Upgrading a CKAN 1 package install to CKAN 2.x¶
If you want to upgrade a CKAN 1.x package install to a newer version of CKAN 1 (as opposed to upgrading to CKAN 2), see the documentation relevant to the old CKAN packaging system.
The CKAN 2.x packages require Ubuntu 20.04 64-bit or 18.04 64-bit, whereas previous CKAN packages used Ubuntu 10.04. CKAN 2.x also introduces many backwards-incompatible feature changes (see the changelog). So it’s not possible to automatically upgrade to a CKAN 2.x package install.
However, you can install CKAN 2.x (either on the same server that contained your CKAN 1.x site, or on a different machine) and then manually migrate your database and any custom configuration, extensions or templates to your new CKAN 2.x site. We will outline the main steps for migrating below.
Create a dump of your CKAN 1.x database.
If you want to install CKAN 2.x on the same server that your CKAN 1.x site was on, uninstall the CKAN 1.x package first:
sudo apt-get autoremove ckan
Load your database dump from CKAN 1.x into CKAN 2.x. This will migrate all of your datasets, resources, groups, tags, user accounts, and other data to CKAN 2.x. Your database schema will be automatically upgraded, and your search index rebuilt.
First, activate your CKAN virtual environment and change to the ckan dir:
. /usr/lib/ckan/default/bin/activate cd /usr/lib/ckan/default/src/ckan
Now load your database dump into CKAN 2.x. If you’ve installed CKAN 2.x on a different machine from 1.x, first copy the database dump file to that machine.
If you had any custom config settings in your CKAN 1.x instance that you want to copy across to your CKAN 2.x instance, then update your CKAN 2.x /etc/ckan/default/production.ini file with these config settings. Note that not all CKAN 1.x config settings are still supported in CKAN 2.x, see Configuration Options for details.
In particular, CKAN 2.x introduces an entirely new authorization system and any custom authorization settings you had in CKAN 1.x will have to be reconsidered for CKAN 2.x. See Organizations and authorization for details.
If you had any extensions installed in your CKAN 1.x instance that you also want to use with your CKAN 2.x instance, install those extensions in CKAN 2.x. Not all CKAN 1.x extensions are compatible with CKAN 2.x. Check each extension’s documentation for CKAN 2.x compatibility and install instructions.
If you had any custom templates in your CKAN 1.x instance, these will need to be adapted before they can be used with CKAN 2.x. CKAN 2.x introduces an entirely new template system based on Jinja2 rather than on Genshi. See Theming guide for details.