Comment 9 for bug 1693574

I tested the packages in trusty, xenial, zesty and artful. The Docker plugin runs well and gathers the expected information for Docker:

===================
Trusty

root@trustysosreport:/tmp/sosreport-trustysosreport-20180115193757# ls sos_commands/docker/
docker_images docker_inspect_c800e07175bf docker_network_ls docker_ps_-a docker_stats_--no-stream journalctl_--no-pager_--unit_docker
docker_info docker_inspect_efc145e48b1e docker_ps docker_ps_-as docker_version ls_-alhR_.etc.docker

root@trustysosreport:/tmp/sosreport-trustysosreport-20180115193757# dpkg -l | grep -i sosreport
ii sosreport 3.5-1~ubuntu14.04.1 amd64 Set of tools to gather troubleshooting data from a system

root@trustysosreport:/tmp/sosreport-trustysosreport-20180115193757# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.5 LTS
Release: 14.04
Codename: trusty

===================
Xenial

root@xenialsosreport:/tmp/sosreport-xenialsosreport-20180115193800# ls sos_commands/docker/
docker_images docker_inspect_3f8a4339aadd docker_network_inspect_bridge docker_network_inspect_none docker_ps docker_ps_-as docker_version ls_-alhR_.etc.docker
docker_info docker_inspect_60b785b1981b docker_network_inspect_host docker_network_ls docker_ps_-a docker_stats_--no-stream journalctl_--no-pager_--unit_docker

root@xenialsosreport:/tmp/sosreport-xenialsosreport-20180115193800# dpkg -l | grep -i sosreport
ii sosreport 3.5-1~ubuntu16.04.1 amd64 Set of tools to gather troubleshooting data from a system

root@xenialsosreport:/tmp/sosreport-xenialsosreport-20180115193800# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial

===================
Zesty

root@zestysosreport:/tmp/sosreport-zestysosreport-20180115193803# ls sos_commands/docker/
docker_images docker_inspect_3f8a4339aadd docker_network_inspect_bridge docker_network_inspect_none docker_ps docker_ps_-as docker_version ls_-alhR_.etc.docker
docker_info docker_inspect_f35ad9f7545c docker_network_inspect_host docker_network_ls docker_ps_-a docker_stats_--no-stream journalctl_--no-pager_--unit_docker

root@zestysosreport:/tmp/sosreport-zestysosreport-20180115193803# dpkg -l | grep -i sosreport
ii sosreport 3.5-1~ubuntu17.04.1 amd64 Set of tools to gather troubleshooting data from a system

root@zestysosreport:/tmp/sosreport-zestysosreport-20180115193803# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.04
Release: 17.04
Codename: zesty

===================
Artful

root@artfulsosreport:/tmp/sosreport-artfulsosreport-20180115193802# ls sos_commands/docker/
docker_images docker_inspect_3f8a4339aadd docker_network_inspect_bridge docker_network_inspect_none docker_ps docker_ps_-as docker_version ls_-alhR_.etc.docker
docker_info docker_inspect_f98581a186af docker_network_inspect_host docker_network_ls docker_ps_-a docker_stats_--no-stream journalctl_--no-pager_--unit_docker

root@artfulsosreport:/tmp/sosreport-artfulsosreport-20180115193802# dpkg -l | grep -i sosreport
ii sosreport 3.5-1~ubuntu17.10.1 amd64 Set of tools to gather troubleshooting data from a system

root@artfulsosreport:/tmp/sosreport-artfulsosreport-20180115193802# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful