deb http://{{ debian_mirror }}/debian {{ debian_codename }} main {% if debian_codename != 'unstable' %} deb http://security.debian.org/ {{ debian_codename }}/updates main {% endif %} {% if debian_codename != 'buster' %} {% if debian_codename != 'unstable' %} deb http://{{ debian_mirror }}/debian {{ debian_codename }}-updates main deb http://{{ debian_mirror }}/debian {{ debian_codename }}-backports main {% endif %} {% endif %}