[REQUEST] Please document how to migrate from Mailman 2.1

[pcolmer]

The documentation at https://docs.mailman3.org/en/latest/migration.html specifies the following commands to be run:

mailman import21 [email protected] /path/to/mailman2/foo-list/config.pck
python manage.py hyperkitty_import -l [email protected] $var_prefix/archives/private/foo-list.mbox/foo-list.mbox
python manage.py update_index_one_list [email protected]

https://github.com/maxking/docker-mailman/issues/445 suggests:

Try running python manage.py hyperkitty_import --help inside the mailman-web container. It should work.

Presumably $var_prefix is simply replaced by the appropriate full path so I can just mount the $var_prefix directory into the container for the command to succeed.

However, I'm not clear which container holds the mailman command. Is it also the mailman-web container? Again, it looks like a mount needs to be done.

Thank you.

[maxking]

There are two command, one for importing the list configs (mailman import21) and other for importing the archives (python manage.py hyperkitty_import).

You want to run mailman import21 command inside the mailman-core container, which runs Mailman Core engine. You can copy the config.pck from your mailman2 into the container using docker cp command (https://docs.docker.com/engine/reference/commandline/cp/) or just put the file in /opt/mailman/core on the host and it should be available at /opt/mailman inside the mailman core container because of the existing volume mapping (https://github.com/maxking/docker-mailman/blob/main/docker-compose.yaml#L9).

To import the archives, you want to do the same thing in the mailman-web container. Note that the $var_prefix/... is jus the suggested path where your archives are in your mailman2 install, you essentially want the mbox file with your archives and make it visible inside the mailman-web container by either copying or adding it to /opt/mailman/web in your host which will make it available at /opt/mailman-web-data in your mailman-web container due to this mount (https://github.com/maxking/docker-mailman/blob/main/docker-compose.yaml#L36).

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