TIL: How to Fix Did No Resolve Alias Errors in Podman
Recently, I was trying to pull docker images using podman, on an Ubuntu laptop and was getting an error which
looked something like:
Error: error creating build container: short-name "node:18.17" did not resolve to an alias and no unqualified-search registries are defined in "/etc/containers/registries.conf"
This is because Podman doesn’t allow us to use short names, by default we need to specify the registry i.e. docker.io/node:18.17.
But for existing docker-compose.yml files, this would be a pain to edit. Especially because most people use Docker
not Podman. So, in the end, you can edit a config file in home directory to enable the old way of pulling images.
nvim ~/.config/containers/registries.conf
# Add the following
unqualified-search-registries=["docker.io"]
You could also do it machine wide by editing the file /etc/containers/registries.conf.
That’s it! Real short one today! This just stumped me today for like 20 minutes.