Noting these deprecation notices that pop up during a build:

TASK [Islandora-Devops.grok : Install Grok dependencies (apt)] *****************
Friday 16 August 2019  12:36:28 -0400 (0:00:00.033)       0:54:49.202 ********* 
[DEPRECATION WARNING]: Invoking "apt" only once while using a loop via 
squash_actions is deprecated. Instead of using a loop to supply multiple items 
and specifying `name: "{{ item }}"`, please use `name: ['cmake', 'libpng-dev', 
'libtiff-dev', 'liblcms2-dev']` and remove the loop. This feature will be 
removed in version 2.11. Deprecation warnings can be disabled by setting 
deprecation_warnings=False in ansible.cfg.
changed: [default] => (item=[u'cmake', u'libpng-dev', u'libtiff-dev', u'liblcms2-dev'])

TASK [Islandora-Devops.grok : Install Grok dependencies (yum)] *****************
Friday 16 August 2019  12:36:39 -0400 (0:00:11.281)       0:55:00.484 ********* 
[DEPRECATION WARNING]: Invoking "yum" only once while using a loop via 
squash_actions is deprecated. Instead of using a loop to supply multiple items 
and specifying `name: "{{ item }}"`, please use `name: ['cmake3', 'libpng-
devel', 'libtiff-devel', 'lcms2-devel']` and remove the loop. This feature will
 be removed in version 2.11. Deprecation warnings can be disabled by setting 
deprecation_warnings=False in ansible.cfg.
skipping: [default] => (item=[])