juju-core

juju run doesn't work with subordinate units

Bug #1286613 reported by Kapil Thangavelu
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
juju-core
Fix Released
Medium
Marco Ceppi
juju-core 1.21-alpha2

Bug Description

i was trying to use juju run to debug current settings for a subordinate unit ala

$ juju run --unit=agent/0 "relation-ids ceilometer-service"
ERROR agent/0 is not a principal unit

Revision history for this message
Kapil Thangavelu (hazmat) wrote :

If we're being explicit about which unit we want to target.. i say just let the user do it.. --all can/should nanny filter subordinates, but if a user is specifically interested in running something on a subordinate i don't see the reason not to let them.

Revision history for this message
Kapil Thangavelu (hazmat) wrote :

ie. i can juju ssh/scp into a subordinate unit without issue.. i don't see why run is being restricted.

Curtis Hovey (sinzui)
Changed in juju-core:
status: New → Triaged
importance: Undecided → High
tags: added: run subordinate
Canonical Juju QA Bot (juju-qa-bot)
Changed in juju-core:
importance: High → Medium
Revision history for this message
Robie Basak (racb) wrote :

Workaround:

"juju ssh service/0" gets me into the machine.
"juju-run service/0 ..." then seems to work.

On 1.20.7.

Revision history for this message
Robie Basak (racb) wrote :

Python workaround:

import subprocess

def remote_run(unit, command):
    subprocess.check_call(['juju', 'ssh', unit] + command)

def remote_run_run(unit1, unit2, command):
    remote_run(unit1, ['juju-run', unit2, "'%s'" % command])

Then I can call, for example:

    remote_run_run('main-service/0', 'subordinate-service/0', '...')

Revision history for this message
Marco Ceppi (marcoceppi) wrote :

https://github.com/juju/juju/pull/447

Changed in juju-core:
status: Triaged → Fix Committed
assignee: nobody → Marco Ceppi (marcoceppi)
Curtis Hovey (sinzui)
Changed in juju-core:
milestone: none → 1.21-alpha2
Curtis Hovey (sinzui)
Changed in juju-core:
status: Fix Committed → Fix Released
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