Signing Key for testing Flatcar ARM images

Background

For testing experimental Flatcar ARM64 images, we need a GPG key with an ID of A7D6E04307F00419. The key can be downloaded below.

Usage

Download the key and import it into your local GPG key ring:

$ cd /tmp
$ curl -LO https://www.flatcar-linux.org/security/image-signing-key/Flatcar_ARM_Testing_Key.asc
$ gpg --import Flatcar_ARM_Testing_Key.asc
gpg: key 0xA7D6E04307F00419: public key "Flatcar ARM testing key (key for testing experimental Flatcar ARM images) <buildbot@flatcar-linux.org>"
gpg: Total number processed: 1
gpg:               imported: 1

To verify the integrity of a file, you can now use GPG’s --verify command.

For example, to verify a flatcar_production_pxe_image.cpio.gz image file:

$ gpg --verify flatcar_production_pxe_image.cpio.gz.sig flatcar_production_pxe_image.cpio.gz

Flatcar ARM image testing key

-----BEGIN PGP PUBLIC KEY BLOCK-----

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=nnzN
-----END PGP PUBLIC KEY BLOCK-----