-input')
更新：
我遵循RedKrieg的回答，并遇到以下错误：
maintenance on
Traceback (most recent call last):
File "/home/michael/projects/campaignfinances/venv/bin/fab",line 8,in <module>
sys.exit(program.run())
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/invoke/program.py",line 384,in run
self.execute()
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/invoke/program.py",line 566,in execute
executor.execute(*self.tasks)
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/invoke/executor.py",line 129,in execute
result = call.task(*args,**call.kwargs)
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/invoke/tasks.py",line 127,in __call__
result = self.body(*args,**kwargs)
File "/home/michael/projects/campaignfinances/fabfile.py",line 51,in refresh
conn.run('sudo ln -sf /home/django/sites/{0}.<servername>.com/src/project/templates/maintenance.html {0}-maintenance.html'.format(server))
File "<decorator-gen-3>",line 2,in run
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/fabric/connection.py",line 29,in opens
self.open()
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/fabric/connection.py",line 634,in open
self.client.connect(**kwargs)
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/paramiko/client.py",line 340,in connect
to_try = list(self._families_and_addresses(hostname,port))
File "/home/michael/projects/campaignfinances/venv/lib/python3.6/site-packages/paramiko/client.py",line 204,in _families_and_addresses
hostname,port,socket.AF_UNSPEC,socket.soCK_STREAM
File "/usr/lib/python3.6/socket.py",line 745,in getaddrinfo
for res in _socket.getaddrinfo(host,family,type,proto,flags):
socket.gaierror: [Errno -2] Name or service not kNown
我在同时进行fab doit --keypath='cf_key' refresh --server='dev'和fab doit 'cf_key' refresh 'dev' 时遇到此错误
解决方法
您的问题与布料无关。您的客户对您说谎是因为fab命令行工具永远不会（也永远不会）使用该语法。要将参数传递给fabric2中的fab任务（在此处的Python代码中使用），您必须使用invoke样式任务参数。对于您的示例，以下将是正确语法的示例：
#positional arguments
fab doit 'c:\users\tom\.ssh\id_rsa.pem' refresh 'dev|staging'
#named arguments,equals is optional
fab doit --keypath='c:\users\tom\.ssh\id_rsa.pem' maintenanceon --server='dev|staging'
http://docs.pyinvoke.org/en/latest/concepts/invoking-tasks.html#task-command-line-arguments