ownCloud updating from apt repositories fails

[olifre]

Note that another place where these values are used is the unattended-upgrades configuration, i.e. for whitelisting allowed origins, as shown here:

Unattended-upgrades not working on Ubuntu (Debian)

I want to use “unattended-upgrades” in Ubuntu 20.04 to keep my client automatically up-to-date. According to “apt policy” this means I need to include the origin of the package, i.e. “https://minio.owncloud.services/clients/build-linux/${DRONE_BUILD_NUMBER}/repo/” into the list of Allowed-Origins in “/etc/apt/apt.conf.d/50unattended-upgrades”. Since the string includes a colon, whereas unattended-upgrades parser uses it to separate package origin from archive, I escaped the additional colon(s), …