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qusal/salt/qubes-builder/README.md
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qubes-builder

Setup Qubes OS Builder V2 in Qubes OS itself.

Table of Contents

Description

Setup a Builder qube named "qubes-builder" and a disposable template for Qubes Executor named "dvm-qubes-builder". It is possible to use any of the available executors: docker, podman, qubes-executor.

During installation, after cloning the qubes-builderv2 repository, signatures will be verified and the installation will fail if the signatures couldn't be verified. Packages necessary for split operations such as split-gpg2, spit-git and split-ssh-agent will also be installed.

Installation

The template is based on Fedora Minimal and not Debian Minimal due to the Qubes Executor lacking some dependencies on Debian such as mock. Even if the builder qube was Debian based, the executor qube still needs to be a Fedora template.

A set of trusted keys is placed into the qubes-builder to be used to verify the git repositories during this package installation. The split-gpg2 setup is not used during installation as it can't restrict access to a certain set of keys (GNUPGHOME) yet. Spit-gpg2 will be used for GPG operations transparently when verifying and signing software, don't worry.

  • Top
qubesctl top.enable qubes-builder
qubesctl --targets=tpl-qubes-builder,dvm-qubes-builder,qubes-builder state.apply
qubesctl top.disable qubes-builder
  • State
qubesctl state.apply qubes-builder.create
qubesctl --skip-dom0 --targets=tpl-qubes-builder state.apply qubes-builder.install
qubesctl --skip-dom0 --targets=dvm-qubes-builder state.apply qubes-builder.configure-qubes-executor
qubesctl --skip-dom0 --targets=qubes-builder state.apply qubes-builder.configure

Access Control

The policy is based on qubes-builderv2/rpc/50-qubesbuilder.policy. Extra services added are qubes.Gpg, qubes.Gpg2, qusal.GitInit, qusal.GitFetch, qusal.GitPush, qusal.SshAgent.

Out of these services, if an argument +qubes-builder can be specified to limit the scope, the action is allowed, else the action is to ask.

Usage

The builder qube is named qubes-builder.

When using the Qubes Executor, configure the builder.yml dispvm option to either dom0 or dvm-qubes-builder:

executor:
  type: qubes
  options:
    dispvm: "dom0"
    #dispvm: "dvm-qubes-builder"

Setting the Disposable VM to Dom0 works because it will use the default_dispvm preference of qubes-builder, which is dvm-qubes-builder.

There are no further modifications needed to comply with this package. Consult upstream documentation on how to use the Qubes OS Builder.