---
   - name: set default release
     lineinfile:
       path: "/etc/apt/apt.conf.d/99defaultrelease"
       line: APT::Default-Release "stable";
       create: yes

   - name: set default release
     blockinfile:
       path: "/etc/apt/apt.conf.d/sid.list"
       block: |
            deb http://ftp.at.debian.org/debian/ sid main non-free contrib
            deb-src http://ftp.at.debian.org/debian/ sid main non-free contrib
       create: yes

    - name: update apt cache
      apt: 
         update_cache: yes