Include:Using Internet Repositories for apk-tools

Edit the /etc/apk/repositories file using an editor (nano for instance) 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:

Contents of /etc/apk/repositories

/media/cdrom/apks
http://dl-3.alpinelinux.org/alpine/v2.6/main

Another example: upgrading from version 2.6 to 2.7 simply change:

http://dl-3.alpinelinux.org/alpine/v2.6/main

to

 http://dl-3.alpinelinux.org/alpine/v2.7/main

Thus, the file will now look like this:

Contents of /etc/apk/repositories

/media/cdrom/apks
http://dl-3.alpinelinux.org/alpine/v2.7/main

Only one repository is shown above; however, you may also replace http://dl-3.alpinelinux.org/alpine/ with any of the mirrors below:

After updating the repositories file, obtain the latest index of available packages:

apk update

Tip: Adding the -U/--update-cache to another apk command, as in apk add -U ... or apk upgrade -U, has the same effect as running apk update before the other apk command.