我试图在我的结构脚本中宣布部署开始和结束。感觉这应该很容易，但对于我来说，我不知道该怎么做。
env.hosts = ['www1', 'www2', 'www3', 'www4']
def announce_start():
# code to connect to irc server and announce deployment begins
pass
def announce_finish():
# code to connect to irc server and announce deployment finishes
pass
def deploy():
# actual deployment code here
pass
这是我尝试过的：
如果我使部署任务包含“announce_start”和“announce_finish”。它将尝试在每台服务器上运行所有这些任务。
def deploy():
announce_start()
# actual deployment code here
announce_finish()
如果我用@hosts('localhost')装饰announce_start()和announce_end()，它会在本地主机上运行它，但仍然是四次。每个主机一个。
当我输入此内容时，我终于通过在announce_start/end 上使用装饰器 @hosts('localhost') 和 fab 命令使其工作：
fab announce_start deploy announce_end
但这似乎有点老套。我希望将其全部包含在一个部署命令中。有没有办法做到这一点？
您可以使用fabric.api.execute，例如
def announce_start():
# code to connect to irc server and announce deployment begins
pass
def announce_finish():
# code to connect to irc server and announce deployment finishes
pass
@hosts(...)
def deploy_machine1():
pass
@hosts(...)
def deploy_machine2():
pass
def deploy():
announce_start()
execute(deploy_machine1)
execute(deploy_machine2)
announce_finish()
然后调用 fab 部署
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