rkt images

Building images

To build rkt images, you need to install the acbuild command line tool. To automate the installation of both acbuild and rkt using Ansible, you can use my rkt role.

Each directory in this repo contains a build.sh script that can be used to build an image, e.g:

$ cd tor-base && sudo ./build

The build script will produce a .aci file which you can import with rkt:

$ sudo rkt --insecure-options=image fetch ./tor-base.aci

$ sudo rkt image list
ID                  NAME                    IMPORT TIME     LAST USED       SIZE    LATEST
sha512-4d873d5b1f86	rkt.mrgnr.io/tor-base   14 minutes ago  14 minutes ago  295MiB  true

Note the use of the --insecure-options=image flag, which is used to disable image signature verifcation. You should only use this flag for development purposes. If you distribute your images, be sure to properly sign and verify them.

Using pre-built images

You can download pre-built images for this repo from https://rkt.mrgnr.io. First, run rkt trust to trust images from rkt.mrgnr.io that are signed using my key.

$ sudo rkt trust --prefix rkt.mrgnr.io https://keybase.io/mrgnr/key.asc

Verify that the output contains the same fingerprints as below:

gpg key fingerprint is: 3C59 695D 35AF 3F3F 8D07  A9F7 272B CF46 796C A791
    Subkey fingerprint: 77EE D522 FAE0 9A31 41B2  FE18 3F98 A921 D31E 62D9

Now you can fetch images and signatures will be verified automatically:

$ sudo rkt fetch rkt.mrgnr.io/tor