Template:Using Internet Repositories for apk-tools
Edit the /etc/apk/repositories file and if necessary, add references to the Alpine package repositories. In the example below, the reference to the Alpine CD is maintained, so that if the requested package is available on the local media, it will be obtained from there instead of being downloaded from the remote repository:
/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v1.10/packages/main
Only one repository is shown above, however, you may also use these:
http://dl-4.alpinelinux.org/alpine/v1.10/packages/main http://distrib-coffee.ipsl.jussieu.fr/pub/linux/alpine/alpine/v1.10/packages/main
After updating the repositories file, obtain the latest index of available packages:
apk update