Real-time output for Paramiko exec_command

Question

NOTE: I have seen other posts on this, but not a single post can explain the answer, nor do they have one that works.

Is there a way to get the output of exec_command, specifically for exec_command('docker run <CONTAINER_ID>') in real-time for the Paramiko package?

score 9 · Accepted Answer · edited Sep 21 '20 at 23:34

9

You may read lines from ChannelFile (http://docs.paramiko.org/en/2.4/api/channel.html?highlight=stdout#paramiko.channel.ChannelFile).

Example:

stdin, stdout, stderr = client.exec_command('docker run <CONTAINER_ID>')
while True:
    line = stdout.readline()
    if not line:
        break
    print(line, end="")

edited Sep 21 '20 at 23:34

SomeGuyOnAComputer

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answered Apr 12 '19 at 11:12

gbajson

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Worked perfectly! Thank you – M. Barbieri Apr 18 '19 at 20:51
Nice!...... bor. – Xiak Jan 10 '21 at 09:04
When using this I noticed it is as if my shell script runs async, even though I'm using `;` between commands. Is this maybe a side effect of `readline()` method? – lowercase00 Mar 24 '22 at 04:11

Real-time output for Paramiko exec_command

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