/etc/cobbler/rsync.template is in maas-provision-common 2.2.2-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | # ******************************************************************
# Cobbler managed rsyncd.conf file
#
# generated from cobbler rsyncd.conf template ($date)
# Do NOT make changes to /etc/rsyncd.conf. Instead, make your changes
# in /etc/cobbler/rsyncd.template, as /etc/rsyncd.conf will be
# overwritten.
#
# ******************************************************************
[cobbler-distros]
    path    = $webdir/ks_mirror
    comment = All Cobbler Distros
[cobbler-repos]
    path    = $webdir/repo_mirror
    comment = All Cobbler Distros
[cobbler-kickstarts]
    path    = /var/lib/cobbler/kickstarts
    comment = Cobbler Kickstarts
[cobbler-snippets]
    path    = /var/lib/cobbler/snippets
    comment = Cobbler Snippets
[cobbler-triggers]
    path    = /var/lib/cobbler/triggers
    comment = Cobbler Triggers
#for repo in $repos:
[repo-$repo]
    path    = $webdir/repo_mirror/$repo
    comment = Cobbler Repo $repo
#end for
#for distro in $distros:
[distro-$distro.name]
    path    = $distro.path
    comment = Cobbler Distro $distro.name
#end for
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