Process management with supervisor in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the Supervisor service on Raspberry Pi.

Raspberry Pi

sudo systemctl [1] supervisor

Drag options to blanks, or click blank then click option'

Astop

Brestart

Cstatus

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'stop' instead of 'start' stops the service.

Using 'status' only shows the service state without starting it.

To start the Supervisor service, use start with systemctl.

2fill in blank

medium

Complete the Supervisor configuration file to set the command to run a Python script.

Raspberry Pi

[program:myapp]
command=[1] /home/pi/myapp.py
autostart=true
autorestart=true

Drag options to blanks, or click blank then click option'

Abash

Bpython3

Csh

Dnode

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'bash' or 'sh' runs shell scripts, not Python scripts.

Using 'node' is for JavaScript, not Python.

The command should use python3 to run a Python script.

3fill in blank

hard

Fix the error in the Supervisor command to reload configuration.

Raspberry Pi

sudo supervisorctl [1]

Drag options to blanks, or click blank then click option'

Areload

Brestart

Cstart

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'restart' restarts all programs but does not reload config files.

Using 'start' or 'stop' affects program states, not config reload.

The reload command tells Supervisor to reload its configuration files.

4fill in blank

hard

Fill both blanks to create a Supervisor program config that runs a script with auto restart on failure.

Raspberry Pi

[program:worker]
command=[1] /home/pi/worker.py
autorestart=[2]

Drag options to blanks, or click blank then click option'

Apython3

Bfalse

Ctrue

Dbash

Attempts:

3 left

💡 Hint

Common Mistakes

Setting autorestart to false disables automatic restart on failure.

Using 'bash' runs shell scripts, not Python scripts.

Use python3 to run the script and set autorestart=true to auto restart.

5fill in blank

hard

Fill all three blanks to define a Supervisor program that runs a Node.js app with autorestart and logs enabled.

Raspberry Pi

[program:webapp]
command=[1] /home/pi/app.js
autorestart=[2]
stdout_logfile=[3]

Drag options to blanks, or click blank then click option'

Anode

Btrue

C/var/log/webapp.log

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Setting autorestart to false disables automatic restart.

Not specifying a log file means no output is saved.

Use node to run the app, set autorestart=true, and specify the log file path.