There isn't a module for installing .deb packages directly. When you have to run dpkg as a command, it always mark the installation task as one that has changed. I'd some trouble configuring it correctly, so I'm posting here as a public notebook.
Here is the task to install with dpkg:
- name: Install old python
command: dpkg -i {{ temp_dir }}/{{ item }}
with_items:
- python2.4-minimal_2.4.6-6+precise1_i386.deb
- python2.4_2.4.6-6+{{ ubuntu_release }}1_i386.deb
- libpython2.4_2.4.6-6+{{ ubuntu_release }}1_i386.deb
- python2.4-dev_2.4.6-6+{{ ubuntu_release }}1_i386.deb
The files where uploaded to {{temp_dir}} in another task.
In Ansible 1.6 (and newer), the apt module has a deb option:
- apt: deb=/tmp/mypackage.deb