Incremental stdout out of fabric












1















I'm new to fabric and want to run a long-running script on a remote computer, so far, I have been using something like this:



import fabric

c = fabric.Connection("192.168.8.16") # blocking

result = c.run("long-running-script-outputing-state-information-into-stdout.py")


Is there a way to read stdout as it comes asynchronously instead of using the 'result' object that can be used only after the command has finished?






python linux fabric







share|improve this question























  • I don't know exactly what you do mean, but normally fabric displays the output of an command that is being executed! If you try to do for example pip install -r requirements.txt which will install all required and pre-defined python modules, you will see the whole output!

    – Peshmerge
    Nov 16 '18 at 15:20











  • What I am trying to achieve is something like p = subprocess.Popen(["ls"], stdout=subprocess.PIPE, stderr=subprocess.PIPE), where the command can run asynchronously and you can read its output from pipe while it's still running.

    – Martin
    Nov 18 '18 at 15:37
















1















I'm new to fabric and want to run a long-running script on a remote computer, so far, I have been using something like this:



import fabric

c = fabric.Connection("192.168.8.16") # blocking

result = c.run("long-running-script-outputing-state-information-into-stdout.py")


Is there a way to read stdout as it comes asynchronously instead of using the 'result' object that can be used only after the command has finished?






python linux fabric







share|improve this question























  • I don't know exactly what you do mean, but normally fabric displays the output of an command that is being executed! If you try to do for example pip install -r requirements.txt which will install all required and pre-defined python modules, you will see the whole output!

    – Peshmerge
    Nov 16 '18 at 15:20











  • What I am trying to achieve is something like p = subprocess.Popen(["ls"], stdout=subprocess.PIPE, stderr=subprocess.PIPE), where the command can run asynchronously and you can read its output from pipe while it's still running.

    – Martin
    Nov 18 '18 at 15:37














1












1








1








I'm new to fabric and want to run a long-running script on a remote computer, so far, I have been using something like this:



import fabric

c = fabric.Connection("192.168.8.16") # blocking

result = c.run("long-running-script-outputing-state-information-into-stdout.py")


Is there a way to read stdout as it comes asynchronously instead of using the 'result' object that can be used only after the command has finished?






python linux fabric







share|improve this question














I'm new to fabric and want to run a long-running script on a remote computer, so far, I have been using something like this:



import fabric

c = fabric.Connection("192.168.8.16") # blocking

result = c.run("long-running-script-outputing-state-information-into-stdout.py")


Is there a way to read stdout as it comes asynchronously instead of using the 'result' object that can be used only after the command has finished?






python linux fabric




python linux fabric






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 15 '18 at 20:23









MartinMartin

1568




1568













  • I don't know exactly what you do mean, but normally fabric displays the output of an command that is being executed! If you try to do for example pip install -r requirements.txt which will install all required and pre-defined python modules, you will see the whole output!

    – Peshmerge
    Nov 16 '18 at 15:20











  • What I am trying to achieve is something like p = subprocess.Popen(["ls"], stdout=subprocess.PIPE, stderr=subprocess.PIPE), where the command can run asynchronously and you can read its output from pipe while it's still running.

    – Martin
    Nov 18 '18 at 15:37



















  • I don't know exactly what you do mean, but normally fabric displays the output of an command that is being executed! If you try to do for example pip install -r requirements.txt which will install all required and pre-defined python modules, you will see the whole output!

    – Peshmerge
    Nov 16 '18 at 15:20











  • What I am trying to achieve is something like p = subprocess.Popen(["ls"], stdout=subprocess.PIPE, stderr=subprocess.PIPE), where the command can run asynchronously and you can read its output from pipe while it's still running.

    – Martin
    Nov 18 '18 at 15:37

















I don't know exactly what you do mean, but normally fabric displays the output of an command that is being executed! If you try to do for example pip install -r requirements.txt which will install all required and pre-defined python modules, you will see the whole output!

– Peshmerge
Nov 16 '18 at 15:20





I don't know exactly what you do mean, but normally fabric displays the output of an command that is being executed! If you try to do for example pip install -r requirements.txt which will install all required and pre-defined python modules, you will see the whole output!

– Peshmerge
Nov 16 '18 at 15:20













What I am trying to achieve is something like p = subprocess.Popen(["ls"], stdout=subprocess.PIPE, stderr=subprocess.PIPE), where the command can run asynchronously and you can read its output from pipe while it's still running.

– Martin
Nov 18 '18 at 15:37





What I am trying to achieve is something like p = subprocess.Popen(["ls"], stdout=subprocess.PIPE, stderr=subprocess.PIPE), where the command can run asynchronously and you can read its output from pipe while it's still running.

– Martin
Nov 18 '18 at 15:37












1 Answer
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If you want to use fabric to do some stuff remotely, you have first of all follow this structure to make a connection: 



@task(hosts=["servername"])

def do_things(c):

     with connection(host=host, user=user,) as c:

        c.run("long-running-script-outputing-state-information-into-stdout.py")


This will output the whole output regardless what you are doing!



you have to use with connection(host=host, user=user,) as c: to ensure that everything you run will run within that connection context!






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    active

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    0














    If you want to use fabric to do some stuff remotely, you have first of all follow this structure to make a connection: 



    @task(hosts=["servername"])
    
def do_things(c):
    
     with connection(host=host, user=user,) as c:
    
        c.run("long-running-script-outputing-state-information-into-stdout.py")


    This will output the whole output regardless what you are doing!



    you have to use with connection(host=host, user=user,) as c: to ensure that everything you run will run within that connection context!






    share|improve this answer




























      0














      If you want to use fabric to do some stuff remotely, you have first of all follow this structure to make a connection: 



      @task(hosts=["servername"])
      
def do_things(c):
      
     with connection(host=host, user=user,) as c:
      
        c.run("long-running-script-outputing-state-information-into-stdout.py")


      This will output the whole output regardless what you are doing!



      you have to use with connection(host=host, user=user,) as c: to ensure that everything you run will run within that connection context!






      share|improve this answer


























        0












        0








        0







        If you want to use fabric to do some stuff remotely, you have first of all follow this structure to make a connection: 



        @task(hosts=["servername"])
        
def do_things(c):
        
     with connection(host=host, user=user,) as c:
        
        c.run("long-running-script-outputing-state-information-into-stdout.py")


        This will output the whole output regardless what you are doing!



        you have to use with connection(host=host, user=user,) as c: to ensure that everything you run will run within that connection context!






        share|improve this answer













        If you want to use fabric to do some stuff remotely, you have first of all follow this structure to make a connection: 



        @task(hosts=["servername"])
        
def do_things(c):
        
     with connection(host=host, user=user,) as c:
        
        c.run("long-running-script-outputing-state-information-into-stdout.py")


        This will output the whole output regardless what you are doing!



        you have to use with connection(host=host, user=user,) as c: to ensure that everything you run will run within that connection context!







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 16 '18 at 15:24









        PeshmergePeshmerge

        427521




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