Temporarily openshift_pkg_version against 3.7

It's complaining that we're installing 3.7 while 3.9 is available.
We'll upgrade to 3.9 eventually but for the time we need to explicitely
pin the package version so it doesn't warn us about it.

Also install openssl which is apparently no longer installed by
default.

Change-Id: Iecd677c18c186f15caeffb1c07742287f6febb0b

group_vars/OSEv3.yml

@@ -13,6 +13,8 @@ openshift_node_sdn_mtu: 1400
 openshift_deployment_type: origin
 deployment_subtype: registry
 openshift_release: v3.7
+# The dash prefix is on purpose, the matching is weird, see https://github.com/openshift/openshift-ansible/issues/8191
+openshift_pkg_version: -3.7.2-1.el7.git.0.cd74924
 # openshift_image_tag: v3.7.0
 # openshift_repos_enable_testing: true
 

run_tests.sh

@@ -60,6 +60,8 @@ function ko() {
     set -e
 }
 
+# Install required packages
+sudo yum install -y openssl
 
 # Generate the local SSL certificates
 sudo ./mock-certs.sh

tox.ini

@@ -23,7 +23,7 @@ whitelist_externals = bash
 [testenv:ansible-playbook]
 commands =
     rm -rf {toxinidir}/openshift-ansible
-    bash -c "git clone https://github.com/dmsimard/openshift-ansible; pushd openshift-ansible; git checkout rdo-test; popd"
+    bash -c "git clone https://github.com/dmsimard/openshift-ansible; pushd openshift-ansible; git checkout rdo-3.7; popd"
     pip install -r {toxinidir}/openshift-ansible/requirements.txt
     ansible-playbook {posargs}
     rm -rf {toxinidir}/openshift-ansible