no working parameter combination for docker 1.x and root_dir

[Enrice]

If using the legacy distribution provided docker yum packages (1.13.1) there is no working combination of the following parameters due to wrong regexes in

puppetlabs-docker/manifests/init.pp

Line 546 in c861112

if ($version == undef) or ($version !~ /^(17[.][0-1][0-9][.][0-1](~|-|\.)ce|1.\d+)/) {

and

puppetlabs-docker/manifests/init.pp

Line 609 in c861112

if ($version != undef) and ($version =~ /^(17[.]0[0-4]|1.\d+)/) {

• version (specify or leave empty)
• root_dir (I need that)
• use_upstream_package_source => false (as documented in the README)
• service_overrides_template => false (as documented in the README)
• docker_ce_package_name => 'docker' (as documented in the README)

Actual Problem

If version is specified, all docker_ce_* parameters are ignored.
If version is not specified, the root_dir_flag will be '--data-root', which does not yet exist in 1.13.1.

Environment

• any module version, but used latest 9.1.0
• CentOS 7

Some thoughts

The regexes trying to cover 1.x are wrong anyway:
1.\d+
matches ANY character after 1, which is not intended...
And what about versions 0.x?

I would come up with the following for 0.x and 1.x:
[01][.]\d+[.]\d
which also addresses semver conformity.