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Test OpenL2M using Docker Compose

This is a Docker Compose configuration to quickly test OpenL2M (NOT for production use!)

OpenL2M Docker TEST Setup

These files can be used to build a TEST instance of OpenL2M in a docker container, using "docker compose"

Note: you do NOT need to create a local git clone of the OpenL2M source code for this!

Below are steps that appear to work, with some additional testing hints...

Requirements: - a working docker host. - rights to "sudo" or otherwize run docker, create new containers, etc. - some working knowledge of using docker with compose. - git installed.

Test Setup Steps

1 - clone the docker compose config. We use the directory "/opt/openl2m-docker-test/". Change as needed.

        sudo mkdir -p /opt/openl2m-docker-test
        cd /opt/openl2m-docker-test
        sudo git clone https://github.com/openl2m/docker-test .

2 - Copy the compose.override.example.yaml file:

        cp compose.override.example.yaml compose.override.yaml

and edit this file, if you need to change passwords or public ports.

3 - Run docker:

        sudo docker compose up

This will take a while. It pulls images from docker repositories, downloads OpenL2M and then builds the application.

Note: this will map the test version of OpenL2M to port 8000 on your Docker host. If you need to use a different port, please see the file "compose.override.example.yaml"

If you get something like this, things are running:

        openl2m-1   |   Applying ...
        openl2m-1   | Updating Wireshark Ethernet database...
        openl2m-1   | Initialization done!
        openl2m-1   | OpenL2M will now start FOR TESTING PURPOSES ONLY!
        openl2m-1   | Performing system checks...
        <a few other lines...>

Test from a browser, to "http://:8000/". If you get the login screen, things are running!

Now hit Control-C, and run the containers as a daemon:

        sudo docker compose up -d

4 - Open a shell to the "openl2m" container, to create the superuser account:

        sudo docker exec -ti openl2m-testing-openl2m-1 bash

In this new shell, run:

        python3.11 openl2m/manage.py createsuperuser

follow the prompts, and when done:

        exit

to get back to the host environment.

5 - go back to the web site, login and test as needed!

NOTE: this includes the documentation on the web site...

6 - stop when done. Run:

    sudo docker compose down

Other Docker Things:

NOTE: Docker is a rich container environment, and showing all options is beyond the scope of this README.txt!

  • if you want to test a specific testing branch of OpenL2M, edit the compose.override.yaml file:
    - BRANCH=<branch-name>
  • To clean up and rebuild the OpenL2M container to test new code (and leave the database intact):
    sudo docker compose build --no-cache openl2m

Be patient, this copies files again, and reinstalls the python dependencies... Next run this to restart the containers:

    sudo docker compose up -d
  • To clean up most everything related to OpenL2M, run:
    sudo docker compose down
    sudo docker image rm openl2m:test-build
    sudo docker volume rm openl2m-testing_postgres_data

If you really want to cleanup everything (make sure you know what this does!):

    sudo docker system prune -a

Debugging

NOTE: This is NOT for the faint-of-heart! This is intended to help with debugging and troubleshooting only! Please make sure you understand what you're doing before going this route!

  • To enable DEBUG MODE, edit the compose.override.yaml file:
    - DEBUG=True
  • To EDIT configuration (or code) inside the OpenL2M container for testing:

run the container in daemon mode:

    sudo docker compose up -d

You can now open a shell into the OpenL2M container, and edit with 'nano' or 'vi' :

    sudo docker exec -ti openl2m-testing-openl2m-1 bash
    # you are now already in the /opt/openl2m directory, so paths are relative to that!

    # e.g. edit the configuration:
    vi openl2m/configuration.py

    # since the daemon is running Django with the built-in webserver, file changes take effect immediately!
    # refresh the page in your browser as needed...

    # when done:
    exit
    # and back in the server shell:
    sudo docker compose down

Restart and you can now see lots of console debug messages when you login to web site.