Arvados

Most of our Ansible playbooks have a task that tries to bootstrap the packages you need to manage a node, like this:

    - name: Bootstrap packages required for Ansible
      become: yes
      ansible.builtin.raw: "apt-get -o DPkg::Lock::Timeout=300 -qy {{ item }}" 
      loop:
        - update
        - install acl gnupg python3-apt python3-debian python3-psycopg2 xz-utils

As they're currently written, these don't work as intended, because by default Ansible tries to gather facts when starting a play, and that requires the managed node already have python3 at least. Every time this task appears, move it into an early play with gather_facts: no.