trigger_1170.py

import subprocess
import time
import sys

#takes an argument with the vmname. Use a guest using the 18.04 image, not the 16.04 image.
#like `python trigger_1170.py intrigued-stag`
#otherwise uses primary

vmname = "primary"

if len(sys.argv) < 2:
    print("Using primary")
else:
    vmname = sys.argv[1]

# This command does not trigger the bug
#command = ['multipass', 'exec', str(vmname), '--', 'echo', 'hello']
# This does!
command = ['multipass', 'exec', str(vmname), '--', 'sudo', '-i', 'env', 'printenv', 'HOME']

# This may take a few iterations, but the bug will eventually be triggered
while True:
    print("testing output...")
    print(str(subprocess.check_output(command)))